Powered by Deep Web Technologies
Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Potential Carcinogenicity of Food Additives and Contaminants  

Science Journals Connector (OSTI)

...Carcinogenicity of Food Additives and Contaminants 1...RESEARCH VOL.35 Food Additives and Contaminants argument...substance that caused removal of the cranberries...consideration was given to the removal of Tween 60 as a food additive. The compound has...

Philippe Shubik

1975-11-01T23:59:59.000Z

2

Air Resources: Prevention and Control of Air Contamination and Air  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air Resources: Prevention and Control of Air Contamination and Air Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) Air Resources: Prevention and Control of Air Contamination and Air Pollution, Air Quality Classifications and Standards, and Air Quality Area Classifications (New York) < Back Eligibility Agricultural Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Multi-Family Residential Municipal/Public Utility Nonprofit Rural Electric Cooperative Schools State/Provincial Govt Transportation Tribal Government Utility Program Info State New York Program Type Environmental Regulations Provider NY Department of Environmental Conservation These regulations establish emissions limits and permitting and operational

3

Potential Carcinogenicity of Food Additives and Contaminants  

Science Journals Connector (OSTI)

...Carcinogenicity of Food Additives and Contaminants 1...as a result of the manufacturing process used; an example...Specifi cations of food additives are of immense significance...use of DES as a food additive for cattle. I am unable...occupational hazards from manufacturing these materials even...

Philippe Shubik

1975-11-01T23:59:59.000Z

4

OPEN AIR DEMOLITION OF FACILITIES HIGHLY CONTAMINATED WITH PLUTONIUM  

SciTech Connect

The demolition of highly contaminated plutonium buildings usually is a long and expensive process that involves decontaminating the building to near free- release standards and then using conventional methods to remove the structure. It doesn't, however, have to be that way. Fluor has torn down buildings highly contaminated with plutonium without excessive decontamination. By removing the select source term and fixing the remaining contamination on the walls, ceilings, floors, and equipment surfaces; open-air demolition is not only feasible, but it can be done cheaper, better (safer), and faster. Open-air demolition techniques were used to demolish two highly contaminated buildings to slab-on-grade. These facilities on the Department of Energy's Hanford Site were located in, or very near, compounds of operating nuclear facilities that housed hundreds of people working on a daily basis. To keep the facilities operating and the personnel safe, the projects had to be creative in demolishing the structures. Several key techniques were used to control contamination and keep it within the confines of the demolition area: spraying fixatives before demolition; applying fixative and misting with a fine spray of water as the buildings were being taken down; and demolishing the buildings in a controlled and methodical manner. In addition, detailed air-dispersion modeling was done to establish necessary building and meteorological conditions and to confirm the adequacy of the proposed methods. Both demolition projects were accomplished without any spread of contamination outside the modest buffer areas established for contamination control. Furthermore, personnel exposure to radiological and physical hazards was significantly reduced by using heavy equipment rather than ''hands on'' techniques.

LLOYD, E.R.

2007-05-31T23:59:59.000Z

5

Scrubbing of contaminants from contaminated air streams with aerogel materials with optional photocatalytic destruction  

SciTech Connect

Disclosed is a method for separating a vaporous or gaseous contaminant from an air stream contaminated therewith. This method includes the steps of: (a) passing said contaminated air into a contact zone in which is disposed an aerogel material capable of selecting adsorbing said contaminant from air and therein contacting said contaminated air with an aerogel material; and (b) withdrawing from said zone, air depleted of said contaminant. For present purposes, "contaminant" means a material not naturally occurring in ambient air and/or a material naturally occurring in air but present at a concentration above that found in ambient air. Thus, the present invention scrubs (or treats) air for the purpose of returning it to its ambient composition. Also disclosed herein is a process for the photocatalytic destruction of contaminants from an air stream wherein the contaminated air stream is passed into a control cell or contact zone in which is disposed a photocatalytic aerogel and exposing said aerogel to ultraviolet (UV) radiation for photocatalytically destroying the adsorbed contaminant, and withdrawing from said cell an exhaust air stream depleted in said contaminant.

Attia, Yosry A. (221 Oakland Park Ave., Columbus, OH 43214)

2000-01-01T23:59:59.000Z

6

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

NLE Websites -- All DOE Office Websites (Extended Search)

Hazard Assessment of Chemical Air Contaminants Measured in Residences Hazard Assessment of Chemical Air Contaminants Measured in Residences Title Hazard Assessment of Chemical Air Contaminants Measured in Residences Publication Type Journal Article LBNL Report Number LBNL-3650E Year of Publication 2011 Authors Logue, Jennifer M., Thomas E. McKone, Max H. Sherman, and Brett C. Singer Journal Indoor Air Volume 21 Start Page 92 Issue 2 Pagination 92-109 Date Published 04/2011 Keywords resave Abstract Identifying air pollutants that pose a potential hazard indoors can facilitate exposure mitigation. In this study, we compiled summary results from 77 published studies reporting measurements of chemical pollutants were representative of concentrations in residences in the United States. These data were used to calculate representative mid-range and upper bound concentrations relevant to chronic exposures for 267 pollutants and representative peak concentrations relevant to acute exposures for 5 activity-associated pollutants. Representative concentrations are compared to available chronic and acute health standards for 97 pollutants. Fifteen pollutants are identified as contaminants of concern for chronic health effects in a large fraction of homes. Nine pollutants are identified as potential chronic health hazards in a substantial minority of homes and an additional nine are identified as potential hazards in a very small percentage of homes. Nine pollutants are identified as priority hazards based on robustness of reported concentration data and fraction of residences that appear to be impacted: acetaldehyde; acrolein; benzene; 1,3- butadiene; 1,4-dichlorobenzene; formaldehyde; naphthalene; nitrogen dioxide; and PM2.5. Activity-based emissions are shown to pose potential acute health hazards for PM2.5, formaldehyde, CO, chloroform, and NO2.

7

Kentucky Department for Natural Resources and Environmental Protection permit application for air contaminant source: SRC-I demonstration plant, Newman, Kentucky. Supplement I. [Additional information on 38 items requested by KY/DNREP  

SciTech Connect

In response to a letter from KY/DNREP, January 19, 1981, ICRC and DOE have prepared the enclosed supplement to the Kentucky Department for Natural Resources and Environmental Protection Permit Application for Air Contaminant Source for the SRC-I Demonstration Plant. Each of the 38 comments contained in the letter has been addressed in accordance with the discussions held in Frankfort on January 28, 1981, among representatives of KY/DNREP, EPA Region IV, US DOE, and ICRC. The questions raised involve requests for detailed information on the performance and reliability of proprietary equipment, back-up methods, monitoring plans for various pollutants, composition of wastes to flares, emissions estimates from particular operations, origin of baseline information, mathematical models, storage tanks, dusts, etc. (LTN)

none,

1981-02-13T23:59:59.000Z

8

Effect of System and Air Contaminants on PEMFC Performance and Durability (Presentation)  

SciTech Connect

This presentation summarizes Effect of System and Air Contaminants on PEMFC Performance and Durability.

Dinh, H.

2010-06-11T23:59:59.000Z

9

Subsurface Gasoline Contamination: An Indoor Air Quality Field Study  

NLE Websites -- All DOE Office Websites (Extended Search)

4 4 Subsurface Gasoline Contamination: An Indoor Air Quality Field Study Schematic of soil-gas and contaminant transport into a slab-on-grade building at a former service station site. Three effects are illustrated that can contribute to reducing the amount of contaminant available for entry into the building: biodegradation by soil microorganisms; a layer of soil that limits diffusive movement of the contaminant; and wind-driven ventilation of the soil below the building. Not illustrated are the effects of ventilation on contaminant concentrations inside the building. The transport of soil-gas-borne contaminants into buildings has been documented as a significant source of human exposure to some pollutants indoors; one example is radon, which has received widespread public

10

Impacts of Contaminant Storage on Indoor Air Quality: Model Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Impacts of Contaminant Storage on Indoor Air Impacts of Contaminant Storage on Indoor Air Quality: Model Development Max H. Sherman and Erin L. Hult Environmental Energy Technologies Division January 2013 In Press as Sherman, M.H., Hult, E.L. 2013. Impacts of contaminant storage on indoor air quality: Model development. Atmospheric Environment. LBNL-6114E 2 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor the Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any

11

Removal of ammonia from contaminated air in a biotrickling filter Denitrifying bioreactor combination system  

E-Print Network (OSTI)

, and loadings below 56 g m�3 h�1 resulted in essentially complete removal of ammonia. In addition, concenRemoval of ammonia from contaminated air in a biotrickling filter ­ Denitrifying bioreactor Nitrification Denitrification a b s t r a c t The removal of gaseous ammonia in a system consisting

12

Impacts of contaminant storage on indoor air quality: Model development  

NLE Websites -- All DOE Office Websites (Extended Search)

of of contaminant storage on indoor air quality: Model development Max H. Sherman, Erin L. Hult * Lawrence Berkeley National Laboratory, 1 Cyclotron Road MS 90R3083, Berkeley, CA 94720-8133, USA h i g h l i g h t s < A lumped parameter model is applied to describe emission and storage buffering of contaminants. < Model is used to assess impact of ventilation on indoor formaldehyde exposure. < Observations of depletion of stored contaminants can be described by model. a r t i c l e i n f o Article history: Received 8 November 2012 Received in revised form 7 February 2013 Accepted 11 February 2013 Keywords: Buffering capacity Formaldehyde Moisture a b s t r a c t A first-order, lumped capacitance model is used to describe the buffering of airborne chemical species by building materials and furnishings in the indoor environment. The model is applied to describe the interaction between formaldehyde

13

Measurements of air contaminants during the Cerro Grande fire at Los Alamos National Laboratory  

SciTech Connect

Ambient air sampling for radioactive air contaminants was continued throughout the Cerro Grande fire that burned part of Los Alamos National Laboratory. During the fire, samples were collected more frequently than normal because buildup of smoke particles on the filters was decreasing the air flow. Overall, actual sampling time was 96% of the total possible sampling time for the May 2000 samples. To evaluate potential human exposure to air contaminants, the samples were analyzed as soon as possible and for additional specific radionuclides. Analyses showed that the smoke from the fire included resuspended radon decay products that had been accumulating for many years on the vegetation and the forest floor that burned. Concentrations of plutonium, americium, and depleted uranium were also measurable, but at locations and concentrations comparable to non-fire periods. A continuous particulate matter sampler measured concentrations that exceeded the National Ambient Air Quality Standard for PM-10 (particles less than 10 micrometers in diameter). These high concentrations were caused by smoke from the fire when it was close to the sampler.

Eberhart, Craig

2010-08-01T23:59:59.000Z

14

GRR/Section 15-OR-a - Air Contaminant Discharge Permit | Open Energy  

Open Energy Info (EERE)

5-OR-a - Air Contaminant Discharge Permit 5-OR-a - Air Contaminant Discharge Permit < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 15-OR-a - Air Contaminant Discharge Permit 15ORAAirContaminantDischargePermit (1).pdf Click to View Fullscreen Contact Agencies Oregon Department of Environmental Quality Regulations & Policies ORS Chapter 468a OAR 340-209 OAR 340-216 340-216-0020 (Table 1) Triggers None specified Click "Edit With Form" above to add content 15ORAAirContaminantDischargePermit (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative The Oregon Department of Environmental Quality (DEQ) regulates air

15

HOSPITAL VENTILATION STANDARDS AND ENERGY CONSERVATION: CHEMICAL CONTAMINATION OF HOSPITAL AIR. FINAL REPORT.  

E-Print Network (OSTI)

LBL-10475 EEB-Hosp 79-6 HOSPITAL VENTILATION STANDARDS ANDCHH1ICAL CONTAMINATION OF HOSPITAL AIR na 1 Report DavidMinnesota 55455 TWIN CITIES HOSPITAL VEtHILATION STANDARDS

Rainer, David

2012-01-01T23:59:59.000Z

16

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

SciTech Connect

Identifying air pollutants that pose a potential hazard indoors can facilitate exposure mitigation. In this study, we compiled summary results from 77 published studies reporting measurements of chemical pollutants in residences in the United States and in countries with similar lifestyles. These data were used to calculate representative mid-range and upper bound concentrations relevant to chronic exposures for 267 pollutants and representative peak concentrations relevant to acute exposures for 5 activity-associated pollutants. Representative concentrations are compared to available chronic and acute health standards for 97 pollutants. Fifteen pollutants appear to exceed chronic health standards in a large fraction of homes. Nine other pollutants are identified as potential chronic health hazards in a substantial minority of homes and an additional nine are identified as potential hazards in a very small percentage of homes. Nine pollutants are identified as priority hazards based on the robustness of measured concentration data and the fraction of residences that appear to be impacted: acetaldehyde; acrolein; benzene; 1,3-butadiene; 1,4-dichlorobenzene; formaldehyde; naphthalene; nitrogen dioxide; and PM{sub 2.5}. Activity-based emissions are shown to pose potential acute health hazards for PM{sub 2.5}, formaldehyde, CO, chloroform, and NO{sub 2}.

Logue, J.M.; McKone, T.E.; Sherman, M. H.; Singer, B.C.

2010-05-10T23:59:59.000Z

17

Effectiveness of Germicidal UV Radiation for Reducing Fungal Contamination within Air-Handling Units  

Science Journals Connector (OSTI)

...and air-conditioning (HVAC) systems and is a potential...been found growing on air filters, insulation, and cooling...bioaerosols or when the HVAC system itself is contaminated...maintained high-quality filters within HVAC systems as well as portable...

Estelle Levetin; Richard Shaughnessy; Christine A. Rogers; Robert Scheir

2001-08-01T23:59:59.000Z

18

Particulate air contamination in Puerto Rico: A student involvement project  

Science Journals Connector (OSTI)

The results of a 114?day study of the air pollution in Ponce Puerto Rico are presented. Techniques of instrument calibration and statistical analysis are also discussed. (AIP)

Richard R. Eckert

1979-01-01T23:59:59.000Z

19

Effect of System and Air Contaminants on PEMFC Performance and Durability  

NLE Websites -- All DOE Office Websites (Extended Search)

Dinh Dinh (PI) National Renewable Energy Laboratory October 1, 2009 Effect of System and Air Contaminants on PEMFC Performance and Durability This presentation does not contain any proprietary, confidential, or otherwise restricted information Objectives To assist the DOE Fuel Cell Technologies (FCT) Program in meeting cost, durability, and performance targets in the areas of fuel cell systems. The effort is focused on system-derived contaminants, but has a small component addressing "gaps" in the area of air contaminants. Premise System-derived contaminants can have negative effect on fuel cell performance. Current density (A/cm 2 ) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 g ( SHE ) Average cell voltage after air oxidation exposure Average cell voltage as measured in vehicle

20

Effect of System and Air Contaminants on PEMFC Performance and...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Pump Combustor? Radiator H 2 recirc pmp Coolant Loop Water Separator Cathode Loop Anode Loop Air Compressor 90 kWe Table 1. Typical "gas wetted" components used in a PEMFC...

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Impacts of contaminant storage on indoor air quality: Model development  

E-Print Network (OSTI)

additional resistance between the storage material and theWhen resistance to transport between storage materials andthe resistance to transport across the storage material, the

Sherman, Max H.

2014-01-01T23:59:59.000Z

22

Towards internationally acceptable standards for food additives and contaminants based on the use of risk analysis  

Science Journals Connector (OSTI)

Internationally acceptable norms need to incorporate sound science and consistent risk management principles in an open and transparent manner, as set out in the Agreement on the Application of Sanitary and Phytosanitary Measures (the SPS Agreement). The process of risk analysis provides a procedure to reach these goals. The interaction between risk assessors and risk managers is considered vital to this procedure. This paper reports the outcome of a meeting of risk assessors and risk managers on specific aspects of risk analysis and its application to international standard setting for food additives and contaminants. Case studies on aflatoxins and aspartame were used to identify the key steps of the interaction process which ensure scientific justification for risk management decisions. A series of recommendations were proposed in order to enhance the scientific transparency in these critical phases of the standard setting procedure.

Anthony Huggett; Barbara J Petersen; Ron Walker; Chris E Fisher; Servé H.W Notermans; Frans M Rombouts; Peter Abbott; M Debackere; Steve C Hathaway; Edwin F.F Hecker; Ada G.A Knaap; Paul M Kuznesof; Inge Meyland; Gerald Moy; Jean-François Narbonne; Juhani Paakkanen; Maurice R Smith; David Tennant; Peter Wagstaffe; John Wargo; Gunna Würtzen

1998-01-01T23:59:59.000Z

23

Water soluble graphene as electrolyte additive in magnesium-air battery system  

Science Journals Connector (OSTI)

Abstract Magnesium-air (Mg-air) batteries are an important energy source used to power electronic equipment and automobiles. Metal-air batteries give more energy density due to surplus air involved in reduction reaction at air cathode. In this study, the scope of improvements in the efficiency of Metal-air batteries is investigated through addition of water soluble graphene (WSG) as inhibitor in NaCl electrolyte. The discharge performance, corrosion behaviour and electrochemical impedance are studied for (i) the conventional Mg-air battery using 3.5% NaCl and (ii) Mg-air battery with WSG-based 3.5% NaCl electrolyte. X-ray diffraction analysis for WSG is carried out and it shows the crystalline nature of WSG by an intense sharp peak at 26.3°. Scanning electron microscope study is also performed and shows the flake-like structure of WSG denoted by thin layers of carbon. The immersion of WSG in 3.5% NaCl electrolyte increased the current density from 13.24 to 19.33 mA cm?2. Meanwhile, the WSG-based Mg-air battery was found to hold specific discharge capacity of 1030.71 mAh g?1, which was higher than that obtained in 3.5% NaCl electrolyte (i.e., 822.85 mAh g?1). The WSG-based Mg-air battery shows good self-discharge capacity and higher electrochemical activity during discharge.

K. Saminathan; M. Mayilvel Dinesh; M. Selvam; S.R. Srither; V. Rajendran; Karan V.I.S. Kaler

2015-01-01T23:59:59.000Z

24

Metal-air cell comprising an electrolyte with a room temperature ionic liquid and hygroscopic additive  

DOE Patents (OSTI)

An electrochemical cell comprising an electrolyte comprising water and a hydrophobic ionic liquid comprising positive ions and negative ions. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. A hydrophilic or hygroscopic additive modulates the hydrophobicity of the ionic liquid to maintain a concentration of the water in the electrolyte is between 0.001 mol % and 25 mol %.

Friesen, Cody A.; Krishnan, Ramkumar; Tang, Toni; Wolfe, Derek

2014-08-19T23:59:59.000Z

25

Hospital ventilation standards and energy conservation: chemical contamination of hospital air. Final report  

SciTech Connect

In an era of increasing energy conservation consciousness, a critical reassessment of the validity of hospital ventilation and thermal standards is made. If current standards are found to be excessively conservative, major energy conservation measures could be undertaken by rebalancing and/or modification of current HVAC systems. To establish whether or not reducing ventilation rates would increase airborne chemical contamination to unacceptable levels, a field survey was conducted to develop an inventory and dosage estimates of hospital generated airborne chemical contaminants to which patients, staff, and visitors are exposed. The results of the study are presented. Emphasis is on patient exposure, but an examination of occupational exposure was also made. An in-depth assessment of the laboratory air environment is documented. Housekeeping products used in survey hospitals, hazardous properties of housekeeping chemicals and probable product composition are discussed in the appendices.

Rainer, D.; Michaelsen, G.S.

1980-03-01T23:59:59.000Z

26

Glass fiber contamination of cigarette filters: an additional health risk to the smoker?  

Science Journals Connector (OSTI)

Articles Glass fiber contamination of cigarette filters...cigarette-appearing smoking article labeled Eclipse with glass fibers, fragments, and particles. Eclipse...insulated and bound with two wrapping mats of glass fibers. Recently, Eclipse has been modified...

J L Pauly; H J Lee; E L Hurley; K M Cummings; J D Lesses; R J Streck

1998-11-01T23:59:59.000Z

27

Current Challenges in Air Sampling of Semivolatile Organic Contaminants: Sampling Artifacts and Their Influence on Data Comparability  

Science Journals Connector (OSTI)

Current Challenges in Air Sampling of Semivolatile Organic Contaminants: Sampling Artifacts and Their Influence on Data Comparability ... Unlike AAS, passive air samplers (PAS) do not need electricity; instead chemicals are trapped by diffusive uptake to a sorbent material. ... A big question when using PAS for SVOCs is their performance for particle-associated compounds. ...

Lisa Melymuk; Pernilla Bohlin; Ond?ej Sá?ka; Karla Pozo; Jana Klánová

2014-10-20T23:59:59.000Z

28

Volatile tritiated organic acids in stack effluents and in air surrounding contaminated materials  

SciTech Connect

A small fraction of the tritium released into the atmosphere from tritium-handling or solid waste storage facilities was shown to be in the form of volatile organic acids. The same compounds were also found, but at a much higher proportion, in the tritium evolved at room temperature from highly contaminated materials placed under air atmospheres. This might be due to the oxidation and labeling of hydrocarbon(s) by mechanisms that are presumably of a radiolytic nature. The new forms could have an impact on operational requirements and waste management strategies within a tritium facility and a fusion reactor hall. Further data are needed to assess the related doses.

Belot, Y.; Camus, H.; Marini, T.; Raviart, S. (Institut de Protection et de Surete Nucleaire (France))

1993-06-01T23:59:59.000Z

29

Soot formation in aerodynamically strained methane-air and ethylene-air diffusion flames with chloromethane addition  

SciTech Connect

The effects of chloromethane (CH{sub 3}Cl) addition on soot inception in methane-air and ethylene-air counterflow diffusion flames were investigated by varying the concentrations of chloromethane and nitrogen in the fuel stream. Experiments showed a monotonic increase in the critical sooting stretch rate for methane-air flames when methane was replaced by chloromethane, while ethylene and chloromethane flames exhibited a larger sooting tendency than flames under comparable conditions and burning either ethylene or chloromethane alone. For the conditions investigated, the critical sooting stretch rates of methane-chloromethane-nitrogen flames were shown to be primarily a function of the chloromethane loading in the fuel stream. The structure of these flames was modeled using detailed chemistry and transport. Modeling results suggested that the enhancement of soot formation in ethylene-chloromethane flames may be a combined result of increased concentrations of C{sub 2} species and chlorinated C{sub 1} radicals (CH{sub 2}Cl and CHCl). A large rate of the reactions among these species may be the first steps in the molecular growth processes, which leads to the inception of soot particles. (author)

Leylegian, J.C. [ATK GASL NY Operations, 77 Raynor Avenue, Ronkonkoma, NY 11779-6648 (United States)

2008-01-15T23:59:59.000Z

30

(Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio)  

SciTech Connect

In April 1990, Wright-Patterson Air Force Base (WPAFB), initiated an investigation to evaluate a potential Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) removal action to prevent, to the extent practicable, the offsite migration of contaminated ground water from WPAFB. WPAFB retained the services of the Environmental Management Operations (EMO) and its principle subcontractor, International Technology Corporation (IT) to complete Phase 1 of the environmental investigation of ground-water contamination at WPAFB. Phase 1 of the investigation involves the short-term evaluation and potential design for a program to remove ground-water contamination that appears to be migrating across the western boundary of Area C, and across the northern boundary of Area B along Springfield Pike. Primarily, Task 4 of Phase 1 focuses on collection of information at the Area C and Springfield Pike boundaries of WPAFB. This Sampling and Analysis Plan (SAP) has been prepared to assist in completion of the Task 4 field investigation and is comprised of the Quality Assurance Project Plan (QAPP) and the Field Sampling Plan (FSP).

Not Available

1991-10-01T23:59:59.000Z

31

Air Monitoring Leads to Discovery of New Contamination at Radioactive Waste Disposal Site (Area G) at LANL  

SciTech Connect

Air monitoring at Area G, the low-level radioactive waste disposal area at Los Alamos National Laboratory, revealed increased air concentrations of {sup 239}Pu and {sup 241}Am at one location along the north boundary. This air monitoring location is a couple of meters north of a dirt road used to access the easternmost part of Area G. Air concentrations of {sup 238}Pu were essentially unaffected, which was puzzling because the {sup 238}Pu and {sup 239}Pu are present in the local, slightly contaminated soils. Air concentrations of these radionuclides increased about a factor of ten in early 1995 and remained at those levels until the first quarter of 1996. During the spring of 1996 air concentrations again increased by a factor of about ten. No other radionuclides were elevated and no other Area G stations showed elevations of these radionuclides. After several formal meetings didn't provide an adequate cause for the elevations, a gamma survey was performed and showed a small area of significant contamination just south of the monitor location. We found in February, 1995, a trench for a water line had been dug within a meter of so of the air stations. Then, during early 1996, the dirt road was rerouted such that its new path was directly over the unknown contamination. It appears that the trenching brought contaminated material to the surface and caused the first rise in air concentrations and then the rerouting of the road over the contamination caused the second rise, during 1996. We also found that during 1976 and 1977 contaminated soils from the clean-up of an old processing facility had been spread over the filled pits in the vicinity of the air monitors. These soils were very low in 238Pu which explains why we saw very little {sup 238}Pu in the increased air concentrations. A layer of gravel and sand was spread over the contaminated area. Although air concentrations of {sup 239}Pu and {sup 241}Am dropped considerably, the y have not returned to pre-1995 levels.

Kraig, D.H.; Conrad, R.C.

1999-06-08T23:59:59.000Z

32

Air is Still Contaminated 40 Years after the Michigan Chemical Plant Disaster in St. Louis, Michigan  

Science Journals Connector (OSTI)

In addition to the plant site itself, there are two other Superfund sites associated with the former Michigan Chemical site; these include the Velsicol Burn Pit (for some odd reason located on the Gratiot County Golf Course) and the Gratiot County Landfill. ... From 1956 until 1970, Velsicol used the burn pit to dispose of 7,500–11,400 L of hazardous waste including DDT. ... In 1982, Velsicol removed 52,000 m3 of soil from the burn pit and placed it under the clay cap on the plant site; nevertheless, contamination was still seen at the burn pit site in 2006. ...

Angela A. Peverly; Amina Salamova; Ronald A. Hites

2014-09-11T23:59:59.000Z

33

Bioaccumulation Potential Of Air Contaminants: Combining Biological Allometry, Chemical Equilibrium And Mass-Balances To Predict Accumulation Of Air Pollutants In Various Mammals  

SciTech Connect

In the present study we develop and test a uniform model intended for single compartment analysis in the context of human and environmental risk assessment of airborne contaminants. The new aspects of the model are the integration of biological allometry with fugacity-based mass-balance theory to describe exchange of contaminants with air. The developed model is applicable to various mammalian species and a range of chemicals, while requiring few and typically well-known input parameters, such as the adult mass and composition of the species, and the octanol-water and air-water partition coefficient of the chemical. Accumulation of organic chemicals is typically considered to be a function of the chemical affinity forlipid components in tissues. Here, we use a generic description of chemical affinity for neutral and polar lipids and proteins to estimate blood-air partition coefficients (Kba) and tissue-air partition coefficients (Kta) for various mammals. This provides a more accurate prediction of blood-air partition coefficients, as proteins make up a large fraction of total blood components. The results show that 75percent of the modeled inhalation and exhalation rate constants are within a factor of 2 from independent empirical values for humans, rats and mice, and 87percent of the predicted blood-air partition coefficients are within a factor of 5 from empirical data. At steady-state, the bioaccumulation potential of air pollutants is shown to be mainly a function of the tissue-air partition coefficient and the biotransformation capacity of the species and depends weakly on the ventilation rate and the cardiac output of mammals.

Veltman, Karin; McKone, Thomas E.; Huijbregts, Mark A.J.; Hendriks, A. Jan

2009-03-01T23:59:59.000Z

34

(Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio)  

SciTech Connect

This Removal Action System Design has been prepared as a Phase I Volume for the implementation of the Phase II removal action at Wright-Patterson Air Force Base (WPAFB) near Dayton, Ohio. The objective of the removal action is to prevent, to the extent practicable, the migration of ground water contaminated with chlorinated volatile organic compounds (VOCS) across the southwest boundary of Area C. The Phase 1, Volume 9 Removal Action System Design compiles the design documents prepared for the Phase II Removal Action. These documents, which are presented in Appendices to Volume 9, include: Process Design, which presents the 30 percent design for the ground water treatment system (GWTS); Design Packages 1 and 2 for Earthwork and Road Construction, and the Discharge Pipeline, respectively; no drawings are included in the appendix; Design Package 3 for installation of the Ground Water Extraction Well(s); Design Package 4 for installation of the Monitoring Well Instrumentation; and Design Package 5 for installation of the Ground Water Treatment System; this Design Package is incorporated by reference because of its size.

Not Available

1992-04-01T23:59:59.000Z

35

Air Pollution Control Regulations: No. 7- Emission of Air Contaminants Detrimental to Person or Property (Rhode Island)  

Energy.gov (U.S. Department of Energy (DOE))

No person shall emit any contaminant which either alone or in connection with other emissions, by reason of their concentration or duration, may be injurious to human, plant or animal life, or...

36

OPERATIONAL LIMITATIONS FOR DEMOLITION OF A HIGHLY ALPHA CONTAMINATED BUILDING MODLES VERSUS MEASURED AIR & SURFACE ACTIVITY CONCENTRATIONS  

SciTech Connect

The demolition of a facility historically used for processing and handling transuranic materials is considered. Residual alpha emitting radionuclide contamination poses an exposure hazard if released to the local environment during the demolition. The process of planning for the demolition of this highly alpha contaminated building, 232-Z, included a predemolition modeling analysis of potential exposures. Estimated emission rates were used as input to an air dispersion model to estimate frequencies of occurrence of peak air and surface exposures. Postdemolition modeling was also conducted, based on the actual demolition schedule and conditions. The modeling results indicated that downwind deposition is the main operational limitation for demolition of a highly alpha-contaminated building. During the demolition of 232-Z, airborne radiation and surface contamination were monitored. The resultant non-detect monitoring results indicate a significant level of conservatism in the modeled results. This comparison supports the use of more realistic assumption in the estimating emission rates. The resultant reduction in modeled levels of potential exposures has significant implications in terms of the projected costs of demolition of such structures.

LLOYD, E.R.

2006-11-02T23:59:59.000Z

37

E-Print Network 3.0 - air contamination event Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications and Products Collection: Environmental Sciences and Ecology 2 The sediment resuspension event scours dissolved phase contaminants from the water column. As a...

38

E-Print Network 3.0 - air contamination due Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Experimental Validation of a Computational Fluid Dynamics Model for IAQ applications in Ice Rink Arenas Summary: dynamics (CFD) model has been used to predict the contaminant...

39

E-Print Network 3.0 - air contaminants combining Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Engineering, Purdue University Collection: Engineering 9 Proceedings of Healthy Buildings 2009 Paper 680 Do forced air HVAC systems have a role in healthy homes? Summary:...

40

Copper contamination effects on hydrogen-air combustion under SCRAMJET (supersonic combustion ramjet) testing conditions  

SciTech Connect

Two forms of copper catalytic reactions (homogeneous and heterogeneous) in hydrogen flames were found in a literature survey. Hydrogen atoms in flames recombine into hydrogen molecules through catalytic reactions, and these reactions which affect the timing of the combustion process. Simulations of hydrogen flames with copper contamination were conducted by using a modified general chemical kinetics program (GCKP). Results show that reaction times of hydrogen flames are shortened by copper catalytic reactions, but ignition times are relatively insensitive to the reactions. The reduction of reaction time depends on the copper concentration, copper phase, particle size (if copper is in the condensed phase), and initial temperature and pressure. The higher the copper concentration of the smaller the particle, the larger the reduction in reaction time. For a supersonic hydrogen flame (Mach number = 4.4) contaminated with 200 ppm of gaseous copper species, the calculated reaction times are reduced by about 9%. Similar reductions in reaction time are also computed for heterogeneous copper contamination. Under scramjet testing conditions, the change of combustion timing appears to be tolerable (less than 5%) if the Mach number is lower than 3 or the copper contamination is less than 100 ppm. The higher rate the Mach number, the longer the reaction time and the larger the copper catalytic effects. 7 tabs., 8 figs., 34 refs.

Chang, S.L.; Lottes, S.A.; Berry, G.F.

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Crude oil contaminated soil washing in air sparging assisted stirred tank reactor using biosurfactants  

Science Journals Connector (OSTI)

This study investigated the removal of crude oil from soil using air sparging assisted stirred tank reactors. Two surfactants (rhamnolipid and sodium dodecyl sulfate, SDS) were tested and the effects of different parameters (i.e. temperature, surfactant concentrations, washing time, volume/mass ratio) were investigated under varying washing modes namely, stirring only, air sparging only and the combination of stirring and air sparging. The results showed that SDS removed more than 80% crude oil from non-weathered soil samples, whist rhamnolipid showed similar oil removal at the third and fourth levels of the parameters tested. The oil removal ability of the seawater prepared solutions were better than those of the distilled water solutions at the first and second levels of temperature and concentration of surfactant solutions. This approach of soil washing was noted to be effective in reducing the amount of oil in soil. Therefore we suggested that a field scale test be conducted to assess the efficiency of these surfactants.

Kingsley Urum; Turgay Pekdemir; David Ross; Steve Grigson

2005-01-01T23:59:59.000Z

42

Atmospheric Environment 38 (2004) 28412865 Cleaning products and air fresheners  

E-Print Network (OSTI)

Atmospheric Environment 38 (2004) 2841­2865 Cleaning products and air fresheners: exposure of certain cleaning products and air fresheners. In addition, many cleaning agents and air fresheners contain chemicals that can react with other air contaminants to yield potentially harmful secondary products

Short, Daniel

43

[Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio]. Volume 9, Removal action system design  

SciTech Connect

This Removal Action System Design has been prepared as a Phase I Volume for the implementation of the Phase II removal action at Wright-Patterson Air Force Base (WPAFB) near Dayton, Ohio. The objective of the removal action is to prevent, to the extent practicable, the migration of ground water contaminated with chlorinated volatile organic compounds (VOCS) across the southwest boundary of Area C. The Phase 1, Volume 9 Removal Action System Design compiles the design documents prepared for the Phase II Removal Action. These documents, which are presented in Appendices to Volume 9, include: Process Design, which presents the 30 percent design for the ground water treatment system (GWTS); Design Packages 1 and 2 for Earthwork and Road Construction, and the Discharge Pipeline, respectively; no drawings are included in the appendix; Design Package 3 for installation of the Ground Water Extraction Well(s); Design Package 4 for installation of the Monitoring Well Instrumentation; and Design Package 5 for installation of the Ground Water Treatment System; this Design Package is incorporated by reference because of its size.

Not Available

1992-04-01T23:59:59.000Z

44

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers  

E-Print Network (OSTI)

Should Data Center Owners be Afraid of Air-side Economizerdata center contamination, gaseous contamination, air-side economizer,

Coles, Henry C.

2012-01-01T23:59:59.000Z

45

[Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio]. Volume 3, Sampling and analysis plan (SAP): Phase 1, Task 4, Field Investigation: Draft  

SciTech Connect

In April 1990, Wright-Patterson Air Force Base (WPAFB), initiated an investigation to evaluate a potential Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) removal action to prevent, to the extent practicable, the offsite migration of contaminated ground water from WPAFB. WPAFB retained the services of the Environmental Management Operations (EMO) and its principle subcontractor, International Technology Corporation (IT) to complete Phase 1 of the environmental investigation of ground-water contamination at WPAFB. Phase 1 of the investigation involves the short-term evaluation and potential design for a program to remove ground-water contamination that appears to be migrating across the western boundary of Area C, and across the northern boundary of Area B along Springfield Pike. Primarily, Task 4 of Phase 1 focuses on collection of information at the Area C and Springfield Pike boundaries of WPAFB. This Sampling and Analysis Plan (SAP) has been prepared to assist in completion of the Task 4 field investigation and is comprised of the Quality Assurance Project Plan (QAPP) and the Field Sampling Plan (FSP).

Not Available

1991-10-01T23:59:59.000Z

46

A Prototype Radon Filter for Air A typical, recurring problem in low-background physics is the contamination of sensitive  

E-Print Network (OSTI)

is the contamination of sensitive surfaces of experimental apparata with the radioactive decay products of 222Rn . What since all its daughters are short-lived and decay away in a few days (see the 232Th radioactive chain.1: The 232Th natural radioactive chain. Diffusion of thoron (220Rn) and plate out of its daughters doesn

47

NREL: Hydrogen and Fuel Cells Research - Contaminants  

NLE Websites -- All DOE Office Websites (Extended Search)

to contaminants. At NREL, we are researching system-derived contaminants and hydrogen fuel quality. Air contaminants are of interest as well. NREL also participates in the U.S....

48

Ambient Air Quality Standards (Iowa)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations set statewide ambient air quality standards for various contaminants. The state code follows the regulations set forth in the National Primary and Secondary Ambient Air Quality...

49

Air gasification of dried sewage sludge in a two-stage gasifier: Part 1. The effects and reusability of additives on the removal of tar and hydrogen production  

Science Journals Connector (OSTI)

Air gasification of dried sewage sludge was conducted in a two-stage gasifier. In the experiments, natural occurring materials, such as natural zeolite, olivine and dolomite, as well as biomass-based and coal-based activated carbons, were applied to the upper reactor of a two-stage gasifier, while sand and calcined dolomite were used as the fluidized bed material in the lower reactor. The reusability of the spent coal-based activated carbon and spent calcined dolomite was also investigated. The combination of calcined dolomite as the bed material and coal-based activated carbon in the upper reactor produced the highest H2 (28 vol.%) and CO (21 vol.%) contents. Furthermore, total amount of tar generated with the combination was 91% less than that generated with no additive in the upper reactor and sand in the lower reactor. The H2 content and tar removal efficiencies in the experiments with the spent activated carbons and spent calcined dolomites were shown to be better than those without additives in the upper reactor.

Tae-Young Mun; Jin-Won Kim; Joo-Sik Kim

2013-01-01T23:59:59.000Z

50

The effect of palladium additions on the solidus/liquidus temperatures and wetting properties of Ag-CuO based air brazes  

SciTech Connect

A new ceramic brazing technique referred to as reactive air brazing (RAB) has recently been developed for potential applications in high temperature devices such as gas concentrators, solid oxide fuel cells, gas turbines, and combustion engines. At present, the technique utilizing a silver-copper oxide system is of great interest. The maximum operating temperature of this system is limited by its eutectic temperature of ~945°C, although in practice the operating temperature will need to be lower. An obvious strategy that can be employed to increase the maximum operating temperature of the braze material is to add a higher melting noble alloying element. In this paper, we report the effects of palladium addition on the melting characteristics of the Ag-CuO system and on the wetting properties of the resulting braze with respect to alumina. It was found that the addition of Pd will cause an increase in the melting temperature of the Ag-CuO braze but possibly at a sacrifice of wetting properties depending on composition.

Darsell, Jens T.; Weil, K. Scott

2007-01-01T23:59:59.000Z

51

Bioremediation of contaminated groundwater  

DOE Patents (OSTI)

An apparatus and method for in situ remediation of contaminated subsurface soil or groundwater contaminated by chlorinated hydrocarbons. A nutrient fluid is selected to stimulate the growth and reproduction of indigenous subsurface microorganisms that are capable of degrading the contaminants; an oxygenated fluid is selected to create a generally aerobic environment for these microorganisms to degrade the contaminants, leaving only pockets that are anaerobic. The nutrient fluid is injected periodically while the oxygenated fluid is injected continuously and both are extracted so that both are drawn across the plume. The nutrient fluid stimulates microbial colony growth; withholding it periodicially forces the larger, healthy colony of microbes to degrade the contaminants. Treatment is continued until the subsurface concentration of contaminants is reduced to an acceptable, preselected level. The nutrient fluid can be methane and the oxygenated fluid air for stimulating production of methanotrophs to break down chlorohydrocarbons, especially trichloroethylene (TCE) and tetrachloroethylene.

Hazen, Terry C. (Augusta, GA); Fliermans, Carl B. (Augusta, GA)

1995-01-01T23:59:59.000Z

52

Modeling for Airborne Contamination  

SciTech Connect

The objective of Modeling for Airborne Contamination (referred to from now on as ''this report'') is to provide a documented methodology, along with supporting information, for estimating the release, transport, and assessment of dose to workers from airborne radioactive contaminants within the Monitored Geologic Repository (MGR) subsurface during the pre-closure period. Specifically, this report provides engineers and scientists with methodologies for estimating how concentrations of contaminants might be distributed in the air and on the drift surfaces if released from waste packages inside the repository. This report also provides dose conversion factors for inhalation, air submersion, and ground exposure pathways used to derive doses to potentially exposed subsurface workers. The scope of this report is limited to radiological contaminants (particulate, volatile and gaseous) resulting from waste package leaks (if any) and surface contamination and their transport processes. Neutron activation of air, dust in the air and the rock walls of the drift during the preclosure time is not considered within the scope of this report. Any neutrons causing such activation are not themselves considered to be ''contaminants'' released from the waste package. This report: (1) Documents mathematical models and model parameters for evaluating airborne contaminant transport within the MGR subsurface; and (2) Provides tables of dose conversion factors for inhalation, air submersion, and ground exposure pathways for important radionuclides. The dose conversion factors for air submersion and ground exposure pathways are further limited to drift diameters of 7.62 m and 5.5 m, corresponding to the main and emplacement drifts, respectively. If the final repository design significantly deviates from these drift dimensions, the results in this report may require revision. The dose conversion factors are further derived by using concrete of sufficient thickness to simulate the drift walls. The gamma-ray scattering properties of concrete are sufficiently similar to those of the host rock and proposed insert material; use of concrete will have no significant impact on the conclusions. The information in this report is presented primarily for use in performing pre-closure radiological safety evaluations of radiological contaminants, but it may also be used to develop strategies for contaminant leak detection and monitoring in the MGR. Included in this report are the methods for determining the source terms and release fractions, and mathematical models and model parameters for contaminant transport and distribution within the repository. Various particle behavior mechanisms that affect the transport of contaminant are included. These particle behavior mechanisms include diffusion, settling, resuspension, agglomeration and other deposition mechanisms.

