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1

Biomass Anaerobic Digestion Facilities and Biomass Gasification...  

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

Biomass Anaerobic Digestion Facilities and Biomass Gasification Facilities (Indiana) Biomass Anaerobic Digestion Facilities and Biomass Gasification Facilities (Indiana)...

2

Biomass Anaerobic Digestion Facilities and Biomass Gasification Facilities (Indiana)  

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

The Indiana Department of Environmental Management requires permits before the construction or expansion of biomass anaerobic digestion or gasification facilities.

3

EA-1907: Biogas Anaerobic Digester Facility, Oakley, Kansas | Department of  

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

907: Biogas Anaerobic Digester Facility, Oakley, Kansas 907: Biogas Anaerobic Digester Facility, Oakley, Kansas EA-1907: Biogas Anaerobic Digester Facility, Oakley, Kansas Summary This EA evaluates the environmental impacts of a proposal by DOE and USDA to provide funding to Western Plains Energy, LLC (WPE) to construct, purchase equipment, and operate a new Biogas Anaerobic Digester at WPE's existing Ethanol Facility, located at 3022 County Road 18, Grinnell Township (Oakley), Gove County, Kansas. The proposed facility will include a receiving building, digester, and related infrastructure. Based on the analysis in USDA's Final EA and FONSI, DOE has determined that DOE's proposed action does not constitute a major Federal action that would significantly affect the quality of the human or natural environment.

4

Arnold Schwarzenegger ANAEROBIC DIGESTER  

E-Print Network (OSTI)

Arnold Schwarzenegger Governor ANAEROBIC DIGESTER IMPLEMENTATION ISSUES Phase I - A Survey of U concrete steps to install an anaerobic digestion (AD) facility and documentation of the factors technology. Keywords Anaerobic digester, biogas, electricity production, manure management #12;4 Table

5

Arnold Schwarzenegger ANAEROBIC DIGESTER  

E-Print Network (OSTI)

Arnold Schwarzenegger Governor ANAEROBIC DIGESTER IMPLEMENTATION ISSUES Phase II - A Survey who took concrete steps to install an anaerobic digestion (AD) facility and documentation samples are overwhelmingly in favor of AD technology. Keywords Anaerobic digester, biogas, electricity

6

Anaerobic Digestion  

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

Anaerobic digestion is a common technology in today's agriculture, municipal waste, and brewing industries. It uses bacteria to break down waste organic materials into methane and other gases,...

7

Energy Basics: Anaerobic Digestion  

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

Biomass Biofuels Biopower Anaerobic Digestion Bio-Based Products Biomass Resources Geothermal Hydrogen Hydropower Ocean Solar Wind Anaerobic Digestion Anaerobic digestion is a...

8

Operational characteristics of anaerobic digesters at selected municipal wastewater treatment facilities in the United States  

DOE Green Energy (OSTI)

Bench-scale and pilot plant studies at PNL have shown that powdered activated carbon is effective in improving volatile solids destruction and gas production in anaerobic digesters that are operating at less than normally expected levels of efficiency. To evaluate the applicability of this technology to digesters in the United States, digester operating characteristics at 60 facilities were surveyed and the number of stressed digesters estimated. The results show that although median values of the operating parameters conformed with those of a well-operated digester, 30% of the digesters surveyed were stressed with regard to at least one important parameter. Of the 30 largest treatment plants in the U.S., 7 fell into this category. Digester gas production and usage were then examined to determine the importance of methane off-gas as an energy source. A conservative estimate is that the gas produced nationally represents a heating value of about 2.36 x 10/sup 13/ Btu/year with a present value of $40 million. Of this amount, an estimated 75% is used either onsite or sold. Onsite uses include heating digesters and buildings, incinerating sludge, operating equipment, and generating electricity. The other 25% is flared and the energy value lost. The present value of the flared gas is about $10 million/year. Natural gas prices are projected to increase 150% over the next 7 years. If the present utilization ratio continues, the flared gas will be worth approximately $27 million in 1985. Presently, digester gas is mainly used for process heating and operating equipment. The technical and economic feasibility of recovering digester gas for electrical power generation, onsite equipment operation, and sales to other consumers (utilities, private companies) should be thoroughly investigated. If fuel gas recovery and utilization are found to be desirable, consideration should be given to expanding and upgrading anaerobic digester facilities in the U.S.