F.R. Faillace; Y. Yuan

2000-08-31T23:59:59.000Z

53

Bioremediation of contaminated groundwater  

DOE Patents (OSTI)

Disclosed is an apparatus and method for in situ remediation of contaminated subsurface soil or groundwater contaminated by chlorinated hydrocarbons. A nutrient fluid (NF) is selected to simulated the growth and reproduction of indigenous subsurface microorganisms capable of degrading the contaminants; an oxygenated fluid (OF) is selected to create an aerobic environment with anaerobic pockets. NF is injected periodically while OF is injected continuously and both are extracted so that both are drawn across the plume. NF stimulates microbial colony growth; withholding it periodically forces the larger, healthy colony of microbes to degrade the contaminants. Treatment is continued until the subsurface concentration of contaminants is acceptable. NF can be methane and OF be air, for stimulating production of methanotrophs to break down chlorohydrocarbons, especially TCE and tetrachloroethylene.

Hazen, T.C.; Fliermans, C.B.

1994-01-01T23:59:59.000Z

54

Contaminant Sources  

Science Journals Connector (OSTI)

Contaminant sources include almost every component in the manufacturing process: people, materials, processing equipment, and manufacturing environments. People can generate contaminating particles, gases, conden...

Alvin Lieberman

1992-01-01T23:59:59.000Z

55

Data Center Economizer Contamination and Humidity Study  

E-Print Network (OSTI)

Program Data Center Economizer Contamination and Humiditylevels for computers. Air economizer cycles, which bring insites to determine how economizers affect humidity control.

Shehabi, Arman

2010-01-01T23:59:59.000Z

56

Particulate Contaminant Descriptions and Definitions  

Science Journals Connector (OSTI)

Particulate contaminants can be either solid or liquid. Many of these materials were originally suspended in air or in a process fluid; others derive from nearby sources, such as activities of personnel working i...

Alvin Lieberman

1992-01-01T23:59:59.000Z

57

In situ bioremediation of petrol contaminated groundwater  

E-Print Network (OSTI)

) Bacterial Diversity and Aerobic Biodegradation Potential in a BTEX-Contaminated Aquifer Water Air Soil21/11/08 1 In situ bioremediation of petrol contaminated groundwater Guido Miguel Delgadillo EVS and facts · Likelihood of contamination · Benefits of in situ bioremediation So... Ask not what groundwater

Blouin-Demers, Gabriel

58

Impacts of Mixing on Acceptable Indoor Air Quality in Homes  

NLE Websites -- All DOE Office Websites (Extended Search)

Impacts of Mixing on Acceptable Indoor Air Quality in Homes Impacts of Mixing on Acceptable Indoor Air Quality in Homes Title Impacts of Mixing on Acceptable Indoor Air Quality in Homes Publication Type Journal Article LBNL Report Number LBNL-3048E Year of Publication 2010 Authors Sherman, Max H., and Iain S. Walker Journal HVAC & Research Journal Keywords air distribution, indoor air quality, mechanical ventilation, mixing, other, resave, residential ventilation, ventilation effectiveness Abstract Ventilation reduces occupant exposure to indoor contaminants by diluting or removing them. In a multi-zone environment such as a house, every zone will have different dilution rates and contaminant source strengths. The total ventilation rate is the most important factor in determining occupant exposure to given contaminant sources, but the zone-specific distribution of exhaust and supply air and the mixing of ventilation air can play significant roles. Different types of ventilation systems will provide different amounts of mixing depending on several factors such as air leakage, air distribution system, and contaminant source and occupant locations. Most U.S. and Canadian homes have central heating, ventilation, and air conditioning systems, which tend to mix the air; thus, the indoor air in different zones tends to be well mixed for significant fractions of the year. This article reports recent results of investigations to determine the impact of air mixing on exposures of residential occupants to prototypical contaminants of concern. We summarize existing literature and extend past analyses to determine the parameters than affect air mixing as well as the impacts of mixing on occupant exposure, and to draw conclusions that are relevant for standards development and for practitioners designing and installing home ventilation systems. The primary conclusion is that mixing will not substantially affect the mean indoor air quality across a broad population of occupants, homes, and ventilation systems, but it can reduce the number of occupants who are exposed to extreme pollutant levels. If the policy objective is to minimize the number of people exposed above a given pollutant threshold, some amount of mixing will be of net benefit even though it does not benefit average exposure. If the policy is to minimize exposure on average, then mixing air in homes is detrimental and should not be encouraged. We also conclude that most homes in the US have adequate mixing already, but that new, high-performance homes may require additional mixing. Also our results suggest that some differentiation should be made in policies and standards for systems that provide continuous exhaust, thereby reducing relative dose for occupants overall

59

Occurrence of Livestock-Associated Methicillin-Resistant Staphylococcus aureus in Turkey and Broiler Barns and Contamination of Air and Soil Surfaces in Their Vicinity  

Science Journals Connector (OSTI)

...rainy or windy conditions (wind speed of 5 m/s), no air...in rural areas, contact of wildlife with the sampled ground surfaces...bacteria are carried by the wind and sediment on the ground...thus-far-unknown time. Changing wind directions over time are one...

A. Friese; J. Schulz; K. Zimmermann; B.-A. Tenhagen; A. Fetsch; J. Hartung; U. Rösler

2013-02-15T23:59:59.000Z

60

Air Leakage and Air Transfer Between Garage and Living Space  

SciTech Connect

This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

Rudd, A.

2014-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

E-Print Network 3.0 - air toxic regulations Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

AQPM air quality program manager ARP accidental release prevention ATCM air toxic control... -volatile organic compound TAC toxic air contaminant TCA trichloroethane TCE...

62

Urban Air Quality Management: Detecting and Improving Indoor Ambient Air Quality  

Science Journals Connector (OSTI)

Current air pollution management and air quality control are primarily focused on outdoor and ... which act as public spaces, contaminated indoor air could be public health hazards. In Singapore ... spend a subst...

T. L. Tan; Gissella B. Lebron

2011-01-01T23:59:59.000Z

63

Energy Crossroads: Ventilation, Infiltration & Indoor Air Quality |  

NLE Websites -- All DOE Office Websites (Extended Search)

Ventilation, Infiltration & Indoor Air Quality Ventilation, Infiltration & Indoor Air Quality Suggest a Listing Air Infiltration and Ventilation Centre (AIVC) The AIVC fulfills its objectives by providing a range of services and facilities which include: Information, Technical Analysis, Technical Interchange, and Coordination. American Conference of Governmental Industrial Hygienists (ACGIH) The ACGIH offers high quality technical publications and learning opportunities. Americlean Services Corp. (ASC) ASC is a certified SBA 8(a) engineering/consulting firm specializing in HVAC contamination detection, abatement, and monitoring. In addition to highly professional ductwork cleaning and HVAC cleaning services, ASC offers a wide range of other engineering/ consulting/ management services

64

Air stable Al2O3-coated Li2NiO2 cathode additive as a surplus current consumer in a Li-ion cell  

E-Print Network (OSTI)

cathode additive is prepared by coating with Al iso-propoxide on Li2NiO2, obtained from firing exothermic reaction with an electrolyte during the overcharging process, which may result in a short-circuiting of the cell.5­9 A combination of the temperature increase and the internal short circuit of the cell

Cho, Jaephil

65

Subsurface contaminants focus area  

SciTech Connect

The US Department of Enregy (DOE) Subsurface Contaminants Focus Area is developing technologies to address environmental problems associated with hazardous and radioactive contaminants in soil and groundwater that exist throughout the DOE complex, including radionuclides, heavy metals; and dense non-aqueous phase liquids (DNAPLs). More than 5,700 known DOE groundwater plumes have contaminated over 600 billion gallons of water and 200 million cubic meters of soil. Migration of these plumes threatens local and regional water sources, and in some cases has already adversely impacted off-site rsources. In addition, the Subsurface Contaminants Focus Area is responsible for supplying technologies for the remediation of numerous landfills at DOE facilities. These landfills are estimated to contain over 3 million cubic meters of radioactive and hazardous buried Technology developed within this specialty area will provide efective methods to contain contaminant plumes and new or alternative technologies for development of in situ technologies to minimize waste disposal costs and potential worker exposure by treating plumes in place. While addressing contaminant plumes emanating from DOE landfills, the Subsurface Contaminants Focus Area is also working to develop new or alternative technologies for the in situ stabilization, and nonintrusive characterization of these disposal sites.

NONE

1996-08-01T23:59:59.000Z

66

Task 2.0 - Air Quality Assessment, Control, and Analytical Methods Subtask 2.11 - Lactic Acid FGD Additives From Sugar Beet Wastewater  

SciTech Connect

Organic buffers maintain the pH of the scrubber slurry in flue gas desulfurization (FGD) as the SO2 dissolves at the air-liquid interface. Inexpensive acids with an appropriate pKa are required for this application. The pKa of lactic acid (3.86) is between that of the interface and the recirculating slurry and will make soluble calcium ion available in large amounts. Currently lactic acid is somewhat expensive for this use, but this project will develop a new source of inexpensive lactate. Microbial action during the storage and processing of sugar beets forms lactic acid in concentrations as high 14 g/L in the processing water. The concentrations are lower than those occurring in conventional fermentation production of lactic acids, but since a considerable amount of water is involved in the processing of sugar beets in the Red River Valley (1 million gallons/day), a substantial amount of lactic acid or calcium lactate could be recovered as a by- product for use in FGD and other applications.

Edwin S. Olson

1998-02-01T23:59:59.000Z

67

Adsorption and desorption of contaminants  

SciTech Connect

The microbial remediation of sites Contaminated with organics is well documented, however, there are some significant problems that remain to be solved in the areas of contaminants sorbed to soils and non-aqueous phase liquid (NAPL) contamination. Methods of in situ bioremediation techniques employ either the stimulation of indigenous populations by nutrient addition, or the addition of prepared bacterial cultures to the subsurface environment. Problems of contaminant sorption and NAPL`s are related in that both encompass reduced contaminant bioavailability. Non-aqueous phase liquids have been identified as a priority area for research in the In situ Program due to their presence at DOE sites and the lack of adequate technology to effectively treat this contamination. Bioremediation technologies developed as a result of this project are easily transferred to industry.

Palumbo, A.V.; Strong-Gunderson, J.M. [Oak Ridge National Lab., TN (United States); DeFlaun, M.; Ensley, B. [Envirogen, Inc., Lawrenceville, NJ (United States)

1994-02-01T23:59:59.000Z

68

Air gasification of railroad wood ties treated with creosote: Effects of additives and their combination on the removal of tar in a two-stage gasifier  

Science Journals Connector (OSTI)

Gasification experiments with railroad wood ties treated with creosote were conducted in a two-stage gasifier to produce a high caloric producer gas with low tar content. In the experiments, sand and dolomite as the bed material were compared, and the effects of temperature in a range from 666 to 818 °C and equivalence ratio from 0.19 to 0.52 were also investigated. Additionally, the effectiveness of additives (biomass-based activated carbon, coal-based activated carbon and dolomite) and their combination on the removal of tar were examined. As a result, the combination of dolomite as the bed material and coal-based activated carbon in the tar cracking zone gave the best performance with respect to tar removal. With this combination, the total amount of tar was reduced by 91.9%, compared to that obtained by using only sand as the bed material in the gasifier. Furthermore, the tar content in the producer gas was below 0.1 g/N m3. Coal-based activated carbon also improved the production of hydrogen up to about 29 vol.%. The \\{LHVs\\} of most producer gases in these experiments were above 7 MJ/N m3.

Tae-Young Mun; Jin-Won Kim; Joo-Sik Kim

2012-01-01T23:59:59.000Z

69

Understanding Contamination; Twenty Years of Simulating Radiological Contamination  

SciTech Connect

A wide variety of simulated contamination methods have been developed by researchers to reproducibly test radiological decontamination methods. Some twenty years ago a method of non-radioactive contamination simulation was proposed at the Idaho National Laboratory (INL) that mimicked the character of radioactive cesium and zirconium contamination on stainless steel. It involved baking the contamination into the surface of the stainless steel in order to 'fix' it into a tenacious, tightly bound oxide layer. This type of contamination was particularly applicable to nuclear processing facilities (and nuclear reactors) where oxide growth and exchange of radioactive materials within the oxide layer became the predominant model for material/contaminant interaction. Additional simulation methods and their empirically derived basis (from a nuclear fuel reprocessing facility) are discussed. In the last ten years the INL, working with the Defense Advanced Research Projects Agency (DARPA) and the National Homeland Security Research Center (NHSRC), has continued to develop contamination simulation methodologies. The most notable of these newer methodologies was developed to compare the efficacy of different decontamination technologies against radiological dispersal device (RDD, 'dirty bomb') type of contamination. There are many different scenarios for how RDD contamination may be spread, but the most commonly used one at the INL involves the dispersal of an aqueous solution containing radioactive Cs-137. This method was chosen during the DARPA projects and has continued through the NHSRC series of decontamination trials and also gives a tenacious 'fixed' contamination. Much has been learned about the interaction of cesium contamination with building materials, particularly concrete, throughout these tests. The effects of porosity, cation-exchange capacity of the material and the amount of dirt and debris on the surface are very important factors. The interaction of the contaminant/substrate with the particular decontamination technology is also very important. Results of decontamination testing from hundreds of contaminated coupons have lead to certain conclusions about the contamination and the type of decontamination methods being deployed. A recent addition to the DARPA initiated methodology simulates the deposition of nuclear fallout. This contamination differs from previous tests in that it has been developed and validated purely to simulate a 'loose' type of contamination. This may represent the first time that a radiologically contaminated 'fallout' stimulant has been developed to reproducibly test decontamination methods. While no contaminant/methodology may serve as a complete example of all aspects that could be seen in the field, the study of this family of simulation methods provides insight into the nature of radiological contamination.

Emily Snyder; John Drake; Ryan James

2012-02-01T23:59:59.000Z

70

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers  

SciTech Connect

There is a concern that environmental-contamination caused corrosion may negatively affect Information Technology (IT) equipment reliability. Nineteen data centers in the United States and two in India were evaluated using Corrosion Classification Coupons (CCC) to assess environmental air quality as it may relate IT equipment reliability. The data centers were of two basic types: closed and outside-air cooled. A closed data center provides cool air to the IT equipment using air conditioning in which only a small percent age of the recirculation air is make-up air continuously supplied from outside to meet human health requirements. An outside-air cooled data center uses outside air directly as the primary source for IT equipment cooling. Corrosion measuring coupons containing copper and silver metal strips were placed in both closed and outside-air cooled data centers. The coupons were placed at each data center (closed and outside-air cooled types) with the location categorized into three groups: (1) Outside - coupons sheltered, located near or at the supply air inlet, but located before any filtering, (2) Supply - starting just after initial air filtering continuing inside the plenums and ducts feeding the data center rooms, and (3) Inside located inside the data center rooms near the IT equipment. Each coupon was exposed for thirty days and then sent to a laboratory for a corrosion rate measurement analysis. The goal of this research was to investigate whether gaseous contamination is a concern for U.S. data center operators as it relates to the reliability of IT equipment. More specifically, should there be an increased concern if outside air for IT equipment cooling is used To begin to answer this question limited exploratory measurements of corrosion rates in operating data centers in various locations were undertaken. This study sought to answer the following questions: (1) What is the precision of the measurements (2) What are the approximate statistical distributions of copper and silver corrosion rates in the sampled data centers(3) To what extent are copper and silver corrosion measurements related (4) What is the relationship of corrosion rate measurements between outside-air cooled data centers compared to closed data centers (5) How do corrosivity measurements relate to IT equipment failure rates The data from our limited sample size suggests that most United States data center operators should not be concerned with environmental gaseous contamination causing high IT equipment failure rates even when using outside-air cooling. The research team recommends additional basic research on how environmental conditions, specifically gaseous contamination, affect electronic equipment reliability.

Coles, Henry C.; Han, Taewon; Price, Phillip N.; Gadgil, Ashok J.; Tschudi, William F.

2011-07-17T23:59:59.000Z

71

Additional Reading  

NLE Websites -- All DOE Office Websites (Extended Search)

Reading Reading Cravotta, C. A. III and G. R. Watzlaf. 2002. Design and Performance of Limestone Drains to Increase pH and Remove Metals from Acidic Mine Drainage. Chapter 2, In Handbook of Groundwater Remediation Using Permeable Reactive Barriers. Elsevier Science (USA). Sams, J. I. III, Schroeder, K. T., Ackman, T. E., Crawford, J. K. and K. L. Otto 2001. Water-quality conditions during low flow in the Lower Youghiogheny River Basin, Pennsylvania, Oct 5-7, 1998. U.S. Geological Survey Water Resources Investigations Report 01-4189, 32p. Hammack, R. W., Veloski, G. A., Sams, J. I. III and J. S. Mabie. 2002. The use of airborne EM conductivity to locate contaminant flow paths at the Sulfur Bank Mercury Superfund Site. In Proceedings of the Symposium for Application of Geophysics to

72

A study of air flow through saturated porous media and its applications to in-situ air sparging  

E-Print Network (OSTI)

The efficiency of an in situ air sparging system is controlled by the extent of contact between injected air and contaminated soil and pore fluid. Characterizing the mechanisms governing air propagation through saturated ...

Marulanda, Catalina, 1971-

2001-01-01T23:59:59.000Z

73

Kansas Air Quality Regulations (Kansas)  

Energy.gov (U.S. Department of Energy (DOE))

All new air contaminant emission sources or alterations to emission sources that are required to be reported shall be in compliance with all applicable emission control regulations at the time that...

74

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) Air Pollution Control Regulations: No. 22 - Air Toxics (Rhode Island) < Back Eligibility Commercial Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Program Info State Rhode Island Program Type Siting and Permitting Provider Department of Environmental Management Permits are required to construct, install, or modify any stationary source which has the potential to increase emissions of a listed toxic air contaminant by an amount greater than the minimum quantity for that contaminant. Minimum quantities are specified in Table III of these regulations. Permits will be granted based in part on the impact of the projected emissions of the stationary source on acceptable ambient levels

75

Phosphazene additives  

DOE Patents (OSTI)

An additive comprising a phosphazene compound that has at least two reactive functional groups and at least one capping functional group bonded to phosphorus atoms of the phosphazene compound. One of the at least two reactive functional groups is configured to react with cellulose and the other of the at least two reactive functional groups is configured to react with a resin, such as an amine resin of a polycarboxylic acid resin. The at least one capping functional group is selected from the group consisting of a short chain ether group, an alkoxy group, or an aryloxy group. Also disclosed are an additive-resin admixture, a method of treating a wood product, and a wood product.

Harrup, Mason K; Rollins, Harry W

2013-11-26T23:59:59.000Z

76

Two-stage air gasification of mixed plastic waste: Olivine as the bed material and effects of various additives and a nickel-plated distributor on the tar removal  

Science Journals Connector (OSTI)

Abstract Air gasification of mixed plastic waste was conducted in a two-stage gasifier. The effects of the combination of olivine as the fluidized bed material and activated carbon with or without other additives for tar cracking, as well as a Ni-plated distributor, the use of steam as a gasifying agent, and the calcination of olivine on the producer gas compositions and tar production, were also investigated. The maximum H2 concentration (27.3 vol%) was obtained with 900 g of activated carbon in the tar-cracking zone, and through the use of calcined olivine as the bed material. In the experiments, the maximum tar removal efficiency calculated using a base case reached 98.2%. The \\{LHVs\\} of the producer gases were in the range of 6.1–9.0 MJ/Nm3. The increase in the activated carbon amount led to an enhanced H2 production, as well as a decrease in tar production. The Ni-plated distributor was found to be effective for tar removal. In the application of dolomite in the tar-cracking zone and the use of steam as a fluidizing medium resulted in a high rate of \\{HCl\\} removal. The minimum \\{HCl\\} concentration in the producer gases was under 1 ppm.

Min-Hwan Cho; Tae-Young Mun; Young-Kon Choi; Joo-Sik Kim

2014-01-01T23:59:59.000Z

77

Air Conditioning  

Science Journals Connector (OSTI)

Air Conditioning ... CHEMISTS and engineers use air conditioning as a valuable tool in more than two hundred industries. ... Air conditioning is a tool with many facets. ...

MARGARET INGELS

1938-02-10T23:59:59.000Z

78

Removal of phenanthrene from soil by additive-enhanced electrokinetics  

Science Journals Connector (OSTI)

Removal of hydrophobic organic contaminants (HOCs) using an additive-enhanced electrokinetic method was studied in a ... (EK) column experiments were performed using these additives. When no additive was used, a

Ji-Yeon Park; Yan Chen; Jian Chen; Ji-Won Yang

2002-03-01T23:59:59.000Z

79

Contaminant-Generation Mechanisms  

Science Journals Connector (OSTI)

In the last chapter, the areas where contaminants are generated were discussed. Knowing the location of contaminant generation is helpful in controlling that contamination, but understanding the mechanisms is ...

Alvin Lieberman

1992-01-01T23:59:59.000Z

80

Industrial HVAC Air-to-Air Energy Recovery Retrofit Economics  

E-Print Network (OSTI)

Retrofitting air-to-air energy recovery equipment is relatively simply to design and easy to install. Additionally, HVAC energy recovery is almost risk free when compared to process retrofit. Life cycle cost analysis is the best way to illustrate...

Graham, E. L.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Assessing inhalation exposure from airborne soil contaminants  

SciTech Connect

A method of estimation of inhalation exposure to airborne soil contaminants is presented. this method is derived from studies of airborne soil particles with radioactive tags. The concentration of contaminants in air (g/m{sup 3}) can be derived from the product of M, the suspended respirable dust mass concentration (g/m{sup 3}), S, the concentration of contaminant in the soil (g/g), and E{sub f}, an enhancement factor. Typical measurement methods and values of M, and E{sub f} are given along with highlights of experiences with this method.

Shinn, J.H.

1998-04-01T23:59:59.000Z

82

Building Efficiency and Indoor Air Quality - You Can Have Both  

E-Print Network (OSTI)

with added or special filtration. This allows more air to be recirculated but has specific limitations. Filters can remove large particulates and some chemical contaminants by changing the filter media. However, a minimum amount of fresh air, approximately 20...

Kettler, G. J.

1998-01-01T23:59:59.000Z

83

How to Extract Energy from Dirty Interior Air  

E-Print Network (OSTI)

Industry is often faced with the problem of reducing the level of contaminated air in its plants. The common method used is to exhaust the dirty air and replace it with outside air. This requires heating or cooling of the replacement air. Two basic...

Cheney, W. A.

1982-01-01T23:59:59.000Z

84

Understanding the Basics of Compressed Air Systems  

E-Print Network (OSTI)

, contaminated filters, conversion to electrically operated hoists, and the use of centrifugal fans or compressed air with pressure regulators to purge control cabinets. Finally, a review of compressor technologies with typical cfm, pressure ranges, and price...

Herron, D. J.

85

Compressed Air  

NLE Websites -- All DOE Office Websites (Extended Search)

BPA Utility Reimbursement Programs for Compressed Air Projects Customer Proposal Template Measurement & Verification Plan for Compressed Air CA 2006-15 A template for utilities to...

86

Impacts of Ethanol in Gasoline on Subsurface Contamination.  

E-Print Network (OSTI)

??The increasing use of ethanol as a gasoline additive has raised concerns over the potential impacts ethanol might have on groundwater contamination. In North America,… (more)

Freitas, Juliana Gardenalli de

2009-01-01T23:59:59.000Z

87

Water contamination and colloidal stability of motor oils  

Science Journals Connector (OSTI)

Water contamination of motor oils during storage and use in low- ... of additives worsens the performance properties of the motor oils.

S. V. Korneev; V. M. Dudkin; A. V. Kolunin

2006-07-01T23:59:59.000Z

88

Air Pollution Control (Oklahoma) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air Pollution Control (Oklahoma) Air Pollution Control (Oklahoma) Air Pollution Control (Oklahoma) < Back Eligibility Agricultural Fuel Distributor Industrial Investor-Owned Utility Local Government Municipal/Public Utility Rural Electric Cooperative State/Provincial Govt Systems Integrator Tribal Government Utility Savings Category Buying & Making Electricity Program Info State Oklahoma Program Type Environmental Regulations Provider Environmental Quality This chapter enumerates primary and secondary ambient air quality standards and the significant deterioration increments. Significant deterioration refers to an increase in ambient air pollution above a baseline plus a specific increment allowed for one of three classes of areas. It is required for potential sources of air contaminants to register with the

89

Surfactant screening of diesel-contaminated soil  

SciTech Connect

At one installation, approximately 60,000 gal of No. 2 diesel fuel leaked into the subsurface environment, with contamination at depths of 6 to 34 m below the surface. Argonne National Laboratory was contracted to perform treatability studies for site remediation. The treatability studies focused on four separate phases: (1) leachability studies on the various contaminated soil borings, (2) air stripping studies, (3) bioremediation studies, and (4) surfactant screening/surfactant flooding studies. This paper summarizes the fourth phase of the research program in which twenty-one surfactants were screened for possible use to mobilize the organics from the contaminated soil prior to bioremediation. Anionic surfactants resulted in the greatest degree of diesel mobilization. The most promising surfactants will be employed on actual contaminated soil samples obtained from the site. 18 refs., 16 figs., 1 tab.

Peters, R.W.; Montemagno, C.D.; Shem, L. (Argonne National Lab., IL (USA)); Lewis, B.A. (Northwestern Univ., Evanston, IL (USA). Dept. of Civil Engineering)

1990-01-01T23:59:59.000Z

90

air_water.cdr  

Office of Legacy Management (LM)

12/2011 12/2011 Air Monitoring Groundwater Monitoring Surface Water Monitoring A continuously operating air monitoring network was in place from 1986 through 2000 for the Weldon Spring Site Remedial Action Project (WSSRAP) to measure levels of gamma radiation, radioactive dust particles, radon gas, and asbestos. With remediation of contaminated materials essentially complete and measurements indistinguishable from background, the U.S. Department of Energy (DOE) ceased perimeter and offsite air monitoring as of December 31, 2000. Groundwater has been routinely monitored at the site since 1986. Separate groundwater monitoring programs were established for the Chemical Plant and Quarry sites because of geographic separation and differences in the hydrogeologic features that influence

91

Building America Case Study: Air Leakage and Air Transfer Between Garage and Living Space, Waldorf, Maryland (Fact Sheet)  

SciTech Connect

This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

Not Available

2014-11-01T23:59:59.000Z

92

Recirculation of Factory Heat and Air to Reduce Energy Consumption  

E-Print Network (OSTI)

-makeup ventilation systems. First we must distinguish between gaseous and particulate contaminants in order to select appropriate types of air cleaning equipment. Next the physical (and chemical) char acteristics of those specific contaminants must be considered... particles. (Note that most gases and vapors are colorless and invisible ?...suspended particulates are almost the only visible air con taminants .) Because the chemical vapor pressure of the nuisance contaminants which create visibly polluted factory...

Thiel, G. R.

1983-01-01T23:59:59.000Z

93

Contamination Control Overview  

Science Journals Connector (OSTI)

Many high-technology products currently manufactured are affected adversely if contamination is deposited in or on the product during manufacture or use. Contamination can be defined as any condition, material, p...

Alvin Lieberman

1992-01-01T23:59:59.000Z

94

Fate of Contaminants in Contact with West Valley Grouts  

SciTech Connect

The objective of the work described here is to determine to what extent a variety of contaminants, including fission products, actinides, and RCRA elements are sequestered by the two grout formulations. The conceptual model for this study is as follows: a large mass of grout having been poured into a high-level waste tank is in the process of aging and weathering for thousands of years. The waste remaining in the tank will contain radionuclides and other contaminants, much of which will adhere to tank walls and internal structures. The grout will encapsulate the contaminants. Initially the grout will be well sequestered, but over time rainwater and groundwater will gain access to it. Ultimately, the grout/waste environment will be an open system. In this condition water will move through the grout, exposing it to O{sub 2} and CO{sub 2} from the air and HCO{sub 3}{sup -} from the groundwater. Thus we are considering an oxic environment containing HCO{sub 3}{sup -}. Initially the solubility of many contaminants, but not all, will be constrained by chemistry dominated by the grout, primarily by the high pH, around 11.8. This is controlled and buffered by the portland cement and blast furnace slag components of the grout, which by themselves maintain a solution pH of about 12.5. Slowly the pH will diminish as Ca(OH){sub 2} and KOH dissolve, are carried away by water, and CaCO{sub 3} forms. As these conditions develop, the behavior of these elements comes into question. In our conceptual model, although the grout is formulated to provide some reducing capacity, in order to be conservative this mechanism is not considered. In addition to solubility constraints imposed by pH, the various contaminants may be incorporated into a variety of solid phases. Some may be incorporated into newly forming compounds as the grout sets and cures. Others (like soddyite, (UO{sub 2}){sub 2}SiO{sub 4}(H{sub 2}O){sub 2}) are the result of slower reactions but may become important over time as contaminants are exposed to evolving chemistry in the grout. Still other solid phases may form from reactions between the waste and grout components, not only the cementitious materials, but also the additives used in the grout. Another process that may exert some control on contaminant concentrations is adsorption onto solids within the grout. These may be additives such as the fluorapatite or zeolite that are substantial percentages of the grouts or they may be minerals, typically Ca-Al-Si materials, that form in the grout system as cement sets. In addition, as the grout weathers over time, CaCO{sub 3} minerals, such as calcite and aragonite, will form as a rind on the grout and as a fracture filling mineral. Some contaminants are likely to be incorporated into these minerals, to a greater or lesser extent, as they precipitate. For some elements, such as U, there is a significant literature exploring the incorporation into CaCO{sub 3}, but for others there is essentially no information. This is also the case for much of the chemical regime of the grouts. Initial conditions are at pH values around 12 and information is often sparse.

Fuhrmann,M.; Gillow, J.

2009-07-01T23:59:59.000Z

95

The Source of Airborne Lead: Recycling Pb-Contaminated Soils  

NLE Websites -- All DOE Office Websites (Extended Search)

The Source of Airborne Lead: Recycling The Source of Airborne Lead: Recycling Pb-Contaminated Soils Starting in the 1970s, federal regulatory control and eventual elimination of lead-based "anti-knock" additives in gasoline decreased the level of airborne Pb in the USA by two orders-of-magnitude [1]. Blood lead levels of the USA figure 1 Figure 1. The good, the bad, and the ugly. Ambient airborne particulate matter captured on filters of woven silica fiber (large strips) and TeflonTM (round). Clean fiber filter at bottom for comparison. Take a deep breath? population decreased correspondingly [2,3]. Despite this dramatic improvement in both exposure risk and body burden of Pb, the sources and health threat of the low levels of lead in our "unleaded" air remain topics

96

Original article Contamination of pigs by nose-to-nose contact  

E-Print Network (OSTI)

Original article Contamination of pigs by nose-to-nose contact or airborne transmission 2001; accepted 21 June 2001) Abstract ­ The aim of this study is to assess the risk of contamination-inoculated "contact" pigs (n = 4), the third room had pigs (n = 8) receiving potentially contaminated air from

Boyer, Edmond

97

Air Quality  

NLE Websites -- All DOE Office Websites (Extended Search)

What We Monitor & Why » What We Monitor & Why » Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. April 12, 2012 Real-time data monitoring for particulate matter An air monitoring field team member tests one of LANL's tapered element oscillating microbalance samplers, which collects real-time particulate matter data. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email LANL monitors air quality 24 hours a day, 365 days a year. Why we monitor air LANL monitors many different pathways in order to assess their impact on workers, the public, animals, and plants. We monitor the air around the Laboratory to ensure our operations are not affecting the air of nearby

98

Process for removal of ammonia and acid gases from contaminated waters  

DOE Patents (OSTI)

Contaminating basic gases, i.e., ammonia and acid gases, e.g., carbon dioxide, are removed from process waters or waste waters in a combined extraction and stripping process. Ammonia in the form of ammonium ion is extracted by an immiscible organic phase comprising a liquid cation exchange component, especially an organic phosphoric acid derivative, and preferably di-2-ethyl hexyl phosphoric acid, dissolved in an alkyl hydrocarbon, aryl hydrocarbon, higher alcohol, oxygenated hydrocarbon, halogenated hydrocarbon, and mixtures thereof. Concurrently, the acidic gaseous contaminants are stripped from the process or waste waters by stripping with stream, air, nitrogen, or the like. The liquid cation exchange component has the ammonia stripped therefrom by heating, and the component may be recycled to extract additional amounts of ammonia.

King, C.J.; Mackenzie, P.D.

1982-09-03T23:59:59.000Z

99

Process for removal of ammonia and acid gases from contaminated waters  

DOE Patents (OSTI)

Contaminating basic gases, i.e., ammonia, and acid gases, e.g., carbon dioxide, are removed from process waters or waste waters in a combined extraction and stripping process. Ammonia in the form of ammonium ion is extracted by an immiscible organic phase comprising a liquid cation exchange component, especially an organic phosphoric acid derivative, and preferably di-2-ethyl hexyl phosphoric acid, dissolved in an alkyl hydrocarbon, aryl hydrocarbon, higher alcohol, oxygenated hydrocarbon, halogenated hydrocarbon, and mixtures thereof. Concurrently, the acidic gaseous contaminants are stripped from the process or waste waters by stripping with steam, air, nitrogen, or the like. The liquid cation exchange component has the ammonia stripped therefrom by heating, and the component may be recycled to extract additional amounts of ammonia.

King, C. Judson (Kensington, CA); MacKenzie, Patricia D. (Berkeley, CA)

1985-01-01T23:59:59.000Z

100

Pre-Feasibility Analysis of Pellet Manufacturing on the Former Loring Air Force Base Site. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites  

SciTech Connect

The U.S. Environmental Protection Agency (EPA) Office of Solid Waste and Emergency Response, in accordance with the RE-Powering America's Lands initiative, engaged the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to conduct feasibility studies to assess the viability of developing renewable energy generating facilities on contaminated sites. This site, in Limestone, Maine -- formerly the location of the Loring Air Force Base but now owned by the Aroostook Band of Micmac -- was selected for the potential to produce heating pellets from woody feedstock. Biomass was chosen as the renewable energy resource to evaluate based on abundant woody-biomass resources available in the area. NREL also evaluates potential savings from converting existing Micmac property from oil-fired heating to pellet heating.

Hunsberger, R.; Mosey, G.

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

In-situ remediation system and method for contaminated groundwater  

DOE Patents (OSTI)

A system for removing volatile contaminants from a subsurface plume of contamination comprising two sets of wells, a well for injecting a fluid into a saturated zone on one side of the plume and an extracting well for collecting the fluid together with volatilized contaminants from the plume on the other side of the plume. The fluid enables the volatile contaminants to be volatilized and carried therewith through the ground to the extracting well. Injecting and extracting wells are preferably horizontal wells positioned below the plume in the saturated zone and above the plume in the vadose zone, respectively. The fluid may be air or other gas or a gas and liquid mixture depending on the type of contaminant to be removed and may be preheated to facilitate volatilization. Treatment of the volatilized contamination may be by filtration, incineration, atmospheric dispersion or the like. 3 figs.

Corey, J.C.; Looney, B.B.; Kaback, D.S.

1989-05-23T23:59:59.000Z

102

Contamination analysis unit  

DOE Patents (OSTI)

The portable Contamination Analysis Unit (CAU) measures trace quantifies of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surface by measuring residual hazardous surface contamination, such as tritium and trace organics It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings.

Gregg, Hugh R. (Livermore, CA); Meltzer, Michael P. (Livermore, CA)

1996-01-01T23:59:59.000Z

103

Contamination analysis unit  

DOE Patents (OSTI)

The portable Contamination Analysis Unit (CAU) measures trace quantities of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surfaces by measuring residual hazardous surface contamination, such as tritium and trace organics. It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings. 1 fig.

Gregg, H.R.; Meltzer, M.P.

1996-05-28T23:59:59.000Z

104

Surface and Volume Contamination  

Energy.gov (U.S. Department of Energy (DOE))

Will there be volume contamination/activation guides as well as updated contamination guides? The only guidance being developed for volumetric contamination is a Technical Standard for accelerator facilities. However, a revised version of ANSI N13.12-1999 is expected in the future and it will be assessed to determine its acceptability for use as a pre-approved authorized limit. It is noted that ANSI N13.12-1999 is only applicable to personal property not structures.

105

IMPACT OF REDUCED INFILTRATION AND VENTILATION ON INDOOR AIR QUALITY IN RESIDENTIAL BUILDINGS  

E-Print Network (OSTI)

Critical Analysis of Nitrogen Dioxide Air Quality Standards.contaminants-. ;--- ---- nitrogen dioxide from gas stoves,buildings: nitrogen dioxide (N02), formaldehyde (HCHO), and

Hollowell, Craig D.

2011-01-01T23:59:59.000Z

106

Air Emission Regulations for the Prevention, Abatement, and Control of Air  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air Emission Regulations for the Prevention, Abatement, and Control Air Emission Regulations for the Prevention, Abatement, and Control of Air Contaminants (Mississippi) Air Emission Regulations for the Prevention, Abatement, and Control of Air Contaminants (Mississippi) < Back Eligibility Agricultural Commercial Construction Developer Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Program Info State Mississippi Program Type Environmental Regulations Siting and Permitting Provider Department of Environmental Quality The Air Emission Regulation for the Prevention, Abatement and Control of

107

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That  

NLE Websites -- All DOE Office Websites (Extended Search)

Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers Title Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers Publication Type Report LBNL Report Number LBNL-4951E Year of Publication 2011 Authors Coles, Henry C., Tae Won Han, Phillip N. Price, Ashok J. Gadgil, and William F. Tschudi Date Published 03/2011 Abstract There is a concern that environmental-contamination caused corrosion may negatively affect Information Technology (IT) equipment reliability. Nineteen data centers in the United States and two in India were evaluated using Corrosion Classification Coupons (CCC) to assess environmental air quality as it may relate IT equipment reliability. The data centers were of two basic types: "closed" and outside-air cooled. A closed data center provides cool air to the IT equipment using air conditioning in which only a small percentage of the recirculation air is "make-up" air continuously supplied from outside to meet human health requirements. An outside-air cooled data center uses outside air directly as the primary source for IT equipment cooling. Corrosion measuring coupons containing copper and silver metal strips were placed in both "closed" and outside-air cooled data centers. The coupons were placed at each data center (closed and outside-air cooled types) with the location categorized into three groups:

108

In-Situ Containment and Extraction of Volatile Soil Contaminants  

DOE Patents (OSTI)

The invention relates to a novel approach to containing and removing toxic waste from a subsurface environment. More specifically the present invention relates to a system for containing and removing volatile toxic chemicals from a subsurface environment using differences in surface and subsurface pressures. The present embodiment generally comprises a deep well, a horizontal tube, at least one injection well, at least one extraction well and a means for containing the waste within the waste zone (in-situ barrier). During operation the deep well air at the bottom of well (which is at a high pressure relative to the land surface as well as relative to the air in the contaminated soil) flows upward through the deep well (or deep well tube). This stream of deep well air is directed into the horizontal tube, down through the injection tube(s) (injection well(s)) and into the contaminate plume where it enhances volatization and/or removal of the contaminants.

Varvel, Mark Darrell

2005-12-27T23:59:59.000Z

109

Bioremediation of contaminated sediments  

SciTech Connect

Contaminants in bottom sediments have historically been considered to have minimal environmental impact because they are buried, sorbed or electrostatically bound to clay particles, or incorporated into humus. Physical and chemical conditions such as alkalinity, pH, and redox of the sediments also play a part in sequestering contaminants. As long as the sediments are undisturbed, the contaminants are considered stabilized and not an immediate environmental problem. Resuspension of bottom sediments makes contaminants more available for dispersal into the marine environment. Events that can cause resuspension include storm surges, construction activity, and dredging. During resuspension, sediment particles move from an anaerobic to aerobic environment, changing their redox characteristics, and allowing the indigenous aerobic bacteria to grow and utilize certain classes of contaminants as energy sources. The contaminants are also more available for use because the mixing energy imparted to the particles during resuspension enhances mass transfer, allowing contaminants to enter the aqueous phase more rapidly. The contaminants targeted in this research are polynuclear aromatic hydrocarbons (PAHs), a class of contaminant commonly found in bottom sediments near highly industrialized areas. PAH sources include fossil fuel combustion and petroleum spills. Previous research has shown that PAHs can be biodegraded. Size and structure, i.e., number and configuration of condensed rings, can affect compound disappearance. The focus of this research was to examine the relationship between resuspension and biodegradation of PAHs in lab scale slurry reactors. The rate and extent of contaminant release from the sediments into an uncontaminated water column was determined. Oxygen demand of initially anaerobic sediments were investigated. Then rate and extent of phenanthrene biodegradation was examined.

Hughes, J.B.; Jee, V.; Ward, C.H. [Rice Univ., Houston, TX (United States)

1995-10-01T23:59:59.000Z

110

Additive Manufacturing Technology Assessment  

Office of Environmental Management (EM)

subtractive manufacturing 41 methods 1. Additive manufacturing is also called as 3D printing, 42 additive fabrication, or freeform fabrication. These new 43 techniques, while...

111

Ventilation and Air Quality in Indoor Ice Skating Arenas Chunxin Yang, Ph.D.1  

E-Print Network (OSTI)

Ventilation and Air Quality in Indoor Ice Skating Arenas Chunxin Yang, Ph.D.1 Philip Demokritou, and the operation strategy of the ventilation system are significant contributing factors to the indoor air quality contamination levels in the arenas. Keywords: Air distribution, health, skating rink, indoor air quality, space

Chen, Qingyan "Yan"

112

Computer simulations and experimental measurements of air distributions in buildings: past, present, and future  

E-Print Network (OSTI)

1 Computer simulations and experimental measurements of air distributions in buildings: past, sustainable, and safe building, it is important to know the distributions of air velocity, air temperature, and liquid droplet contaminants. (hereafter referred as air distribution) in the building. Due to rapid

Chen, Qingyan "Yan"

113

Methods for Determination of Hydrocarbons in Air, Soil & Water  

Science Journals Connector (OSTI)

Many environmental investigations often demand a quick indication of the nature and levels of contamination in air, soil and water. A portable GC for on-site monitoring allows the user to fast screen compounds in...

Hans Ole Andersen

1997-01-01T23:59:59.000Z

114

Personnel and Contamination  

Science Journals Connector (OSTI)

Everyone concerned with contamination control dreams of the day when automation will remove the need for employees to actually handle the wafers. This wish arises from the fact that humans are such a major factor...

M. Kozicki; S. Hoenig; P. Robinson

1991-01-01T23:59:59.000Z

115

ENHANCEMENT OF ENVIRONMENTAL SAMPLING THROUGH AN IMPROVED AIR MONITORING TECHNIQUE  

SciTech Connect

Environmental sampling (ES) is a key component of International Atomic Energy Agency (IAEA) safeguarding approaches throughout the world. Performance of ES (e.g. air, water, vegetation, sediments, soil and biota) supports the IAEAs mission of drawing conclusions concerning the absence of undeclared nuclear material or nuclear activities in a State and has been available since the introduction of safeguards strengthening measures approved by the IAEA Board of Governors (1992-1997). A recent step-change improvement in the gathering and analysis of air samples at uranium/plutonium bulk handling facilities is an important addition to the international nuclear safeguards inspector's toolkit. Utilizing commonly used equipment throughout the IAEA network of analytical laboratories for particle analysis, researchers are developing the next generation of ES equipment for air grab and constant samples. Isotopic analysis of collected particles from an Aerosol Contaminant Extractor (ACE) silicon substrate has been performed with excellent results in determining attribute and isotopic composition of chemical elements present in an actual test-bed sample. The new collection equipment will allow IAEA nuclear safeguards inspectors to develop enhanced safeguarding approaches for complicated facilities. This paper will explore the use of air monitoring to establish a baseline environmental signature of a particular facility that could be used for comparison of consistencies in declared operations. The implementation of air monitoring will be contrasted against the use of smear ES when used during unannounced inspections, design information verification, limited frequency unannounced access, and complementary access visits at bulk handling facilities. Technical aspects of the air monitoring device and the analysis of its environmental samples will demonstrate the essential parameters required for successful application of the system.

Hanks, D.

2010-06-07T23:59:59.000Z

116

Additive Manufacturing Technologies  

Science Journals Connector (OSTI)

Rapid Prototyping is the construction of complex three-dimensional parts using additive manufacturing technology.

Jürgen Stampfl; Markus Hatzenbichler

2014-01-01T23:59:59.000Z

117

Air Pollution  

Science Journals Connector (OSTI)

Both natural processes and human activities contribute to air pollution, with the combustion of fossil fuels being the largest anthropogenic source of air pollutants. Adverse health effects (above all respiratory and cardiovascular complications), damage to crops, natural vegetation and materials, reduced visibility and changed radiation balance of the atmosphere are the major consequences of high concentrations of air pollutants. Technical fixes can sharply reduce emissions from large stationary sources and lower the rates of automotive emissions, but the rising number of vehicles and longer time spent on the road will call for more radical solutions to traffic-generated photochemical smog now present in all major urban areas.

V. Smil

2001-01-01T23:59:59.000Z

118

Bos > AIR  

E-Print Network (OSTI)

The advent of air travel has produced a building typology completely new to the 20th century. The outdated planning of regions for airports render most existing airports as isolated, autonomous instances in the urban ...

Lee, Kevin Young

2014-01-01T23:59:59.000Z

119

Underwater Coatings for Contamination Control  

SciTech Connect

The Idaho National Engineering and Environmental Laboratory (INEEL) is deactivating several fuel storage basins. Airborne contamination is a concern when the sides of the basins are exposed and allowed to dry during water removal. One way of controlling this airborne contamination is to fix the contamination in place while the pool walls are still submerged. There are many underwater coatings available on the market that are used in marine, naval and other applications. A series of tests were run to determine whether the candidate underwater fixatives are easily applied and adhere well to the substrates (pool wall materials) found in INEEL fuel pools. The four pools considered included 1) Test Area North (TAN-607) with epoxy painted concrete walls; 2) Idaho Nuclear Technology and Engineering Center (INTEC) (CPP-603) with bare concrete walls; 3) Materials Test Reactor (MTR) Canal with stainless steel lined concrete walls; and 4) Power Burst Facility (PBF-620) with stainless steel lined concrete walls on the bottom and epoxy painted carbon steel lined walls on the upper portions. Therefore, the four materials chosen for testing included bare concrete, epoxy painted concrete, epoxy painted carbon steel, and stainless steel. The typical water temperature of the pools varies from 55oF to 80oF dependent on the pool and the season. These tests were done at room temperature. The following criteria were used during this evaluation. The underwater coating must: · Be easy to apply · Adhere well to the four surfaces of interest · Not change or have a negative impact on water chemistry or clarity · Not be hazardous in final applied form · Be proven in other underwater applications. In addition, it is desirable for the coating to have a high pigment or high cross-link density to prevent radiation from penetrating. This paper will detail the testing completed and the test results. A proprietary two-part, underwater epoxy owned by S. G. Pinney and Associates was selected to be applied by divers after scrubbing loose contamination off the basin walls and floors using a ship hull scrubber and vacuuming up the sludge. A special powered roller with two separate heated hoses that allowed the epoxy to mix at the roller surface was used to eliminate pot time concerns. The walls were successfully coated and water was removed from the pool with no airborne contamination problems.

Julia L. Tripp; Kip Archibald; Ann-Marie Phillips; Joseph Campbell

2004-02-01T23:59:59.000Z

120

ARSENIC UPTAKE BY TWO HYPERACCUMULATOR FERNS FROM FOUR ARSENIC CONTAMINATED SOILS  

E-Print Network (OSTI)

(Cai et al., 2002). Smelting and mining sites are often significant sources Water, Air, and Soil Pollution (2005) 168: 71­89 C Springer 2005 #12;72 A. O. FAYIGA AND L. Q. MA of arsenic contamination

Ma, Lena

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

General Air Permits (Louisiana) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

General Air Permits (Louisiana) General Air Permits (Louisiana) General Air Permits (Louisiana) < Back Eligibility Agricultural Construction Industrial Investor-Owned Utility Municipal/Public Utility Rural Electric Cooperative Utility Program Info State Louisiana Program Type Environmental Regulations Provider Louisiana Department of Environmental Quality Any source, including a temporary source, which emits or has the potential to emit any air contaminant requires an air permit. Facilities with potential emissions less than 5 tons per year of any regulated air pollutant do not need a permit. The Louisiana Department of Environmental Quality issues Title V General Permits. The permit is developed based on equipment types versus facility types, the general permits are not limited in their use to a specific industry or category. Title V permits combine

122

Air Chemistry and Pollution Spring 2014  

E-Print Network (OSTI)

ATOC 3500 Air Chemistry and Pollution Spring 2014 Meeting: T/Th, 12:30 ­ 1:45 am; Duane G1B25 in the news; for example, the quality of the air we breathe directly affects our health. In addition to mitigate the effects of air pollution. Finally, we examine some recent examples of atmospheric chemical

Toohey, Darin W.

123

Indoor air pollution: a public health perspective  

Science Journals Connector (OSTI)

...systems to comply with new ASHRAE standard 62-1981 Provide for separation...ordinances, or performance standards to protect the public Provide...equipment, and performance of HVAC systems Table 4. Components...Recodification of air contaminant standards," Fed. Regist. 40, 23072...

JD Spengler; K Sexton

1983-07-01T23:59:59.000Z

124

Remediation of water contamination using catalytic technologies  

Science Journals Connector (OSTI)

Remediation of contaminated ground and underground water is becoming a critical issue in Europe and worldwide. We discuss here the role of catalysis in water remediation, with reference to two specific examples of catalytic water remediation technologies: (i) the elimination of nitrate and pesticides from water contaminated as a result of agricultural practices and (ii) the conversion of methyl tert-butyl ether (MTBE) in contaminated underground water. Of particular interest is a technology based on catalytic membranes for remediation of water contaminated by nitrate, which offers various advantages with respect to conventional technologies. Using a Pd-Cu-based catalytic membrane, a reaction temperature below 15 °C, a mixed 4:1 CO2:H2 feed and controlling bulk solution pH by \\{HCl\\} addition, it is possible to obtain a nitrate conversion higher than 80% even with ammonium ion formation below 0.5 ppm, i.e. the maximum concentration allowed to meet the requirements for drinking water quality. In MTBE conversion in contaminated underground water, acid zeolites with suitable pore structures (channel structure and pore openings) such as H-ZSM-5 and H-BEA can be used as catalytic permeable reactive barriers for in situ remediation. These zeolites not only act as adsorbents for both MTBE and its reaction products, but also effectively catalyze the hydrolysis of MTBE to t-butyl alcohol (TBA) and methanol (MeOH) which then can be rapidly biodegraded by indigenous microorganisms.

Gabriele Centi; Siglinda Perathoner

2003-01-01T23:59:59.000Z

125

Maintaining Indoor Air Quality During Construction and Renovation Projects  

E-Print Network (OSTI)

and pollutants that can impact the indoor air quality (IAQ) of a building. These contaminants may be transported communication efforts can successfully control pollutant levels, allay concerns, and maintain occupant comfort to nuisance dusts and odors from a construction site unacceptable. Indoor air pollutants are typically complex

Huang, Jianyu

126

Acoustics by additive manufacturing:.  

E-Print Network (OSTI)

??This study focuses on exploring the merging field of additive manufacturing and acoustics and introduces a new type of sound absorber which is regulating performance… (more)

Setaki, F.

2012-01-01T23:59:59.000Z

127

Mercury contamination extraction  

DOE Patents (OSTI)

Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom.

Fuhrmann, Mark (Silver Spring, MD); Heiser, John (Bayport, NY); Kalb, Paul (Wading River, NY)

2009-09-15T23:59:59.000Z

128

Subsurface Contamination Control  

SciTech Connect

There are two objectives of this report, ''Subsurface Contamination Control''. The first is to provide a technical basis for recommending limiting radioactive contamination levels (LRCL) on the external surfaces of waste packages (WP) for acceptance into the subsurface repository. The second is to provide an evaluation of the magnitude of potential releases from a defective WP and the detectability of the released contents. The technical basis for deriving LRCL has been established in ''Retrieval Equipment and Strategy for Wp on Pallet'' (CRWMS M and O 2000g, 6.3.1). This report updates the derivation by incorporating the latest design information of the subsurface repository for site recommendation. The derived LRCL on the external surface of WPs, therefore, supercede that described in CRWMS M and O 2000g. The derived LRCL represent the average concentrations of contamination on the external surfaces of each WP that must not be exceeded before the WP is to be transported to the subsurface facility for emplacement. The evaluation of potential releases is necessary to control the potential contamination of the subsurface repository and to detect prematurely failed WPs. The detection of failed WPs is required in order to provide reasonable assurance that the integrity of each WP is intact prior to MGR closure. An emplaced WP may become breached due to manufacturing defects or improper weld combined with failure to detect the defect, by corrosion, or by mechanical penetration due to accidents or rockfall conditions. The breached WP may release its gaseous and volatile radionuclide content to the subsurface environment and result in contaminating the subsurface facility. The scope of this analysis is limited to radioactive contaminants resulting from breached WPs during the preclosure period of the subsurface repository. This report: (1) documents a method for deriving LRCL on the external surfaces of WP for acceptance into the subsurface repository; (2) provides a table of derived LRCL for nuclides of radiological importance; (3) Provides an as low as is reasonably achievable (ALARA) evaluation of the derived LRCL by comparing potential onsite and offsite doses to documented ALARA requirements; (4) Provides a method for estimating potential releases from a defective WP; (5) Provides an evaluation of potential radioactive releases from a defective WP that may become airborne and result in contamination of the subsurface facility; and (6) Provides a preliminary analysis of the detectability of a potential WP leak to support the design of an airborne release monitoring system.

Y. Yuan

2001-11-16T23:59:59.000Z

129

Active Sites Additional Information | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cleanup Sites » Active Sites Additional Information Cleanup Sites » Active Sites Additional Information Active Sites Additional Information Active Sites Additional Information The Office of Environmental Management (EM) supports the Department's Strategic Plan to complete the environmental remediation of legacy and active sites, while protecting human health and the environment by completing environmental remediation of legacy and active Cold War sites. The EM program was established in 1989 and is responsible for the cleanup of millions of gallons of liquid radioactive waste, millions of cubic yards of solid radioactive wastes, thousands of tons of spent (used) nuclear fuel and special nuclear material, huge quantities of contaminated soil and water, disposition of large volumes of transuranic and mixed/low-level

130

Microsoft Word - Additional links  

Office of Legacy Management (LM)

Links: Links: Link to annual groundwater reports on LM website: http://www.lm.doe.gov/Monticello/Documents.aspx#gwreports Links to peer-reviewed papers referenced in the Program Status and Analytical Update (Note: Due to copyright restrictions, links to these papers, rather than reproductions, are provided): a. Harding, Lee E. "Non-linear uptake and hormesis effects of selenium in red- winged blackbirds (Agelaius phoeniceus)". Science of the Total Environment 389 (2008) 350-366. Available through sciencedirect at: http://www.sciencedirect.com/science/article/pii/S0048969707010029 b. King, Kirke A. and Thomas W. Custer. "Reproductive Success of Barn Swallows Nesting Near a Selenium-Contaminated Lake in East Texas, USA". Environmental Pollution 84 (1994) 53-58. Available through sciencedirect at:

131

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network (OSTI)

Collection Methods, Health Effects Institute, Mickely LelandMatter Species, Health Effects Institute:HEI 130 Pt 2

Logue, J.M.

2010-01-01T23:59:59.000Z

132

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network (OSTI)

implications for indoor nitrogen dioxide concentrations."concentrations of indoor nitrogen dioxide in Hamburg (westand concentrations of indoor nitrogen dioxide in Barcelona,

Logue, J.M.

2010-01-01T23:59:59.000Z

133

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network (OSTI)

defined a generally acceptable cancer risk level for HAPs.levels based on an acceptable level of risk. Thecalculate acceptable exposure concentration for cancer risk

Logue, J.M.

2010-01-01T23:59:59.000Z

134

Hazard Assessment of Chemical Air Contaminants Measured in Residences  

E-Print Network (OSTI)

Conference & Exhibition Healthy Buildings 2009, Syracuse, NYConference & Exhibition Healthy Buildings 2009, Syracuse, NYproceedings from the 2009 Healthy Building Conference held

Logue, J.M.

2010-01-01T23:59:59.000Z

135

Relation of Radon to Non-active Air Contamination  

Science Journals Connector (OSTI)

... Identification of the activity as radon products was obtained by tracing the decay through periods longer than two hours, and ... transmitted to that of a clean filter paper by a photoelectric densitometer. Although variations in radon over this period were considerably less (under a 20 to 1 maximum) than instances ...

C. D. THOMAS; M. K. GAINER; T. W. BALL

1955-04-23T23:59:59.000Z

136

Air Pollution Control (Michigan) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air Pollution Control (Michigan) Air Pollution Control (Michigan) Air Pollution Control (Michigan) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Program Info State Michigan Program Type Environmental Regulations Siting and Permitting Provider Department of Environmental Quality This rule requires an annual report from a commercial, industrial, or governmental source of emission of an air contaminant if, in the judgment of the Department, information on the quantity and composition of an air

137

Management of Transuranic Contaminated Material  

Directives, Delegations, and Requirements

To establish guidelines for the generation, treatment, packaging, storage, transportation, and disposal of transuranic (TRU) contaminated material.

1982-09-30T23:59:59.000Z

138

Laser Technology: Additive Manufacturing  

Science Journals Connector (OSTI)

Selective Laser Sintering, and in general Additive Manufacturing Processes are becoming mature technologies; in the ... systems that are even utilized for direct parts manufacturing. However, the parts final user...

Srichand Hinduja; Lin Li

2013-01-01T23:59:59.000Z

139

Research Summary Carbon Additionality  

E-Print Network (OSTI)

of the quality assurance of emissions reduction and carbon sequestration activities, but remains a source of much/reporting additionality rules. Technological Application of specific technology. Term Abatement arises within a specified

140

Combustion Air Preheat Should Be More Than Simply Recycling Energy  

E-Print Network (OSTI)

Combustion air preheat can and should result in fuel savings far in excess of the energy added to the combustion air. In a typical installation of air preheat on a fired tubular reactor, the addition of 2.5 million BTU/hr to the combustion air...

Grantom, R. L.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Purifying contaminated water  

SciTech Connect

Process for removing biorefractory compounds from contaminated water (e.g., oil shale retort waste-water) by contacting same with fragmented raw oil shale. Biorefractory removal is enhanced by preactivating the oil shale with at least one member of the group of carboxylic, acids, alcohols, aldehydes, ketones, ethers, amines, amides, sulfoxides, mixed ether-esters and nitriles. Further purification is obtained by stripping, followed by biodegradation and removal of the cells.

Daughton, Christian G. (San Pablo, CA)

1983-01-01T23:59:59.000Z

142

PRE-HOSPITAL PRACTICES FOR HANDLING A RADIOLOGICALLY CONTAMINATED PATIENT  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pre-hospital Practices for Handling a Pre-hospital Practices for Handling a Pre-hospital Practices for Handling a Pre-hospital Practices for Handling a Pre-hospital Practices for Handling a Pre-hospital Practices for Handling a Radiologically Contaminated Patient Radiologically Contaminated Patient Radiologically Contaminated Patient Radiologically Contaminated Patient Radiologically Contaminated Patient DISCLAIMER DISCLAIMER DISCLAIMER DISCLAIMER DISCLAIMER Viewing this video and completing the enclosed printed study material do not by themselves provide sufficient skills to safely engage in or perform duties related to emergency response to a transportation accident involving radioactive material. Meeting that goal is beyond the scope of this video and requires either additional specific areas of competency or more hours of training

143

Mapping the Life Cycle Analysis and Sustainability Impact of Design for Environment Principles  

E-Print Network (OSTI)

Manufacturing, Quality Control, Air Quality, Weight, Material Contaminants and Additives,for manufacturing. “Limit contaminants- additives, coatings,

Oehlberg, Lora; Bayley, Cindy; Hartman, Cole; Agogino, Alice

2012-01-01T23:59:59.000Z

144

Health damages from air pollution in China Kira Matus a,1  

E-Print Network (OSTI)

Health damages from air pollution in China Kira Matus a,1 , Kyung-Min Nam b,1, *, Noelle E. Selin c in negative health outcomes, such as contaminated water and high levels of air pollution, also incur real of air pollution arising from its negative impact on human health (Nielsen and Ho, 2007). Most of them (e

145

Understanding Mechanisms of Radiological Contamination  

SciTech Connect

Over the last 50 years, the study of radiological contamination and decontamination has expanded significantly. This paper addresses the mechanisms of radiological contamination that have been reported and then discusses which methods have recently been used during performance testing of several different decontamination technologies. About twenty years ago the Idaho Nuclear Technology Engineering Center (INTEC) at the INL began a search for decontamination processes which could minimize secondary waste. In order to test the effectiveness of these decontamination technologies, a new simulated contamination, termed SIMCON, was developed. SIMCON was designed to replicate the types of contamination found on stainless steel, spent fuel processing equipment. Ten years later, the INL began research into methods for simulating urban contamination resulting from a radiological dispersal device (RDD). This work was sponsored by the Defense Advanced Research Projects Agency (DARPA) and included the initial development an aqueous application of contaminant to substrate. Since 2007, research sponsored by the US Environmental Protection Agency (EPA) has advanced that effort and led to the development of a contamination method that simulates particulate fallout from an Improvised Nuclear Device (IND). The IND method diverges from previous efforts to create tenacious contamination by simulating a reproducible “loose” contamination. Examining these different types of contamination (and subsequent decontamination processes), which have included several different radionuclides and substrates, sheds light on contamination processes that occur throughout the nuclear industry and in the urban environment.

Rick Demmer; John Drake; Ryan James, PhD

2014-03-01T23:59:59.000Z

146

The Viscosity of Air  

Science Journals Connector (OSTI)

The viscosity of air has been remeasured with the rotating cylinder apparatus used by Day and Bleakney. All of the constants have been redetermined, and especial attention has been given to the corrections to the simple theory. The value obtained at 22°C is ?=1.8243±0.0045 c.g.s. units. This raises the oil drop value of e to 4.796 e.s.u. It is shown in the appendix that a correction must be applied for the opening between the suspended cylinder and the guard cylinders, and also a correction must be applied for the moment of inertia of the air carried around by the cylinder when determining its moment of inertia. Neglect of these corrections has introduced some additional uncertainty into other work.

W. V. Houston

1937-10-01T23:59:59.000Z

147

Contaminant levels and source strengths in U.S. retail stores A pilot study  

NLE Websites -- All DOE Office Websites (Extended Search)

Contaminant levels and source strengths in U.S. retail stores A pilot study Contaminant levels and source strengths in U.S. retail stores A pilot study Title Contaminant levels and source strengths in U.S. retail stores A pilot study Publication Type Conference Paper Year of Publication 2012 Authors Chan, Wanyu R., Meera A. Sidheswaran, Douglas P. Sullivan, Sebastian Cohn, and William J. Fisk Conference Name Healthy Buildings 2012 - 10th International Conference Date Published 2012 Conference Location Brisbane Convention & Exhibition Centre, Brisbane, Queensland Keywords air-exchange rate, building ventilation, indoor-outdoor ratio, particles, vocs Abstract Retail stores have many sources of indoor air contaminants that can cause potential health and odor concerns. One way to control exposure to these contaminants is to provide adequate ventilation. This study aims to characterize the whole-building emission rates of contaminants in certain retail types. The pilot study included two grocery stores and three furniture stores in northern California. We measured simultaneously the building ventilation rates by SF6 decay and contaminant concentrations in each store for one to two days. Contaminants were measured at multiple indoor locations and at one outdoor location near the building. Formaldehyde, acetaldehyde, and acrolein are three compounds with concentrations above health guidelines in some stores. In several cases, indoor concentrations of certain VOCs and PM were higher indoors than outdoors, suggesting potential indoor sources. Our goal is to characterize the range of contaminant source strengths in 25 to 30 stores in California.

148

Usage Codes Additional Information  

E-Print Network (OSTI)

Usage Codes 1 5 2 6 3 7 4 8 Additional Information Winches (on deck) Electronics RPM: Max hoistingPresent? Usage Model Ratio Accuracy (m) Type: Electric / Hydraulic / Other _________________ KHz: GPS: Internal Other: Y / N Other: Y / N Y / NOther: Hydrophone Burned on board: Net sensors Usage Manufacturer High

149

Carbon Additionality: Discussion Paper  

E-Print Network (OSTI)

ahead, and identifying the carbon pools and other green house gas emissions sources and savings coveredCarbon Additionality: A review Discussion Paper Gregory Valatin November 2009 Forest Research. Voluntary Carbon Standards American Carbon Registry Forest Carbon Project Standard (ACRFCPS) 27 Carbon

150

Filter for on-line air monitor unaffected by radon progeny and method of using same  

DOE Patents (OSTI)

An apparatus for testing air having contaminants and radon progeny therein. The apparatus includes a sampling box having an inlet for receiving the air and an outlet for discharging the air. The sampling box includes a filter made of a plate of sintered stainless steel. The filter traps the contaminants, yet allows at least a portion of the radon progeny to pass therethrough. A method of testing air having contaminants and radon progeny therein. The method includes providing a testing apparatus that has a sampling box with an inlet for receiving the air and an outlet for discharging the air, and has a sintered stainless steel filter disposed within said sampling box; drawing air from a source into the sampling box using a vacuum pump; passing the air through the filter; monitoring the contaminants trapped by the filter; and providing an alarm when a selected level of contaminants is reached. The filter traps the contaminants, yet allows at least a portion of the radon progeny to pass therethrough.

Phillips, Terrance D. (Aiken, SC); Edwards, Howard D. (Augusta, GA)

1999-01-01T23:59:59.000Z

151

Preconditioning Outside Air: Cooling Loads from Building Ventilation  

E-Print Network (OSTI)

of the standard. To mitigate or nullify these additional weather loads, outdoor air preconditioning technologies are being promoted in combination with conventional HVAC operations downstream as a means to deliver the required fresh air and control humidity...

Kosar, D.

1998-01-01T23:59:59.000Z

152

Additional Climate Reports  

NLE Websites -- All DOE Office Websites (Extended Search)

Additional Climate Reports Print E-mail Additional Climate Reports Print E-mail Intergovernmental Panel on Climate Change (IPCC) Reports Internationally, many assessments have been produced to address important questions related to environmental issues such as ozone depletion, climate change, and the loss of biodiversity. Many of these assessments have provided the scientific basis for the elaboration of international agreements, including the Assessment Report Series from the Intergovernmental Panel on Climate Change (IPCC). The IPCC is a scientific intergovernmental body set up by the World Meteorological Organization (WMO) and by the United Nations Environment Programme (UNEP). IPCC assesses the scientific, technical and socio-economic information relevant for the understanding of the risk of human-induced climate change. Because of its intergovernmental nature, the IPCC is able to provide scientific technical and socio-economic information in a policy-relevant but policy neutral way to decision makers.

153

Active Sites Additional Information | Department of Energy  

Energy Savers (EERE)

of millions of gallons of radioactive and chemical waste stored in large underground tanks; disposing of spent nuclear fuel; removing contaminated soil; treating contaminated...

154

Fate and Exposure Modeling of Environmental Contaminants  

NLE Websites -- All DOE Office Websites (Extended Search)

Fate and Exposure Modeling of Environmental Contaminants Fate and Exposure Modeling of Environmental Contaminants Speaker(s): Mathew MacLeod Date: June 29, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Thomas McKone Chemical products pervade modern society, and furnish unprecedented wealth and comfort to citizens of countries with industrialized economies. Demand for products such as pesticides, industrial chemicals, flame-retardants and additives for consumer products requires large scale production and distribution of these chemicals, and they are inevitably released into the environment. Responsible management of chemicals therefore requires a quantitative understanding of amounts released, how the chemicals partition and travel in the environment, and how they might expose and thus adversely affect human and ecological populations. This

155

Activities of Pu and Am Isotopes and Isotopic Ratios in a Soil Contaminated by Weapons-Grade Plutonium  

Science Journals Connector (OSTI)

The Radiation Division of the Surveillance Directorate for the U.S. Air Force Institute for Environment, Safety and Occupational Health Risk Analysis collected soil samples at the BOMARC site in June, 2000. ... with a mean value of 0.19, which is close to the value reported from the BOMARC WGP contaminated soil (6) and the Rocky Flats WGP contaminated soil (27). ...

M. H. Lee; S. B. Clark

2005-06-28T23:59:59.000Z

156

Chapter 28 - Nanotechnology for Contaminated Subsurface Remediation: Possibilities and Challenges  

Science Journals Connector (OSTI)

Groundwater represents a significant source of potable and industrial process water throughout the world. With population growth the availability of this precise resource is becoming increasingly scarce. Historically, the subsurface was thought to act as a natural filter of wastes injected into the ground. The potential for these wastes to persist in the subsurface for decades, potentially contaminating drinking water sources was ignored. Not only do toxic compounds have significant detrimental impacts on the environment and human health, there are also economic and social costs associated with contaminated groundwater. Due to increased demands on groundwater resources and historical contamination there is a need to remediate contaminated groundwater to meet current and future demands. At many hazardous sites, however, current remediation technologies routinely defy attempts at satisfactory restoration. As a result new, innovative remediation technologies are required. Nanomaterials are receiving widespread interest in a variety of fields due to their unique, beneficial chemical, physical, and mechanical properties. They have recently been proposed to address a number of environmental problems including the remediation of the contaminated subsurface. A wide variety of nanoparticles, such as metallic (e.g., zero valent iron or bimetallic nanoparticles) and carbon based nanoparticles (e.g., C60 nanoparticles) have been investigated to assess their potential for contaminated site remediation. Studies suggest that nanoparticles have the ability to convert or sequester a wide variety of subsurface contaminants (e.g., chlorinated solvents and heavy metals). In addition they are more reactive than similar, larger sized, reactive materials. The majority of these studies have, however, been conducted at the batch scale. Considerable work is necessary prior to the application of nanotechnology for contaminated site remediation. One problem, for example, is the delivery of reactive nanometals to the contaminated source zone where they will react. This chapter will summarize the use of nanoparticles for contaminated site remediation and highlight some of the challenges that remain unresolved.

Denis M. O’Carroll

2014-01-01T23:59:59.000Z

157

Standards for Contamination Control Areas  

Science Journals Connector (OSTI)

The objective of standards and specifications used for contamination control is to establish controls and definitions that will allow satisfactory cleanroom construction and good product fabrication within cleanr...

Alvin Lieberman

1992-01-01T23:59:59.000Z

158

Can fracking contaminate drinking water?  

Science Journals Connector (OSTI)

Tiny cracks link deep shale gas reservoirs to shallow aquifers, but they may not be to blame for reports of contaminated drinking water

2012-01-01T23:59:59.000Z

159

Protections: Sediment Control = Contaminant Retention  

NLE Websites -- All DOE Office Websites (Extended Search)

Sediment Control Protections: Sediment Control Contaminant Retention LANL maintains hundreds of wells, stream sampling stations and stormwater control structures to protect...

160

Emission Standards for Contaminants (Iowa)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations list emissions standards for various contaminants, and contain special requirements for anaerobic lagoons. These regulations also describe alternative emissions limits, which may...

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Air Leakage of Furnaces and Air Handlers  

NLE Websites -- All DOE Office Websites (Extended Search)

Air Leakage of Furnaces and Air Handlers Air Leakage of Furnaces and Air Handlers Title Air Leakage of Furnaces and Air Handlers Publication Type Journal Article LBNL Report Number LBNL-5553E Year of Publication 2010 Authors Walker, Iain S., Mile Lubliner, Darryl J. Dickerhoff, and William W. Delp Journal 2010 ACEEE Summer Study on Energy Efficiency in Buildings The Climate for efficiency is now Date Published 08/2010 Abstract In recent years, great strides have been made in reducing air leakage in residential and to a lesser extent small commercial forced air duct systems. Several authorities have introduced low leakage limits for thermal distribution systems; for example, the State of California Energy Code for Buildings gives credit for systems that leak less than 6% of the total air flow at 25 Pa.

162

Texas Clean Air Act (Texas) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Texas Clean Air Act (Texas) Texas Clean Air Act (Texas) Texas Clean Air Act (Texas) < Back Eligibility Utility Commercial Agricultural Investor-Owned Utility Industrial Construction Municipal/Public Utility Local Government Rural Electric Cooperative Tribal Government Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Program Info State Texas Program Type Environmental Regulations Provider Texas Commission on Environmental Quality This Act is designed to safeguard the state's air resources from pollution by requiring the control and abatement of air pollution and emissions of air contaminants, consistent with the protection of public health, general welfare, and physical property, including the esthetic enjoyment of air resources by the public and the maintenance of adequate visibility. The Act

163

Metal-Air Batteries  

SciTech Connect

Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

2011-08-01T23:59:59.000Z

164

Air emissions inventory for the Idaho National Engineering Laboratory -- 1995 emissions report  

SciTech Connect

This report presents the 1995 update of the Air Emission Inventory for the Idaho National Engineering Laboratory (INEL). The INEL Air Emission Inventory documents sources and emissions of non-radionuclide pollutants from operations at the INEL. The report describes the emission inventory process and all of the sources at the INEL, and provides non-radionuclide emissions estimates for stationary sources. The air contaminants reported include nitrogen oxides, sulfur oxides, carbon monoxide, volatile organic compounds, particulates, and hazardous air pollutants (HAPs).

NONE

1996-06-01T23:59:59.000Z

165

Degradation characteristics of air cathode in zinc air fuel cells  

Science Journals Connector (OSTI)

Abstract The zinc air fuel cell (ZAFC) is a promising candidate for electrical energy storage and electric vehicle propulsion. However, its limited durability has become a major obstacle for its successful commercialization. In this study, 2-cell stacks, 25 cm² cells and three-electrode half-cells are constructed to experimentally investigate the degradation characteristics of the air cathode. The results of electrochemical tests reveal that the peak power density for the 25 cm2 cell with a new air cathode is 454 mW cm?2, which is twice as the value of the used air cathode. The electrochemical impedance analysis shows that both the charge transfer resistance and the mass transfer resistance of the used air cathodes have increased, suggesting that the catalyst surface area and gas diffusion coefficient have decreased significantly. Additionally, the microstructure and morphology of the catalytic layer (CL) and gas diffusion layer (GDL) are characterized by scanning electron microscopes (SEM). SEM results confirm that the micropores in CL and GDL of the used air cathode are seriously clogged, and many catalyst particles are lost. Therefore, the performance degradation is mainly due to the clogging of micropores and loss of catalyst particles. Furthermore, hypotheses of degradation mechanism and mitigation strategies for GDL and CL are discussed briefly.

Ze Ma; Pucheng Pei; Keliang Wang; Xizhong Wang; Huachi Xu; Yongfeng Liu; Guanlin peng

2015-01-01T23:59:59.000Z

166

Compressed Air Load Reduction Approaches and Innovations  

E-Print Network (OSTI)

are assessed. It is a common practice in facilities to simply add compressor capacity when faced with supply pressure or volume deficiencies, increasing the energy consumption associated with compressed air systems in industry. Additionally, in recent years...

D'Antonio, M.; Epstein, G.; Moray, S.; Schmidt, C.

2005-01-01T23:59:59.000Z

167

Contamination and solid state welds.  

SciTech Connect

Since sensitivity to contamination is one of the verities of solid state joining, there is a need for assessing contamination of the part(s) to be joined, preferably nondestructively while it can be remedied. As the surfaces that are joined in pinch welds are inaccessible and thus provide a greater challenge, most of the discussion is of the search for the origin and effect of contamination on pinch welding and ways to detect and mitigate it. An example of contamination and the investigation and remediation of such a system is presented. Suggestions are made for techniques for nondestructive evaluation of contamination of surfaces for other solid state welds as well as for pinch welds. Surfaces that have good visual access are amenable to inspection by diffuse reflection infrared Fourier transform (DRIFT) spectroscopy. Although other techniques are useful for specific classes of contaminants (such as hydrocarbons), DRIFT can be used most classes of contaminants. Surfaces such as the interior of open tubes or stems that are to be pinch welded can be inspected using infrared reflection spectroscopy. It must be demonstrated whether or not this tool can detect graphite based contamination, which has been seen in stems. For tubes with one closed end, the technique that should be investigated is emission infrared spectroscopy.

Mills, Bernice E.

2007-05-01T23:59:59.000Z

168

Feasibility of Municipal Water Mains as Heat Sink for Residential Air-Conditioning  

E-Print Network (OSTI)

It has been proposed that municipal water mains be used as the heat sink or the heat source for air-conditioning or heating, respectively. This paper addresses the extent of thermal contamination associated with the use of municipal water...

Vliet, G. C.

1994-01-01T23:59:59.000Z

169

Air Pollution Control  

Science Journals Connector (OSTI)

Petroleum and chemical processes are responsible for many emissions both into the air. Most relevant emissions into the air are nitrous oxides (NOx), sulfur oxides ... compounds (VOC).The major cause of all air pollution

Alireza Bahadori

2014-01-01T23:59:59.000Z

170

Hickam Air Force Base  

Energy.gov (U.S. Department of Energy (DOE))

Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters.

171

OLYMPIC AIR QUALITY QUESTIONABLE  

Science Journals Connector (OSTI)

OLYMPIC AIR QUALITY QUESTIONABLE ... Athletes GOING FOR GOLD worry about Beijing’s air ... Atmospheric chemists say the air quality during the Beijing Games literally rests on which direction the winds blow. ...

RACHEL PETKEWICH

2008-07-28T23:59:59.000Z

172

Air Quality and Pollution  

Science Journals Connector (OSTI)

Air quality refers to the physical, chemical, and biological characteristics of air, both in outside space and in enclosed ... other non?industrial working places, and residencies. Air pollution is the abnormal ...

Zoran Marmut

2008-01-01T23:59:59.000Z

173

Decommissioning of the TA-42 plutonium contaminated incinerator facility  

SciTech Connect

During 1978, a plutonium (/sup 239/Pu) contaminated incinerator facility at the Los Alamos National Laboratory, Los Alamos, New Mexico, was decommissioned. The project involved dismantling the facility and burying the debris at an on-site radioactive solid waste disposal/storage area. Contaminated soil from the 5000 m/sup 2/ area was also buried. The facility was constructed in 1951 to incinerate /sup 239/Pu contaminated wastes. It was later used as a decontamination facility. The major features included a 185-m/sup 2/ floor area control building, incinerator, cyclone dust collector, spray cooler, venturi scrubber, air filter bank, ash separator, and two 140 000-liter ash storage tanks. Six-hundred cubic meters of debris and 1200 m/sup 3/ of soil contaminated with less than 10 nCi /sup 239/Pu per gram of soil were buried at the Laboratory disposal area. Five cubic meters of /sup 239/Pu contaminated ash residues containing more than 10 nCi /sup 239/Pu per gram of waste were packaged and stored to meet the Department of Energy's 20-year retrievable storage criteria. The operation consumed 80 work days and 5800 manhours at a cost of $150 000. This report presents the details concerning decommissioning procedures, the health physics, the waste management, the environmental surveillance results, and a cost breakdown for the operation.

Harper, J.R.; Garde, R.

1981-11-01T23:59:59.000Z

174

Primary zone air proportioner  

DOE Patents (OSTI)

An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

Cleary, Edward N. G. (San Diego, CA)

1982-10-12T23:59:59.000Z

175

Low-energy beta spectroscopy using pin diodes to monitor tritium surface contamination  

SciTech Connect

We show that tritium betas emitted from a surface can be counted using a pin photodiode as a solid state charged particle detector. Furthermore, we show that the range of tritium betas through air is sufficient to allow measurement of tritium on samples in air by this method. These two findings make possible a new method to survey tritium surface contamination which has advantages over existing methods. We have built and tested several prototype instruments which use this method to measure tritium surface contamination, including a compact portable unit. The design of these instruments and results from tests and calibrations are described. Potential applications of this new method to monitor tritium are discussed.

Wampler, W.R.; Doyle, B.L.

1994-06-01T23:59:59.000Z

176

CONTAMINANT MONITORING & RESEARCH SANFRANCISCOESTUARYINSTITUTE  

E-Print Network (OSTI)

supposed to be the conversion of DBW hardcopy monitoring data to electronic format, the data was already in electronic format. However, additional analysis of this data was necessary and a Tier 1 risk assessment................................................................................................ 5 Toxicity Reference Values for Risk Quotient Calculations

177

Combustion aerosols formed during burning of radioactively contaminated materials: Experimental results  

SciTech Connect

Safety assessments and environmental impact statements for nuclear fuel cycle facilities require an estimate of potential airborne releases. Radioactive aerosols generated by fires were investigated in experiments in which combustible solids and liquids were contaminated with radioactive materials and burned. Uranium in powder and liquid form was used to contaminate five fuel types: polychloroprene, polystyrene, polymethylmethacrylate, cellulose, and a mixture of 30% tributylphosphate (TBP) in kerosene. Heat flux, oxygen concentration, air flow, contaminant concentration, and type of ignition were varied in the experiments. The highest release (7.1 wt %) came from burning TBP/kerosene over contaminated nitric acid. Burning cellulose contaminated with uranyl nitrate hexahydrate liquid gave the lowest release (0.01 wt %). Rate of release and particle size distribution of airborne radioactive particles were highly dependent on the type of fuel burned.

Halverson, M.A.; Ballinger, M.Y.; Dennis, G.W.

1987-03-01T23:59:59.000Z

178

Gaseous, Chemical, and Other Contaminant Descriptions  

Science Journals Connector (OSTI)

Most contamination control technology considers generalized and often unidentified particulate material as the major contaminant, but there are many situations in which gases, chemical films, microbiological m...

Alvin Lieberman

1992-01-01T23:59:59.000Z

179

Handling and Packaging a Potentially Radiologically Contaminated...  

Office of Environmental Management (EM)

Radiologically Contaminated Patient.docx More Documents & Publications Pre-Hospital Practices for Handling a Radiologically Contaminated Patient Medical ExaminerCoroner...