Spencer, R.R.; Wong, A.L.; Coates, J.A.; Ahlstrom, S.B.

1978-12-01T23:59:59.000Z

9

DOE/EA-1624: Environmental Assessment for Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities (December 2008)  

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

Auburn Landfill Gas Electric Generators and Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities Auburn, New York Final Environmental Assessment DOE/EA-1624 Prepared for: U.S. Department of Energy National Energy Technology Laboratory January 2009 INTENTIONALLY LEFT BLANK AUBURN LANDFILL GAS ELECTRIC GENERATORS AND ANAEROBIC DIGESTER ELECTRIC FACILITIES FINAL EA DOE/EA-1624 i Table of Contents 1.0 INTRODUCTION .......................................................................................................................................... 1 1.1 BACKGROUND............................................................................................................................................... 2 1.2 PURPOSE AND NEED ...................................................................................................................................... 4

10

Anaerobic Digestion | Open Energy Information  

Open Energy Info (EERE)

(Redirected from - Anaerobic Digestion) Jump to: navigation, search TODO: Add description List of Anaerobic Digestion Incentives Retrieved from "http:en.openei.orgw...

11

Anaerobic Digestion | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search TODO: Add description List of Anaerobic Digestion Incentives Retrieved from "http:en.openei.orgwindex.php?titleAnaerobicDigestion&oldid267145"...

12

Anaerobic digestion process  

SciTech Connect

An algae culture grown on the water from the digested slurry of a biogasification plant serves as a means of removing CO/sub 2/ from the methane stream while purifying the wastewater and providing more biomass for the anaerobic digestion plant. Tested on a sewage-sludge digestion system, the proposed process improved the methane yield by 32% and methane concentration by 53-98 vol % while lowering the concentration of nitrogen and phosphorus in the final water.

Ishida, M.; Haga, R.; Odawara, Y.

1982-10-19T23:59:59.000Z

13

Anaerobic Digestion Technology  

Science Conference Proceedings (OSTI)

As fuel resources become scarcer, it has become more important to identify and harness alternative energy sources. Currently, 24 states have renewable portfolio standards (RPS), requiring electricity providers to obtain a minimum percentage of their power from renewable energy sources, with the purpose of becoming less dependent on fossil fuels, reducing waste and greenhouse gas emissions, and decreasing costs as fuel prices increase. Anaerobic digestion (AD) has proven itself a viable alternative techno...

2007-12-21T23:59:59.000Z

14

Characterization and environmental studies of Pompano Beach anaerobic digestion facility. Annual report  

DOE Green Energy (OSTI)

Municipal solid wastes contain numerous substances of potential environmental concern. While some understanding of the composition of raw municipal waste and its leachate products is available, no information regarding characteristics of solid, liquid and gaseous outputs from anaerobic digestion exists. If centralized anaerobic digestion plants are to be environmentally viable, the characteristics and environmental effects of effluents from these plants must be acceptable. The environmental concerns are particularly acute where ground water supplies are precariously low and the water table is high, South Florida is such a location. A characterization and environmental study was initiated by the Resource Recovery Group on August 1978. The specific objectives are: (1) systematic characterization of solid, liquid and gaseous inputs and outputs; (2) investigations of leaching characteristic of output solid and liquid effluents, and the transport of pollutants to and through ground water systems; and (3) analysis of environmental and process parameters to obtain causal relationships.

Sengupta, S; Gerrish, H P; Wong, K F; Nemerow, N; Daly, Jr, E L; Farooq, S; Chriswell, C

1980-08-01T23:59:59.000Z

15

Anaerobic digestion of equine waste.  

E-Print Network (OSTI)

??The goals of this project were to determine the methane production potential of horse manure during anaerobic digestion; to examine the effect of softwood chip… (more)

Wartell, Brian A., 1984-

2009-01-01T23:59:59.000Z

16

Characterization and environmental studies of Pompano Beach anaerobic digestion facility. Semi-annual report  

DOE Green Energy (OSTI)

Anaerobic digestion of municipal waste has been demonstrated to be feasible in bench scale experiments by Pfeffer (1974). Approximately, 50% reduction in mass and production of 6000 ft/sup 3/ of gas/ton have been estimated. The gas composition is estimated to be 50% methane and 50% carbon monoxide. The technical and economic feasibility of anaerobic digestion with an ultimate objective of commercialization are discussed. A plant has been built at Pompano Beach, Florida on an existing shredding and landfill operation site. The plant design capacity is 100 tons/day. Two digesters have been constructed to be used in parallel. The process consists of primary shredding, metal separation, secondary shredding, air classification and digestion of light fraction. Sewage sludge was used to seed the initial mixture in the digester. The output slurry is vacuum filtered and the filter cake disposed on an existing landfill. The filtrate is recycled. Excess filtrate is sprayed on the landfill. At present the output gas is being flared. A flow chart for the plant is presented. It is imperative that environmental investigations be conducted on new energy technology prior to commercialization. A project was initiated to characterize all input and output streams and to assess the potential for ground water contamination by landfill disposal of effluents. Detailed chemical, biological and physical characterization efforts supported by leaching and modelling studies are being conducted to achieve the stated objectives. Some mutagenic studies were also conducted. The environmental investigations were started in August 1978. Sengupta et al (1979a) reported the first year's efforts.

Sengupta, S; Farooq, S; Gerrish, H P; Wong, K F; Daly, Jr, E L; Chriswell, C

1980-02-01T23:59:59.000Z

17

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

Performance Data For Anaerobic Digestion of Various Types ofMARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OFMARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF

Haven, Kendall F.

2011-01-01T23:59:59.000Z

18

Anaerobic Digesters Design and Operation  

E-Print Network (OSTI)

Public awar'eness of the need to develop systems for producing energy from readilyrenewable sources, as an alternative to energy from expensive and diminishing supplies of fossil fuels, led to research at The Pennsylvania State University on systems for methane production by anaerobic digestion of animal manures. Experiences with design, construction, and operation of a two-stage heated continuous-feed digester for a herd of 100 dairy cows are reported in this Bulletin. The publication contains discussions of the microbiological processes involved in the anaerobic digestion of organic materials;

S. P. E. Persson; R. W. Regan

1979-01-01T23:59:59.000Z

19

Anaerobic digestion of industrial activated aerobic sludge  

Science Conference Proceedings (OSTI)

The Tennessee Eastman Company manufactures a variety of organic chemicals, plastics and fibers at their Kingsport Tennessee Facility. The wastewater generated during the manufacture of these compounds is currently treated using an activated sludge process. The objective of the project is to evaluate the economic potential of an anaerobic digestion process to convert industrial sludge at the Tennessee Eastman Company into biogas. The evaluation will require collection and analysis of experimental data on the anaerobic digestion of industrial sludge obtained from Kingsport. Although the experiments will be conducted using Tennessee Eastman sludge, these results should be also generally applicable to similar industrial sludge.

Goodloe, J.G.; Roberts, R.S.

1990-04-01T23:59:59.000Z

20

Energy Basics: Anaerobic Digestion  

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

of heat energy per cubic foot (0.028 cubic meters) when burned. Natural gas is a fossil fuel that was created eons ago by the anaerobic decomposition of organic materials. It is...

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Bio-Terre Cook Farm Anaerobic Digester Project  

Science Conference Proceedings (OSTI)

This report details the preliminary research and construction of a novel low temperature earthen cell for anaerobic digestion and biogas production facility at Cook Feeders Ltd., a 6,000 head swine finisher operation, located in central Manitoba, Canada.

2005-09-07T23:59:59.000Z

22

A Design-Builder's Perspective: Anaerobic Digestion, Forest County...  

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

A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi Community - A Case Study A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi...

23

Anaerobic Digestion Basics | Department of Energy  

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

Anaerobic Digestion Basics Anaerobic Digestion Basics Anaerobic Digestion Basics August 14, 2013 - 1:07pm Addthis Anaerobic digestion is a common technology in today's agriculture, municipal waste, and brewing industries. It uses bacteria to break down waste organic materials into methane and other gases, which can be used to produce electricity or heat. Methane and Anaerobic Bacteria Methane is a gas that contains molecules of methane with one atom of carbon and four atoms of hydrogen (CH4). It is the major component of the natural gas used in many homes for cooking and heating. It is odorless, colorless, and yields about 1,000 British thermal units (Btu) [252 kilocalories (kcal)] of heat energy per cubic foot (0.028 cubic meters) when burned. Natural gas is a fossil fuel that was created eons ago by the anaerobic

24

Anaerobic Co-Digestion on Dairies in Washington State  

E-Print Network (OSTI)

1 Anaerobic Co-Digestion on Dairies in Washington State The solid waste handling permit exemption W This factsheet briefly reviews the role of co-digestion within anaerobic digestion (AD), explains the potential Digestion and the Role of Co-Digestion Anaerobic digestion is increasingly used to treat livestock manure

Collins, Gary S.