180

Air Quality Chris Keil, Bowling Green State University  

E-Print Network (OSTI)

efforts. Local boards of health issue air pollution advisories. Local boards of health have input areas, where federally targeted air pollution issues are a problem. In addition, boards of health that the concentrations last. Local boards of health need to have a general understanding of how air pollution sources

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

CONTAMINATED PROCESS EQUIPMENT REMOVAL FOR THE D&D OF THE 232-Z CONTAMINATED WASTE RECOVERY PROCESS FACILITY AT THE PLUTONIUM FINISHING PLANT (PFP)  

SciTech Connect

This paper describes the unique challenges encountered and subsequent resolutions to accomplish the deactivation and decontamination of a plutonium ash contaminated building. The 232-Z Contaminated Waste Recovery Process Facility at the Plutonium Finishing Plant was used to recover plutonium from process wastes such as rags, gloves, containers and other items by incinerating the items and dissolving the resulting ash. The incineration process resulted in a light-weight plutonium ash residue that was highly mobile in air. This light-weight ash coated the incinerator's process equipment, which included gloveboxes, blowers, filters, furnaces, ducts, and filter boxes. Significant airborne contamination (over 1 million derived air concentration hours [DAC]) was found in the scrubber cell of the facility. Over 1300 grams of plutonium held up in the process equipment and attached to the walls had to be removed, packaged and disposed. This ash had to be removed before demolition of the building could take place.

HOPKINS, A.M.; MINETTE, M.J.; KLOS, D.B.

2007-01-25T23:59:59.000Z

182

Data Center Economizer Contamination and Humidity Study  

SciTech Connect

Data centers require continuous air conditioning to address high internal heat loads (heat release from equipment) and maintain indoor temperatures within recommended operating levels for computers. Air economizer cycles, which bring in large amounts of outside air to cool internal loads when weather conditions are favorable, could save cooling energy. There is reluctance from many data center owners to use this common cooling technique, however, due to fear of introducing pollutants and potential loss of humidity control. Concerns about equipment failure from airborne pollutants lead to specifying as little outside air as permissible for human occupants. To investigate contamination levels, particle monitoring was conducted at 8 data centers in Northern California. Particle counters were placed at 3 to 4 different locations within and outside of each data center evaluated in this study. Humidity was also monitored at many of the sites to determine how economizers affect humidity control. Results from this study indicate that economizers do increase the outdoor concentration in data centers, but this concentration, when averaged annually, is still below current particle concentration limits. Study results are summarized below: (1) The average particle concentrations measured at each location, both outside and at the servers, are shown in Table 1. Measurements show low particle concentrations at all data centers without economizers, regardless of outdoor particle concentrations. Particle concentrations were typically an order of magnitude below both outside particle concentrations and recently published ASHRAE standards. (2) Economizer use caused sharp increases in particle concentrations when the economizer vents were open. The particle concentration in the data centers, however, quickly dropped back to pre-economizer levels when the vents closed. Since economizers only allow outside air part of the time, the annual average concentrations still met the ASHRAE standards. However, concentration were still above the levels measured in data centers that do not use economizers (3) Current filtration in data centers is minimal (ASHRAE 40%) since most air is typically recycled. When using economizers, modest improvements in filtration (ASHRAE 85%) can reduce particle concentrations to nearly match the level found in data centers that do not use economizers. The extra cost associated with improve filters was not determined in this study. (4) Humidity was consistent and within the ASHRAE recommended levels for all data centers without economizers. Results show that, while slightly less steady, humidity in data centers with economizers can also be controlled within the ASHRAE recommended levels. However, this control of humidity reduces energy savings by limiting the hours the economizer vents are open. (5) The potential energy savings from economizer use has been measured in one data center. When economizers were active, mechanical cooling power dropped by approximately 30%. Annual savings at this center is estimated within the range of 60-80 MWh/year, representing approximately a 5% savings off the mechanical energy load of the data center. Incoming temperatures and humidity at this data center were conservative relative to the ASHRAE acceptable temperature and humidity ranges. Greater savings may be available if higher temperature humidity levels in the data center area were permitted. The average particle concentrations measured at each of the eight data center locations are shown in Table 1. The data centers ranged in size from approximately 5,000 ft{sup 2} to 20,000 ft{sup 2}. The indoor concentrations and humidity in Table 1 represents measurements taken at the server rack. Temperature measurements at the server rack consistently fell between 65-70 F. The Findings section contains a discussion of the individual findings from each center. Data centers currently operate under very low contamination levels. Economizers can be expected to increase the particle concentration in data centers, but the increase appears to still be

Shehabi, Arman; Tschudi, William; Gadgil, Ashok

2007-03-06T23:59:59.000Z

183

Atmospheric CO2 From Flask Air Samples at 10 Sites in the SIO Air Sampling  

NLE Websites -- All DOE Office Websites (Extended Search)

Flask Air Samples, SIO Network Flask Air Samples, SIO Network Atmospheric CO2 From Flask Air Samples at 10 Sites in the SIO Air Sampling Network Scripps Institution of Oceanography Monitoring Sites Scripps Institution of Oceanography Monitoring Sites Mauna Loa, Hawaii Mauna Loa weekly average CO2 concentrations derived from continuous air samples Barrow, Alaska American Samoa South Pole Daily average CO2 concentrations derived from continuous air samples Alert, NWT, Canada Cape Kumukahi Christmas Island Baring Head Kermadec Island La Jolla Pier La Jolla Pier weekly average CO2 concentrations derived from continuous air samples PDF Documentation available as Atmospheric Carbon Dioxide Concentrations at 10 Locations Spanning Latitudes 82°N to 90°S, (NDP-001a) For information on calibration and some additional literature, go to

184

Additive Manufacturing for Mass Customization  

Science Journals Connector (OSTI)

Additive manufacturing (AM) is a disruptive manufacturing technology that requires no tooling for production....additively build parts from numerous materials, including polymers, metals and ceramics. Within this...

Phil Reeves; Chris Tuck; Richard Hague

2011-01-01T23:59:59.000Z

185

Air Pollution Spring 2010  

E-Print Network (OSTI)

and control. 6. Examine regional and global air pollution issues. Prerequisite: CHEM 113 and (MATH 261 or MATHATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants

186

Fire in a contaminated area  

SciTech Connect

This document supports the development and presentation of the following accident scenario in the TWRS Final Safety Analysis Report: Fire in Contaminated Area. The calculations needed to quantify the risk associated with this accident scenario are included within.

Ryan, G.W., Westinghouse Hanford

1996-08-02T23:59:59.000Z

187

Method for testing earth samples for contamination by organic contaminants  

DOE Patents (OSTI)

Provided is a method for testing earth samples for contamination by organic contaminants, and particularly for aromatic compounds such as those found in diesel fuel and other heavy fuel oils, kerosene, creosote, coal oil, tars and asphalts. A drying step is provided in which a drying agent is contacted with either the earth sample or a liquid extract phase to reduce to possibility of false indications of contamination that could occur when humic material is present in the earth sample. This is particularly a problem when using relatively safe, non-toxic and inexpensive polar solvents such as isopropyl alcohol since the humic material tends to be very soluble in those solvents when water is present. Also provided is an ultraviolet spectroscopic measuring technique for obtaining an indication as to whether a liquid extract phase contains aromatic organic contaminants. In one embodiment, the liquid extract phase is subjected to a narrow and discrete band of radiation including a desired wave length and the ability of the liquid extract phase to absorb that wavelength of ultraviolet radiation is measured to provide an indication of the presence of aromatic organic contaminants. 2 figs.

Schabron, J.F.

1996-10-01T23:59:59.000Z

188

Surface water transport and distribution of uranium in contaminated sediments near a nuclear weapons processing facility  

E-Print Network (OSTI)

The extent of remobilization of uranium from contaminated soils adjacent to a nuclear weapons processing facility during episodic rain events was investigated. In addition, information on the solid phase associations of U in floodplain and suspended...

Batson, Vicky Lynn

1994-01-01T23:59:59.000Z

189

Air quality investigations of the Sandia National Laboratories Sol se Mete Aerial Cable Facility  

SciTech Connect

The air quality implications of the test and evaluation activities at the Sandia National Laboratories Sol se Mete Aerial Cable Facility are examined. All facets of the activity that affect air quality are considered. Air contaminants produced directly include exhaust products of rocket motors used to accelerate test articles, dust and gas from chemical explosives, and exhaust gases from electricity generators in the test arenas. Air contaminants produced indirectly include fugitive dust and exhaust contaminants from vehicles used to transport personnel and material to the test area, and effluents produced by equipment used to heat the project buildings. Both the ongoing program and the proposed changes in the program are considered. Using a reliable estimate of th maximum annual testing level, the quantities of contaminants released by project activities ar computed either from known characteristics of test items or from EPA-approved emission factors Atmospheric concentrations of air contaminants are predicted using EPA dispersion models. The predicted quantities and concentrations are evaluated in relation to Federal, New Mexico, an Bernalillo County air quality regulations and the human health and safety standards of the American Conference of Governmental Industrial Hygienists.

Gutman, W.M.; Silver, R.J. [New Mexico State Univ., Las Cruces, NM (United States). Physical Science Lab.

1994-12-01T23:59:59.000Z

190

Increasing the purity of additives  

Science Journals Connector (OSTI)

In the preparation of high-purity additives a low-temperature treatment with “Galosha” ... . In the preparation of high-purity sulfonate additives, a preliminary removal by settling of insoluble compounds must be...

A. L. Dol'berg

1969-06-01T23:59:59.000Z

191

ENVIRONMENTAL SAMPLING USING LOCATION SPECIFIC AIR MONITORING IN BULK HANDLING FACILITIES  

SciTech Connect

Since the introduction of safeguards strengthening measures approved by the International Atomic Energy Agency (IAEA) Board of Governors (1992-1997), international nuclear safeguards inspectors have been able to utilize environmental sampling (ES) (e.g. deposited particulates, air, water, vegetation, sediments, soil and biota) in their safeguarding approaches at bulk uranium/plutonium handling facilities. Enhancements of environmental sampling techniques used by the IAEA in drawing conclusions concerning the absence of undeclared nuclear materials or activities will soon be able to take advantage of a recent step change improvement in the gathering and analysis of air samples at these facilities. Location specific air monitoring feasibility tests have been performed with excellent results in determining attribute and isotopic composition of chemical elements present in an actual test-bed sample. Isotopic analysis of collected particles from an Aerosol Contaminant Extractor (ACE) collection, was performed with the standard bulk sampling protocol used throughout the IAEA network of analytical laboratories (NWAL). The results yielded bulk isotopic values expected for the operations. Advanced designs of air monitoring instruments such as the ACE may be used in gas centrifuge enrichment plants (GCEP) to detect the production of highly enriched uranium (HEU) or enrichments not declared by a State. Researchers at Savannah River National Laboratory in collaboration with Oak Ridge National Laboratory are developing the next generation of ES equipment for air grab and constant samples that could become an important addition to the international nuclear safeguards inspector's toolkit. Location specific air monitoring to be used to establish a baseline environmental signature of a particular facility employed for comparison of consistencies in declared operations will be described in this paper. Implementation of air monitoring will be contrasted against the use of smear ES when used during unannounced inspections, design information verification, limited frequency unannounced access, and complementary access visits at bulk handling facilities. Analysis of technical features required for tamper indication and resistance will demonstrate the viability of successful application of the system in taking ES within a bulk handling location. Further exploration of putting this technology into practice is planned to include mapping uranium enrichment facilities for the identification of optimal for installation of air monitoring devices.

Sexton, L.; Hanks, D.; Degange, J.; Brant, H.; Hall, G.; Cable-Dunlap, P.; Anderson, B.

2011-06-07T23:59:59.000Z

192

Additive manufacturing method of producing  

E-Print Network (OSTI)

Additive manufacturing method of producing silver or copper tracks on polyimide film Problem/stripping) using an additive process support by a novel bio- degradable photo-initiator package. technology. Building on previous work by Hoyd- Gigg Ng et al. [1,2], Heriot-Watt has developed an additive film

Painter, Kevin

193

Healthy Air Act (Maryland)  

Energy.gov (U.S. Department of Energy (DOE))

The Maryland Healthy Air Act was developed with the purpose of bringing Maryland into attainment with the National Ambient Air Quality Standards (NAAQS) for ozone and fine particulate matter by the...

194

Air and Water Pollution  

Science Journals Connector (OSTI)

Air Pollution.... Many pollutants enter our bodies through the air we breathe at 13,000 l/day ... to quantitatively understand the basic environmental physics of pollution. This chapter covers the foll...

David Hafemeister

2014-01-01T23:59:59.000Z

195

Aesculap, Inc. Air Products  

E-Print Network (OSTI)

Aesculap, Inc. Air Products Air Products Foundation Alaric Compliance Services, LLC Alvin H. Butz & Herger, Inc. Sodexo Campus Services Sodexo Inc. and Affiliates Stupp Bros., Inc. Sugarbush Products, Inc

Napier, Terrence

196

Air Activation Following an Atmospheric Explosion  

SciTech Connect

In addition to thermal radiation and fission products, nuclear explosions result in a very high flux of unfissioned neutrons. Within an atmospheric nuclear explosion, these neutrons can activate the various elemental components of natural air, potentially adding to the radioactive signature of the event as a whole. The goal of this work is to make an order-of-magnitude estimate of the total amount of air activation products that can result from an atmospheric nuclear explosion.

Lowrey, Justin D.; McIntyre, Justin I.; Prichard, Andrew W.; Gesh, Christopher J.

2013-03-13T23:59:59.000Z

197

In response to a lively discussion on agri-cultural spraying at the 2008 AirTAP Fall  

E-Print Network (OSTI)

contaminated if a chemical leak or spill during mixing or loading occurs. Minnesota has specific guidelines- gested that AirTAP, MCOA, the Minnesota Department of Transportation, and the MAAA work together

Minnesota, University of

198

Demonstrating Online Monitoring of Air Pollutant Photodegradation in a 3D Printed Gas-Phase Photocatalysis Reactor  

Science Journals Connector (OSTI)

We present a demonstration of online monitoring of gas-phase photocatalytic reactions. A cotton cloth impregnated with commercial titanium dioxide nanoparticles is used as a photocatalytic filter to clean air contaminated with a model pollutant. A fan ...

Bozhidar I. Stefanov; Delphine Lebrun; Andreas Mattsson; Claes G. Granqvist; Lars Österlund

2014-11-21T23:59:59.000Z

199

Cleaning Contaminated Water at Fukushima  

SciTech Connect

Crystalline Silico-Titanates (CSTs) are synthetic zeolites designed by Sandia National Laboratories scientists to selectively capture radioactive cesium and other group I metals. They are being used for cleanup of radiation-contaminated water at the Fukushima Daiichi nuclear power plant in Japan. Quick action by Sandia and its corporate partner UOP, A Honeywell Company, led to rapid licensing and deployment of the technology in Japan, where it continues to be used to clean up cesium contaminated water at the Fukushima power plant.

Rende, Dean; Nenoff, Tina

2013-11-21T23:59:59.000Z

200

JGI - Why Sequence Contaminated Groundwater?  

NLE Websites -- All DOE Office Websites (Extended Search)

Contaminated Groundwater? Contaminated Groundwater? Because the majority of microorganisms in nature have never been cultured, little is known about their genetic properties, biochemical functions, and metabolic characteristics. Although the sequence of the microbial community "genome" can now be determined with high-throughput sequencing technology, the complexity and magnitude of most microbial communities make meaningful data acquisition and interpretation difficult. Thus, the sequence determination of a groundwater microbial community with manageable diversity and complexity (~20 phylotypes) is a timely challenge. The samples for this project come from the Natural and Accelerated Bioremediation Research (NABIR) Field Research Center (FRC), Well FW-010. The overall objective is to provide a fundamental and comprehensive

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Cleaning Contaminated Water at Fukushima  

ScienceCinema (OSTI)

Crystalline Silico-Titanates (CSTs) are synthetic zeolites designed by Sandia National Laboratories scientists to selectively capture radioactive cesium and other group I metals. They are being used for cleanup of radiation-contaminated water at the Fukushima Daiichi nuclear power plant in Japan. Quick action by Sandia and its corporate partner UOP, A Honeywell Company, led to rapid licensing and deployment of the technology in Japan, where it continues to be used to clean up cesium contaminated water at the Fukushima power plant.

Rende, Dean; Nenoff, Tina

2014-02-26T23:59:59.000Z

202

Minimize Compressed Air Leaks  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

203

Effects of local microbial bioaugmentation and biostimulation on the bioremediation of total petroleum hydrocarbons (TPH) in crude oil contaminated soil based on laboratory and field observations  

Science Journals Connector (OSTI)

Abstract This study investigated factors enhancing the performance of the bioremediation of Total Petroleum Hydrocarbons (TPHs) in crude oil-contaminated soil in laboratory and field observations. The bioaugmentation process used local microbial consortia (MC1, MC2 and MC3) combined with the biostimulation processes of nutrient addition (mineral–salt medium, MSM and NPK) and enhanced air stimulation (air supply and Oxygen Releasing Compound (ORC™)). The microcosm tests were conducted in tank and soil column setups, whereas the field test was performed in test plots inside an oil and gas facility in Malaysia. In the microcosm tank experiment, the combination of bioaugmentation (10% inoculum size of MC3) and MSM biostimulation yielded the highest TPH degradation of 79% of the total. In the column experiments, the degradation of \\{TPHs\\} in the top soil was highest in columns combining bioaugmentation and nutrient addition, whereas in the bottom soil, the degradation of \\{TPHs\\} was highest in columns combining bioaugmentation with the addition of both nutrients and ORCs. In the field demonstration, 97% of the \\{TPHs\\} were degraded in the top soil (0–1 m) when bioaugmented with MC2. The kinetic analysis study of the microcosm tank showed that a combination of both biostimulation and bioaugmentation in the soil column achieved the fastest rate constant of 0.0390 day?1. The field test also demonstrated a comparable rate constant of 0.0339 day?1. The kinetic rate constants in both the laboratory and field indicated that the best treatment method for the contaminated site is a combination of MC3 bioaugmentation and nutrient biostimulation.

Fatihah Suja; Fazli Rahim; Mohd Raihan Taha; Nuraini Hambali; M. Rizal Razali; Alia Khalid; Ainon Hamzah

2014-01-01T23:59:59.000Z

204

Air Products effective way  

E-Print Network (OSTI)

PE O A e s a b O T A O ENNST Overview Air Products effective way standard me Departm Shipping has recently y of shipping eans. Air Pro ontainer that es of this pro onduct mark eep accelera eep the cost tilize widely a earch and m m visited Air er needs wer model was cr m approache ms

Demirel, Melik C.

205

Determining the Right Air Quality for Your Compressed Air System  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet outlines the main factors for determining the right air quality for compressed air systems.

206

Dust resuspension as a contaminant source and transport pathway  

SciTech Connect

Numerous environmental contaminants sorb to dust particles or exist as particles, including metals, hydrophobic organic compounds, asbestos, pollens, and microbial pathogens. Wind resuspension of dust and other particulate matter provides a dust source for the atmosphere and a contaminant transport pathway. Not only do these materials pose a risk to human health, but also, resuspended dust particles are believed to play a role in global climate change and chemical reactions in the atmosphere. The conditions under which contaminated sites are vulnerable to wind resuspension are not generally known, as the basic physics of the problem are poorly understood. Field data show tremendous variability. Conventional dust flux models assume that dust resuspension occurs only for high winds and then only temporarily, with a transient dust flux occurring only when the bed is first exposed to the high wind. The surface is then assumed to stabilize such that no further dust moves until the surface is disturbed or a higher wind occurs. Recent wind tunnel experiments demonstrate that surfaces yield continuous steady dust fluxes under steady wind conditions well beyond the initial high transient flux, even when no erosion is visible and the velocity is below the predicted threshold velocity for movement. This average steady-state dust flux increases with average wind speed. Ongoing work is investigating the influence of air relative humidity on these processes. Contaminant resuspension models capture trends only and fail to predict sporadic high flux events that may control doses. Successful modeling of contaminant resuspension will depend on development of better dust flux predictions. Risk analyses require better predictive modeling, necessitating a deeper understanding of the underlying phenomena.

Loosmore, G.A,; Hunt, J.R.

1999-07-01T23:59:59.000Z

207

GRR/Section 15-UT-a - Utah Air Permit Approval Order | Open Energy  

Open Energy Info (EERE)

5-UT-a - Utah Air Permit Approval Order 5-UT-a - Utah Air Permit Approval Order < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 15-UT-a - Utah Air Permit Approval Order 15UTAUtahAirPermitApprovalOrder.pdf Click to View Fullscreen Contact Agencies Utah Department of Environmental Quality Regulations & Policies UAC R307-300 UAC R307-400 Triggers None specified Click "Edit With Form" above to add content 15UTAUtahAirPermitApprovalOrder.pdf 15UTAUtahAirPermitApprovalOrder.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative The Utah Department of Environmental Quality Division of Air Quality (DEQ) issues permits for operations that emit contaminants into the air. Most new

208

UNDERWATER COATINGS FOR CONTAMINATION CONTROL  

SciTech Connect

The Idaho National Laboratory (INL) deactivated several aging nuclear fuel storage basins. Planners for this effort were greatly concerned that radioactive contamination present on the basin walls could become airborne as the sides of the basins became exposed during deactivation and allowed to dry after water removal. One way to control this airborne contamination was to fix the contamination in place while the pool walls were still submerged. There are many underwater coatings available on the market for marine, naval and other applications. A series of tests were run to determine whether the candidate underwater fixatives were easily applied and adhered well to the substrates (pool wall materials) found in INL fuel pools. Lab-scale experiments were conducted by applying fourteen different commercial underwater coatings to four substrate materials representative of the storage basin construction materials, and evaluating their performance. The coupons included bare concrete, epoxy painted concrete, epoxy painted carbon steel, and stainless steel. The evaluation criteria included ease of application, adherence to the four surfaces of interest, no change on water clarity or chemistry, non-hazardous in final applied form and be proven in underwater applications. A proprietary two-part, underwater epoxy owned by S. G. Pinney and Associates was selected from the underwater coatings tested for application to all four pools. Divers scrubbed loose contamination off the basin walls and floors using a ship hull scrubber and vacuumed up the sludge. The divers then applied the coating using a special powered roller with two separate heated hoses that allowed the epoxy to mix at the roller surface was used to eliminate pot time concerns. The walls were successfully coated and water was removed from the pools with no detectable airborne contamination releases.

Julia L. Tripp; Kip Archibald; Ann Marie Phillips; Joseph Campbell

2004-02-01T23:59:59.000Z

209

Development of Additive Manufacturing Technology  

Science Journals Connector (OSTI)

Additive Manufacturing (AM) technology came about as a ... of different technology sectors. Like with many manufacturing technologies, improvements in computing power and reduction...

Dr. Ian Gibson; Dr. David W. Rosen…

2010-01-01T23:59:59.000Z

210

Additive Manufacturing for Large Products.  

E-Print Network (OSTI)

?? This thesis researches the possibility and feasibility of applying additive manufacturing technology in the manufacturing of propellers. The thesis concerns the production at the… (more)

Leirvåg, Roar Nelissen

2013-01-01T23:59:59.000Z

211

Thin Air Breathing  

NLE Websites -- All DOE Office Websites (Extended Search)

Thin Air Breathing Thin Air Breathing Name: Amy Location: N/A Country: N/A Date: N/A Question: Why is it hard to breathe in thin air? What health dangers do mountain climbers face at high altitudes? Replies: Among the obvious dangers of losing ones footing, the oxygen available in the air is considerable less at higher altitudes. If I recall correctly, 21% of the atmosphere at standard temperature and pressure at sea level is composed of oxygen. This is less at higher altitudes. One can lose consciousness and even die in an oxygen deficient environment with changes from oxygen content to lower than 19.5%. This can unfortunate effect can occur within minutes. Dr. Myron The air is not really thin at high altitudes. The problem is that air pressure is lower. As altitude increases, air pressure decreases. In order for your lungs to fill with air, the air pressure in your lungs has to be less than the pressure of the air outside your lungs. Air moves from areas of higher pressure to lower pressure. As your diaphragm (the muscle that separates your chest cavity from your abdominal cavity) moves downward, the size of your chest cavity increases. This decreases the pressure in your chest and air flows in. When the diaphragm is up, it puts pressure on the chest cavity and the pressure in the lungs is greater than outside the lungs. Air flows out. This is an example of Boyle's Law. The movement of the diaphragm is controlled by the brainstem. Anyway-the reason that it is harder for some people to breathe at higher altitudes is that the air pressure differences aren't as great between the inside of the lungs and outside.

212

Nanoscale Additives Tailor Energetic Materials  

Science Journals Connector (OSTI)

Add to ACS ChemWorx ... The endothermic peak centered around 100 °C corresponds to the removal of water with a weight loss of 5.9%. ... The amorphous and rutile additives had little effect on the HTD weight loss profile, while anatase accelerated the HTD and reduced the completion temperature from 453 °C for pure AP to 423 °C with the additive. ...

David L. Reid; Antonio E. Russo; Rodolphe V. Carro; Matthew A. Stephens; Alexander R. LePage; Thomas C. Spalding; Eric L. Petersen; Sudipta Seal

2007-06-12T23:59:59.000Z

213

Emerging chemical contaminants in water and wastewater  

Science Journals Connector (OSTI)

...contaminants in water and wastewater' compiled and edited by Michael...contaminants in water and wastewater Michael R. Templeton 1...activated sludge process in wastewater treatment, whereby the pollutants...the impact on agricultural recycling. Disinfection by-products...

2009-01-01T23:59:59.000Z

214

Remediation of Mercury and Industrial Contaminants  

Energy.gov (U.S. Department of Energy (DOE))

The mission of the Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative is to control the flux of contaminants in soil and water environments for the purpose of...

215

Reliability and Consistency of Surface Contamination Measurements  

SciTech Connect

Surface contamination evaluation is a tough problem since it is difficult to isolate the radiations emitted by the surface, especially in a highly irradiating atmosphere. In that case the only possibility is to evaluate smearable (removeable) contamination since ex-situ countings are possible. Unfortunately, according to our experience at CEA, these values are not consistent and thus non relevant. In this study, we show, using in-situ Fourier Transform Infra Red spectrometry on contaminated metal samples, that fixed contamination seems to be chemisorbed and removeable contamination seems to be physisorbed. The distribution between fixed and removeable contamination appears to be variable. Chemical equilibria and reversible ion exchange mechanisms are involved and are closely linked to environmental conditions such as humidity and temperature. Measurements of smearable contamination only give an indication of the state of these equilibria between fixed and removeable contamination at the time and in the environmental conditions the measurements were made.

Rouppert, F.; Rivoallan, A.; Largeron, C.

2002-02-26T23:59:59.000Z

216

Emerging contaminants and microorganisms into the environment  

E-Print Network (OSTI)

Workshop Emerging contaminants and microorganisms into the environment: contamination pathways Environmental Engineering Division Surname _____________________Name____________________ Job Environmental Engineering Division (SEED) Department of Civil Engineering University of Salerno Via Ponte don

Costagliola, Gennaro

217

Webinar: NREL's Fuel Cell Contaminant Database | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

NREL's Fuel Cell Contaminant Database Webinar: NREL's Fuel Cell Contaminant Database Below is the text version of the webinar titled "NREL's Fuel Cell Contaminant Database,"...

218

Additional Information You can find additional information about  

E-Print Network (OSTI)

/default.htm For additional Information contact: Quality Assurance & Audit Coordinator at414-456-8844 or Research Subject are members of IRBs. All IRBs must follow federal rules and state laws in their review of research studies

219

Radiological Contamination Control Training for Laboratory Research  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3 of 3) 3 of 3) RADIOLOGICAL CONTAMINATION CONTROL TRAINING FOR LABORATORY RESEARCH Student's Guide Office of Environment, Safety & Health U.S. Department of Energy February 1997 DOE-HDBK-1106-97 ii This page intentionally left blank. DOE-HDBK-1106-97 iii Table of Contents Page TERMINAL OBJECTIVE............................................................................1 ENABLING OBJECTIVES...........................................................................1 I. RADIOLOGICAL CONTAMINATION................................................. 2 A. Comparison of Radiation and Radioactive Contamination ..................... 2 B. Types of Contamination.............................................................. 2

220

In situ combustion with metallic additives SUPRI TR 87  

SciTech Connect

In-situ combustion is the most energy efficient of the thermal oil recovery methods. In this process, a portion of a reservoir`s oil is burned in-situ as fuel to drive the recovery process. In light oil reservoirs, too little fuel may be deposited, making sustained combustion difficult. In heavy oil reservoirs, too much fuel may be deposited leading to high air injection requirements and unfavorable economics. This study has been designed to attack these problems. Water soluble metallic additives are investigated as agents to modify fuel deposition and combustion performance. This report describes seven combustion tube runs using two cradle oils and two metallic additives. The oils are 12{degrees} and 34{degrees} API, both from Cymric (California). The metallic additives tested are ionic nitrate (Fe(NO{sub 3}){sub 3}9H{sub 2}O) and zinc nitrate (Zn(NO{sub 3}){sub 2}6H{sub 2}O). Iron and tin additives improved the combustion efficiency in all cases. Fluctuations in the produced gas compositions were observed in all control runs, but nearly disappeared with the iron and tin additives. The combustion front velocities were also increased by iron and tin. Changes were also observed in the apparent hydrogen to carbon (H/C) ratio of the fuel, heat of combustion, air requirements, and amount of fuel deposited. Iron and tin caused increases in fuel concentration while causing a decrease in air requirement. The increase in fuel concentration varied between the oils, however, tin and iron were consistently more effective than zinc. A particularly interesting result occurred with the Cymric light oil. In the control runs, a sustained combustion front was not achieved, while in the iron additive runs, stable, sustained combustion was achieved. Iron and tin salts are suitable additives to increase fuel deposition when that is needed. Additives suitable for use as a fuel reducing agent have not yet been found. 26 refs., 23 figs, 6 tabs.

Holt, R.J.

1992-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

In situ combustion with metallic additives SUPRI TR 87  

SciTech Connect

In-situ combustion is the most energy efficient of the thermal oil recovery methods. In this process, a portion of a reservoir's oil is burned in-situ as fuel to drive the recovery process. In light oil reservoirs, too little fuel may be deposited, making sustained combustion difficult. In heavy oil reservoirs, too much fuel may be deposited leading to high air injection requirements and unfavorable economics. This study has been designed to attack these problems. Water soluble metallic additives are investigated as agents to modify fuel deposition and combustion performance. This report describes seven combustion tube runs using two cradle oils and two metallic additives. The oils are 12{degrees} and 34{degrees} API, both from Cymric (California). The metallic additives tested are ionic nitrate (Fe(NO{sub 3}){sub 3}9H{sub 2}O) and zinc nitrate (Zn(NO{sub 3}){sub 2}6H{sub 2}O). Iron and tin additives improved the combustion efficiency in all cases. Fluctuations in the produced gas compositions were observed in all control runs, but nearly disappeared with the iron and tin additives. The combustion front velocities were also increased by iron and tin. Changes were also observed in the apparent hydrogen to carbon (H/C) ratio of the fuel, heat of combustion, air requirements, and amount of fuel deposited. Iron and tin caused increases in fuel concentration while causing a decrease in air requirement. The increase in fuel concentration varied between the oils, however, tin and iron were consistently more effective than zinc. A particularly interesting result occurred with the Cymric light oil. In the control runs, a sustained combustion front was not achieved, while in the iron additive runs, stable, sustained combustion was achieved. Iron and tin salts are suitable additives to increase fuel deposition when that is needed. Additives suitable for use as a fuel reducing agent have not yet been found. 26 refs., 23 figs, 6 tabs.

Holt, R.J.

1992-07-01T23:59:59.000Z

222

Additional Resources | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Additional Resources Additional Resources Additional Resources October 16, 2013 - 4:36pm Addthis The following resources are focused on Federal new construction and major renovation projects, sustainable construction, and the role of renewable energy technologies in such facilities. These resources are organized by: Resource Guides Renewable Energy Planning Planning Construction Operations and Maintenance Commissioning Sample Plans and Documents Resource Guides Whole Building Design Guide (WBDG) WBDG: New Construction and Major Renovation Guiding Principles (WBDG) Leadership in Energy and Environmental Design (LEED) New Construction and Major Renovation Reference Guide Greening Federal Facilities: An Energy, Environmental, and Economic Resource Guide for Federal Facility Managers and Designers

223

Review of soil contamination guidance  

SciTech Connect

A review of existing and proposed radioactive soil contamination standards and guidance was conducted for United Nuclear Corporation (UNC), Office of Surplus Facilities Management. Information was obtained from both government agencies and other sources during a literature survey. The more applicable standards were reviewed, evaluated, and summarized. Information pertaining to soil contamination for both facility operation and facility decommissioning was obtained from a variety of sources. These sources included: the Code of Federal Regulations, regulatory guides, the Federal Register, topical reports written by various government agencies, topical reports written by national laboratories, and publications from the American National Standards Institute (ANSI). It was difficult to directly compare the standards and guidance obtained from these sources since each was intended for a specific situation and different units or bases were used. However, most of the information reviewed was consistent with the philosophy of maintaining exposures at levels as low as reasonably achievable (ALARA).

Mueller, M.A.; Kennedy, W.E. Jr.; Soldat, J.K.

1981-08-01T23:59:59.000Z

224

Laser Additive Manufacturing of Metals  

Science Journals Connector (OSTI)

Laser Additive Manufacturing (LAM) is based on a repeating layer wise manufacturing process which uses a laser beam to ... ) geometries into simpler two-dimensional (2D) manufacturing steps [1, 2...]. Thus LAM of...

Claus Emmelmann; Jannis Kranz; Dirk Herzog; Eric Wycisk

2013-01-01T23:59:59.000Z

225

Laser Additive Manufacturing in GE  

Science Journals Connector (OSTI)

There has been an increasing interest given to laser additive manufacturing (LAM) in recent years from across the global. GE has been one of the leading industries engaging in this...

Peng, Henry; Li, Yanmin; Guo, Rui; Wu, Zhiwei

226

Metal Additive Manufacturing: A Review  

Science Journals Connector (OSTI)

This paper reviews the state-of-the-art of an important, rapidly emerging, manufacturing technology that is alternatively called additive manufacturing (AM), direct digital manufacturing, free form fabrication, o...

William E. Frazier

2014-06-01T23:59:59.000Z

227

Compatibility of lubricant additives with HFC refrigerants and synthetic lubricants. Final report, Part 1  

SciTech Connect

Part one of this research provides manufacturers of components of air-conditioning and refrigeration equipment with a useful list of lubricant additives, sources, functional properties and chemical species. The list in part one is comprised of domestic lubricant additive suppliers and the results of a literature search that was specifically targeted for additives reported to be useful in polyolester chemistry.

Cavestri, R.C. [Imagination Resources, Inc., Dublin, OH (United States)

1997-07-01T23:59:59.000Z

228

Environmental Quality: Air (Louisiana)  

Energy.gov (U.S. Department of Energy (DOE))

The Department of Environmental Quality regulates air quality in Louisiana. The Department has an established a fee system for funding the monitoring, investigation and other activities required...

229

Air-Quality Regulations  

Science Journals Connector (OSTI)

n...Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

Jan W. Gooch

2011-01-01T23:59:59.000Z

230

Air-quality regulations  

Science Journals Connector (OSTI)

n....Federal, state and/or local regulations constructed for the purpose of protecting air quality, e.g., low volatile organic compounds...

2007-01-01T23:59:59.000Z

231

In situ removal of contamination from soil  

DOE Patents (OSTI)

A process of remediation of cationic heavy metal contamination from soil utilizes gas phase manipulation to inhibit biodegradation of a chelating agent that is used in an electrokinesis process to remove the contamination. The process also uses further gas phase manipulation to stimulate biodegradation of the chelating agent after the contamination has been removed. The process ensures that the chelating agent is not attacked by bioorganisms in the soil prior to removal of the contamination, and that the chelating agent does not remain as a new contaminant after the process is completed. 5 figs.

Lindgren, E.R.; Brady, P.V.

1997-10-14T23:59:59.000Z

232

Improving Compressed Air System Performance: A Sourcebook for Industry  

Energy.gov (U.S. Department of Energy (DOE))

This sourcebook is designed to provide compressed air system users with a reference that outlines opportunities for system performance improvements. It is not intended to be a comprehensive technical text on improving compressed air systems, but rather a document that makes compressed air system users aware of the performance improvement potential, details some of the significant opportunities, and directs users to additional sources of assistance.

233

Measure Guideline: Air Sealing Attics in Multifamily Buildings  

SciTech Connect

This Building America Measure Guideline is intended for owners, builders, contractors, homeowners, and other stakeholders in the multifamily building industry, and focuses on challenges found in existing buildings for a variety of housing types. It explains why air sealing is desirable, explores related health and safety issues, and identifies common air leakage points in multifamily building attics. In addition, it also gives an overview of materials and techniques typically used to perform air sealing work.

Otis, C.; Maxwell, S.

2012-06-01T23:59:59.000Z

234

Removing a small quantity of THT from gas storage groundwater through air stripping and gas-phase carbon adsorption  

SciTech Connect

This paper deals with the response to a case of contaminated groundwater located in France. The natural gas is stored during summer in porous underground rocks. When energy requirements increase (particularly in winter), gas is drawn off, but water is also pumped during this operation. The water has a strong characteristic odour of the TetraHydroThiophene (THT), which has been used by Gaz de France as an additive in order to detect gas leakages because of its strong odour. Unfortunately, the presence of THT in medium other than natural gas can be responsible for safety problems. Gas stripping combined with adsorption on granular activated carbon was chosen to obtain removal of THT from the groundwater. The gas to water ratio for stripping column is higher than usual and the gas used for stripping was recycled in order to prevent air pollution. Carbon consumption is approximately 3 tons a year. 8 refs., 5 figs., 2 tabs.

Girod, J.F.; Leclerc, J.P.; Muhr, H. [CNRS, Nancy (France)] [and others

1996-12-31T23:59:59.000Z

235

Ambient air monitoring for organic compounds, acids, and metals at Los Alamos National Laboratory, January 1991  

SciTech Connect

Los Alamos National Laboratory (LANL) contracted Radian Corporation (Radian) to conduct a short-term, intensive air monitoring program whose goal was to estimate the impact of chemical emissions from LANL on the ambient air environment. A comprehensive emission inventory had identified more than 600 potential air contaminants in LANL's emissions. A subset of specific target chemicals was selected for monitoring: 20 organic vapors, 6 metals and 5 inorganic acid vapors. These were measured at 5 ground level sampling sites around LANL over seven consecutive days in January 1991. The sampling and analytical strategy used a combination of EPA and NIOSH methods modified for ambient air applications.

Williams, C.H. (Radian Corp., Austin, TX (United States)); Eberhart, C.F. (Los Alamos National Lab., NM (United States))

1992-01-01T23:59:59.000Z

236

Ambient air monitoring for organic compounds, acids, and metals at Los Alamos National Laboratory, January 1991  

SciTech Connect

Los Alamos National Laboratory (LANL) contracted Radian Corporation (Radian) to conduct a short-term, intensive air monitoring program whose goal was to estimate the impact of chemical emissions from LANL on the ambient air environment. A comprehensive emission inventory had identified more than 600 potential air contaminants in LANL`s emissions. A subset of specific target chemicals was selected for monitoring: 20 organic vapors, 6 metals and 5 inorganic acid vapors. These were measured at 5 ground level sampling sites around LANL over seven consecutive days in January 1991. The sampling and analytical strategy used a combination of EPA and NIOSH methods modified for ambient air applications.

Williams, C.H. [Radian Corp., Austin, TX (United States); Eberhart, C.F. [Los Alamos National Lab., NM (United States)

1992-10-01T23:59:59.000Z

237

International MODIS and AIRS processing package: AIRS products and applications  

E-Print Network (OSTI)

International MODIS and AIRS processing package: AIRS products and applications Elisabeth Weisz presented and discussed in this paper demonstrate that the IMAPP AIRS retrieval product is rigorously parameters from the operational AIRS L2 product and data from other instruments. Keywords: AIRS, IMAPP

Li, Jun

238

Clean air act and National Ambient Air Quality Standards (NAAQS)  

E-Print Network (OSTI)

Clean air act and National Ambient Air Quality Standards (NAAQS) Ozone: Sources/Environmental Effects Particulates (PM): Sources/Environmental Effects #12;National Ambient Air Quality Standards (NAAQS) The Clean Air Act requires EPA to set National Ambient Air Quality Standards for pollutants considered

Weber, Rodney

239

Rapidly Equilibrating Micrometer Film Sampler for Priority Pollutants in Air  

Science Journals Connector (OSTI)

The results were used to calculate the average mass transfer coefficient (50.5 m/day) and generate contour maps that provide guidance in choosing an appropriate EVA sampler for a particular study based on film thickness, deployment time, and the log KOA of the anlayte. ... diffusion and was independent of wind velocity. ... The effect of outside wind speed on PUF disk sampling rates was evaluated by exposing polyurethane foam (PUF) disks to a PCB-contaminated air stream in a wind tunnel over air velocities 0-1.75 m/s. ...

Susan Genualdi; Tom Harner

2012-06-17T23:59:59.000Z

240

Hanford Site Tank 241-C-108 Residual Waste Contaminant Release Models and Supporting Data  

SciTech Connect

This report presents the results of laboratory characterization, testing, and analysis for a composite sample (designated 20578) of residual waste collected from single-shell tank C-108 during the waste retrieval process after modified sluicing. These studies were completed to characterize concentration and form of contaminant of interest in the residual waste; assess the leachability of contaminants from the solids; and develop release models for contaminants of interest. Because modified sluicing did not achieve 99% removal of the waste, it is expected that additional retrieval processing will take place. As a result, the sample analyzed here is not expected to represent final retrieval sample.

Cantrell, Kirk J.; Krupka, Kenneth M.; Geiszler, Keith N.; Arey, Bruce W.; Schaef, Herbert T.

2010-06-18T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Compressed Air System Optimization  

E-Print Network (OSTI)

Several years ago I went to a gas station and noticed that my car's tires were low on air. I saw the gas station had an air compressor, but it cost a quarter to use the compressor. I paid my quarter and used the compressor. I realized...