25

Single stage anaerobic digester at Tarleton State University. Final report  

DOE Green Energy (OSTI)

The design and operation of the demonstration plant facilities at Tarleton State University to produce methane in a single stage anaerobic digester are described. A combination of manures from hogs and poultry are used as feedstock. Uses for the methane, cost of the digester, and value of the energy produced are discussed. During the 21 months of operation, 310 people have visited the project. (DMC)

Not Available

1980-01-01T23:59:59.000Z

26

A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi Community - A Case Study  

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

Design-Builder's Perspective: Anaerobic Digestion Design-Builder's Perspective: Anaerobic Digestion Forest County Potawatomi Community - A Case Study Presented by Jason Rieth, P.E., LEED AP BD + C Industrial Construction Executive Miron Construction Co., Inc. 715.841.4029 | jason.rieth@miron-construction.com * Overview of the FCPC Renewable Generation Facility

27

Anaerobic Digestion | Department of Energy  

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

bacteria break down or "digest" organic material in the absence of oxygen and produce biogas as a waste product. (Aerobic decomposition, or composting, requires large amounts of...

28

Community-Scale Anaerobic Digesters Webinar | Department of Energy  

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

Community-Scale Anaerobic Digesters Webinar Community-Scale Anaerobic Digesters Webinar Community-Scale Anaerobic Digesters Webinar April 16, 2013 1:00PM MDT Webinar This free webinar will be held on April 16, 2013, from 1-2:15 p.m. Mountain Daylight Time. It will provide information on San Jose, California's, commercial-scale, high solids dry fermentation anaerobic digestion system, and the Forest County Potawatomi Community's anaerobic digester project. Implementing Anaerobic Digestion in San Jose's Integrated Processing Infrastructure This presentation will provide background on San Jose, California's, leading-edge program using the nation's first commercial-scale, high solids dry fermentation anaerobic digestion system to process commercial organics from more than 8,000 businesses in the city. Phase one of the Zero Waste

29

Photoenhanced anaerobic digestion of organic acids  

DOE Patents (OSTI)

A process is described for rapid conversion of organic acids and alcohols in anaerobic digesters into hydrogen and carbon dioxide, the optimal precursor substrates for production of methane. The process includes addition of photosynthetic bacteria to the digester and exposure of the bacteria to radiant energy (e.g., solar energy). The process also increases the pH stability of the digester to prevent failure of the digester. Preferred substrates for photosynthetic bacteria are the organic acid and alcohol waste products of fermentative bacteria. In mixed culture with methanogenic bacteria or in defined co-culture with non-aceticlastic methanogenic bacteria, photosynthetic bacteria are capable of facilitating the conversion of organic acids and alcohols into methane with low levels of light energy input. 8 figs.

Weaver, P.F.

1989-08-25T23:59:59.000Z

30

Photoenhanced anaerobic digestion of organic acids  

DOE Patents (OSTI)

A process is described for rapid conversion of organic acids and alcohols anaerobic digesters into hydrogen and carbon dioxide, the optimal precursor substrates for production of methane. The process includes addition of photosynthetic bacteria to the digester and exposure of the bacteria to radiant energy (e.g., solar energy). The process also increases the pH stability of the digester to prevent failure of the digester. Preferred substrates for photosynthetic bacteria are the organic acid and alcohol waste products of fermentative bacteria. In mixed culture with methanogenic bacteria or in defined co-culture with non-aceticlastic methanogenic bacteria, photosynthetic bacteria are capable of facilitating the conversion or organic acids and alcohols into methane with low levels of light energy input.