Aegerter, R.

242

Recirculating electric air filter  

DOE Patents (OSTI)

An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

243

Portable oven air circulator  

DOE Patents (OSTI)

A portable air circulating apparatus for use in cooking ovens which is used to create air currents in the oven which transfer heat to cooking foodstuffs to promote more rapid and more uniform cooking or baking, the apparatus including a motor, fan blade and housing of metallic materials selected from a class of heat resistant materials.

Jorgensen, Jorgen A. (Bloomington, MN); Nygren, Donald W. (Minneapolis, MN)

1983-01-01T23:59:59.000Z

244

11 - Ukraine: experience of radioactive waste (RAW) management and contaminated site clean-up  

Science Journals Connector (OSTI)

Abstract: A succinct description of the experience of radioactive waste management in Ukraine, which accumulated when using nuclear energy and developed as a result of the accident at Chernobyl nuclear power plant, is given in this chapter. In addition, the chapter summarizes the current state of the Chernobyl area contamination and the experience of Ukraine in decontamination and clean-up of the contaminated territories.

V. Shestopalov; I. Shybetskyi

2013-01-01T23:59:59.000Z

245

Additional Resources | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Services » Energy Assurance » Emergency Preparedness » Community Services » Energy Assurance » Emergency Preparedness » Community Guidelines » Additional Resources Additional Resources Additional Resources Energy Assurance Planning The Local Government Energy Assurance Planning (LEAP) program, developed by the Public Technology Institute and the U.S. Department of Energy, offers resources to help local governments of all sizes in developing energy assurance plans for their communities. U.S. Department of Energy, State and Local Energy Assurance Planning The National Association of State Energy Officials (NASEO) The National Association of Regulatory Utility Commissioners The National Response Framework Public Emergency Management Organizations U.S. Federal Emergency Management Agency (FEMA) FEMA disaster assistance State governor's office

246

Residential HVAC Indoor Air Quality(ASHRAE 62.2)  

E-Print Network (OSTI)

Residential HVAC && Indoor Air Quality(ASHRAE 62.2) Tav Commins #12;Contact Information · Energy construction, Additions /Alterations · Nonresidential and Residential #12;Residential HVAC && Indoor Air Quality(ASHRAE 62.2) ·HVAC EfficiencyHVAC Efficiency ·Quality Installation (HERS Measures) S li b HERS R t

247

Meeting the Air Leakage  

NLE Websites -- All DOE Office Websites (Extended Search)

Meeting the Air Leakage Meeting the Air Leakage Requirements of the 2012 IECC The U.S. Department of Energy (DOE) recognizes the enormous potential that exists for improving the energy efficiency, safety and comfort of homes. The newest edition of the International Energy Conservation Code ® (IECC) (2012) sets the bar higher for energy efficiency, and new air sealing requirements are one of the key new provisions. This guide is a resource for understanding the new air leakage requirements in the 2012 IECC and suggestions on how these new measures can be met. It also provides information from Building America's Air Sealing Guide, Best Practices and case studies on homes that are currently meeting the provisions. The 2012 IECC and a few International Residential Code (IRC) requirements are referenced throughout the guide.

248

The microenvironmental modelling approach to assess children's exposure to air pollution – A review  

Science Journals Connector (OSTI)

Abstract Exposures to a wide spectrum of air pollutants were associated to several effects on children's health. Exposure assessment can be used to establish where and how air pollutants' exposures occur. However, a realistic estimation of children's exposures to air pollution is usually a great ethics challenge, especially for young children, because they cannot intentionally be exposed to contaminants and according to Helsinki declaration, they are not old enough to make a decision on their participation. Additionally, using adult surrogates introduces bias, since time–space–activity patterns are different from those of children. From all the different available approaches for exposure assessment, the microenvironmental (ME) modelling (indirect approach, where personal exposures are estimated or predicted from microenvironment measurements combined with time–activity data) seemed to be the best to assess children's exposure to air pollution as it takes into account the varying levels of pollution to which an individual is exposed during the course of the day, it is faster and less expensive. Thus, this review aimed to explore the use of the ME modelling approach methodology to assess children's exposure to air pollution. To meet this goal, a total of 152 articles, published since 2002, were identified and titles and abstracts were scanned for relevance. After exclusions, 26 articles were fully reviewed and main characteristics were detailed, namely: (i) study design and outcomes, including location, study population, calendar time, pollutants analysed and purpose; and (ii) data collection, including time–activity patterns (methods of collection, record time and key elements) and pollution measurements (microenvironments, methods of collection and duration and time resolution). The reviewed studies were from different parts of the world, confirming the worldwide application, and mostly cross-sectional. Longitudinal studies were also found enhancing the applicability of this approach. The application of this methodology on children is different from that on adults because of data collection, namely the methods used for collecting time–activity patterns must be different and the time–activity patterns are itself different, which leads to select different microenvironments to the data collection of pollutants' concentrations. The most used methods to gather information on time–activity patterns were questionnaires and diaries, and the main microenvironments considered were home and school (indoors and outdoors). Although the ME modelling approach in studies to assess children’s exposure to air pollution is highly encouraged, a validation process is needed, due to the uncertainties associated with the application of this approach.

P.T.B.S. Branco; M.C.M. Alvim-Ferraz; F.G. Martins; S.I.V. Sousa

2014-01-01T23:59:59.000Z

249

Los Alamos racquetball contamination incident  

SciTech Connect

Several employees of the Los Alamos Plutonium Facility were found to have low levels of radioactivity on their hands and clothing when they arrived for work one morning. The initial concern was that the stringent contamination or material controls at the facility had failed, and that one or more of the employees had either accidentally or intentionally removed plutonium from the Laboratory premises. Fortunately, however, an investigation revealed that the source of the radioactivity was radon daughters electrostatically collected upon the surface of the racquetball and transferred by physical contact to the employees during an early morning racquetball game. This paper describes the events leading to the discovery of this phenomenon. 1 figure.

McAtee, J.L.; Stafford, R.G.; Dowdy, E.J.; Prestwood, R.J.

1985-01-01T23:59:59.000Z

250

Effect of Combustion Air Preheat on a Forged Furnace Productivity  

E-Print Network (OSTI)

to determine are the effects of combustion air preheat on four additional furnace operating characteristics. These characteristics are: (1) fuel utilization of a furnace operating cycle; (2) time to heat the furnace load; (3) scale production; and (4) furnace...

Ward, M. E.; Bohn, J.; Davis, S. R.; Knowles, D.

1984-01-01T23:59:59.000Z

251

Indoor airPLUS Version 1 (Rev. 01) Verification Checklist  

Energy.gov (U.S. Department of Energy (DOE))

The Rev. 01 checklist has been modified to reflect only the additional Indoor airPLUS requirements and their corresponding section numbers that must be met after completing the ENERGY STAR checklists.

252

Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles  

E-Print Network (OSTI)

Air Handling Unit Supply Air Temperature Optimization during Economizer Cycles Gang Wang, Zhan Wang, Ke Xu and Mingsheng Liu University of Nebraska – Lincoln Omaha, Nebraska, USA ABSTRACT Most air handling units (AHUs) in commercial...

Xu, K.; Liu, M.; Wang, G.; Wang, Z.

2007-01-01T23:59:59.000Z

253

Effect of contamination on the water separability of steam turbine oils  

SciTech Connect

The effect on water separability of three commercial steam turbine oils when contaminated with engine oil and/or a commercially available enhancement additive (designated as Additive X in this paper) for automotive lubricants was investigated. Additive X is an after-market lubricating oil supplement containing conventional crankcase type additives. All three oils showed degradation of water separability when contaminated with as little as 500 ppm (the ppm unit used through out this paper is ppm m/m.) of Additive X alone, as little as 500 ppm of engine oil alone, or 300 ppm of Additive X and 300 ppm of engine oil. It is speculated that the contamination affects water separability because of its calcium-based detergent component. The contamination at these levels in the steam turbine oil is not easily detected by trace metal analysis commonly used in rapid oil analysis programs. This is of concern because Additive X and engine oil are often used in industry to coat bearings during turbine generator maintenance. This study indicates that such practices could result in unsatisfactory water separation characteristics of the turbine oil. 3 refs., 2 figs., 6 tabs.

Li, Tsong-Dsu; Mansfield, J.M. [Texaco Port Arthur Research Lab., TX (United States)

1995-01-01T23:59:59.000Z

254

Desulfurization of Texas lignite using steam and air  

E-Print Network (OSTI)

in Coal Sulfur Removal From Coal By Pyrolysis EXPERIMENTAL METHOD Experimental Apparatus Experimental Procedure Analyses of the Products RESULTS AND DISCUSSION Temperature Effect Upon Desulfurization Pressure Effect Upon Desulfurization... . Treatment Composition Effect Pyrolysis Conditions vs. Addition of' Air V1 V111 ix 10 15 20 24 31 31 35 39 43 45 49 52 53 V11 TABLE OF CONTENTS (Continued) PAGE Pyrolysis Conditions vs. Addition of Steam and Air . . 53 Sulfur Removal...

Stone, Robert Reginald

1981-01-01T23:59:59.000Z

255

Air ejector augmented compressed air energy storage system  

DOE Patents (OSTI)

Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1980-01-01T23:59:59.000Z

256

Abatement of Air Pollution: Prohibition of Air Pollution (Connecticut)  

Energy.gov (U.S. Department of Energy (DOE))

All air pollution not otherwise covered by these regulations is prohibited. Stationary sources which cause air pollution must be operated in accordance with all applicable emissions standards and...

257

Dispersion models and air quality data for population exposure assessment to air pollution  

Science Journals Connector (OSTI)

Evaluating the extent of exposure to chemicals in absence of continuous measurements of their concentration in air and direct measures of personal exposure is crucial for epidemiological studies. Dispersion models can be a useful tool for reproducing spatio-temporal distribution of contaminants emitted by a specific source. However, they cannot easily be applied to short-term epidemiological studies because they require precise information on daily emission scenarios for a long time, which are generally not available. The aim of this study was to better assess the exposure in the industrial area of Brindisi, which suffers from various critical epidemiological situations, by integrating air pollution concentration data, emissions and model simulations concerning a specific point source. The results suggest that in the absence of direct exposure data and detailed information on specific pollutants associated to an emission, population exposure may be better assessed by taking into account proxy pollutants and the wind (direction and speed) as a potential health effects modifier.

Cristina Mangia; Marco Cervino; Emilio Antonio Luca Gianicolo

2014-01-01T23:59:59.000Z

258

Situ treatment of contaminated groundwater  

DOE Patents (OSTI)

A system for treating dissolved halogenated organic compounds in groundwater that relies upon electrolytically-generated hydrogen to chemically reduce the halogenated compounds in the presence of a suitable catalyst. A direct current is placed across at least a pair, or an array, of electrodes which are housed within groundwater wells so that hydrogen is generated at the cathode and oxygen at the anode. A pump is located within the well housing in which the cathode(s) is(are) located and draws in groundwater where it is hydrogenated via electrolysis, passes through a well-bore treatment unit, and then transported to the anode well(s) for reinjection into the ground. The well-bore treatment involves a permeable cylinder located in the well bore and containing a packed bed of catalyst material that facilitates the reductive dehalogenation of the halogenated organic compounds by hydrogen into environmentally benign species such as ethane and methane. Also, electro-osmatic transport of contaminants toward the cathode also contributes to contaminant mass removal. The only above ground equipment required are the transfer pipes and a direct circuit power supply for the electrodes. The electrode wells in an array may be used in pairs or one anode well may be used with a plurality of cathode wells. The DC current flow between electrode wells may be periodically reversed which controls the formation of mineral deposits in the alkaline cathode well-bore water, as well as to help rejuvenate the catalysis.

McNab, Jr., Walt W. (Concord, CA); Ruiz, Roberto (Tracy, CA); Pico, Tristan M. (Livermore, CA)

2001-01-01T23:59:59.000Z

259

Air Pollution and Health Effects  

Science Journals Connector (OSTI)

The quality of the air we breathe is still a major concern to human health. Notwithstanding the air pollution mitigation efforts that have been pursued since ... be attributed to the effects of urban outdoor air

Ana Isabel Miranda; Joana Valente…

2014-01-01T23:59:59.000Z

260

Air Quality (Nova Scotia, Canada)  

Energy.gov (U.S. Department of Energy (DOE))

Nova Scotia Environment is responsible for monitoring the air quality in the province, as well as administering fines and permits relating to air quality. The Air Quality Regulations state...

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Global air quality and climate  

E-Print Network (OSTI)

CRITICAL REVIEW Global air quality and climatewz Arlene M.determine regional air quality and can alter climate.to-continental scale air quality. Reducing the O 3 precursor

2012-01-01T23:59:59.000Z

262

Air heating system  

DOE Patents (OSTI)

A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

Primeau, John J. (19800 Seminole Rd., Euclid, OH 44117)

1983-03-01T23:59:59.000Z

263

Decommissioning of TA-21-153, a /sup 227/Ac contaminated old filter building  

SciTech Connect

An exhaust air filter building contaminated with /sup 227/Ac was decommissioned at the Los Alamos National Laboratory, Los Alamos, New Mexico, in 1978. The building was constructed in the late 1940s to clean exhaust air from several buildings at TA-21, DP Site. It was in service until March 1970. The project involved preliminary decontamination, dismantling the building, and burying the debris at an on-site waste disposal/storage area. This report presents the details on the decommissioning procedures, health physics, waste management, environmental surveillance, and costs for the operation.

Harper, J.R.; Garde, R.

1981-11-01T23:59:59.000Z

264

Combustion toxics: Available data and additional needs  

SciTech Connect

With the continuing expansion of air pollution regulations there is an increasing awareness of the potential need to assess the emissions and impact of trace compounds from combustion sources in refineries and chemical plants. It has been found that these trace compounds may be emitted as the result of incomplete fuel combustion, formation of new compounds during combustion, or the presence of inorganics (e.g., metals) in the fuel. Emission factors based on field data from these sources have recently been published by both the US Environmental Protection Agency (EPA) and the American Petroleum Institute (API). The emission factors indicate that a large number of trace compounds may be emitted from combustion sources including volatiles, semi-volatiles, PAHs, metals, and dioxins/furans. Some of these trace compounds have been classified as hazardous or toxic. A review of the EPA and API published data sets indicates that, while there is some overlap, many gaps exist in specific source and emission types. Where gaps exist, there is a lack of confirmation for the reported emission factor. Comparison of the EPA and API emission factors for gas and fuel oil fired boilers, however, indicates reasonable agreement for several metals and some PAHs where the data overlap. EPA, however, has sampled for many more metals than API and several EPA factors for PAHs are significantly higher than reported by API. Additionally tests may be warranted where there is insufficient overlap. Much additional work needs to be done to provide reliable factors which can be used to estimate trace toxic emissions from combustion. Many gaps and inconsistencies exist in the emission factors database and changes to existing factors are expected as the database is expanded.

Siegell, J.H.

2000-03-31T23:59:59.000Z

265

Maintaining System Air Quality | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maintaining System Air Quality Maintaining System Air Quality This tip sheet discusses how to maintain air quality in compressed air systems through proper use of equipment....

266

Compressed Air Systems | Department of Energy  

Energy Savers (EERE)

Maintenance Strategies for Compressed Air Systems Remove Condensate with Minimal Air Loss Stabilizing System Pressure Compressed Air Training Compressed Air Systems Tools...

267

Compressed Air Storage Strategies | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Storage Strategies Compressed Air Storage Strategies This tip sheet briefly discusses compressed air storage strategies. COMPRESSED AIR TIP SHEET 9 Compressed Air Storage...

268

Fuel additives: Excluding aviation fuels. (Latest citations from the NTIS bibliographic database). Published Search  

SciTech Connect

The bibliography contains citations concerning compositions, applications and performance of additives in fuels. Evaluations and environmental testing of additives in automotive, diesel, and boiler fuels are discussed. Additive effects on air pollution control, combustion stability, fuel economy and fuel storage are presented. Aviation fuel additives are covered in a separate bibliography. (Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-12-01T23:59:59.000Z

269

Fuel additives: Excluding aviation fuels. (Latest citations from the NTIS bibliographic database). Published Search  

SciTech Connect

The bibliography contains citations concerning compositions, applications and performance of additives in fuels. Evaluations and environmental testing of additives in automotive, diesel, and boiler fuels are discussed. Additive effects on air pollution control, combustion stability, fuel economy and fuel storage are presented. Aviation fuel additives are covered in a separate bibliography. (Contains a minimum of 231 citations and includes a subject term index and title list.)

NONE

1995-02-01T23:59:59.000Z

270

Multimedia contaminant environmental exposure assessment methodology as applied to Los Alamos, New Mexico  

SciTech Connect

The MCEA (Multimedia Contaminant Environmental Exposure Assessment) methodology assesses exposures to air, water, soil, and plants from contaminants released into the environment by simulating dominant mechanisms of contaminant migration and fate. The methodology encompasses five different pathways (i.e., atmospheric, terrestrial, overland, subsurface, and surface water) and combines them into a highly flexible tool. The flexibility of the MCEA methodology is demonstrated by encompassing two of the pathways (i.e., overland and surface water) into an effective tool for simulating the migration and fate of radionuclides released into the Los Alamos, New Mexico region. The study revealed that: (a) the /sup 239/Pu inventory in lower Los Alamos Canyon increased by approximately 1.1 times for the 50-y flood event; (b) the average contaminant /sup 239/Pu concentrations (i.e., weighted according to the depth of the respective bed layer) in lower Los Alamos Canyon for the 50-y flood event decreased by 5.4%; (c) approx. 27% of the total /sup 239/Pu contamination resuspended from the entire bed (based on the assumed cross sections) for the 50-y flood event originated from lower Pueblo Canyon; (d) an increase in the /sup 239/Pu contamination of the bed followed the general deposition patterns experienced by the sediment in Pueblo-lower Los Alamos Canyon; likewise, a decrease in the /sup 239/Pu contamination of the bed followed general sediment resuspension patterns in the canyon; (e) 55% of the /sup 239/Pu reaching the San Ildefonso Pueblo in lower Los Alamos Canyon originated from lower Los Alamos Canyon; and (f) 56% of the /sup 239/Pu contamination reaching the San Ildefonso Pueblo in lower Los Alamos Canyon was carried through towards the Rio Grande. 47 references, 41 figures, 29 tables.

Whelan, G.; Thompson, F.L.; Yabusaki, S.B.

1983-02-01T23:59:59.000Z

271

Biogeochemical Processes In Ethanol Stimulated Uranium Contaminated...  

NLE Websites -- All DOE Office Websites (Extended Search)

A laboratory incubation experiment was conducted with uranium contaminated subsurface sediment to assess the geochemical and microbial community response to ethanol amendment. A...

272

Air Quality Rules (North Carolina)  

Energy.gov (U.S. Department of Energy (DOE))

This is a comprehensive air quality rule for North Carolina that includes ambient air quality standards, emission control standards, monitoring and reporting requirements, and permitting procedures...

273

Surfactant-enhanced remediation of organic contaminated soil and water  

Science Journals Connector (OSTI)

Surfactant based remediation technologies for organic contaminated soil and water (groundwater or surface water) is of increasing importance recently. Surfactants are used to dramatically expedite the process, which in turn, may reduce the treatment time of a site compared to use of water alone. In fact, among the various available remediation technologies for organic contaminated sites, surfactant based process is one of the most innovative technologies. To enhance the application of surfactant based technologies for remediation of organic contaminated sites, it is very important to have a better understanding of the mechanisms involved in this process. This paper will provide an overview of the recent developments in the area of surfactant enhanced soil and groundwater remediation processes, focusing on (i) surfactant adsorption on soil, (ii) micellar solubilization of organic hydrocarbons, (iii) supersolubilization, (iv) density modified displacement, (v) degradation of organic hydrocarbon in presence surfactants, (vi) partitioning of surfactants onto soil and liquid organic phase, (vii) partitioning of contaminants onto soil, and (viii) removal of organics from soil in presence of surfactants. Surfactant adsorption on soil and/or sediment is an important step in this process as it results in surfactant loss reduced the availability of the surfactants for solubilization. At the same time, adsorbed surfactants will retained in the soil matrix, and may create other environmental problem. The biosurfactants are become promising in this application due to their environmentally friendly nature, nontoxic, low adsorption on to soil, and good solubilization efficiency. Effects of different parameters like the effect of electrolyte, pH, soil mineral and organic content, soil composition etc. on surfactant adsorption are discussed here. Micellar solubilization is also an important step for removal of organic contaminants from the soil matrix, especially for low aqueous solubility organic contaminants. Influences of different parameters such as single and mixed surfactant system, hydrophilic and hydrophobic chain length, HLB value, temperature, electrolyte, surfactant type that are very important in micellar solubilization are reviewed here. Microemulsion systems show higher capacity of organic hydrocarbons solubilization than the normal micellar system. In the case of biodegradation of organic hydrocarbons, the rate is very slow due to low water solubility and dissolution rate but the presence of surfactants may increase the bioavailability of hydrophobic compounds by solubilization and hence increases the degradation rate. In some cases the presence of it also reduces the rate. In addition to fundamental studies, some laboratory and field studies on removal of organics from contaminated soil are also reviewed to show the applicability of this technology.

Santanu Paria

2008-01-01T23:59:59.000Z

274

Padding with Compressed Air  

E-Print Network (OSTI)

We commonly find plants using padding to transport liquids or light solids short distances from tankers into storage tanks. Padding can wreck havoc in compressed air systems with limited storage, undersized cleanup equipment (dryers and filters...

Beals, C.

2004-01-01T23:59:59.000Z

275

Traffic air quality index  

Science Journals Connector (OSTI)

Abstract Vehicle emissions are responsible for a considerable share of urban air pollution concentrations. The traffic air quality index (TAQI) is proposed as a useful tool for evaluating air quality near roadways. The TAQI associates air quality with the equivalent emission from traffic sources and with street structure (roadway structure) as anthropogenic factors. The paper presents a method of determining the TAQI and defines the degrees of harmfulness of emitted pollution. It proposes a classification specifying a potential threat to human health based on the TAQI value and shows an example of calculating the TAQI value for real urban streets. It also considers the role that car traffic plays in creating a local UHI.

Zbigniew Bagie?ski

2015-01-01T23:59:59.000Z

276

The effects of beryllium additions on the oxidation of nickel aluminide and titanium aluminide based intermetallics  

SciTech Connect

The effects of Be additions on the oxidation behavior of {beta}-NiAl in moist air at 1,000 C and borderline alumina-forming {gamma} (TiAl) + Laves Ti-Al-Cr based alloys at 800 C and 1,000 C in dry and moist air were investigated. The addition of Be to {beta}-NiAl suppressed the formation of transient alumina, and resulted in the formation of a protective BeAl{sub 2}O{sub 4} spinel phase. In dry air, the addition of Be to the Ti-Al-Cr alloys also resulted in the formation of a protective BeAl{sub 2}O{sub 4} spinel phase. In moist air, only Ti-Al-Cr-Be alloys with a high Cr content (10 to 15 a/o) formed the protective BeAl{sub 2}O{sub 4} scale.

Hanrahan, R.J. Jr.; Chen, K.C. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.; Brady, M.P. [Oak Ridge National Lab., NM (United States). Metals and Ceramics Div.

1998-12-31T23:59:59.000Z

277

The effects of beryllium additions on the oxidation of nickel aluminide and titanium aluminide based intermetallics  

SciTech Connect

The effects of Be additions on the oxidation behavior of {beta}-NiAl in moist air at 1,000 C as well as on the borderline alumina-forming {gamma} + Laves Ti-Al-Cr based alloys at 800 C and 1,000 C in dry and moist air were investigated. The addition of Be to {beta}-NiAl suppressed the formation of transient alumina and resulted in the formation of a protective BeAl{sub 2}O{sub 4} spinel phase. In dry air, the addition of Be to the Ti-Al-Cr alloys also resulted in the formation of a protective BeAl{sub 2}O{sub 4} spinel phase. In moist air, only Ti-Al-Cr-Be alloys with a high Cr content (10 to 15 a/o) formed the protective BeAl{sub 2}O{sub 4} scale.

Hanrahan, R.J. Jr.; Chen, K.C. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.; Brady, M.P. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

1998-11-01T23:59:59.000Z

278

Ventilation Air Preconditioning Systems  

E-Print Network (OSTI)

Ventilation Air Preconditioning Systems Mukesh Khattar Michael J. Brandemuehl Manager, Space Conditioning and Refrigeration Associate Professor Customer Systems Group Joint Center for Energy Management Electric Power Research Institute Campus... costs, the small, modular nature of the system allows great flexibility for fitting into retrofit geometries and saves space in new construction. Moreover, a single chiller can serve multiple air-handling units-in stark contrast to packaged...

Khattar, M.; Brandemuehl, M. J.

1996-01-01T23:59:59.000Z

279

A Primer on Food Additives.  

E-Print Network (OSTI)

of their workers. The readers' loud reactions became a pow erful, moving force that helped persuade Con gress to pass the Pure Food and Drugs Act of 1906 as well as the Meat Inspection Act of the same year. The First Food Revolution Before the Civil War.... Factory conditions began to improve. Now that there was a law, complete with inspections and penalties for convicted transgressors, the food additive situation began to change, as did attitudes toward sanitation. The 1906 law de fined as adulterated...

Anonymous,

1979-01-01T23:59:59.000Z

280

Air Cooling | Open Energy Information  

Open Energy Info (EERE)

Cooling Cooling Jump to: navigation, search Dictionary.png Air Cooling: Air cooling is commonly defined as rejecting heat from an object by flowing air over the surface of the object, through means of convection. Air cooling requires that the air must be cooler than the object or surface from which it is expected to remove heat. This is due to the second law of thermodynamics, which states that heat will only move spontaneously from a hot reservoir (the heat sink) to a cold reservoir (the air). Other definitions:Wikipedia Reegle Air Cooling Air Cooling Diagram of Air Cooled Condenser designed by GEA Heat Exchangers Ltd. (http://www.gea-btt.com.cn/opencms/opencms/bttc/en/Products/Air_Cooled_Condenser.html) Air cooling is limited on ambient temperatures and typically require a

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Cast Stone Oxidation Front Evaluation: Preliminary Results For Samples Exposed To Moist Air  

SciTech Connect

The rate of oxidation is important to the long-term performance of reducing salt waste forms because the solubility of some contaminants, e.g., technetium, is a function of oxidation state. TcO{sub 4}{sup ?} in the salt solution is reduced to Tc(IV) and has been shown to react with ingredients in the waste form to precipitate low solubility sulfide and/or oxide phases. Upon exposure to oxygen, the compounds containing Tc(IV) oxidize to the pertechnetate ion, Tc(VII)O{sub 4}{sup ?}, which is very soluble. Consequently the rate of technetium oxidation front advancement into a monolith and the technetium leaching profile as a function of depth from an exposed surface are important to waste form performance and ground water concentration predictions. An approach for measuring contaminant oxidation rate (effective contaminant specific oxidation rate) based on leaching of select contaminants of concern is described in this report. In addition, the relationship between reduction capacity and contaminant oxidation is addressed. Chromate (Cr(VI) was used as a non-radioactive surrogate for pertechnetate, Tc(VII), in Cast Stone samples prepared with 5 M Simulant. Cast Stone spiked with pertechnetate was also prepared and tested. Depth discrete subsamples spiked with Cr were cut from Cast Stone exposed to Savannah River Site (SRS) outdoor ambient temperature fluctuations and moist air. Depth discrete subsamples spiked with Tc-99 were cut from Cast Stone exposed to laboratory ambient temperature fluctuations and moist air. Similar conditions are expected to be encountered in the Cast Stone curing container. The leachability of Cr and Tc-99 and the reduction capacities, measured by the Angus-Glasser method, were determined for each subsample as a function of depth from the exposed surface. The results obtained to date were focused on continued method development and are preliminary and apply to the sample composition and curing / exposure conditions described in this report. The Cr oxidation front (depth to which soluble Cr was detected) for the Cast Stone sample exposed for 68 days to ambient outdoor temperatures and humid air (total age of sample was 131 days) was determined to be about 35 mm below the top sample surface exposed. The Tc oxidation front, depth at which Tc was insoluble, was not determined. Interpretation of the results indicates that the oxidation front is at least 38 mm below the exposed surface. The sample used for this measurement was exposed to ambient laboratory conditions and humid air for 50 days. The total age of the sample was 98 days. Technetium appears to be more easily oxidized than Cr in the Cast Stone matrix. The oxidized forms of Tc and Cr are soluble and therefore leachable. Longer exposure times are required for both the Cr and Tc spiked samples to better interpret the rate of oxidation. Tc spiked subsamples need to be taken further from the exposed surface to better define and interpret the leachable Tc profile. Finally Tc(VII) reduction to Tc(IV) appears to occur relatively fast. Results demonstrated that about 95 percent of the Tc(VII) was reduced to Tc(IV) during the setting and very early stage setting for a Cast Stone sample cured 10 days. Additional testing at longer curing times is required to determine whether additional time is required to reduce 100 % of the Tc(VII) in Cast Stone or whether the Tc loading exceeded the ability of the waste form to reduce 100 % of the Tc(VII). Additional testing is required for samples cured for longer times. Depth discrete subsampling in a nitrogen glove box is also required to determine whether the 5 percent Tc extracted from the subsamples was the result of the sampling process which took place in air. Reduction capacity measurements (per the Angus-Glasser method) performed on depth discrete samples could not be correlated with the amount of chromium or technetium leached from the depth discrete subsamples or with the oxidation front inferred from soluble chromium and technetium (i.e., effective Cr and Tc oxidation fronts). Residual reduction capacity

Langton, C. A.; Almond, P. M.

2013-11-26T23:59:59.000Z

282

AIR SEALING Seal air leaks and save energy!  

E-Print Network (OSTI)

AIR SEALING Seal air leaks and save energy! W H A T I S A I R L E A K A G E ? Ventilation is fresh at stopping air leakage. It is critical to seal all holes and seams between these sheet goods with durable air that enters a house in a controlled manner to exhaust excess moisture and reduce odors

Oak Ridge National Laboratory

283

inAir: Sharing Indoor Air Quality Measurements and Visualizations  

E-Print Network (OSTI)

evidence has indicated that indoor air pollution within homes and other buildings can be worse than the outdoor air pollution in even the largest and most industrialized cities. For example, the California Air Resources Board estimates that indoor air pollutant levels are 25-62% greater than outside levels [4

Mankoff, Jennifer

284

Air Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference  

E-Print Network (OSTI)

permit regulations are designed to track, record, and control air pollutants belonging to severalAir Quality: Air Pollutants, SLAC Emissions Sources, and Regulatory Reference Department: Chemical on chemical classifications. This reference outlines major categories of air pollutants found at SLAC

Wechsler, Risa H.

285

Recommendation 212: Evaluate additional storage and disposal...  

Office of Environmental Management (EM)

212: Evaluate additional storage and disposal options Recommendation 212: Evaluate additional storage and disposal options The ORSSAB encourages DOE to evaluate additional storage...

286

Precision and Energy Usage for Additive Manufacturing  

E-Print Network (OSTI)

Sustainability of additive manufacturing: measuring theCommittee F42 on Additive Manufacturing Technologies," TheASTM Committee F42 on Additive Manufacturing Technologies. -

Clemon, Lee; Sudradjat, Anton; Jaquez, Maribel; Krishna, Aditya; Rammah, Marwan; Dornfeld, David

2013-01-01T23:59:59.000Z

287

Biomass 2014: Additional Speaker Biographies | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4: Additional Speaker Biographies Biomass 2014: Additional Speaker Biographies This document outlines the biographies of the additional speakers for Biomass 2014, held July 29-July...

288

Electrolytes - Advanced Electrolyte and Electrolyte Additives...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

and Electrolyte Additives Develop & evaluate materials & additives that enhance thermal & overcharge abuse Advanced Electrolyte Additives for PHEVEV Lithium-ion Battery...

289

Design of underwater superoleophobic TiO{sub 2} coatings with additional photo-induced self-cleaning properties by one-step route bio-inspired from fish scales  

SciTech Connect

Self-cleaning properties inspired by the structures and functions of some creatures are of great interest since the late 20th century. In this paper, TiO{sub 2} coatings with hierarchical rutile TiO{sub 2} flowers on fluorine-doped tin oxide substrate are fabricated through a simple one-step hydrothermal method. The flower-like coatings exhibit superhydrophilicity in air and superoleophobicity underwater with a contact angle as high as 157°, presenting good underwater self-cleaning performance. In addition, when contaminated by oleic acid, the as-prepared TiO{sub 2} coatings also exhibit excellent photocatalytic capability under ultraviolet irradiation, which demonstrated self-cleaning properties in a different way. This self-cleaning film provides a good strategy for some industrial and ocean applications.

Wang, Hao [Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials and Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Hubei University, Wuhan 430062 (China); Guo, Zhiguang, E-mail: zguo@licp.cas.cn [Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials and Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Hubei University, Wuhan 430062 (China); State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)

2014-05-05T23:59:59.000Z

290

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED INTO A DWELLING  

E-Print Network (OSTI)

PERFORMANCE EVALUATION OF AN AIR-TO-AIR HEAT PUMP COUPLED WITH TEMPERATE AIR-SOURCES INTEGRATED.peuportier@mines-paristech.fr, Tel.: +33 1 40 51 91 51 ABSTRACT An inverter-driven air-to-air heat pump model has been developped capacity air-to-air heat pump coupled with temperate air sources (crawlspace, attic, sunspace, heat

Paris-Sud XI, Université de

291

WASTE DISPOSAL WORKSHOPS: ANTHRAX CONTAMINATED WASTE  

E-Print Network (OSTI)

WASTE DISPOSAL WORKSHOPS: ANTHRAX CONTAMINATED WASTE January 2010 Prepared for the Interagency left intentionally blank.] #12;Prepared for the U.S. Department of Energy PNNL-SA-69994 under Contract DE-AC05-76RL01830 Waste Disposal Workshops: Anthrax-Contaminated Waste AM Lesperance JF Upton SL

292

Method of removing oxidized contaminants from water  

DOE Patents (OSTI)

The present invention is a method for removing oxidized contaminant(s) from water. More specifically, the invention has the steps of contacting water containing the oxidized contaminant(s) with a layered aluminosilicate having Fe(II). The aluminosilicate may contain naturally occurring Fe(II), or the Fe(II) may be produced by reducing Fe(III) that is initially present. Reduction may be either by exposure to a chemical or biological reductant. Contacting the water containing oxidized contaminant(s) may be by (1) injection of Fe(II)-containing layered aluminosilicate, via a well, into a saturated zone where it is likely to intercept the contaminated water; (2) injection of contaminated water into a vessel containing the Fe(II)-bearing layered aluminosilicate; and (3) first reducing Fe(III) in the layered aluminosilicate to Fe(II) by injection of a biological or chemical reductant, into an aquifer or vessel having sufficient Fe(III)-bearing aluminosilicate to produce the necessary Fe(II). 8 figs.

Amonette, J.E.; Fruchter, J.S.; Gorby, Y.A.; Cole, C.R.; Cantrell, K.J.; Kaplan, D.I.

1998-07-21T23:59:59.000Z

293

Method of removing oxidized contaminants from water  

DOE Patents (OSTI)

The present invention is a method for removing oxidized contaminant(s) from water. More specifically, the invention has the steps of contacting water containing the oxidized contaminant(s) with a layered aluminosilicate having Fe(II). The aluminosilicate may contain naturally occurring Fe(II), or the Fe(II) may be produced by reducing Fe(III) that is initially present. Reduction may be either by exposure to a chemical or biological reductant. Contacting the water containing oxidized contaminant(s) may be by (1) injection of Fe(II)-containing layered aluminosilicate, via a well, into a saturated zone where it is likely to intercept the contaminated water; (2) injection of contaminated water into a vessel containing the Fe(II)-bearing layered aluminosilicate; and (3) first reducing Fe(III) in the layered aluminosilicate to Fe(II) by injection of a biological or chemical reductant, into an aquifer or vessel having sufficient Fe(III)-bearing aluminosilicate to produce the necessary Fe(II).

Amonette, James E. (Richland, WA); Fruchter, Jonathan S. (Richland, WA); Gorby, Yuri A. (Richland, WA); Cole, Charles R. (West Richmond, WA); Cantrell, Kirk J. (West Richmond, WA); Kaplan, Daniel I. (Richland, WA)

1998-01-01T23:59:59.000Z

294

The Health Risks: Seafood Contamination, Harmful Algal  

E-Print Network (OSTI)

The Health Risks: Seafood Contamination, Harmful Algal Blooms and Polluted Beaches Seafood in shell- fish such as oysters, and accumula- tion of heavy metals, contaminants or biotoxins in seafood respiratory symptoms in people visiting beaches, marine mammal die-offs, shellfish closures, and seafood

295

Oxygen and Nitrogen Contamination During Arc Welding  

E-Print Network (OSTI)

) ) : ,- Oxygen and Nitrogen Contamination During Arc Welding T. W. Eagar Department of }faterials, mechanisms, and expected levels of oxygen and nitrogen contamination during gas tungsten arc, gas metal arc indicating the importance of dec9mposition of SiOz into silicon monoxide and oxygen are presented, indicating

Eagar, Thomas W.

296

Bioremediation of soil contaminated with hydrocarbons and heavy metals  

SciTech Connect

This investigation showed that a soil contaminated with petroleum hydrocarbons and heavy metals had sufficient indigenous microbial activity for hydrocarbon biodegradation under nonlimiting conditions. Nutrient supplementation with nitrogen and phosphate, together with aeration, seemed to be the most important factors for enhancing biodegradation. Hydrocarbon biodegradation occurred to a much greater extent under aerobic than under anaerobic conditions. Biodegradation did, however, induce low pH conditions and thus caused high heavy-metal concentrations in the leachate. Anaerobic conditions inhibited hydrocarbon biodegradation with no subsequent drop in pH and low heavy-metal concentrations in the leachate. Thus, anaerobic conditions were shown to facilitate less metal mobility than low pH conditions. Air sparging did not cause a significant increase in biodegradation. Adsorption of heavy-fraction hydrocarbons (> C{sub 20}) to microorganisms and colloidal material in the leachate was suspected of facilitating mobility of these fractions and thus their subsequent detection in the leachate.

Plessis, C.A. du; Phaal, C.B.; Senior, E. [Univ. of Natal, Scottsville (South Africa)

1995-12-31T23:59:59.000Z

297

Biosurfactants and increased bioavailability of sorbed organic contaminants: Measurements using a biosensor  

SciTech Connect

Bioremediation of sites contaminated with hydrophobic materials that sorb onto the soil matrix is very difficult due to reduced microbial (bio)availability. Following biosurfactant addition, we have measured an increase in contaminant bioavailability by using a lux biosensor. Direct microbial bioavailability was determined by using a genetically engineered microbial bioreporter strain of Pseudomonas putida. This strain was engineered so the lux genes, which code for light production, are transcriptionally fused with genes that code for contaminant degradation and are thus induced in the presence of specific compounds. By using a bioreporter we can quantify the actual microbial bioavailability of the contaminants and compare it to concentrations measured by other analytical methods (e.g. gas chromatograph). It is possible that these values are not equal to each other. Thus, bioremediation rates may not be accurately predicted if bioavailability is not considered.

Strong-Gunderson, J.M.; Palumbo, A.V. [Oak Ridge National Lab., TN (United States); Applegate, B.; Saylor, G.S. [Tennessee Univ., Knoxville, TN (United States)

1993-12-31T23:59:59.000Z

298

EMISSIONS TO AIR OPERATIONAL PROCEDURE  

E-Print Network (OSTI)

EMISSIONS TO AIR OPERATIONAL PROCEDURE Swansea University Estates Services Singleton Park Swansea to Air Department: Estates and Facilities Site: All Author: Ambreen Jahangir Approved by: Mark Durdin PURPOSE: To minimise emissions and discharges to air from boilers, fume cupboards, air conditioning

Harman, Neal.A.

299

Air Quality | Open Energy Information  

Open Energy Info (EERE)

Retrieved from "http:en.openei.orgwindex.php?titleAirQuality&oldid612070" Category: NEPA Resources...

300

Data Center Economizer Contamination and Humidity Study  

E-Print Network (OSTI)

and potential loss of humidity control. Concerns about equipment failure from airborne pollutants lead 42 #12;Executive Summary Data centers require continuous air conditioning to address high internal levels for computers. Air economizer cycles, which bring in large amounts of outside air to cool internal

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

The effects of metal and nutrient addition on Ribbed Mussels, Geukensia demissa, in the Great Sippewissett Salt Marsh and Eel Pond  

E-Print Network (OSTI)

the potential effects of nutrient loading and heavy metal pollution on salt marshes, researchers established highly contaminated with heavy metals. Nutrient additions did not promote or deter the health of mussels Marsh plots, perhaps a result of metal contamination. Keywords Salt marsh, nutrients, heavy metals

Vallino, Joseph J.

302

Chapter 30 - Air Pollution Control Technologies  

Science Journals Connector (OSTI)

Abstract This chapter describes numerous air pollution control devices and approaches to remove and treat particulate-phase and vapor-phase contaminants from a gas stream. Beginning with the removal of particulate matter, the various forces are described; i.e. gravity, buoyancy, drag, centrifugal and electrostatic forces, as well as molecular diffusion, and phoresis (thermal and diffusion-based). For removing gas-phase compounds, absorption and adsorption processes are described in detail. The physical and chemical mechanisms at work in gravitational settling, inertial impaction, electrostatic precipitation, filtration, and sorption are discussed in detail. Example calculations are provided, as well as expected problems and considerations needed prior to selecting a technology for a given pollutant stream.