Weaver, Paul F. (Golden, CO)

1990-01-01T23:59:59.000Z

31

A mass transfer model of ammonia volatilisation from anaerobic digestate  

SciTech Connect

Anaerobic digestion (AD) is becoming increasingly popular for treating organic waste. The methane produced can be burned to generate electricity and the digestate, which is high in mineral nitrogen, can be used as a fertiliser. In this paper we evaluate potential losses of ammonia via volatilisation from food waste anaerobic digestate using a closed chamber system equipped with a sulphuric acid trap. Ammonia losses represent a pollution source and, over long periods could reduce the agronomic value of the digestate. Observed ammonia losses from the experimental system were linear with time. A simple non-steady-state partitioning model was developed to represent the process. After calibration, the model was able to describe the behaviour of ammonia in the digestate and in the trap very well. The average rate of volatilisation was approximately 5.2 g N m{sup -2} week{sup -1}. The model was used to extrapolate the findings of the laboratory study to a number of AD storage scenarios. The simulations highlight that open storage of digestate could result in significant losses of ammonia to the atmosphere. Losses are predicted to be relatively minor from covered facilities, particularly if depth to surface area ratio is high.

Whelan, M.J., E-mail: m.j.whelan@cranfield.ac.u [School of Applied Sciences, Cranfield University, College Road, Cranfield, Bedfordshire, MK43 0AL (United Kingdom); Everitt, T.; Villa, R. [School of Applied Sciences, Cranfield University, College Road, Cranfield, Bedfordshire, MK43 0AL (United Kingdom)

2010-10-15T23:59:59.000Z

32

Economic implications of anaerobic digesters on dairy farms in Texas  

E-Print Network (OSTI)

Historically, air and water have been considered common property resources and, therefore, over utilized as waste receptors. Dairy waste is a leading environmental concern in the North Bosque River watershed in Texas. Changing societal attitudes are forcing dairies and policymakers to balance environmental concerns with farm profitability. Dairies are entering a realm filled with technologies to combat waste concerns. Anaerobic digester technology may play a role in helping dairies balance profit and the environment. Digesters capture methane from livestock waste and transform it into electricity which can be sold to utilities or used on-farm. Because a digester facility is confined, air and water pollution can be reduced. Technological advancement and institutional factor changes allowing the sale of on-farm produced electricity and green power requirements have increased the economic feasibility of digesters. The study of the economic implications of anaerobic digesters for Texas dairies provides producers and policymakers with information to make good decisions concerning adoption and subsidization of this technology. At the beginning of this study, no digesters were operating in Texas. Dairies operating digesters in four states, therefore, were interviewed on-site to provide necessary data. The expected net present value, E(NPV), of a plug-flow digester is negative with and without selling electricity, indicating it should not be constructed based strictly on its financial contribution. At the current electricity-selling price, digesters are less economically feasible than current waste management strategies, lagoons, even after considering potential environmental penalties. However, selling electricity and capturing by-product heat for cost savings makes the digester's E(NPV) less negative than lagoons. The E(NPV) of a covered lagoon digester is positive. This indicates digesters are a potentially feasible waste management strategy. For plug-flow digesters to show a positive E(NPV), the selling price needs to be approximately 82.38% higher than the current price. The breakeven selling price is 12% higher than the current price. Below the breakeven price, lagoons have a larger E(NPV) than plug-flow digesters, therefore making lagoons the preferred waste management strategy. Results suggest changes in rules and technology efficiency make digesters economically competitive with current waste management systems.

Jackson, Randy Scott, Jr.

2003-05-01T23:59:59.000Z

33

Apparatus for the anaerobic digestion of natural organic waste  

Science Conference Proceedings (OSTI)

The title system consists of a feed tank, from which sewage is provided to a digester tank at an adjustable continuous weight, in which the sewage is anaerobically digested. The gas produced in the anaerobic digester is collected at the top and pumped to a diffuser at the bottom of the digester. The supernatent from the treated sewage is transferred to an outlet tank, and sludge is removed from the bottom of the digester tank.

Hawkes, D.L.; Horton, R.; Stafford, D.A.

1980-11-11T23:59:59.000Z

34

List of Anaerobic Digestion Incentives | Open Energy Information  

Open Energy Info (EERE)

Anaerobic Digestion Incentives Anaerobic Digestion Incentives Jump to: navigation, search The following contains the list of 285 Anaerobic Digestion Incentives. CSV (rows 1 - 285) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Advanced Energy Job Stimulus Program (Ohio) Industry Recruitment/Support Ohio Commercial Fed. Government Industrial Institutional Local Government Nonprofit State Government

35

Anaerobic Digester Gas-to-Electricity Rebate and Performance...  

Open Energy Info (EERE)

Anaerobic Digester Gas-to-Electricity Rebate and Performance Incentive Incentive Type State Rebate Program Applicable Sector Agricultural, Commercial, Industrial, Institutional,...

36

On a Three Step Model of Anaerobic Digestion Including the Hydrolysis of  

E-Print Network (OSTI)

On a Three Step Model of Anaerobic Digestion Including the Hydrolysis of Particulate Matter R degradation, chemostat, models, growth rate, equilibrium, bistability. 1. INTRODUCTION Anaerobic digestion, the anaerobic digestion is generally considered as a three step process: hydrolysis and liquefaction

Paris-Sud XI, Université de

37

Anaerobic Digestion Process Identification Using Recurrent Neural Network Model  

Science Conference Proceedings (OSTI)

This paper proposes the use of a Recurrent Neural Network Model (RNNM) for decentralized and centralized identification of an aerobic digestion process, carried out in a fixed bed and a recirculation tank anaerobic wastewater treatment system. The analytical ... Keywords: Recurrent neural network model, backpropagation learning, decentralized model, centralized model, system identification, anaerobic digestion bioprocess

Rosalba Galvan-Guerra; Ieroham S. Baruch

2007-11-01T23:59:59.000Z

38

Experimental study on rheological characteristics of high solid content sludge and it is mesophilic anaerobic digestion  

Science Conference Proceedings (OSTI)

Compared to conventional low solid content anaerobic digestion high solid content anaerobic digestion can offer attractive advantages such as higher biogas generation and smaller reactor volume demand. However

2013-01-01T23:59:59.000Z

39

Effect of Trace Elements on Anaerobic Digestion of Coking Wastewater  

Science Conference Proceedings (OSTI)

The pretreatment of coking wastewater using ASBR was conducted at 35? in this paper. The addition of trace elements to the anaerobic reactor has positive effect on the anaerobic treatment of coking wastewater, but too much or too little of it will ... Keywords: trace elements, anaerobic digestion, coking wastewater

Yu-ying Li; Bing Li

2009-10-01T23:59:59.000Z

40

DESIGN OF SOFTWARE SENSORS FOR UNMEASURABLE VARIABLES OF ANAEROBIC DIGESTION PROCESSES  

E-Print Network (OSTI)

DESIGN OF SOFTWARE SENSORS FOR UNMEASURABLE VARIABLES OF ANAEROBIC DIGESTION PROCESSES Simeonov, I variables of anaerobic digestion processes. For this purpose, different mathematical models of anaerobic on a pilot-scale anaerobic bioreactor with computer monitoring system. Key words: Anaerobic digestion

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Anaerobic digestion for methane generation and ammonia reforming for hydrogen production  

E-Print Network (OSTI)

Anaerobic digestion for methane generation and ammonia reforming for hydrogen production Accepted 24 May 2013 Available online Keywords: Anaerobic digestion Ammonia Bioenergy Bioammonia Hydrogen Anaerobic digestion-bioammonia to hydrogen (ADBH) a b s t r a c t During anaerobic digestion, organic matter

42

Cascade Fuzzy Logic Controller for an Anaerobic Digester  

Science Conference Proceedings (OSTI)

A cascade controller is introduced for operating Up flow Anaerobic Sludge Blanket (UASB) digesters efficiently. The Upper-level controller is a Fuzzy Logic Controller (FLC) and the Lower-level controller is a conventional PI controller. The inner loop ...

Albino Martinez-Sibaja; Ruben Posada-Gomez; Alejandro Alvarado-Lassman; Angel Sebastia-Cortes

2007-09-01T23:59:59.000Z

43

Anaerobic Digestion of Food Waste?recycling Wastewater  

Science Conference Proceedings (OSTI)

Food waste?recycling (FWR) wastewater was evaluated as feedstock for two?stage anaerobic digestion at different hydraulic retention times (HRTs). The FWR wastewater tested contained high concentrations of organic materials and had chemical oxygen demand (COD) >130 g/L and volatile solids (VS) >55 g/L. Two identical two?stage anaerobic digesters were operated to investigate the performance at six HRTs ranging from 10–25 days. In the acidogenic reactor

Gyuseong Han; Seung Gu Shin; Juntaek Lim; Minho Jo; Seokhwan Hwang

2010-01-01T23:59:59.000Z

44

A mixed plug flow anaerobic digester for dairy manure  

SciTech Connect

In 1982, a ''mixed plug-flow'' anaerobic digester has been built to produce biogas from the manure of 350 dairy cows and, subsequently, to produce electricity for on-farm use only. This paper describes the digester and presents the main results of one year of technical follow-up.