Daniel Vallero

2014-01-01T23:59:59.000Z

303

Compressed air energy storage system  

DOE Patents (OSTI)

An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the power grid utilizing air obtained from the air storage reservoir together with combustible fuel. Preferably the internal combustion reciprocating engine is operated at high pressure and a low pressure turbine and compressor are also employed for air compression and power generation.

Ahrens, Frederick W. (Naperville, IL); Kartsounes, George T. (Naperville, IL)

1981-01-01T23:59:59.000Z

304

Optimization of surfactant-aided remediation of industrially contaminated soils  

SciTech Connect

Soil matrices contaminated with polycyclic aromatic hydrocarbons (PAHs) abound at the sites of coke-oven gas plants, refineries, and many other major chemical industries. The removal of PAHs from soil using pure water, via soil washing (ex situ) or soil flushing (in situ), is quite ineffective due to their low solubility and hydrophobicity. However, addition of suitable surfactant(s) has been shown to increase the removal efficiency several fold. For the present work, the removal of PAHs occurring in industrially contaminated soil was studied. The objective was to use a nonionic surfactant solution for in situ soil flushing and to evaluate the optimal range of process parameters that can significantly increase the removal efficiency. The process parameters chosen were surfactant concentration, ratio of washing solution volume to soil weight, and temperature of washing solution. These parameters were found to have a significant effect on PAH removal from the contaminated soil and an optimal range was determined for each parameter under given washing conditions.

Joshi, M.M.; Lee, S. [Univ. of Akron, OH (United States). Dept. of Chemical Engineering

1996-04-01T23:59:59.000Z

305

Air Charter Services  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

42.2 (April 2012) 42.2 (April 2012) 1 Documentation and Approval of Federally Funded International Travel (Fly America Act-Open Skies Agreement) Overview This section provides guidance to DOE Contracting Officers, Contracting Officer Representatives, and Program Officials on documentation and approval of federally funded international travel by Federal contractors and subcontractors in accordance with FAR 52.247-63 PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003), 49 U.S.C. §40118 (Fly America Act) and the Open Skies Agreements as amended. Background Contracts that include FAR clause 52.247-63, PREFERENCE FOR U.S.-FLAG AIR CARRIERS (JUNE 2003) as prescribed in FAR 47.405 require that, if available, the Contractor (and subcontractors), in performing work under the contract, shall use U.S.-flag air carriers for

306

Relationships between detoxifying enzymes in several snake species and the occurrence of these species in clean and pesticide-contaminated ecosystems  

E-Print Network (OSTI)

and the accumulation of residues of environmental contaminants were measured in snakes from highly contaminated and lightly contaminated eco-systems near College Station, Texas. The objectives of this study were to determine differences in detoxifying enzyme... fold and used without additional purification. Homogenates were usually used within an hour of preparation, but tests repeated after a weelc of storage in a freezer indicated that little activity was lost. The enzyme systems I measured in snake...

Stafford, Duane Paul

1973-01-01T23:59:59.000Z

307

Pasteurization of naturally contaminated water with solar energy.  

Science Journals Connector (OSTI)

...naturally contaminated water with solar energy. D A Ciochetti R H Metcalf A solar...investigate the potential of using solar energy to pasteurize naturally contaminated...naturally contaminated water with solar energy. | A solar box cooker (SBC...

D A Ciochetti; R H Metcalf

1984-02-01T23:59:59.000Z

308

Removal of Contaminants from Soils by Electric Fields  

Science Journals Connector (OSTI)

...CONTAMINANTS FROM GROUNDWATER, GROUND WATER MONITORING AND REMEDIATION 6 : 85 ( 1986 ). SEGALL...electrode pairs placed in the ground. The contaminants in a liquid...be classified as ubiquitous ground-water contaminants (7). These...

Ronald F. Probstein; R. Edwin Hicks

1993-04-23T23:59:59.000Z

309

Contaminant and genotoxicity profiles of sediments and zebra mussels as indicators of chemical contamination in Hamilton Harbour  

SciTech Connect

Samples of bottom sediments, suspended sediments and Zebra mussels were collected from Hamilton Harbour, an embayment of western Lake Ontario. In addition, sediment samples were collected from creeks which flow into the Harbour. These sediment samples were extracted with dichloromethane and the organic extract was cleaned up prior to analysis for PAH and thia-arenes by GC-MS. These extracts were also subjected to genotoxicity bioassays (Ames assays) in two strains of Salmonella typhimurium (a TA98-like strain, YG1024-S9 and a TA100-like strain, YG1025 + S9). The sediment and Zebra mussels samples collected near sites of heavy coal tar contamination showed PAH, thia-arene and genotoxicity profiles that are very similar to the corresponding profiles for coal tar. These observations are consistent with the resuspension and distribution of coal tar-contaminated bottom sediments in the water column. The sediment samples collected in a major creek entering the Harbor and the sediment and Zebra mussels samples collected in Windemere Arm near the mouth of this creek showed very different chemical and genotoxicity profiles. Thus, the chemical and genotoxicity burdens on Hamilton Harbour posed by the resuspension of coal tar-contaminated sediments and the inputs from urban activity into a major creek and the Harbor can be differentiated.

McCarry, B.E.; Allan, L.M.; Marvin, C.H.; Villella, J.; Bryant, D.W. [McMaster Univ., Hamilton, Ontario (Canada)

1995-12-31T23:59:59.000Z

310

Massachusetts Clean Air Act (Massachusetts)  

Energy.gov (U.S. Department of Energy (DOE))

The Act contains regulations to prevent the pollution and contamination of the atmosphere. The Act establishes a contiguous metropolitan pollution control district, comprised of towns in the...

311

Air and rain toxics deposition monitoring in Galveston Bay Texas  

SciTech Connect

In order to fulfill the mandates of the Great Waters Program and portions of the Clean Air Act Amendments of 1990, the Environmental Protection Agency (EPA) has initiated atmospheric monitoring research in important and representative water bodies, including coastal waters, for evidence of atmospheric deposition of pollutants. These pollutants include nutrients, trace metals, polynuclear aromatic hydrocarbons and PCBs. A site was established in Seabrook Texas on the western shore of Galveston Bay representative of southern, coastal water system. This study determines selected environmental pollutants of potential concern to Galveston Bay and other Gulf coastal waters. While information is currently being generated by other investigations in Galveston Bay, such as EPA EMAP, Galveston Bay National Estuary, NOAA Status and Trends and other programs on contaminants in sediments and organisms, little reliable data is available to assess atmospheric deposition. The importance of atmospheric deposition of contaminants to Galveston Bay, based on air and rain samples collected continuously from March 1995 to March 1996 will be presented and compared to the results from other Great Waters Program sites. These results are critical to the understanding of the relative importance of various contaminant inputs to Galveston Bay by estimating atmospheric depositional fluxes.

Wade, T.; Sweet, S.; Park, J.; Cifuentes, L.; Tindale, N.; Santschi, P.; Gill, G. [Texas A and M Univ., College Station, TX (United States). Coll. of Geosciences and Maritime Studies

1995-12-31T23:59:59.000Z

312

Sticking with air  

SciTech Connect

A decision to replace more than 300 aging damper actuators at Independence Plant in Newark, Arkensas forced Entergy to make a choice between pneumatic and electric actuator designs. The dampers route air flow through separate dedicated compartments to ensure proper firing of pulverised coal. The reasons that pneumatics was chosen are discussed in this article. 4 figs.

Coker, S.N. [Entergy (US). Independence Plant

2005-06-01T23:59:59.000Z

313

The air plasma spraying  

Science Journals Connector (OSTI)

The air plasma spraying is characterized by using of a compressed air as a plasma forming gas. Here is shown the application of benefits of the present technology compared with other spraying process. The creation of the present process was possible due to a reliable plasma torch and certain condition of heating and deposition of powder materials on a work. Plasma torch develops a power up to 50 kW and can work during 14 hours without replacement of a cathode and during 25 hours as for an anode what is acceptable for industrial application. When spraying of coatings a minimum waste of alloying elements is attained with slight increase of oxygen in coating which is comparable with argon plasma spraying in the open. In certain cases the air plasma spraying allows to obtain more perfect coatings and at high performance. The present method finds large application at restoration and strengthening of machine parts, at forming of components etc. The air plasma spraying provides high quality coatings at low cost of components.

Valery S. Klubnikin

1993-01-01T23:59:59.000Z

314

Canned Air in China  

E-Print Network (OSTI)

Broadcast Transcript: Not that long ago, coal smoke made the air here in Beijing so caustic that your nasal passages were seared with each breath. Those were the good old days: Car ownership was limited to government officials and the rest...

Hacker, Randi

2013-10-23T23:59:59.000Z

315

Handling and Packaging a Potentially Radiologically Contaminated Patient |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Handling and Packaging a Potentially Radiologically Contaminated Handling and Packaging a Potentially Radiologically Contaminated Patient Handling and Packaging a Potentially Radiologically Contaminated Patient The purpose of this procedure is to provide guidance to EMS care providers for properly handling and packaging potentially radiologically contaminated patients. This procedure applies to Emergency Medical Service care providers who respond to a radioactive material transportation incident that involves potentially contaminated injuries. Handling and Packaging a Potentially Radiologically Contaminated Patient.docx More Documents & Publications Pre-Hospital Practices for Handling a Radiologically Contaminated Patient Medical Examiner/Coroner on the Handling of a Body/Human Remains that are Potentially Radiologically Contaminated

316

Remediation of Mercury and Industrial Contaminants Applied Field...  

Office of Environmental Management (EM)

Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Remediation of Mercury and Industrial Contaminants Applied Field Research...

317

Accident Investigation of the August 21, 2012, Contamination...  

Office of Environmental Management (EM)

August 21, 2012, Contamination Incident at the Los Alamos Neutron Science Center at the Los Alamos National Laboratory Accident Investigation of the August 21, 2012, Contamination...

318

Microbial Reduction of Intragrain U(VI) in Contaminated Sediment...  

NLE Websites -- All DOE Office Websites (Extended Search)

Intragrain U(VI) in Contaminated Sediment. Microbial Reduction of Intragrain U(VI) in Contaminated Sediment. Abstract: The accessibility of precipitated, intragrain U(VI) in a...

319

Compressed Air 101: Getting Compressed Air to Work  

E-Print Network (OSTI)

"Air compressors are a significant industrial energy user. Based on a survey (conducted by Oregon State University and the Bonneville Power Administration) of energy audit reports from 125 plants, air compressors account for roughly 10% of total...

Burke, J. J.; Bessey, E. G.

320

Vermont Air Pollution Control Regulations, Ambient Air Quality Standards (Vermont)  

Energy.gov (U.S. Department of Energy (DOE))

The ambient air quality standards are based on the national ambient air quality standards. The Vermont standards are classified as primary and secondary standards and judged adequate to protect...

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Assessing air quality in Hong Kong: A proposed, revised air pollution index (API)  

Science Journals Connector (OSTI)

The Environment Protection Department of Hong Kong has been using an air pollution index (API) to report the status of ambient air quality since 1995. Such an index system was first developed by the USA Environmental Protection Authority. The API compares five main air pollutants, i.e. sulfur dioxide (SO2), respirable suspended particulates (RSP), nitrogen dioxide (NO2), carbon monoxide (CO) and Ozone (O3) as sub-indexes, which are calculated separately from a segmented linear function that transforms ambient pollutants concentrations into a normalized scale extending from 0 to 500. The resultant pollution level is described by the maximal value of these five sub-indexes. The limitation of this API system is that it considers only one pollutant with the maximum value at a time but reflects other pollutants concurrently. In this study, a revised air quality index (RAPI) is proposed based on the entropy function, which combines the effect of all pollutants on public health. The design of the revised index is based on database of air pollutants collected at two air quality monitoring stations in Hong Kong, i.e. a roadside station in Mong Kok and a general station in Sha Tin. Compared with the existing API, values of RAPI (calculated from data collected for API) at both stations are at higher levels and provide more information of levels of all pollutants. Therefore, RAPI should be representatively and widely used to provide the public with a better indicator of air quality. In addition, variations and oscillations of pollutants concentrations were also examined and the results show that RSP and NO2 contribute more to the overall pollution level than other components. It is suggested that more abatement strategies be focused on these pollutants to improve air quality in the future.

Wei-Zhen Lu; Hong-di He; Andrew Y.T. Leung

2011-01-01T23:59:59.000Z

322

Integrated Photo-Bioelectrochemical System for Contaminants Removal and Bioenergy Production  

E-Print Network (OSTI)

a long history, especially in removing nutrients, and provides additional services by usingIntegrated Photo-Bioelectrochemical System for Contaminants Removal and Bioenergy Production Li. This system achieves the simultaneous removal from a synthetic solution of organics (in the MFC) and nutrients

Berges, John A.

323

Public health assessment for Griffiss Air Force Base, Rome, Oneida County, New York, Region 2. Cerclis No. NY4571924451. Addendum. Final report  

SciTech Connect

The public health assessment addendum addresses the two public health issues identified at Griffiss Air Force Base by the Agency for Toxic Substances and Disease Registry (ATSDR): (1) exposures to contaminated fish from Three Mile and Six Mile Creeks, and (2) past exposures to contaminated groundwater through private wells off base. Frequent consumption of contaminated fish from Three Mile and Six Mile Creeks could pose a health problem. However, if NYSDOH fish consumption guidelines are followed, fish consumption should not present a public health hazard. ATSDR cannot evaluate exposures to contaminated groundwater through private well use prior to 1982 because there are no sampling data.

NONE

1996-09-09T23:59:59.000Z

324

Bioaugmentation of TNT-contaminated soil  

E-Print Network (OSTI)

Microbial transformation of trinitrotoluene (TNT) in phics. contaminated soil was investigated in this research. A Bacillus sp., isolated from soil obtained from an army ammunition facility, was used to enhance the rate of TNT removal over a 360 day...

Bokelmann, Annamarie

1999-01-01T23:59:59.000Z

325

Re-Emergence of Emerging Contaminants  

Science Journals Connector (OSTI)

Incredibly, these companies are exempt from scrutiny under the Safe Drinking Water Act by congressional edict in 2005, even though fracking wells penetrate through drinking water aquifers. ... Faulty well casings may allow direct contamination of aquifer units with these chemicals. ...

Jerald L. Schnoor

2014-09-12T23:59:59.000Z

326

Guide to treatment technology for contaminated soils  

SciTech Connect

This document is a guide for the screening of alternative treatment technologies for contaminated soils. The contents of this guide are organized into: 1. Introduction, II. Utilizing the table, III. Tables: Contamination Versus Technology, TV. Contaminant Waste Groups, and V. References. The four Contaminations Versus Technology tables are designed to identify the effectiveness and/or potential applicability of technologies to some or all compounds within specific waste groups. The tables also present limitations and special use considerations for the particular treatment technology. The phase of development of the technology is also included in the table. The phases are: Available, Innovative, and Emerging technologies. The technologies presented in this guide are organized according to the method of treatment. The four (4) treatment methods are Biological, Solidification/Stabilization, Thermal, and Chemical/Physical Treatment. There are several processing methods; some are well developed and proven, and others are in the development stage.

Tran, H.; Aylward, R.

1992-08-04T23:59:59.000Z

327

Cross-Contamination of Crops in Horticulture  

Science Journals Connector (OSTI)

Like cross-contamination, coexistence is not new to horticulture. However, the advent of GM crops ... very far, whereas canola-rapeseed pollen is light and can travel long distances. There is...

Prof. Dane Scott

2014-04-01T23:59:59.000Z

328

GIS Techniques for Mapping Groundwater Contamination Risk  

Science Journals Connector (OSTI)

The groundwater contamination risk map of a samplealluvial area was produced by using the IlwisGeographical Information System (GIS) to construct andto overlay thematic maps. The risk map has beenderived from the...

Daniela Ducci

1999-11-01T23:59:59.000Z

329

Estimating exposure of terrestrial wildlife to contaminants  

SciTech Connect

This report describes generalized models for the estimation of contaminant exposure experienced by wildlife on the Oak Ridge Reservation. The primary exposure pathway considered is oral ingestion, e.g. the consumption of contaminated food, water, or soil. Exposure through dermal absorption and inhalation are special cases and are not considered hereIN. Because wildlife mobile and generally consume diverse diets and because environmental contamination is not spatial homogeneous, factors to account for variation in diet, movement, and contaminant distribution have been incorporated into the models. To facilitate the use and application of the models, life history parameters necessary to estimate exposure are summarized for 15 common wildlife species. Finally, to display the application of the models, exposure estimates were calculated for four species using data from a source operable unit on the Oak Ridge Reservation.

Sample, B.E.; Suter, G.W. II

1994-09-01T23:59:59.000Z

330

Assessment of Remedial Actions for Contaminated Sites  

Science Journals Connector (OSTI)

During the investigation in the field of remedial actions on contaminated land, an appropriate concept ... site, an evaluation of the existing alternative remedial techniques is necessary. The comparative evaluat...

Th. Neteler; H. L. Jessberger

1993-01-01T23:59:59.000Z

331

Contaminated Aquatic Ecosystems Restoration: A Case Study  

Science Journals Connector (OSTI)

We use Decision Analysis methods to rank intervention strategies after contamination by radionuclides of an aquatic ecosystem. We assume certainty since the validation of models used to quantify impacts of cou...

E. Gallego; S. Ríos-Insua; A. Mateos; D. Ríos Insua

1998-01-01T23:59:59.000Z

332

Faculty Position in Mechanical Engineering Additive Manufacturing  

E-Print Network (OSTI)

Faculty Position in Mechanical Engineering Additive Manufacturing University of Kansas of additive manufacturing. Exceptional candidates with outstanding qualifications could be considered using additive manufacturing in applications such as, but not limited to the net shape manufacture of

333

Environmental Pollution Air Pollution Dispersion Practical Air Pollution Dispersion  

E-Print Network (OSTI)

Environmental Pollution Air Pollution Dispersion 1 of 5 Practical ­ Air Pollution Dispersion in the lectures how such models can be used to explain observed concentrations of air pollutants in an area and to test `what-if' scenarios for pollution control and reduction. You will use the Gaussian Plume Model

Moncrieff, John B.

334

Treatment options for low-level radiologically contaminated ORNL filtercake  

SciTech Connect

Water softening sludge (>4000 stored low level contaminated drums; 600 drums per year) generated by the ORNL Process Waste Treatment Plant must be treated, stabilized, and placed in safe storage/disposal. The sludge is primarily CaCO{sub 3} and is contaminated by low levels of {sup 90}Sr and {sup 137}Cs. In this study, microwave sintering and calcination were evaluated for treating the sludge. The microwave melting experiments showed promise: volume reductions were significant (3-5X), and the waste form was durable with glass additives (LiOH, fly ash). A commercial vendor using surrogate has demonstrated a melt mineralization process that yields a dense monolithic waste form with a volume reduction factor (VR) of 7.7. Calcination of the sludge at 850-900 C yielded a VR of 2.5. Compaction at 4500 psi increased the VR to 4.2, but the compressed form is not dimensionally stable. Addition of paraffin helped consolidate fines and yielded a VR of 3.5. In conclusion, microwave melting or another form of vitrification is likely to be the best method; however for immediate implementation, the calculation/compaction/waxing process is viable.

Lee, Hom-Ti [Oak Ridge Associated Universities, Inc., TN (United States); Bostick, W.D. [Oak Ridge K-25 Site, TN (United States)

1996-04-01T23:59:59.000Z

335

Sitewide feasibility study Eielson Air Force Base, Alaska  

SciTech Connect

The Sitewide Feasibility Study (FS) is required under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the National Contingency Plan (NCP), and the Federal Facility Agreement (FFA) for Eielson Air Force Base (AFB). It is based on findings presented in the Sitewide Remedial Investigation (RI) Report (USAF 1995a), and the Sitewide Baseline Risk Assessment (BLRA) Report (USAF 1995b). Under the FFA, 64 potential source areas were placed in one of six operable units, based on similar contaminant and environmental characteristics, or were included for evaluation under a Source Evaluation Report (SER). The sitewide RI was directed at contamination that was not confined to an operable unit (OU) or SER source area. The objectives of the sitewide RI were to: Provide information about site characteristics to support individual OU RI/FS efforts and the sitewide RI/FS, including site hydrogeology and determination of background soil and groundwater characteristics; identify and characterize contamination that is not confined or attributable to a specific source area through sitewide monitoring of groundwater and surface water; evaluate cumulative risks to human health and the environment from contamination on a sitewide basis; and provide a mechanism for continued cohesive sitewide monitoring.

Last, G.V.; Lanigan, D.C.; Josephson, G.B.; Bagaasen, L.M.

1995-09-01T23:59:59.000Z

336

A petroleum contaminated soil bioremediation facility  

SciTech Connect

The amount of petroleum contaminated soil (PCS) at the Savannah River site (SRS) that has been identified, excavated and is currently in storage has increased several fold during the last few years. Several factors have contributed to this problem: (1) South Carolina Department of Health ad Environmental control (SCDHEC) lowered the sanitary landfill maximum concentration for total petroleum hydrocarbons (TPH) in the soil from 500 to 100 parts per million (ppm), (2) removal and replacement of underground storage tanks at several sites, (3) most recently SCDHEC disallowed aeration for treatment of contaminated soil, and (4) discovery of several very large contaminated areas of soil associated with leaking underground storage tanks (LUST), leaking pipes, disposal areas, and spills. Thus, SRS has an urgent need to remediate large quantities of contaminated soil that are currently stockpiled and the anticipated contaminated soils to be generated from accidental spills. As long as we utilize petroleum based compounds at the site, we will continue to generate contaminated soil that will require remediation.

Lombard, K.; Hazen, T.

1994-06-01T23:59:59.000Z

337

Additional Guidance Regarding Application of Current Procedures...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Additional Guidance Regarding Application of Current Procedures for Testing Energy Consumption of Clothes Washers with Warm Rinse Cycles, Issued: June 30, 2010 Additional Guidance...

338

Electrolytes - Advanced Electrolyte and Electrolyte Additives  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

program to develop additives for increased cycle, calendar life, and safety Develop advanced quantum chemical models to understand and predict functional additives that form...

339

Air Conditioning | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Conditioning Conditioning Air Conditioning July 1, 2012 - 6:28pm Addthis Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard Air conditioners cost U.S. homeowners more than $11 billion each year, and regular maintenance can keep your air conditioner running efficiently. | Photo courtesy of ©iStockphoto/JaniceRichard How does it work? An air conditioner uses energy -- usually electricity -- to transfer heat from the interior of your home to the relatively warm outside environment. Two-thirds of all homes in the United States have air conditioners. Air conditioners use about 5% of all the electricity produced in the United States, at an annual cost of more than $11 billion to homeowners. As a

340

Louisiana Air Control Law (Louisiana)  

Energy.gov (U.S. Department of Energy (DOE))

This law states regulations for air quality control and states the powers and duties of the secretary of environmental quality. It provides information about permits and licenses, air quality...

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Air Pollution Indicator: PM10  

Science Journals Connector (OSTI)

As one of natural elements, clean air is essential to human beings’ survival. ... , almost all economic and social activities emit air pollutants, especially such sectors as power and ... and international commun...

Hezhong Tian; Yimeng Liu

2014-01-01T23:59:59.000Z

342

Air Liquide- Biogas & Fuel Cells  

Energy.gov (U.S. Department of Energy (DOE))

Presentation about Air Liquide's biogas technologies and integration with fuel cells. Presented by Charlie Anderson, Air Liquide, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

343

Solar Heating and Air Conditioning  

Science Journals Connector (OSTI)

...given of the status of solar fired air conditioning...to an approach to cool storage in solar air conditioning systems...an assessment of cool storage for reducing peak electrical...rolling cylinder thermal energy storage device for compact...

1980-01-01T23:59:59.000Z

344

Compressed Air Audits using AIRMaster  

E-Print Network (OSTI)

Air compressors are a significant industrial energy user and therefore a prime target for industrial energy audits. The project goal was to develop a software tool, AIRMaster, and supporting methodology for performing compressed air system audits...

Wheeler, G. M.; McGill, R. D.; Bessey, E. G.; Vischer, K.

345

Fundamentals of Compressed Air Systems  

Energy.gov (U.S. Department of Energy (DOE))

Find out how a compressed air system works and the benefits of optimal compressed air system performance. This initial class demonstrates how to compute the current cost of your plant's compressed...

346

Roadway tunnel air quality models  

Science Journals Connector (OSTI)

Roadway tunnel air quality models ... Analysis of 13 tunnel studies quantifies the decline since 1961 in benzo[a]pyrene emitted into the air per km of travel by U.S. road vehicles. ...

Tai Y. Chang; Sara J. Rudy

1990-05-01T23:59:59.000Z

347

Factors impacting contaminant body burdens and contaminant effects at different trophic levels in an estuarine ecosystem.  

E-Print Network (OSTI)

??Organic contaminants continue to enter coastal ecosystems, creating stress for animals that inhabit these areas. A variety of factors such as land use, climate, and… (more)

Hopper, Tiffany L.

2013-01-01T23:59:59.000Z

348

Compressed Air System Control Strategies  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet briefly discusses compressed air system control strategies as a means to improving and maintaining system performance.

349

Compressed Air Energy Storage System  

E-Print Network (OSTI)

/expanders are crucial for the economical viability of a Compressed Air Energy Storage (CAES) system such as the

Farzad A. Shirazi; Mohsen Saadat; Bo Yan; Perry Y. Li; Terry W. Simon

350

Analyzing Your Compressed Air System  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet outlines the process to analyze industrial compressed air systems and ensure proper system configuration.

351

Air Leaks in Unexpected Places  

Energy.gov (U.S. Department of Energy (DOE))

Sealing air leaks will help to decrease heating and cooling costs and make your home more comfortable.

352

AIR QUALITY REPORT SPARKS CONTROVERSY  

Science Journals Connector (OSTI)

AIR QUALITY REPORT SPARKS CONTROVERSY ... The National Commission on Air Quality delivered its eagerly awaited report to Congress today, and reaction from industry and environmental groups is expected to be both swift and sharp. ... Created under the 1977 Clean Air Act, the commission was charged with assessing the effectiveness of the law, and recommending changes where the law falls short of achieving the goal of improving the nation's air quality. ...

1981-03-02T23:59:59.000Z

353

Air-Lift design theory  

Science Journals Connector (OSTI)

1. Employing graphical relationships between height of lift of the emulsion, depth of shaft, and specific air ra...

P. R. Khlopenkov

1970-10-01T23:59:59.000Z

354

Alternative Fuels Data Center: Latest Additions  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Publications » Latest Additions Publications » Latest Additions Printable Version Share this resource Send a link to Alternative Fuels Data Center: Latest Additions to someone by E-mail Share Alternative Fuels Data Center: Latest Additions on Facebook Tweet about Alternative Fuels Data Center: Latest Additions on Twitter Bookmark Alternative Fuels Data Center: Latest Additions on Google Bookmark Alternative Fuels Data Center: Latest Additions on Delicious Rank Alternative Fuels Data Center: Latest Additions on Digg Find More places to share Alternative Fuels Data Center: Latest Additions on AddThis.com... Latest Additions Browse the latest additions to the publications database for current information about alternative transportation. December 2013 Clean Cities 2012 Annual Metrics Report Clean Cities Alternative Fuel Price Report, October, 2013

355

FLUIDIC: Metal Air Recharged  

SciTech Connect

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-03-07T23:59:59.000Z

356

FLUIDIC: Metal Air Recharged  

ScienceCinema (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-04-02T23:59:59.000Z

357

Decontamination formulation with additive for enhanced mold remediation  

DOE Patents (OSTI)

Decontamination formulations with an additive for enhancing mold remediation. The formulations include a solubilizing agent (e.g., a cationic surfactant), a reactive compound (e.g., hydrogen peroxide), a carbonate or bicarbonate salt, a water-soluble bleaching activator (e.g., propylene glycol diacetate or glycerol diacetate), a mold remediation enhancer containing Fe or Mn, and water. The concentration of Fe.sup.2+ or Mn.sup.2+ ions in the aqueous mixture is in the range of about 0.0001% to about 0.001%. The enhanced formulations can be delivered, for example, as a foam, spray, liquid, fog, mist, or aerosol for neutralization of chemical compounds, and for killing certain biological compounds or agents and mold spores, on contaminated surfaces and materials.

Tucker, Mark D. (Albuquerque, NM); Irvine, Kevin (Huntsville, AL); Berger, Paul (Rome, NY); Comstock, Robert (Bel Air, MD)

2010-02-16T23:59:59.000Z

358

Air Pollution & Health in Rapidly Developing Countries  

E-Print Network (OSTI)

For example, “Air Pollution and Health – Studies in theAssessment of Air Pollution and Health” is illustrative inReview: Air Pollution & Health in Rapidly Developing

Bucher, Scott

2005-01-01T23:59:59.000Z

359

California Air Resources Board | Open Energy Information  

Open Energy Info (EERE)

Air Resources Board Jump to: navigation, search Logo: California Air Resources Board Name: California Air Resources Board Place: Sacramento, California Website: http:...

360

113 air quality control station [n  

Science Journals Connector (OSTI)

envir. (Facility for measurement of air pollution; ? air quality network/system );s estación [f] de medición de la calidad del aire (? red de ev...

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

ORIGINAL ARTICLE Ambient Air Pollution  

E-Print Network (OSTI)

supporting an association between am- bient air pollution and cardiovascular health, much re- mains health effects of ambient air pollution in Atlanta being undertaken by this Emory investi- gative teamORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico

Mulholland, James A.

362

Out of Bounds Additive Manufacturing Christopher  

E-Print Network (OSTI)

#12;Out of Bounds Additive Manufacturing Christopher Holshouser, Clint Newell, and Sid Palas, Tenn. The Big Area Additive Manufacturing system has the potential to manufacture parts completely) are working on an additive manufacturing (AM) system (Big Area Additive Manufacturing, or BAAM) capable

Pennycook, Steve

363

Method of producing hydrogen, and rendering a contaminated biomass inert  

DOE Patents (OSTI)

A method for rendering a contaminated biomass inert includes providing a first composition, providing a second composition, reacting the first and second compositions together to form an alkaline hydroxide, providing a contaminated biomass feedstock and reacting the alkaline hydroxide with the contaminated biomass feedstock to render the contaminated biomass feedstock inert and further producing hydrogen gas, and a byproduct that includes the first composition.

Bingham, Dennis N. (Idaho Falls, ID) [Idaho Falls, ID; Klingler, Kerry M. (Idaho Falls, ID) [Idaho Falls, ID; Wilding, Bruce M. (Idaho Falls, ID) [Idaho Falls, ID

2010-02-23T23:59:59.000Z

364

Handling and Packaging a Potentially Radiologically Contaminated Patient |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Handling and Packaging a Potentially Radiologically Contaminated Handling and Packaging a Potentially Radiologically Contaminated Patient Handling and Packaging a Potentially Radiologically Contaminated Patient The purpose of this procedure is to provide guidance to EMS care providers for properly handling and packaging potentially radiologically contaminated patients. This procedure applies to Emergency Medical Service care providers who respond to a radioactive material transportation incident that involves potentially contaminated injuries. Handling and Packaging a Potentially Radiologically Contaminated Patient.docx More Documents & Publications Pre-Hospital Practices for Handling a Radiologically Contaminated Patient Emergency Response to a Transportation Accident Involving Radioactive Material Radioactive Materials Transportation and Incident Response

365

Air Risk Information Support Center  

SciTech Connect

The Air Risk Information Support Center (Air RISC) was initiated in early 1988 by the US Environmental Protection Agency`s (EPA) Office of Health and Environmental Assessment (OHEA) and the Office of Air Quality Planning and Standards (OAQPS) as a technology transfer effort that would focus on providing information to state and local environmental agencies and to EPA Regional Offices in the areas of health, risk, and exposure assessment for toxic air pollutants. Technical information is fostered and disseminated by Air RISCs three primary activities: (1) a {open_quotes}hotline{close_quotes}, (2) quick turn-around technical assistance projects, and (3) general technical guidance projects. 1 ref., 2 figs.

Shoaf, C.R.; Guth, D.J. [Environmental Protection Agency, Washington, DC (United States)

1990-12-31T23:59:59.000Z

366

High-rate HMDSO-based coatings in open air using atmospheric-pressure plasma jet  

Science Journals Connector (OSTI)

This work deals with the high-rate and dust-free formation of carbon-containing silicon oxide (SiOC) coatings in open air without substrate heating using an atmospheric-pressure (AP) plasma jet. The AP plasma was excited by a 13.56-MHz radio frequency (RF) power. Hexamethyldisiloxane and oxygen (O2) were used as the source gases. By optimizing the O2 flow rate and RF power, SiOC films were readily fabricated at deposition rates higher than 100 nm/s without suffering from particulate contaminations of the film surface. Additionally, an inorganic SiO2-like film exhibiting O/Si atomic ratio of approximately 2 was obtained at a deposition rate of ~ 13 nm/s, the value of which is still greater than those obtained in other AP plasma sources. Further systematic studies are needed to see if good-quality inorganic SiO2-like films can be obtained with higher rates.

H. Kakiuchi; K. Higashida; T. Shibata; H. Ohmi; T. Yamada; K. Yasutake

2012-01-01T23:59:59.000Z

367

Superfund record of decision (EPA Region 1): Otis Air National Guard (USAF), Operable Unit 3, Falmouth, MA, September 30, 1998  

SciTech Connect

The Massachusetts Military Reservation (MMR) on Cape Cod, Massachusetts, lies within the boundaries of the towns of Falmouth, Mashpee, Sandwich, and Bourne. The Area of Contamination (AOC) known as Chemical Spill 3 United States Coast Guard (CS-3 (USCG)) is located on Lee Road, in the south central portion of the MMR. The Air Force Center for Environmental Excellence (AFCEE) Installation Restoration Program Office at Otis Air National Guard (ANG) Base, Massachusetts.

NONE

1999-03-01T23:59:59.000Z

368

Urban and Regional Air Quality  

NLE Websites -- All DOE Office Websites (Extended Search)

equipment equipment Urban and Regional Air Quality Research in this area is concerned with regional air quality issues such as: Controlling nitrogen oxides (NOx) and volatile organic compounds, to manage tropospheric ozone pollution. Hazardous air pollutants: using science to base standards on rigorously studied risks. Air quality and climate: how does climate influence air quality at a regional or local level? Current modeling practices often do not capture variations in pollutants such as ozone-they represent a limited sample of the diverse meteorology and human behavior that affect air pollution. Improved modeling of regional air quality will help understand variability, reveal patterns of behavior, and pollutant transport issues. Controlled experiments in lab and field can help validate improved models.

369

Clean Air Act | Department of Energy  

Office of Environmental Management (EM)

Clean Air Act Clean Air Act The primary law governing the Department of Energy (DOE) air pollution control activities is the Clean Air Act (CAA). This law defines the role of the...

370

Reactive Membrane Barriers for Containment of Subsurface Contamination  

SciTech Connect

The overall goal of this project was to develop reactive membrane barriers--a new and flexible technique to contain and stabilize subsurface contaminants. Polymer membranes will leak once a contaminant is able to diffuse through the membrane. By incorporating a reactive material in the polymer, however, the contaminant is degraded or immobilized within the membrane. These processes increase the time for contaminants to breakthrough the barrier (i.e. the lag time) and can dramatically extend barrier lifetimes. In this work, reactive barrier membranes containing zero-valent iron (Fe{sup 0}) or crystalline silicotitanate (CST) were developed to prevent the migration of chlorinated solvents and cesium-137, respectively. These studies were complemented by the development of models quantifying the leakage/kill time of reactive membranes and describing the behavior of products produced via the reactions within the membranes. First, poly(vinyl alcohol) (PVA) membranes containing Fe{sup 0} and CST were prepared and tested. Although PVA is not useful in practical applications, it allows experiments to be performed rapidly and the results to be compared to theory. For copper ions (Cu{sup 2+}) and carbon tetrachloride, the barrier was effective, increasing the time to breakthrough over 300 times. Even better performance was expected, and the percentage of the iron used in the reaction with the contaminants was determined. For cesium, the CST laden membranes increased lag times more than 30 times, and performed better than theoretical predictions. A modified theory was developed for ion exchangers in reactive membranes to explain this result. With the PVA membranes, the effect of a groundwater matrix on barrier performance was tested. Using Hanford groundwater, the performance of Fe{sup 0} barriers decreased compared to solutions containing a pH buffer and high levels of chloride (both of which promote iron reactivity). For the CST bearing membrane, performance improved by a factor of three when groundwater was used in place of deionized water. The performance of high density polyethylene (HDPE) membranes containing Fe{sup 0} was then evaluating using carbon tetrachloride as the target contaminant. Only with a hydrophilic additive (glycerol), was the iron able to extend lag times. Lag times were increased by a factor of 15, but only 2-3% of the iron was used, likely due to formation of oxide precipitates on the iron surface, which slowed the reaction. With thicker membranes and lower carbon tetrachloride concentrations, it is expected that performance will improve. Previous models for reactive membranes were also extended. The lag time is a measurement of when the barrier is breached, but contaminants do slowly leak through prior to the lag time. Thus, two parameters, the leakage and the kill time, were developed to determine when a certain amount of pollutant has escaped (the kill time) or when a given exposure (concentration x time) occurs (the leakage). Finally, a model was developed to explain the behavior of mobile reaction products in reactive barrier membranes. Although the goal of the technology is to avoid such products, it is important to be able to predict how these products will behave. Interestingly, calculations show that for any mobile reaction products, one half of the mass will diffuse into the containment area and one half will escape, assuming that the volumes of the containment area and the surrounding environment are much larger than the barrier membrane. These parameters/models will aid in the effective design of barrier membranes.

William A. Arnold; Edward L. Cussler

2007-02-26T23:59:59.000Z

371

Radioactive air emissions notice of construction HEPA filtered vacuum radioactive air emission units  

SciTech Connect

This notice of construction (NOC) requests a categorical approval for construction and operation of certain portable high-efficiency particulate air (HEPA) filtered vacuum radionuclide airborne emission units (HVUs). Approval of this NOC application is intended to allow operation of the HVUs without prior project-specific approval. This NOC does not request replacement or supersedence of any previous agreements/approvals by the Washington State Department of Health for the use of vacuums on the Hanford Site. These previous agreement/approvals include the approved NOCs for the use of EuroClean HEPA vacuums at the T Plant Complex (routine technical meeting 12/10/96) and the Kelly Decontamination System at the Plutonium-Uranium Extraction (PUREX) Plant (routine technical meeting 06/25/96). Also, this NOC does not replace or supersede the agreement reached regarding the use of HEPA hand-held/shop-vacuum cleaners for routine cleanup activities conducted by the Environmental Restoration Project. Routine cleanup activities are conducted during the surveillance and maintenance of inactive waste sites (Radioactive Area Remedial Action Project) and inactive facilities. HEPA hand-held/shop-vacuum cleaners are used to clean up spot surface contamination areas found during outdoor radiological field surveys, and to clean up localized radiologically contaminated material (e.g., dust, dirt, bird droppings, animal feces, liquids, insects, spider webs, etc.). This agreement, documented in the October 12, 1994 Routine Meeting Minutes, is based on routine cleanup consisting of spot cleanup of low-level contamination provided that, in each case, the source term potential would be below 0.1 millirem per year.

JOHNSON, R.E.

1999-09-01T23:59:59.000Z

372

Influence of Fe Contamination on the Minority Carrier Lifetime of Multi-crystalline Silicon  

Science Journals Connector (OSTI)

We investigate the influence of Fe contamination on the minority carrier lifetimes of multi-crystalline silicon. The minority carrier lifetime is measured by the microwave photoconductive decay method. The original bulk lifetime is about 30 ?s after passivation with iodine solution. After intentional Fe contamination, the bulk lifetime declines with increasing temperature. Fast cooling in air conduces to the formation of more interstitial Fe ([Fe]i). Slow cooling through the control of the furnace temperature limits the formation of more [Fe]i, but leads to the formation of precipitation. The data support the idea that the minority carrier lifetime in multi-crystalline silicon mainly depends on the distribution of Fe but not the total amount. A favorite effect of [Fe]i gettering is discovered after conventional phosphorus diffusion, and the [Fe]i concentration remaining in the silicon wafer is acceptable for solar cell applications.

Meng Xia-Jie; Ma Zhong-Quan; Li Feng; Shen Cheng; Yin Yan-Ting; Zhao Lei; Li Yong-Hua; Xu Fei

2010-01-01T23:59:59.000Z

373

Uraniferous Phosphates: Resource, Security Risk, or Contaminant  

SciTech Connect

The escalation of the price of uranium (U) yellow cake (summer high = $130/0.454 kg (lb) has called into question the continuing availability of sufficient stockpiles and ores to process. As was developed during the years following World War II, the establishment and maintenance of a strategic inventory is a reasonable consideration for today. Therefore, it becomes critical to look at potential secondary resources beyond the classical ore suites now being utilized. The most economically viable future secondary source seems to be the byproducts of the beneficiation of phosphoric acids derived from phosphate ores. Phosphorous (P) is an essential nutrient for plants; its deficiency can result in highly restrictive limitations in crop productivity. Acidic soils in tropical and subtropical regions of the world are often P deficient with high P-sorption (fixation) capacities. To correct this deficiency, efficient water-soluble P fertilizers are required. The use of raw phosphate rocks not only adds phosphate but also its contained contaminants, including uranium to the treated land. Another immediate difficulty is phosphogypsum, the standard byproduct of simple extraction. It, for practical purposes, has been selectively classified as TENORM by regulators. The imposition of these standards presents major current and future disposal and re-utilization problems. Therefore, establishing an economically viable system that allows for uranium byproduct extraction from phosphoric acids is desirable. Such a system would be dependent on yellow cake base price stability, reserve estimates, political conditions, nation-state commitment, and dependence on nuclear energy. The accumulation of yellow cake from the additional extraction process provides a valuable commodity and allows the end acid to be a more environmentally acceptable product. The phosphogypsum already accumulated, as well as that which is in process, will not make a viable component for a radiation disposal devise (RDD). Concern for weapon proliferation by rogue nation states from the byproduct production of yellowcake is an unlikely scenario. To extract the fissile U-235 (0.07%) isotope from the yellowcake (99.3%) requires the erection of a costly major gaseous diffusion or a cascading centrifuge facility. Such a facility would be extremely difficult to mask. Therefore, from a diminished security risk and positive economic and environmental viewpoints, the utilization of a phosphoric acid beneficiation process extracting uranium is desirable. (authors)

LeMone, D.V.; Goodell, Ph.C. [Department of Geological Sciences, University of Texas at El Paso, Texas (United States); Gibbs, S.G. [U. T. Houston School of Public Health, El Paso, Texas (United States); Winston, J.W. [Medical Physicist, Radiological Physics, Inc., El Paso, Texas (United States)

2008-07-01T23:59:59.000Z

374

Human Enzymes Involved in the Metabolic Activation of the Environmental Contaminant 3-Nitrobenzanthrone: Evidence for Reductive Activation by Human NADPH:Cytochrome P450 Reductase  

Science Journals Connector (OSTI)

...1068-1073, 1997. 2 IARC, Diesel and Gasoline Engine Exhausts and Some Nitroarenes...1994. 4 Farmer P. B. Diesel fuel and exhaust emissions...traffic-exposed workers and a general population sample. Int...contaminant found in diesel exhaust and ambient air...

Volker M. Arlt; Marie Stiborova; Alan Hewer; Heinz H. Schmeiser; and David H. Phillips

2003-06-01T23:59:59.000Z

375

Electrocatalysts for Nonaqueous Lithium–Air Batteries:...  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges, and Perspective. Electrocatalysts for Nonaqueous Lithium–Air Batteries: Status, Challenges,...

376

Remove Condensate with Minimal Air Loss  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet outlines several condensate removal methods as part of maintaining compressed air system air quality.

377

Safeguarding indoor air quality  

SciTech Connect

California has created and implemented the first state program devoted exclusively to the investigation of nonindustrial indoor air quality. The program is responsible for promoting and conducting research on the determining factors of healthful indoor environments and is structured to obtain information about emission sources, ventilation effects, indoor concentrations, human activity patterns, exposures, health risks, control measures and public policy options. Data are gathered by a variety of methods, including research conducted by staff members, review of the available scientific literature, participation in technical meetings, contractual agreements with outside agencies, cooperative research projects with other groups and consultation with experts. 23 references, 1 figure, 1 table.

Sexton, K.; Wesolowski, J.J.

1985-01-01T23:59:59.000Z

378

AIRE-induced apoptosis is associated with nuclear translocation of stress sensor protein GAPDH  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer AIRE induces apoptosis in epithelial cells. Black-Right-Pointing-Pointer CARD domain of AIRE is sufficient for apoptosis induction. Black-Right-Pointing-Pointer AIRE induced apoptosis involves GAPDH translocation to the nuclei. Black-Right-Pointing-Pointer Deprenyl inhibits AIRE induced apoptosis. -- Abstract: AIRE (Autoimmune Regulator) has a central role in the transcriptional regulation of self-antigens in medullary thymic epithelial cells, which is necessary for negative selection of autoreactive T cells. Recent data have shown that AIRE can also induce apoptosis, which may be linked to cross-presentation of these self-antigens. Here we studied AIRE-induced apoptosis using AIRE over-expression in a thymic epithelial cell line as well as doxycycline-inducible HEK293 cells. We show that the HSR/CARD domain in AIRE together with a nuclear localization signal is sufficient to induce apoptosis. In the nuclei of AIRE-positive cells, we also found an increased accumulation of a glycolytic enzyme, glyceraldehyde-3-phosphate (GAPDH) reflecting cellular stress and apoptosis. Additionally, AIRE-induced apoptosis was inhibited with an anti-apoptotic agent deprenyl that blocks GAPDH nitrosylation and nuclear translocation. We propose that the AIRE-induced apoptosis pathway is associated with GAPDH nuclear translocation and induction of NO-induced cellular stress in AIRE-expressing cells.

Liiv, Ingrid, E-mail: ingrid.liiv@ut.ee [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia)] [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia); Haljasorg, Uku; Kisand, Kai; Maslovskaja, Julia; Laan, Martti; Peterson, Paert [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia)] [Molecular Pathology, Institute of General and Molecular Pathology, University of Tartu, Tartu (Estonia)

2012-06-22T23:59:59.000Z

379

DEVELOPMENT OF A SUPPLEMENTAL RESIDUAL CONTAMINATION GUIDELINE  

Office of Legacy Management (LM)

DEVELOPMENT OF A SUPPLEMENTAL RESIDUAL CONTAMINATION GUIDELINE DEVELOPMENT OF A SUPPLEMENTAL RESIDUAL CONTAMINATION GUIDELINE FOR THE NFSS CENTRAL DRAINAGE DITCH DECEMBER 1986 Prepared for UNITED STATES DEPARTMENT OF ENERGY OAK RIDGE OPERATIONS OFFICE Under Contract No. DE-AC05-81OR20722 By Bechtel National, Inc. Oak Ridge, Tennessee Bechtel Job No. 14501 I 1.0 INTRODUCTION AND SUMMARY 1.1 OBJECTIVE AND SCOPE The objective of this report is to describe the methodology used for establishing a supplemental residual contamination guideline for the NFSS vicinity property known as the Central Drainage Ditch (CDD). Supplemental guidelines may exceed authorized guidelines if the resultant dose will not exceed the DOE radiation protection standard of 100 mrem/yr (Ref. 1). This evaluation is based on realistic exposure pathways that were

380

Historic contamination along Oakland Inner Harbor  

SciTech Connect

As part of the ongoing remedial investigations (RI) at the Navy`s fleet and Industrial Supply Center, Oakland (FISCO)-Alameda Facility/Alameda Annex (the facility), FISC Oakland, and NAS Alameda, the presence of widespread historic chemical contaminants along the interface between the fill material and the former marshland deposits has been discovered. The historic contaminants are believed to have accumulated within the marshland areas prior to the filling activities along the Oakland Inner Harbor. The historic contaminants consist of heavy petroleum hydrocarbons, aromatic hydrocarbons, and polynuclear aromatic hydrocarbons (PAH), apparently generated by the former industries in the area. Three solid waste management units (SWMUs) and eight areas of concern ( AOCs) were identified at the facility. Three SWMUs and 1 AOC were recommended for site investigations as high-priority.

Bird, J.C. [Versar, Inc. Alameda, CA (United States); Shafer, D.L. [PRC Environmental Management, Inc,. Rancho Cordova, CA (United States)

1995-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Contaminant trap for gas-insulated apparatus  

DOE Patents (OSTI)

A contaminant trap for a gas-insulated electrical conductor is provided. A resinous dielectric body such as Kel-F wax, grease or other sticky polymeric or oligomeric compound is disposed on the inside wall of the outer housing for the conductor. The resinous body is sufficiently sticky at ambient temperatures to immobilize contaminant particles in the insulating gas on the exposed surfaces thereof. An electric resistance heating element is disposed in the resinous body to selectively raise the temperature of the resinous body to a molten state so that the contaminant particles collected on the surface of the body sink into the body so that the surface of the resinous body is renewed to a particle-less condition and, when cooled, returns to a sticky collecting surface.

Adcock, James L. (Knoxville, TN); Pace, Marshall O. (Knoxville, TN); Christophorou, Loucas G. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

382

Proposed Identification of Environmental Tobacco Smoke as a Toxic Air Contaminant  

E-Print Network (OSTI)

depending on the heat of combustion, the tobacco content,vary depending on heat of combustion, tobacco content and

California Environmental Protection Agency: Air Resources Board

2005-01-01T23:59:59.000Z

383

A theoretical study of discrete air phase migration contaminated with a volatile organic  

E-Print Network (OSTI)

, unsteady state with the local term of the total acceleration only, and unsteady state, including the convective component of the total acceleration. The bubble rise velocity for each state is derived from the momentum balance equation for corresponding flow...

Drazenovic, Mirna

2012-06-07T23:59:59.000Z

384

Effect of System and Air Contaminants on PEMFC Performance and Durability  

Energy.gov (U.S. Department of Energy (DOE))

Presented at the Department of Energy Fuel Cell Projects Kickoff Meeting, September 1 – October 1, 2009

385

Air Distribution Effectiveness for Residential Mechanical Ventilation: Simulation and Comparison of Normalized Exposures  

SciTech Connect

The purpose of ventilation is to dilute indoor contaminants that an occupant is exposed to. Even when providing the same nominal rate of outdoor air, different ventilation systems may distribute air in different ways, affecting occupants' exposure to household contaminants. Exposure ultimately depends on the home being considered, on source disposition and strength, on occupants' behavior, on the ventilation strategy, and on operation of forced air heating and cooling systems. In any multi-zone environment dilution rates and source strengths may be different in every zone and change in time, resulting in exposure being tied to occupancy patterns.This paper will report on simulations that compare ventilation systems by assessing their impact on exposure by examining common house geometries, contaminant generation profiles, and occupancy scenarios. These simulations take into account the unsteady, occupancy-tied aspect of ventilation such as bathroom and kitchen exhaust fans. As most US homes have central HVAC systems, the simulation results will be used to make appropriate recommendations and adjustments for distribution and mixing to residential ventilation standards such as ASHRAE Standard 62.2.This paper will report on work being done to model multizone airflow systems that are unsteady and elaborate the concept of distribution matrix. It will examine several metrics for evaluating the effect of air distribution on exposure to pollutants, based on previous work by Sherman et al. (2006).

Petithuguenin, T.D.P.; Sherman, M.H.

2009-05-01T23:59:59.000Z

386

Treatability test of a stacked-tray air stripper for VOC in water  

SciTech Connect

A common strategy for hydraulic containment and mass removal at VOC contaminated sites is `pump and treat (P&T)`. In P&T operations, contaminated ground water is pumped from wells, treated above ground, and discharged. Many P&T remediation systems at VOC sites rely on air stripping technology because VOCs are easily transferred to the vapor phase. In stacked-tray air strippers, contaminated water is aerated while it flows down through a series of trays. System operations at LLNL are strictly regulated by the California and federal Environmental Protection Agencies (Cal/EPA and EPA), the Bay Area Air Quality Management District (BAAQMD), the California Regional Water Quality Control Board (RWQCB) and the Department of Toxic Substances Control (DTSC). These agencies set discharge limits, require performance monitoring, and assess penalties for non-compliance. National laboratories are also subject to scrutiny by the public and other government agencies. This extensive oversight makes it necessary to accurately predict field treatment performance at new extraction locations to ensure compliance with all requirements prior to facility activation. This paper presents treatability test results for a stacked- tray air stripper conducted at LLNL and compares them to the vendor`s modeling software results.

Pico, T., LLNL

1998-04-01T23:59:59.000Z

387

Additive Manufacturing: Implications on Research and Manufacturing  

E-Print Network (OSTI)

Additive Manufacturing: Implications on Research and Manufacturing With recent developments, etc.), additive manufacturing (AM) has the potential to become a transformative technology in innovation-based manufacturing. Agencies such as the Department of Defense, the National Science Foundation

Crawford, T. Daniel

388

Remedy Evaluation Framework for Inorganic, Non-Volatile Contaminants in the Vadose Zone  

SciTech Connect

Contaminants in the vadose zone may act as a potential long-term source of groundwater contamination and need to be considered in remedy evaluations. In many cases, remediation decisions for the vadose zone will need to be made all or in part based on projected impacts to groundwater. Because there are significant natural attenuation processes inherent in vadose zone contaminant transport, remediation in the vadose zone to protect groundwater is functionally a combination of natural attenuation and use of other remediation techniques, as needed, to mitigate contaminant flux to groundwater. Attenuation processes include both hydrobiogeochemical processes that serve to retain contaminants within porous media and physical processes that mitigate the rate of water flux. In particular, the physical processes controlling fluid flow in the vadose zone are quite different and generally have a more significant attenuation impact on contaminant transport relative to those within the groundwater system. A remedy evaluation framework is presented herein that uses an adaptation of the established EPA Monitored Natural Attenuation (MNA) evaluation approach and a conceptual model based approach focused on identifying and quantifying features and processes that control contaminant flux through the vadose zone. A key concept for this framework is to recognize that MNA will comprise some portion of all remedies in the vadose zone. Thus, structuring evaluation of vadose zone waste sites to use an MNA-based approach provides information necessary to either select MNA as the remedy, if appropriate, or to quantify how much additional attenuation would need to be induced by a remedial action (e.g., technologies considered in a feasibility study) to augment the natural attenuation processes and meet groundwater protection goals.

Truex, Michael J.; Carroll, Kenneth C.

2013-05-01T23:59:59.000Z

389

Webinar: Additive Manufacturing for Fuel Cells  

Energy.gov (U.S. Department of Energy (DOE))

Video recording and text version of the webinar titled "Additive Manufacturing for Fuel Cells," originally presented on February 11, 2014.

390

Electrolytes - Advanced Electrolyte and Electrolyte Additives  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bedrov, University of Utah * Kevin Gering, INEL * Oleg Borodin, ARL * Enerdel * JSaft Partners Overview Integrated theoreticalexperimental program to develop additives...

391

Abatement of Air Pollution: Hazardous Air Pollutants (Connecticut)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations describe maximum allowable stack concentrations and hazard limiting values for the emission of hazardous air pollutants. The regulations also discuss sampling procedures for...

392

EFFECTIVE STRUCTURAL HEALTH MONITORING WITH ADDITIVE MANUFACTURING  

E-Print Network (OSTI)

will be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D printing, additive manufacturing, fatigue, intelligent structure INTRODUCTION Additive manufacturing (AM), also known as 3D Printing or Rapid

Boyer, Edmond

393

Towards Mobile Microrobot Swarms for Additive Micromanufacturing  

E-Print Network (OSTI)

of independently controlled microrobots in advanced, additive manufacturing applications. Keywords Mobile Microrobotics, Multi-robot Control, Additive Manufacturing 1. Introduction Flexible manufacturing capabilities, and additive manufacturing has proven to be a disruptive technology at the small- to medium-scale. Many

Zavlanos, Michael

394

Bioremediation of poly-aromatic hydrocarbon (PAH)-contaminated soil by composting  

SciTech Connect

This paper presents a comprehensive and critical review of research on different co-composting approaches to bioremediate hydrocarbon contaminated soil, organisms that have been found to degrade PAHs, and PAH breakdown products. Advantages and limitations of using certain groups of organisms and recommended areas of further research effort are identified. Studies investigating the use of composting techniques to treat contaminated soil are broad ranging and differ in many respects, which makes comparison of the different approaches very difficult. Many studies have investigated the use of specific bio-additives in the form of bacteria or fungi with the aim of accelerating contaminant removal; however, few have employed microbial consortia containing organisms from both kingdoms despite knowledge suggesting synergistic relationships exist between them in contaminant removal. Recommendations suggest that further studies should attempt to systemize the investigations of composting approaches to bio-remediate PAH-contaminated soil, to focus on harnessing the biodegradative capacity of both bacteria and fungi to create a cooperative environment for PAH degradation, and to further investigate the array of PAHs that can be lost during the composting process by either leaching or volatilization.

Loick, N.; Hobbs, P.J.; Hale, M.D.C.; Jones, D.L. [University of Wales, Bangor (United Kingdom). School of Environmental & Natural Resources

2009-07-01T23:59:59.000Z

395

Chelant extraction and REDOX manipulation for mobilization of heavy metals from contaminated soils  

SciTech Connect

Was the result of open burning and open detonation of chemical agents and munitions in the Toxic Burning Pits area at J-Field, located in the Edgewood Area of Aberdeen Proving Ground in Harford County, Maryland, soils have been contaminated with heavy metals. Simultaneous extraction is complicated because of the multitude of contaminant forms that exist. This paper uses data from a treatability study performed at Argonne National Laboratory to discuss and compare several treatment methods that were evaluated for remediating metals-contaminated soils. J-Field soils were subjected to a series of treatability experiments designed to determine the feasibility of using soil washing/soil flushing, enhancements to soil washing/soil flushing, solidification/stabilization, and electrokinetics for remediating soils contaminated with metals. Chelating and mobilizing agents evaluated included ammonium acetate, ethylenediaminetetraacetic acid, citric acid, Citranox, gluconic acid, phosphoric acid, oxalic acid, and nitrilotriacetic acid, in addition to pH-adjusted water. REDOX manipulation can maximize solubilities, increase desorption, and promote removal of heavy metal contaminants. Reducing agents that were studied included sodium borohydride, sodium metabisulfite, and thiourea dioxide. The oxidants studied included hydrogen peroxide, sodium percarbonate, sodium hypochlorite, and potassium permanganate. This paper summaries the results from the physical/chemical characterization, soil washing/soil flushing, and enhancements to soil washing/soil flushing portions of the study.

Brewster, M.D.; Peters, R.W.; Miller, G.A.; Patton, T.L.; Martino, L.E.

1994-12-01T23:59:59.000Z

396

Composition of bacterial and archaeal communities in freshwater sediments with different contamination levels (Lake Geneva, Switzerland)  

Science Journals Connector (OSTI)

The aim of this study was to compare the composition of bacterial and archaeal communities in contaminated sediments (Vidy Bay) with uncontaminated sediments (Ouchy area) of Lake Geneva using 16S rRNA clone libraries. Sediments of both sites were analysed for physicochemical characteristics including porewater composition, organic carbon, and heavy metals. Results show high concentrations of contaminants in sediments from Vidy. Particularly, high contents of fresh organic matter and nutrients led to intense mineralisation, which was dominated by sulphate-reduction and methanogenesis. The bacterial diversity in Vidy sediments was significantly different from the communities in the uncontaminated sediments. Phylogenetic analysis revealed a large proportion of Betaproteobacteria clones in Vidy sediments related to Dechloromonas sp., a group of dechlorinating and contaminant degrading bacteria. Deltaproteobacteria, including clones related to sulphate-reducing bacteria and Fe(III)-reducing bacteria (Geobacter sp.) were also more abundant in the contaminated sediments. The archaeal communities consisted essentially of methanogenic Euryarchaeota, mainly found in the contaminated sediments rich in organic matter. Multiple factor analysis revealed that the microbial community composition and the environmental variables were correlated at the two sites, which suggests that in addition to environmental parameters, pollution may be one of the factors affecting microbial community structure.

Laurence Haller; Mauro Tonolla; Jakob Zopfi; Raffaele Peduzzi; Walter Wildi; John Poté

2011-01-01T23:59:59.000Z

397

Full scale field test of the in situ air stripping process at the Savannah River integrated demonstration test site  

SciTech Connect

Under sponsorship from the US Department of Energy, technical personnel from the Savannah River Laboratory (SRL) and other DOE laboratories, universities and private industry have completed a full scale demonstration of environmental remediation using horizontal wells. This demonstration was performed as Phase I of an Integrated Demonstration Project designed to evaluate innovative remediation technologies for environmental restoration of sites contaminated with organic contaminants. The demonstration utilized two directionally drilled horizontal wells to deliver gases and extract contaminants from the subsurface. The resulting in situ air stripping process was designed to remediate soils and sediments above and below the water table as well as groundwater contaminated with volatile organic contaminants. The 139 day long test successfully removed volatile chlorinated solvents from the subsurface using the two horizontal wells. One well, approximately 300 ft (90m) long and 165 ft (50m) deep drilled below a contaminant plume in the groundwater, was used to inject air and strip the contaminants from the groundwater. A second horizontal well, approximately 175 ft (53m) long and 75 ft (23m) deep in the vadose zone, was used to extract residual contamination in the vadose zone along with the material purged from the groundwater. Pretest and posttest characterization data and monitoring data during the demonstration were collected to aid in interpretation of the test and to provide the information needed for future environmental restoration that employ directionally drilled wells as extraction or delivery systems. Contaminant concentration data and microbiological monitoring data are summarized in this report; the characterization data and geophysical monitoring data are documented in a series of related project reports.

Looney, B.B.; Hazen, T.C.; Kaback, D.S.; Eddy, C.A.

1991-06-29T23:59:59.000Z

398

Nitrogen Addition Increases Carbon Storage in Soils, But Not in Trees, in  

E-Print Network (OSTI)

nitrogen (N) species and car- bon dioxide (CO2) in the atmosphere globally. Received 18 August 2012Nitrogen Addition Increases Carbon Storage in Soils, But Not in Trees, in an Eastern U.S. Deciduous regions receive elevated rates of atmospheric nitrogen (N) deposition from air pollution. To evalu- ate

Templer, Pamela

399

Effects of Nonaqueous Electrolytes on Primary Li-Air Batteries  

SciTech Connect

The effects of nonaqueous electrolytes on the performance of primary Li-air batteries operated in dry air environment have been investigated. Organic solvents with low volatility and low moisture absorption are necessary to minimize the change of electrolyte compositions and the reaction between Li anode and water during the discharge process. The polarity of aprotic solvents outweighs the viscosity, ion conductivity and oxygen solubility on the performance of Li-air batteries once these latter properties attain certain reasonable level, because the solvent polarity significantly affects the number of tri-phase regions formed by oxygen, electrolyte, and active carbons (with catalyst) in the air electrode. The most feasible electrolyte formulation is the system of LiTFSI in PC/EC mixtures, whose performance is relatively insensitive to PC/EC ratio and salt concentration. The quantity of such electrolyte added to a Li-air cell has notably effects on the discharge performance of the Li-air battery as well, and a maximum in capacity is observed as a function of electrolyte amount. The coordination effect from the additives or co-solvents [tris(pentafluorophenyl)borane and crown ethers in this study] also greatly affects the discharge performance of a Li-air battery.

Xu, Wu; Xiao, Jie; Wang, Deyu; Zhang, Jian; Zhang, Jiguang

2010-06-14T23:59:59.000Z

400

NREL: Vehicle Ancillary Loads Reduction - Air Conditioning and Emissions  

NLE Websites -- All DOE Office Websites (Extended Search)

Conditioning and Emissions Conditioning and Emissions Air conditioning and indirect emissions go together in the sense that when a vehicle's air conditioning system is in use, fuel economy declines. When more petroleum fuel is burned, more pollution and greenhouse gases are emitted. An additional, "direct" source of greenhouse gas emissions is the refrigerant used in air conditioning. Called HFC-134a, this pressurized gas tends to seep through tiny openings and escapes into the atmosphere. It can also escape during routine service procedures such as system recharging. NREL's Vehicle Ancillary Loads Reduction team applied its vehicle systems modeling expertise in a study to predict fuel consumption and indirect emissions resulting from the use of vehicle air conditioning. The analysis

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Building Energy Software Tools Directory: VentAir 62  

NLE Websites -- All DOE Office Websites (Extended Search)

VentAir 62 VentAir 62 VentAir 62 logo. A ventilation airflow calculator that allows easy, accurate compliance with ASHRAE Standard 62-89. The program automates the cumbersome calculations presented by the Standard's Equation 6-1. The Windows-based program helps building designers design multiple-space ventilation systems that meet the requirements of the Standard. This tool analyzes space and system information from the VAV terminal and air handler unit schedules, calculates ventilation airflow requirements (space minimums and system-level required minimum), and provides additional or revised information for the VAV and AHU schedules. Keywords ventilation design, ASHRAE Standard 62 Validation/Testing N/A Expertise Required Knowledge of ASHRAE Standard 62 requirements and ventilation design.

402

Air Liquide - Biogas & Fuel Cells  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Liquide - Biogas & Fuel Cells Hydrogen Energy Biogas Upgrading Technology 12 June 2012 Charlie.Anderson@airliquide.com 2 Air Liquide, world leader in gases for industry,...

403

Nebraska Air Quality Regulations (Nebraska)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations, promulgated by the Department of Environmental Quality, contain provisions pertaining to ambient air quality standards, pollution source operating permits, emissions reporting,...

404

Global air quality and climate  

E-Print Network (OSTI)

Chemistry and Climate Model Intercomparison Project (ACCMIP;of chemistry–climate models with RCP emissions thus projectto project air quality responses to future climate change

2012-01-01T23:59:59.000Z

405

Air Force Renewable Energy Programs  

Energy.gov (U.S. Department of Energy (DOE))

Presentation covers Air Force Renewable Energy Programs and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

406

Reduce Air Infiltration in Furnaces  

Energy.gov (U.S. Department of Energy (DOE))

This tip sheet describes how to save process heating energy and costs by reducing air infiltration in industrial furnaces; tips include repairing leaks and increasing insulation.

407

Removing dissolved inorganic contaminants from water  

SciTech Connect

This article describes the physicochemical treatment processes typically used to remove the more common inorganic contaminants from water and wastewater. These are precipitation, coprecipitation, adsorption, ion exchange, membrane separations by reverse osmosis and electrodialysis, and combinations of these processes. The general criteria for process selection are discussed, and the processes and their typical applications are described.

Clifford, D.; Subramonian, S.; Sorg, T.J.

1986-11-01T23:59:59.000Z

408

Application of Waves for Remediation of Contaminated  

E-Print Network (OSTI)

of Hydrodynamics, Novosibirsk, 630090, Russia, and Department of Mechanical Engineering, Pearlstone Center was designed mainly to provide a qualitative assessment (i.e., changes in pressure due to the propagating wave domestic and/or industrial spills, and contamination due to the mishandling of oil products. Restoration

Gross, Amit

409

Active airborne contamination control using electrophoresis  

SciTech Connect

In spite of our best efforts, radioactive airborne contamination continues to be a formidable problem at many of the Department of Energy (DOE) weapons complex sites. For workers that must enter areas with high levels of airborne contamination, personnel protective equipment (PPE) can become highly restrictive, greatly diminishing productivity. Rather than require even more restrictive PPE for personnel in some situations, the Rocky Flats Plant (RFP) is actively researching and developing methods to aggressively combat airborne contamination hazards using electrophoretic technology. With appropriate equipment, airborne particulates can be effectively removed and collected for disposal in one simple process. The equipment needed to implement electrophoresis is relatively inexpensive, highly reliable, and very compact. Once airborne contamination levels are reduced, less PPE is required and a significant cost savings may be realized through decreased waste and maximized productivity. Preliminary ``cold,`` or non-radioactive, testing results at the RFP have shown the technology to be effective on a reasonable scale, with several potential benefits and an abundance of applications.

Veatch, B.D.

1994-06-01T23:59:59.000Z

410

Review Paper/ Biodegradation in Contaminated Aquifers  

E-Print Network (OSTI)

) in the treatment of ground water contamination, particularly for hydrocarbons (for reviews, see Christensen et al of biologically reactive compounds in ground water has been an area of intense study in recent decades. Much through an engineering approach. Many ground water scientists have used geochemical methods, targeting

411

Subsurface Flow and Contaminant Transport Documentation and User's Guide  

SciTech Connect

This report documents a finite element code designed to model subsurface flow and contaminant transport, named FACT. FACT is a transient three-dimensional, finite element code designed to simulate isothermal groundwater flow, moisture movement, and solute transport in variably saturated and fully saturated subsurface porous media. The code is designed specifically to handle complex multi-layer and/or heterogeneous aquifer systems in an efficient manner and accommodates a wide range of boundary conditions. Additionally, 1-D and 2-D (in Cartesian coordinates) problems are handled in FACT by simply limiting the number of elements in a particular direction(s) to one. The governing equations in FACT are formulated only in Cartesian coordinates.

Aleman, S.E.

1999-07-28T23:59:59.000Z

412

Land treatment of contaminated sludge with wastewater irrigation  

SciTech Connect

A large-scale field experiment was conducted to test the feasibility of land application of sludge from industrial and domestic wastewater treatment to determine the fate and environmental impact of the contaminants. The sludge contained 13 organic priority pollutants, 16 additional environmentally significant organic compounds, and high concentrations of several metals (zinc, copper, lead, nickel, and cadmium). Each compound was monitored as the irrigation water percolated through the soil and the groundwater over time. Most of the organic compounds diminished to non-detectable levels by the end of the study, and the metals proved harmless to the environment. The effectiveness of land application of sludge with wastewater irrigation was clearly demonstrated. 1 figure, 11 tables.

Demirjian, Y.A.; Westman, T.R.; Joshi, A.M.; Rop, D.J.; Buhl, R.V.; Clark, W.R.

1984-04-01T23:59:59.000Z

413

Reactive Air Aluminization  

SciTech Connect

Ferritic stainless steels and other alloys are of great interest to SOFC developers for applications such as interconnects, cell frames, and balance of plant components. While these alloys offer significant advantages (e.g., low material and manufacturing cost, high thermal conductivity, and high temperature oxidation resistance), there are challenges which can hinder their utilization in SOFC systems; these challenges include Cr volatility and reactivity with glass seals. To overcome these challenges, protective coatings and surface treatments for the alloys are under development. In particular, aluminization of alloy surfaces offers the potential for mitigating both evaporation of Cr from the alloy surface and reaction of alloy constituents with glass seals. Commercial aluminization processes are available to SOFC developers, but they tend to be costly due to their use of exotic raw materials and/or processing conditions. As an alternative, PNNL has developed Reactive Air Aluminization (RAA), which offers a low-cost, simpler alternative to conventional aluminization methods.

Choi, Jung-Pyung; Chou, Y. S.; Stevenson, Jeffry W.

2011-10-28T23:59:59.000Z

414

Protocols of radiocontaminant air monitoring for inhalation exposure estimates  

SciTech Connect

Monitoring the plutonium and americium particle emissions from soils contaminated during atmospheric nuclear testing or due to accidental releases is important for several reasons. First, it is important to quantify the extent of potential human exposure from inhalation of alpha-emitting particles, which is the major exposure pathway from transuranic radionuclides. Second, the information provided by resuspension monitoring is the basis of criteria that determine the target soil concentrations for management and cleanup of contaminated soil sites. There are other radioactive aerosols, such as the fission products (cesium and strontium) and neutron-activation products (europium isotopes), which may be resuspended and therefore necessary to monitor as well. This Standard Protocol (SP) provides the method used for radiocontaminant air monitoring by the Health and Ecological Assessment Division (formerly Environmental Sciences Division), Lawrence Livermore National Laboratory, as developed and tested at Nevada Test Site (NTS) and in the Marshall Islands. The objective of this SP is to document the applications and methods of monitoring of all the relevant variables. This protocol deals only with measuring air concentrations of radionuclides and total suspended particulates (TSP, or {open_quotes}dust{close_quotes}). A separate protocol presents the more difficult measurements required to determine transuranic aerosol emission rates, or {open_quotes}resuspension rate{close_quotes}.

Shinn, J.H.

1995-09-01T23:59:59.000Z

415

Environmental screening of future gasoline additives : computational tools to estimate chemical partitioning and forecast widespread groundwater contamination  

E-Print Network (OSTI)

(cont.) application of Raoult's law for the same set of systems. An approach was developed which relates the empirical LSER solute polarity parameter, pi2Ĥ, to two more fundamental quantities: a polarizability term and a ...

Arey, J. Samuel (Jeremy Samuel), 1975-

2004-01-01T23:59:59.000Z

416

An air line carries air at 800 kPa and 80C. An Air line ~ O O C insulated tank initially contains 20C air at a  

E-Print Network (OSTI)

An air line carries air at 800 kPa and 80°C. An Air line ~ O O C insulated tank initially contains 20°C air at a pressure of 90kPa. The valve is opened, and air flows into the tank. Determine the final temperature of the air in the tank and the mass of air that enters the tank if the valve is left

Huang, Haimei

417

Rapid guide to hazardous air pollutants  

SciTech Connect

Concise and easy to use, this book brings together a wealth of hard-to-gather information in one compact pocket guide. It offers--in alphabetical order--detailed profiles of the 189 elements and compounds determined to be hazardous air pollutants by the 1990 Amendments of the Clean Air Act. The profile for each pollutant includes: fundamental identification data (CAS number, molecular formula, formula weight, synonyms); uses (primarily in the manufacture of chemicals and as a component in the manufacturing process); physical properties (such as boiling point, density, vapor pressures, color); chemical properties (such as air/water reactivity, reactivity with skin or metal, flash point, heat of combustion); health risks, including toxic exposure guidelines, toxicity data, and acute and chronic risks; hazard risks (the substance`s potential for accidents, fires, explosions, corrosion, and chemical incompatibility); exposure routes tracking the activities, environment, sources, and occupations that tend to lead to exposure; regulatory status, listing the primary laws and citations of regulated chemicals; and important additional information on symptoms, first aid, firefighting methods, protective equipment, and safe storage.

Beim, H.J.; Spero, J.; Theodore, L.

1998-12-31T23:59:59.000Z

418

Inhalation intake of ambient air pollution in California's South Coast Air Basin  

E-Print Network (OSTI)

the impacts on air pollution and health of urban areaas a proxy for air pollution health effects (Bennett etFuel combustion, air pollution exposure, and health: The

Marshall, Julian D.; Granvold, Patrick W.; Hoats, Abigail S.; McKone, Thomas E.; Deakin, Elizabeth; Nazaroff, William W.

2006-01-01T23:59:59.000Z

419

Method of making an air electrode material having controlled sinterability  

DOE Patents (OSTI)

A tubular, porous ceramic electrode structure is made from the sintered admixture of doped lanthanum manganite and an additive containing cerium where a solid electrolyte, substantially surrounds the air electrode, and a porous outer fuel electrode substantially surrounds the electrolyte, to form a fuel cell. 2 figs.

Vasilow, T.R.; Kuo, L.J.H.; Ruka, R.J.

1994-08-30T23:59:59.000Z

420

Czech Air Quality Monitoring and Receptor Modeling Study  

Science Journals Connector (OSTI)

An ongoing air quality monitoring program in the Czech Republic has provided nearly continuous data for the concentrations of aerosol and gas-phase pollutants since its inception in February 1992. In addition to PM-2.5 concentrations, the concentrations ...

J. P. Pinto; R. K. Stevens; R. D. Willis; R. Kellogg; Y. Mamane; J. Novak; J. Šantroch; I. Beneš; J. Leni?ek; V. Bureš

1998-02-19T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

CHAMPS-Multizone-A Combined Heat, Air, Moisture and Pollutant Simulation  

NLE Websites -- All DOE Office Websites (Extended Search)

CHAMPS-Multizone-A Combined Heat, Air, Moisture and Pollutant Simulation CHAMPS-Multizone-A Combined Heat, Air, Moisture and Pollutant Simulation Environment for Whole-building Performance Analysis Title CHAMPS-Multizone-A Combined Heat, Air, Moisture and Pollutant Simulation Environment for Whole-building Performance Analysis Publication Type Journal Article Year of Publication 2012 Authors Zhang, J. S., Wei Feng, John Grunewald, Andreas Nicolai, and Carey Zhang Journal HVAC&R Research Volume 18 Issue 1-2 Abstract A computer simulation tool, named "CHAMPS-Multizone" is introduced in this paper for analyzing bothenergy and IAQ performance of buildings. The simulation model accounts for the dynamic effects ofoutdoor climate conditions (solar radiation, wind speed and direction, and contaminant concentrations),building materials and envelope system design, multizone air and contaminant flows in buildings,internal heat and pollutant sources, and operation of the building HVAC systems on the buildingperformance. It enables combined analysis of building energy efficiency and indoor air quality. Themodel also has the ability to input building geometry data and HVAC system operation relatedinformation from software such as SketchUp and DesignBuilder via IDF file format. A "bridge" to accessstatic and dynamic building data stored in a "virtual building" database is also developed, allowingconvenient input of initial and boundary conditions for the simulation, and for comparisons between thepredicted and measured results. This paper summarizes the mathematical models, adoptedassumptions, methods of implementation, and verification and validation results. The needs andchallenges for further development are also discussed

422

Additive manufacturing: technology, applications and research needs  

Science Journals Connector (OSTI)

Additive manufacturing (AM) technology has been researched and ... complexities that could not be produced by subtractive manufacturing processes. Through intensive research over the past...

Nannan Guo; Ming C. Leu

2013-09-01T23:59:59.000Z

423

A Management Strategy for Additive Manufacturing:.  

E-Print Network (OSTI)

??The thesis is about a Management Strategy for Additive Manufacturing - how engineering change influences the NPD process through the adoption of new manufacturing technology.… (more)

Zahn, N.Z.

2014-01-01T23:59:59.000Z

424

Additive Manufacturing: Current Status and Future Prospects  

Science Journals Connector (OSTI)

The potential implications of additive manufacturing or 3D printing technology are being recognized across a number ... wider adoption of and greater business value from 3D printing.

Jyotirmoyee Bhattacharjya; Sonali Tripathi…

2014-01-01T23:59:59.000Z

425

Characteristics and Effects of Lubricant Additive Chemistry...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Characteristics and Effects of Lubricant Additive Chemistry and Exhaust Conditions on Diesel Particulate Filter Service Life and Vehicle Fuel Economy A Consortium to Optimize...

426

Novel Electrolytes and Additives | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

High Voltage Electrolyte for Lithium Batteries Vehicle Technologies Office Merit Review 2014: Fluorinated Electrolyte for 5-V Li-Ion Chemistry Novel Electrolytes and Additives...

427

,"Texas Natural Gas LNG Storage Additions (MMcf)"  

U.S. Energy Information Administration (EIA) Indexed Site

LNG Storage Additions (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Texas Natural...

428

Switching Surges and Air Insulation  

Science Journals Connector (OSTI)

...research-article Switching Surges and Air Insulation B. Jones Some thirteen years ago...reduction was noticed in the strength of air insulation when subjected to slowly rising positive...collected in high voltage laboratories. Insulation against switching surges is now seen...

1973-01-01T23:59:59.000Z

429

Protective supplied breathing air garment  

DOE Patents (OSTI)

A breathing air garment for isolating a wearer from hostile environments containing toxins or irritants includes a suit and a separate head protective enclosure or hood engaging a suit collar in sealing attachment. The hood and suit collar are cylindrically shaped and dimensioned to enable the wearer to withdraw his hands from the suit sleeves to perform manual tasks within the hood interior. Breathing air is supplied from an external air line with an air delivery hose attached to the hood interior. The hose feeds air into an annular halo-like fiber-filled plenum having spaced discharge orifices attached to the hood top wall. A plurality of air exhaust/check valves located at the suit extremities cooperate with the hood air delivery system to provide a cooling flow of circulating air from the hood throughout the suit interior. A suit entry seal provided on the suit rear torso panel permits access into the suit and is sealed with an adhesive sealing flap.

Childers, Edward L. (Lakewood, CO); von Hortenau, Erik F. (Golden, CO)

1984-07-10T23:59:59.000Z

430

Protective supplied breathing air garment  

DOE Patents (OSTI)

A breathing air garment is disclosed for isolating a wearer from hostile environments containing toxins or irritants includes a suit and a separate head protective enclosure or hood engaging a suit collar in sealing attachment. The hood and suit collar are cylindrically shaped and dimensioned to enable the wearer to withdraw his hands from the suit sleeves to perform manual tasks within the hood interior. Breathing air is supplied from an external air line with an air delivery hose attached to the hood interior. The hose feeds air into an annular halo-like fiber-filled plenum having spaced discharge orifices attached to the hood top wall. A plurality of air exhaust/check valves located at the suit extremities cooperate with the hood air delivery system to provide a cooling flow of circulating air from the hood throughout the suit interior. A suit entry seal provided on the suit rear torso panel permits access into the suit and is sealed with an adhesive sealing flap. 17 figs.

Childers, E.L.; Hortenau, E.F. von.

1984-07-10T23:59:59.000Z

431

Mitigation and Remediation of Mercury Contamination at the Y...  

Office of Environmental Management (EM)

Mitigation and Remediation of Mercury Contamination at the Y-12 Plant Oak Ridge Mitigation and Remediation of Mercury Contamination at the Y-12 Plant Oak Ridge Full Document and...

432

Method to Remove Uranium/Vanadium Contamination from Groundwater  

DOE Patents (OSTI)

A process for removing uranium/vanadium-based contaminants from groundwater using a primary in-ground treatment media and a pretreatment media that chemically adjusts the groundwater contaminant to provide for optimum treatment by the primary treatment media.

Metzler, Donald R.; Morrison Stanley

2004-07-27T23:59:59.000Z

433

Analysis of Contaminant Rebound in Ground Water in Extraction...  

Office of Environmental Management (EM)

Analysis of Contaminant Rebound in Ground Water in Extraction Wells at the Tuba City, Arizona, Site Analysis of Contaminant Rebound in Ground Water in Extraction Wells at the Tuba...

434

Microsoft Word - NGNP_Contamination Control Report-050108 FINAL...  

NLE Websites -- All DOE Office Websites (Extended Search)

94 NGNP-NHS 50-CC Contamination Control 8 of 101 NGNP-Contamination Control Report-050108.doc 2008 Westinghouse Electric Company LLC LIST OF FIGURES Figure 1-1...

435

Taking It from Brown to Green: Renewable Energy on Contaminated...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Taking It from Brown to Green: Renewable Energy on Contaminated Lands Taking It from Brown to Green: Renewable Energy on Contaminated Lands U.S. Department of Energy Office of...

436

Chemistry of Metal Contaminants in Water Project at NERSC  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemistry of Metal Contaminants in Water Chemistry of Metal Contaminants in Water BylaskaZinc.jpg A plot of difference electron density of a Zn2++6H2O250H2O system from AIMDMM...

437

High Efficiency Particulate Air Filters  

NLE Websites -- All DOE Office Websites (Extended Search)

High Efficiency Particulate Air (HEPA) Filters High Efficiency Particulate Air (HEPA) Filters Home Standards DOE Workshops Nuclear Air Cleaning Conference Proceedings Qualified Filter List News Items Related Sites HEPA Related Lessons Learned Contact Us HSS Logo High Efficiency Particulate Air Filters The HEPA Filter web site provides a forum for informing and reporting department-wide activities related to filtration and ventilation issues with special reference to the High Efficiency Particulate Air (HEPA) Filters' use, inspection, and testing. This site contains essentials of DOE HEPA filter test program, procedures, requirements and quality assurance aspects applicable to HEPA filters used in DOE facilities. This site contains information about the DOE-accepted Filter Test Facility and its management, operation and quality assuranceprogram.

438

NETL: IEP - Air Quality Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Air Quality Research Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Air Quality Research Innovations for Existing Plants Air Quality Research Ambient Monitoring Emissions Characterization Predictive Modeling & Evaluation Health Effects Regulatory Drivers Air Quality Research Reference Shelf The NETL Air Quality Research program is designed to resolve the scientific uncertainties associated with the atmospheric formation, distribution, and chemical transformation of pollutant emissions from today's coal-fired power plants, and to obtain a realistic assessment of the human health impacts of these emissions. Results of this research will help the DOE Office of Fossil Energy address policy questions regarding coal plant emissions and provide guidance for future emissions control R&D programs at

439

air conditioner | OpenEI  

Open Energy Info (EERE)

air conditioner air conditioner Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

440

Air Force Renewable Energy Programs  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 1 Ken Gray P.E. HQ AFCESA /CENR Air Force Renewable Energy Programs April, 2011 FUPWG "Make Energy a Consideration in All We Do" I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Topics  Air Force Energy Use  Air Force Facility Energy Center  Current RE Generation  Project Development System  Programmed RE Generation FY11-13  Goal Achievement 2 I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Air Force 2010 Energy Use The Air Force spent approximately $8.2 billion for energy in 2010; an increase of 22% from 2009 Energy Cost and Consumption Trends Energy Cost Breakdown Aviation 79% Facilities 17% 3 Aviation 84% Facilities 12% Vehicles & Equipment

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Central power generation versus distributed generation e An air quality assessment in the South Coast Air Basin of California  

E-Print Network (OSTI)

., Suite 200, San Francisco, CA 94111, USA c Advanced Power and Energy Program, Department of Mechanical obstacles to transmission line additions may force even central power generation back into air basins by the year 2020. The intermittent nature of renewable sources like wind and solar power may require

Dabdub, Donald

442

Recommendation 195: Mitigation of Contamination in Bear Creek Burial Grounds  

Energy.gov (U.S. Department of Energy (DOE))

The ORSSAB requests DOE provide possible remedial actions to mitigate releases of contamination from Bear Creek Burial Grounds.

443

NOVEL TECHNOLOGIES FOR GASEOUS CONTAMINANTS CONTROL  

SciTech Connect

The overall objective of this project is to develop technologies for cleaning/conditioning the syngas from an integrated gasification combined cycle (IGCC) system to meet the tolerance limits for contaminants such as H{sub 2}S, COS, NH{sub 3}, HCN, HCl, and alkali for fuel cell and chemical production applications. RTI's approach is to develop a modular system that (1) removes reduced sulfur species to sub-ppm levels using a hybrid process consisting of a polymer membrane and a regenerable ZnO-coated monolith or a mixed metal oxide sorbent; (2) removes hydrogen chloride vapors to sub-ppm levels using an inexpensive, high-surface area material; and (3) removes NH{sub 3} with acidic adsorbents. RTI is working with MEDAL, Inc., and North Carolina State University (NCSU) to develop polymer membrane technology for bulk removal of H{sub 2}S from syngas. These membranes are being engineered to remove the acid gas components (H{sub 2}S, CO{sub 2}, NH{sub 3}, and H{sub 2}O) from syngas by focusing on the ''solubility selectivity'' of the novel polymer compositions. The desirable components of the syngas (H{sub 2} and CO) are maintained at high-pressure conditions as a non-permeate stream while the impurities are transported across the membrane to the low pressure side. RTI tested commercially available and novel materials from MEDAL using a high-temperature, high-pressure (HTHP) permeation apparatus. H{sub 2}S/H{sub 2} selectivities >30 were achieved, although there was a strong negative dependence with temperature. MEDAL believes that all the polymer compositions tested so far can be prepared as hollow fiber membrane modules using the existing manufacturing technology. For fuel cell and chemical applications, additional sulfur removal (beyond that achievable with the membranes) is required. To overcome limitations of conventional ZnO pellets, RTI is testing a monolith with a thin coating of high surface area zinc-oxide based materials. Alternatively, a regenerable sorbent developed by DOE/NETL (RVS-1) is being evaluated for this application. A multi-cycle test of 2-in. (5-cm) diameter monolith samples demonstrated that <0.5 ppm sulfur can be achieved. Removal of HCl vapors is being accomplished by low-cost materials that combine the known effectiveness of sodium carbonate as an active matrix used with enhanced surface area supports for greater reactivity and capacity at the required operating temperatures. RTI is working with SRI International on this task. Sorbents prepared using diatomaceous earth and sepiolite, impregnated with sodium carbonate achieved steady-state HCl level <100 ppb (target is 10 ppb). Research is continuing to optimize the impregnation and calcination procedures to provide an optimum pore size distribution and other properties. RTI and SRI International have established the feasibility of a process to selectively chemisorb NH3 from syngas on high surface area molecular sieve adsorbents at high temperatures by conducting a series of temperature-programmed reactions at 225 C (437 F). Significant levels of NH{sub 3} were adsorbed on highly acidic adsorbents; the adsorbed NH{sub 3} was subsequently recovered by heating the adsorbent and the regenerated adsorbent was reused. A comprehensive technical and economic evaluation of this modular gas cleaning process was conducted by Nexant to compare capital and operating cost with existing amine based processes. Nexant estimated a total installed cost of $42 million for the RTI process for a 500 MWe IGCC plant based on its current state of development. By comparison, Nexant estimated the installed cost for an equivalent sized plant based on the Rectisol process (which would achieve the same sulfur removal specification) to be $75 million. Thus the RTI process is economically competitive with a state-of-the-art process for syngas cleanup.

B.S. Turk; T. Merkel; A. Lopez-Ortiz; R.P. Gupta; J.W. Portzer; G.N. Krishnan; B.D. Freeman; G.K. Fleming

2001-09-30T23:59:59.000Z

444

An oxygenating additive for improving the performance and emission characteristics of marine diesel engines  

Science Journals Connector (OSTI)

Diesel engines provide the major power sources for marine transportation and contribute to the prosperity of the worldwide economy. However, the emissions from diesel engines also seriously threaten the environment and are considered one of the major sources of air pollution. The pollutants emitted from marine vessels are confirmed to cause the ecological environmental problems such as the ozone layer destruction, enhancement of the greenhouse effect, and acid rain, etc. Marine diesel engine emissions such as particulate matter and black smoke carry carcinogen components that significantly impact the health of human beings. Investigations on reducing pollutants, in particular particulate matter and nitrogen oxides are critical to human health, welfare and continued prosperity. The addition of an oxygenating agent into fuel oil is one of the possible approaches for reducing this problem because of the obvious fuel oil constituent influences on engine emission characteristics. Ethylene glycol monoacetate was found to be a promising candidate primarily due to its low poison and oxygen-rich composition properties. In this experimental study ethylene glycol monoacetate was mixed with diesel fuel in various proportions to prepare oxygenated diesel fuel. A four-cylinder diesel engine was used to test the engine performance and emission characteristics. The influences of ethylene glycol monoacetate ration to diesel oil, inlet air temperature and humidity parameters on the engine’s speed and torque were considered. The experimental results show that an increase in the inlet air temperature caused an increase in brake specific fuel consumption (BSFC), carbon monoxide, carbon dioxide emission, and exhaust gas temperature, while decreasing the excess air, oxygen and nitrogen oxide emission concentrations. Increasing the inlet air humidity increased the carbon monoxide concentration while the decreased excess air, oxygen and nitrogen oxide emission concentrations. In addition, increasing ethylene glycol monoacetate ratio in the diesel fuel caused an increase in the BSFC while the excess air and oxygen emission concentrations decreased.

C.-Y. Lin; J.-C. Huang

2003-01-01T23:59:59.000Z

445

DTECTEUR DE CONTAMINATION RADIOACTIVE Par M. BRIRE et J. WEILL,  

E-Print Network (OSTI)

623. D�TECTEUR DE CONTAMINATION RADIOACTIVE Par M. BRI�RE et J. WEILL, Division des Constructions rapidement sur leurs mains, chaussures et vêtements toute trace de contamination. Le principe utilisé permet'utilisation. LE JOURNAL DE PHYSIQUE ET LE RADIUM. TOME 14, NOVEMBRE 1953, , Le détecteur de contamination

Paris-Sud XI, Université de

446

Supplemental site inspection for Air Force Plant 59, Johnson City, New York, Volume 2: Appendices A-E  

SciTech Connect

This summary describes a Supplemental Site Inspection (SSI) conducted by Argonne National Laboratory (ANL) at Air Force Plant 59 (AFP 59) in Johnson City, New York. All required data pertaining to this project were entered by ANL into the Air Force-wide Installation Restoration Program Information System (IRPIMS) computer format and submitted to an appropriate authority. The work was sponsored by the United States Air Force as part of its Installation Restoration Program (IRP). Previous studies had revealed the presence of contaminants at the site and identified several potential contaminant sources. Argonne`s study was conducted to answer questions raised by earlier investigations. This volume consists of appendices A-E, containing field data and data validation.

Nashold, B.; Rosenblatt, D.; Tomasko, D. [and others

1995-08-01T23:59:59.000Z

447

Additive manufacturing of metallic tracks on  

E-Print Network (OSTI)

Additive manufacturing of metallic tracks on green ceramic/dielectrics Problem this technology (note: may require additional tooling/ set up time) · Rapid Prototyping & small scale manufacture microelectronics such as manufacture of LTCC ceramic/ Dielectric antenna and rapid PCB prototyping or repair

Painter, Kevin

448

SIMULATION OF THE THERMAL INTERACTION BETWEEN A BUILDING INTEGRATED PHOTOVOLTAIC COLLECTOR AND AN AIR-  

E-Print Network (OSTI)

SIMULATION OF THE THERMAL INTERACTION BETWEEN A BUILDING INTEGRATED PHOTOVOLTAIC COLLECTOR simultaneously equipped with air-source heat pumps and photovoltaic collectors is constantly increasing. In addition to electricity, the photovoltaic collector produces heat which can be used to increase

Boyer, Edmond

449

Improvement of modelling capabilities for assessing urban contamination : The EMRAS Urban Remediation Working Group.  

SciTech Connect

The Urban Remediation Working Group of the International Atomic Energy Agency's Environmental Modeling for Radiation Safety (EMRAS) programme was established to improve modeling and assessment capabilities for radioactively contaminated urban situations, including the effects of countermeasures. An example of the Working Group's activities is an exercise based on Chernobyl fallout data in Ukraine, which has provided an opportunity to compare predictions among several models and with available measurements, to discuss reasons for discrepancies, and to identify areas where additional information would be helpful.

Thiessen, K. M.; Batandjieva, B.; Andersson, K. G.; Arkhipov, A.; Charnock, T. W.; Gallay, F.; Gaschak, S.; Golikov, V.; Hwang, W. T.; Kaiser, J. C.; Kamboj, S.; Steiner, M.; Tomas, J.; Trifunovic, D.; Yu, C.; Ziemer, R. L.; Zlobenko, B.; Environmental Science Division; SENES Oak Ridge; IAEA; Riso National Lab.; Chernobyl Center for Nuclear Safety; Health Protection Agency; IRSN; Inst. of Radiation Hygene of the Ministry of Public Health, Russian Federation; KAERI, Republic of Korea; GSF, Germany; BfS, Germany; CPHR, Cuba; State Office for Radiation Protection, Croatia; AECL, Canada; National Academy of Science, Ukraine

2008-01-01T23:59:59.000Z

450

An evaluation of factors influencing Salmonella contamination of commercially processed frog legs  

E-Print Network (OSTI)

was changed to eliminate the severing of the gastrointestinal tract which contributed to contamination of the legs with Salmonella. ln addition, more extensive sanitizing measures were initiated in the processing plant. Under these conditions the incidence... preliminary improvements with respect to processing procedures and equipment sanitation. Samples taken during the second visit represented significant changes in sanitary efforts at the processing plant. These changes were based on observations and test...

Wyatt, Lawrence Eddie

1974-01-01T23:59:59.000Z

451

TOPIC Brief BUILDING TECHNOLOGIES PROGRAM Additional Efficiency  

NLE Websites -- All DOE Office Websites (Extended Search)

Additional Efficiency Additional Efficiency Package Options in the 2012 IECC Commercial Provisions TOPIC BRIEF 1 Additional Efficiency Package Options in the 2012 IECC Commercial Provisions Section C406, Additional Efficiency Package Options, is a new requirement that appears in the 2012 International Energy Conservation Code (IECC) commercial provisions. Section C406 provides three sets of provisions, one of which must be applied. T his section is intended to achieve additional energy efficiency in commercial buildings designed to meet the 2012 IECC while at the same time providing flexibility to the designer in terms of how that energy efficiency is achieved. Designers may choose to include more efficient HVAC equipment than required by the rest of the 2012 IECC, more

452

Radiological Contamination Control Training for Laboratory Research  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

06-97 06-97 February 1997 CHANGE NOTICE NO. 1 March 2002 Reaffirmation with Errata August 2002 DOE HANDBOOK RADIOLOGICAL CONTAMINATION CONTROL TRAINING FOR LABORATORY RESEARCH U.S. Department of Energy FSC 6910 Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced from the best available copy. Available to DOE and DOE contractors from ES&H Technical Information Services, U.S. Department of Energy, (800) 473-4375, fax: (301) 903-9823. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 605-6000. Reaffirmation with Errata DOE-HDBK-1106-97 Radiological Contamination Control for Laboratory Research

453

Evaluation of anti-wear performance of PFPE-soluble additives under sliding contact in high vacuum  

SciTech Connect

The anti-wear performances of perfluoropolyether (PEPE)-soluble additives were evaluated under vacuum using a vacuum four-ball tribometer with 440C stainless steel balls as test specimens. PEPE derivatives having the hydroxyl, carboxyl and phosphate groups at the end of the Type D-PEPE molecules were studied. The addition of either PEPE-soluble carboxylic acid or PEPE-soluble phosphates to the PEPE base oil remarkably reduced steady wear rates in a vacuum environment, whereas the addition of PEPE-soluble alcohol did not. Contrary to the performance in vacuum, an appreciable increase in wear rate was observed in the air atmosphere with all the types of additives used. The effect of moisture is studied in explaining the high wear rates obtained with the additives in the air environment. The mechanism of boundary lubrication with PEPE-soluble additives is discussed.

Masuko, M.; Takeshita, N.; Okabe, H. [Tokyo Institute of Technology, Tokyo (Japan)

1995-07-01T23:59:59.000Z

454

Plant Mounds as Concentration and Stabilization Agents for Actinide Soil Contaminants in Nevada  

SciTech Connect

Plant mounds or blow-sand mounds are accumulations of soil particles and plant debris around the base of shrubs and are common features in deserts in the southwestern United States. An important factor in their formation is that shrubs create surface roughness that causes wind-suspended particles to be deposited and resist further suspension. Shrub mounds occur in some plant communities on the Nevada Test Site, the Nevada Test and Training Range (NTTR), and Tonopah Test Range (TTR), including areas of surface soil contamination from past nuclear testing. In the 1970s as part of early studies to understand properties of actinides in the environment, the Nevada Applied Ecology Group (NAEG) examined the accumulation of isotopes of Pu, 241Am, and U in plant mounds at safety experiment and storage-transportation test sites of nuclear devices. Although aerial concentrations of these contaminants were highest in the intershrub or desert pavement areas, the concentration in mounds were higher than in equal volumes of intershrub or desert pavement soil. The NAEG studies found the ratio of contaminant concentration of actinides in soil to be greater (1.6 to 2.0) in shrub mounds than in the surrounding areas of desert pavement. At Project 57 on the NTTR, 17 percent of the area was covered in mounds while at Clean Slate III on the TTR, 32 percent of the area was covered in mounds. If equivalent volumes of contaminated soil were compared between mounds and desert pavement areas at these sites, then the former might contain as much as 34 and 62 percent of the contaminant inventory, respectively. Not accounting for radionuclides associated with shrub mounds would cause the inventory of contaminants and potential exposure to be underestimated. In addition, preservation of shrub mounds could be important part of long-term stewardship if these sites are closed by fencing and posting with administrative controls.

D.S. Shafer; J. Gommes

2009-02-03T23:59:59.000Z

455

Analysis of a Dedicated Outdoor Air System and Low Temperature Supply Air Conditioning System  

E-Print Network (OSTI)

This paper presents the principles and the characteristics of a dedicated outdoor air system (DOAS) and low temperature supply air system. DOAS is offered based on the demands of indoor air quality and the low temperature supply air system...

Guang, L.; Li, R.

2006-01-01T23:59:59.000Z

456

In Vitro Dissolution Tests of Plutonium and Americium Containing Contamination Originating From ZPPR Fuel Plates  

SciTech Connect

Assessing the extent of internal dose is of concern whenever workers are exposed to airborne radionuclides or other contaminants. Internal dose determinations depend upon a reasonable estimate of the expected biological half-life of the contaminants in the respiratory tract. One issue with refractory elements is determining the dissolution rate of the element. Actinides such as plutonium (Pu) and Americium (Am) tend to be very refractory and can have biological half-lives of tens of years. In the event of an exposure, the dissolution rates of the radionuclides of interest needs to be assessed in order to assign the proper internal dose estimates. During the November 2011 incident at the Idaho National Laboratory (INL) involving a ZPPR fuel plate, air filters in a constant air monitor (CAM) and a giraffe filter apparatus captured airborne particulate matter. These filters were used in dissolution rate experiments to determine the apparent dissolution half-life of Pu and Am in simulated biological fluids. This report describes these experiments and the results. The dissolution rates were found to follow a three term exponential decay equation. Differences were noted depending upon the nature of the biological fluid simulant. Overall, greater than 95% of the Pu and 93% of the Am were in a very slow dissolving component with dissolution half-lives of over 10 years.

William F. Bauer; Brian K. Schuetz; Gary M. Huestis; Thomas B. Lints; Brian K. Harris; R. Duane Ball; Gracy Elias

2012-09-01T23:59:59.000Z

457

Radiological Contamination Control Training for Laboratory Research  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2 of 3) 2 of 3) Radiological Contamination Control Training for Laboratory Research Instructor's Guide Office of Environment, Safety & Health U.S. Department of Energy February 1997 DOE-HDBK-1106-97 ii This page intentionally left blank. DOE-HDBK-1106-97 iii Table of Contents Page DEPARTMENT OF ENERGY - Course/Lesson Plan.............................. 1 Standardized Core Course Materials................................................... 1 Course Goal.........................................................................1 Target Audience.................................................................. 1 Course Description............................................................... 1 Prerequisites...................................................................... 1

458

Purifying contaminated water. [DOE patent application  

DOE Patents (OSTI)

Process is presented for removing biorefactory compounds from contaminated water (e.g., oil shale retort waste-water) by contacting same with fragmented raw oil shale. Biorefractory removal is enhanced by preactivating the oil shale with at least one member of the group of carboxylic acids, alcohols, aldehydes, ketones, ethers, amines, amides, sulfoxides, mixed ether-esters and nitriles. Further purification is obtained by stripping, followed by biodegradation and removal of the cells.

Daughton, C.G.

1981-10-27T23:59:59.000Z

459

Waste treatment process for removal of contaminants from aqueous, mixed-waste solutions using sequential chemical treatment and crossflow microfiltration, followed by dewatering  

DOE Patents (OSTI)

In processes of this invention aqueous waste solutions containing a variety of mixed waste contaminants are treated to remove the contaminants by a sequential addition of chemicals and adsorption/ion exchange powdered materials to remove the contaminants including lead, cadmium, uranium, cesium-137, strontium-85/90, trichloroethylene and benzene, and impurities including iron and calcium. Staged conditioning of the waste solution produces a polydisperse system of size enlarged complexes of the contaminants in three distinct configurations: water-soluble metal complexes, insoluble metal precipitation complexes, and contaminant-bearing particles of ion exchange and adsorbent materials. The volume of the waste is reduced by separation of the polydisperse system by cross-flow microfiltration, followed by low-temperature evaporation and/or filter pressing. The water produced as filtrate is discharged if it meets a specified target water quality, or else the filtrate is recycled until the target is achieved. 1 fig.

Vijayan, S.; Wong, C.F.; Buckley, L.P.

1994-11-22T23:59:59.000Z

460

Waste treatment process for removal of contaminants from aqueous, mixed-waste solutions using sequential chemical treatment and crossflow microfiltration, followed by dewatering  

DOE Patents (OSTI)

In processes of this invention aqueous waste solutions containing a variety of mixed waste contaminants are treated to remove the contaminants by a sequential addition of chemicals and adsorption/ion exchange powdered materials to remove the contaminants including lead, cadmium, uranium, cesium-137, strontium-85/90, trichloroethylene and benzene, and impurities including iron and calcium. Staged conditioning of the waste solution produces a polydisperse system of size enlarged complexes of the contaminants in three distinct configurations: water-soluble metal complexes, insoluble metal precipitation complexes, and contaminant-bearing particles of ion exchange and adsorbent materials. The volume of the waste is reduced by separation of the polydisperse system by cross-flow microfiltration, followed by low-temperature evaporation and/or filter pressing. The water produced as filtrate is discharged if it meets a specified target water quality, or else the filtrate is recycled until the target is achieved.

Vijayan, Sivaraman (Deep River, CA); Wong, Chi F. (Pembroke, CA); Buckley, Leo P. (Deep River, CA)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Appendix F. Air Permits Appendix F. Air Permits F-3  

E-Print Network (OSTI)

-1020-99 554701 Classified Paper Waste Incinerator 01-0020-35 554701 Brine/Methanol System 01-0020-38 554701 Brine-0106-82 034619P Flammable materials storage tank Operating K1423TSCAREPACK 73-0106-02 958435P Rad-contaminated

Pennycook, Steve

462

Supply Fan Control for Constant Air Volume Air Handling Units  

E-Print Network (OSTI)

Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant supply airflow. This conventional control sequence...

Cho, Y.; Wang, G.; Liu, M.

2007-01-01T23:59:59.000Z

463

2011 Air Quality Regulations Report | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Air Quality Regulations Report 2011 Air Quality Regulations Report 2011 Air Quality Regulations Report120111.pdf More Documents & Publications 2011:...

464

Central Air Conditioning | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Central Air Conditioning Central Air Conditioning Central Air Conditioning May 30, 2012 - 8:01pm Addthis Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. Central air conditioners circulate cool air through a system of supply and return ducts. | Photo courtesy of ©iStockphoto/DonNichols. What does this mean for me? Central air conditioning systems are thermostatically controlled and convenient to use. Central air conditioning systems must be installed properly to operate efficiently. Central air conditioning systems can share ductwork with your heating system. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls,

465

Tips: Sealing Air Leaks | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sealing Air Leaks Sealing Air Leaks Tips: Sealing Air Leaks May 16, 2013 - 5:03pm Addthis Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Air leaks can waste a lot of your energy dollars. One of the quickest energy-- and money-saving tasks you can do is caulk, seal, and weather strip all seams, cracks, and openings to the outside. Tips for Sealing Air Leaks Test your home for air tightness. On a windy day, carefully hold a lit incense stick or a smoke pen next to your windows, doors, electrical

466

Tips: Sealing Air Leaks | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tips: Sealing Air Leaks Tips: Sealing Air Leaks Tips: Sealing Air Leaks May 16, 2013 - 5:03pm Addthis Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Sources of Air Leaks in Your Home. Areas that leak air into and out of your home cost you a lot of money. The areas listed in the illustration are the most common sources of air leaks. Air leaks can waste a lot of your energy dollars. One of the quickest energy-- and money-saving tasks you can do is caulk, seal, and weather strip all seams, cracks, and openings to the outside. Tips for Sealing Air Leaks Test your home for air tightness. On a windy day, carefully hold a lit incense stick or a smoke pen next to your windows, doors, electrical

467

Room Air Conditioners | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Room Air Conditioners Room Air Conditioners Room Air Conditioners July 1, 2012 - 5:35pm Addthis A window air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. A window air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. What does this mean for me? Room air conditioners are less expensive and disruptive to install than central air conditioning systems. Room air conditioners can be a cost-effective alternative to central air conditioning systems. How does it work? Room air conditioners work by cooling one part of your home. Room or window air conditioners cool rooms rather than the entire home or business. If they provide cooling only where they're needed, room air conditioners are less expensive to operate than central units, even though

468

Air Pollution and Epigenetics: Recent Findings  

Science Journals Connector (OSTI)

The health effects of ambient air pollution are well-described, but less is known ... , microRNA, and DNA methylation; along with air pollutant keywords: air pollution, benzo[a]pyrene, nitrogen dioxide, ozone...1

Carrie V. Breton; Amy N. Marutani

2014-03-01T23:59:59.000Z

469

DunoAir | Open Energy Information  

Open Energy Info (EERE)

DunoAir Jump to: navigation, search Name: DunoAir Place: Hessen, Germany Zip: 6865 VX Sector: Wind energy Product: Doorwerth-based wind project developer. References: DunoAir1...

470

Inertial impaction air sampling device  

DOE Patents (OSTI)

An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

Dewhurst, K.H.

1987-12-10T23:59:59.000Z

471

ENVITEC shows off air technologies  

SciTech Connect

The ENVITEC International Trade Fair for Environmental Protection and Waste Management Technologies, held in June in Duesseldorf, Germany, is the largest air pollution exhibition in the world and may be the largest environmental technology show overall. Visitors saw thousands of environmental solutions from 1,318 companies representing 29 countries and occupying roughly 43,000 square meters of exhibit space. Many innovations were displayed under the category, ``thermal treatment of air pollutants.`` New technologies include the following: regenerative thermal oxidizers; wet systems for removing pollutants; biological scrubbers;electrostatic precipitators; selective adsorption systems; activated-coke adsorbers; optimization of scrubber systems; and air pollution monitors.

McIlvaine, R.W.

1995-08-01T23:59:59.000Z

472

Inertial impaction air sampling device  

DOE Patents (OSTI)

An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry.

Dewhurst, Katharine H. (13150 Wenonah SE. Apt. 727, Albuquerque, NM 87123)

1990-01-01T23:59:59.000Z

473

Inertial impaction air sampling device  

DOE Patents (OSTI)

An inertial impactor is designed which is to be used in an air sampling device for collection of respirable size particles in ambient air. The device may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

Dewhurst, K.H.

1990-05-22T23:59:59.000Z

474

Diamond Shaving of Contaminated Concrete Surfaces  

SciTech Connect

Decommissioning and decontamination of existing facilities presents technological challenges. One major challenge is the removal of surface contamination from concrete floors and walls while eliminating the spread of contamination and volumetric reduction of the waste stream. Numerous methods have been tried with a varying degree of success. Recent technology has made this goal achievable and has been used successfully. This new technology is the Diamond Floor Shaver and Diamond Wall shaver. The Diamond Floor Shaver is a self-propelled, walk behind machine that literally shaves the contaminated concrete surface to specified depths. This is accomplished by using a patented system of 100 dry cutting diamond blades with offset diamond segments that interlock to provide complete shaving of the concrete surface. Grooves are eliminated which allows for a direct frisk reading to analyze results. When attached to an appropriate size vacuum, the dust produced is 100% contained. Dust is collected in drums ready for disposition and disposal. The waste produced in shaving 7,500 square feet at 1/8 inch thickness would fill a single 55 gallon drum. Production is dependent on depth of shaving but averages 100 square feet per hour. The wall shaver uses the same patented diamond drum and blades but is hydraulically driven and is deployed using a robotic arm allowing its operation to be to totally remote. It can reach ceilings as high as 20 feet. Numerous small projects were successfully completed using this technology. Large scale deployment came in 2003. Bluegrass, in conjunction with Bartlett Services, deployed this technology to support decontamination activities for closing of the Rocky Flats nuclear weapons site. Up to six floor shavers and one wall shaver were deployed in buildings B371 and B374. These buildings had up to one half-inch, fixed plutonium and beryllium contamination. Hundred-thousands of square feet of floors and walls were shaved successfully to depths of up to one half inch. Decontamination efforts were so successful the balance of the buildings could be demolished using conventional methods. The shavers helped keep the project on schedule while the vacuum system eliminated the potential for contaminants becoming airborne.

Mullen, Lisa K. [Bluegrass Concrete Cutting Inc., 107 Mildred Street PO Box 427, Greenville, Alabama 36037 (United States)

2008-01-15T23:59:59.000Z

475

Air pollution kills. So what? Air quality engineering to improve public health  

E-Print Network (OSTI)

9/14/12 1 Air pollution kills. So what? Air quality engineering to improve public health;9/14/12 5 Health benefits from reducing PM2.5 "Each 10 µg m-3 elevation in fine particle air pollution;9/14/12 2 Air Quality Engineering H Air Quality Engineering H #12;9/14/12 3 Really? Air pollution

Levinson, David M.

476

WearAir: Expressive T-shirts for Air Quality Sensing Sunyoung Kim and Eric Paulos  

E-Print Network (OSTI)

are less proactively concerned with air quality. AIR POLLUTANT: VOLATILE ORGANIC COMPOUNDS Different types of air pollutants contribute to air quality in different locations: Ozone, CO, NOx and VOCs are major contributors to outdoor air pollution; and particulate matters, VOCs, carbon monoxide and lead are common air

Mankoff, Jennifer

477

Impact of Vehicle Air-Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range: Preprint  

SciTech Connect

Vehicle air-conditioning can significantly impact fuel economy and tailpipe emissions of conventional and hybrid electric vehicles and reduce electric vehicle range. In addition, a new US emissions procedure, called the Supplemental Federal Test Procedure, has provided the motivation for reducing the size of vehicle air-conditioning systems in the US. The SFTP will measure tailpipe emissions with the air-conditioning system operating. Current air-conditioning systems can reduce the fuel economy of high fuel-economy vehicles by about 50% and reduce the fuel economy of today's mid-sized vehicles by more than 20% while increasing NOx by nearly 80% and CO by 70%.

Farrington, R.; Rugh, J.

2000-09-22T23:59:59.000Z

478

Chemical contaminants on DOE lands and selection of contaminant mixtures for subsurface science research  

SciTech Connect

This report identifies individual contaminants and contaminant mixtures that have been measured in the ground at 91 waste sites at 18 US Department of Energy (DOE) facilities within the weapons complex. The inventory of chemicals and mixtures was used to identify generic chemical mixtures to be used by DOE's Subsurface Science Program in basic research on the subsurface geochemical and microbiological behavior of mixed contaminants (DOE 1990a and b). The generic mixtures contain specific radionuclides, metals, organic ligands, organic solvents, fuel hydrocarbons, and polychlorinated biphenyls (PCBs) in various binary and ternary combinations. The mixtures are representative of in-ground contaminant associations at DOE facilities that are likely to exhibit complex geochemical behavior as a result of intercontaminant reactions and/or microbiologic activity stimulated by organic substances. Use of the generic mixtures will focus research on important mixed contaminants that are likely to be long-term problems at DOE sites and that will require cleanup or remediation. The report provides information on the frequency of associations among different chemicals and compound classes at DOE waste sites that require remediation.

Riley, R.G.; Zachara, J.M. (Pacific Northwest Lab., Richland, WA (United States))

1992-04-01T23:59:59.000Z

479

Integrated Technology Air Cleaners (ITAC): Design and Evaluation  

E-Print Network (OSTI)

of particle air filtration technologies." Indoor Air 12(4):2011a). New air cleaning technologies for reduced commercialnumber 2 Integrated technology air cleaner High efficiency

Fisk, William J.

2014-01-01T23:59:59.000Z

480

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

E-Print Network (OSTI)

air conditioning  IAQ: Indoor air quality  LBNL: Lawrence Degrading Indoor Air Quality in California Classrooms? HDEGRADING INDOOR AIR QUALITY IN CALIFORNIA CLASSROOMS?

Fisk, Michael G. Apte and William J.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "air contaminants additionally" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Additive Manufacturing : Changing the Rules of Manufacturing  

Science Journals Connector (OSTI)

Aspects of 3D printing and additive or layer manufacturing can be treated as modular manufacturing or modular components of manufacturing in the contemporary sense. Such modular manufacturing involves specialized...

…

2014-06-01T23:59:59.000Z

482

Hanford Deep Dig Removes Contaminated Soil | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Deep Dig Removes Contaminated Soil Deep Dig Removes Contaminated Soil Hanford Deep Dig Removes Contaminated Soil March 11, 2013 - 12:00pm Addthis An aerial view of Hanford’s D Area shows the D Reactor (lower left) and DR Reactor. Workers are digging 85 feet to groundwater at two sites there to remove chromium contamination. An aerial view of Hanford's D Area shows the D Reactor (lower left) and DR Reactor. Workers are digging 85 feet to groundwater at two sites there to remove chromium contamination. Workers remove soil contaminated with sodium dichromate to prevent the chemical from reaching the groundwater and eventually the Columbia River. Workers remove soil contaminated with sodium dichromate to prevent the chemical from reaching the groundwater and eventually the Columbia River.

483

Hanford Deep Dig Removes Contaminated Soil | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hanford Deep Dig Removes Contaminated Soil Hanford Deep Dig Removes Contaminated Soil Hanford Deep Dig Removes Contaminated Soil March 11, 2013 - 12:00pm Addthis An aerial view of Hanford’s D Area shows the D Reactor (lower left) and DR Reactor. Workers are digging 85 feet to groundwater at two sites there to remove chromium contamination. An aerial view of Hanford's D Area shows the D Reactor (lower left) and DR Reactor. Workers are digging 85 feet to groundwater at two sites there to remove chromium contamination. Workers remove soil contaminated with sodium dichromate to prevent the chemical from reaching the groundwater and eventually the Columbia River. Workers remove soil contaminated with sodium dichromate to prevent the chemical from reaching the groundwater and eventually the Columbia River.

484

Multifunctional Diesel Fuel Additives from Triglycerides  

Science Journals Connector (OSTI)

Add to ACS ChemWorx ... A US1D test fuel (same as Table 3) was used with 10% ethanol added to lower the cetane number to additives was added to the low cetane fuel to evaluate the impact of the additive. ... In practice, decomposition exotherms for EHN and BK1P41 would both be lower than the DSC exotherms since heat removal capability and free radical?wall effects will impact decomposition temperatures. ...

G. J. Suppes; M. Goff; M. L. Burkhart; K. Bockwinkel; M. H. Mason; J. B. Botts; J. A. Heppert

2000-12-09T23:59:59.000Z

485

Radionuclide Air Emissions Report for 2012  

E-Print Network (OSTI)

Air Emissions Annual Reports for DOE Sites,” memo tooffices providing guidance for report preparation (March 22,470E-2012 Radionuclide Air Emission Report for Prepared by

Wahl, Linnea

2014-01-01T23:59:59.000Z

486

Covered Product Category: Room Air Conditioners | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Specifications website. Buying Energy-Efficient Room Air Conditioners When buying room air conditioners directly from commercial sources, choose models that are ENERGY...

487

Aire Valley Environmental | Open Energy Information  

Open Energy Info (EERE)

search Name: Aire Valley Environmental Place: United Kingdom Product: Leeds-based waste-to-energy project developer. References: Aire Valley Environmental1 This article...

488

Air Quality Modeling's Brave New World  

Science Journals Connector (OSTI)

Air Quality Modeling's Brave New World ... A new generation of software systems is set to tackle regional and multipollutant air quality issues. ...

Elaine L. Appleton

2011-06-07T23:59:59.000Z

489

Colorado Air Pollution Control Division - Construction Permits...  

Open Energy Info (EERE)

Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Colorado Air Pollution Control Division - Construction Permits Forms and Air Pollutant Emission...

490

Energy performance of underfloor air distribution systems  

E-Print Network (OSTI)

loss of control of the supply air temperature from the loss of control of the  supply air temperature from the 

Bauman, Fred; Webster, Tom; Linden, Paul; Buhl, Fred

2007-01-01T23:59:59.000Z

491

Mountain Air | Open Energy Information  

Open Energy Info (EERE)

Air Air Jump to: navigation, search Name Mountain Air Facility Mountain Air Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Terna Energy Developer Terna Energy Energy Purchaser Idaho Power Location Hammett ID Coordinates 42.98719519°, -115.3985024° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.98719519,"lon":-115.3985024,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

492

Missouri Air Conservation Law (Missouri)  

Energy.gov (U.S. Department of Energy (DOE))

This law's purpose is to maintain the purity of the air resources of the state to protect the health, general welfare and physical property of the people, maximum employment and the full industrial...

493

Natural Air-Conditioning Systems  

Science Journals Connector (OSTI)

Recent research in summer air conditioning utilizing natural sources of coolness* are discussed. These systems are classified according to the sources of coolness, the modes of heat transfer and airflow, and t...

Mehdi N. Bahadori

1986-01-01T23:59:59.000Z

494

ARM - Lesson Plans: Air Pressure  

NLE Websites -- All DOE Office Websites (Extended Search)

activity to work. It is important that students work carefully and slowly. A break in the seal between the cup and card allows air into the cup, causing the water to fall. Note: If...

496

Robotic Radionuclide Inspection and Mapping of Surface Contamination On Building Surfaces  

SciTech Connect

The mapping of localized regions of radionuclide contamination in a building can be a time consuming and costly task. Humans moving hand-held radiation detectors over the target areas are subject to fatigue. A contamination map based on manual surveys can contain significant operator-induced inaccuracies. A Fanuc M16i light industrial robot has been configured for installation on a mobile aerial work platform, such as a tall forklift. When positioned in front of a surface, the robot can map the radiation levels over a surface area of up to 2 m by 2 m. The robot's end effector is a commercial alpha-beta radiation sensor, augmented with range and collision avoidance sensors to ensure operational safety as well as to maintain a constant gap between surface and radiation sensors. A graphical user interface guides the robot operator to position the robot at the desired wall segments, and to select an area for surveying. After the operator has entered the required parameters, the custom surveying software plans the scan sequence, alerts of any potential problems, such as unreachable singularities, and creates a contamination map of the surveyed region. Maps of multiple regions can be combined into a single map of the entire region. The survey data are stored in a data base file. In addition to automated surface scans, operators can manually select regions for further inspection, as well as control the end effector motion manually. In comparison to manual contamination surveys, the robotic approach is more accurate, reliable, and faster. (authors)

Mauer, G.F.; Kawa, Ch. [Nevada Univ., Dept. of Mechanical Engineering, Las Vegas, NV (United States)

2007-07-01T23:59:59.000Z

497

In situ treatment of mixed contaminants in groundwater: Review of candidate processes  

SciTech Connect

This document describes the screening and preliminary evaluation of candidate treatment for use in treating mixed contaminants volatile organic compounds (VOCs) and radionuclides in groundwater. Treating mixed contaminants presents unusual difficulties. Typically, VOCs are the most abundant contaminants, but the presence of radionuclides results in additional health concerns that must be addressed, usually by a treatment approach different from that used for VOCs. Furthermore, the presence of radionuclides may yield mixed solid wastes if the VOCs are treated by conventional means. These issues were specifically addressed in the evaluation of candidate treatment processes for testing in this program. Moreover, because no research or early development of a particular process would be performed, the technology review also focused on technologies that could be readily adapted and integrated for use with mixed contaminants. The objective is to couple emerging or available processes into treatment modules for use in situ. The three year project, to be completed in September 1996, includes a full-scale field demonstration. The findings reported in this document encompass all activities through the treatment process evaluations.

Korte, N.E. [ed.] [Oak Ridge National Lab., Grand Junction, CO (United States)] [ed.; Oak Ridge National Lab., Grand Junction, CO (United States); Siegrist, R.L. [ed.] [Oak Ridge National Lab., TN (United States)] [ed.; Oak Ridge National Lab., TN (United States); Ally, M. [and others] [and others

1994-10-01T23:59:59.000Z

498

Common Air Conditioner Problems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Common Air Conditioner Problems Common Air Conditioner Problems Common Air Conditioner Problems May 30, 2012 - 6:41pm Addthis A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. What does this mean for me? You can eliminate the most common air conditioner problems before hiring an air conditioning technician. You can do some air conditioner maintenance and repair tasks yourself. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

499

Common Air Conditioner Problems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Common Air Conditioner Problems Common Air Conditioner Problems Common Air Conditioner Problems May 30, 2012 - 6:41pm Addthis A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. A refrigerant leak is one common air conditioning problem. | Photo courtesy of ©iStockphoto/BanksPhotos. What does this mean for me? You can eliminate the most common air conditioner problems before hiring an air conditioning technician. You can do some air conditioner maintenance and repair tasks yourself. One of the most common air conditioning problems is improper operation. If your air conditioner is on, be sure to close your home's windows and outside doors. For room air conditioners, isolate the room or a group of connected rooms as much as possible from the rest of your home.

500

Request for Addition or Change to SPP Submitted By  

E-Print Network (OSTI)

Certification Certified wood Green Seal Standard GS-11 and Green Seal Plus (iaq) Greenguard Primarily indoor air with South Coast Air Quality Management District Rule #1168? Aerosol adhesive: compliance with Green Seal & Rug Institute's Green Label Plus Indoor air quality/ emissions criteria Forest Stewardship

Kamat, Vineet R.