Cournoyer, M.S.; Delisle, U.; Ferland, D.; Chagnon, R.

1985-01-01T23:59:59.000Z

45

Effect of alkaline pretreatment on anaerobic digestion of solid wastes  

Science Conference Proceedings (OSTI)

The introduction of the anaerobic digestion for the treatment of the organic fraction of municipal solid waste (OFMSW) is currently of special interest. The main difficulty in the treatment of this waste fraction is its biotransformation, due to the complexity of organic material. Therefore, the first step must be its physical, chemical and biological pretreatment for breaking complex molecules into simple monomers, to increase solubilization of organic material and improve the efficiency of the anaerobic treatment in the second step. This paper describes chemical pretreatment based on lime addition (Ca(OH){sub 2}), in order to enhance chemical oxygen demand (COD) solubilization, followed by anaerobic digestion of the OFMSW. Laboratory-scale experiments were carried out in completely mixed reactors, 1 L capacity. Optimal conditions for COD solubilization in the first step of pretreatment were 62.0 mEq Ca(OH){sub 2}/L for 6.0 h. Under these conditions, 11.5% of the COD was solubilized. The anaerobic digestion efficiency of the OFMSW, with and without pretreatment, was evaluated. The highest methane yield under anaerobic digestion of the pretreated waste was 0.15 m{sup 3} CH{sub 4}/kg volatile solids (VS), 172.0% of the control. Under that condition the soluble COD and VS removal were 93.0% and 94.0%, respectively. The results have shown that chemical pretreatment with lime, followed by anaerobic digestion, provides the best results for stabilizing the OFMSW.

Lopez Torres, M. [National Center for Scientific Researcher (CNIC), Environmental Pollution Department (DECA), Ave. 25 y 158, Cubanacan, Playa, Havana City (Cuba)], E-mail: matilde.lopez@cnic.edu.cu; Espinosa Llorens, Ma. del C. [National Center for Scientific Researcher (CNIC), Environmental Pollution Department (DECA), Ave. 25 y 158, Cubanacan, Playa, Havana City (Cuba)

2008-11-15T23:59:59.000Z

46

Kinetics and advanced digester design for anaerobic digestion of water hyacinth and primary sludge  

Science Conference Proceedings (OSTI)

A research program centered around a facility located at Walt Disney World (WDW) is in progress to evaluate the use of water hyacinth (WH) for secondary and tertiary wastewater treatment, to optimize growth of WH under these conditions, and to convert the resultant primary sludge (PS) and WH to methane via anaerobic digestion. This article describes the status of the biogasification component of this program, which includes baseline and advanced digestion experiments with individual feeds and blends and the design of an experimental test unit (ETU) to be installed at WDW. Experiments with several blends demonstrated that methane yields can be predicted from the fractional content and methane yield of each component. The process was found to adhere to the Monod kinetic model for microbial growth, and associated kinetic parameters were developed for various feed combinations. A novel upflow digester is achieving significantly higher conversion than a stirred-tank digester. Of several pretreatment techniques used, only alkaline treatment resulted in increased biodegradability. A larger scale (4.5 m/sup 3/) experimental test unit is being designed for installation at WDW in 1982. 13 figures, 4 tables.

Chynoweth, D.P.; Dolenc, D.A.; Ghosh, S.; Henry, M.P.; Jerger, D.E.; Srivastava, V.J.

1982-01-01T23:59:59.000Z

47

Anaerobic Digester Gas-to-Electricity Rebate and Performance Incentive |  

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

Anaerobic Digester Gas-to-Electricity Rebate and Performance Anaerobic Digester Gas-to-Electricity Rebate and Performance Incentive Anaerobic Digester Gas-to-Electricity Rebate and Performance Incentive < Back Eligibility Agricultural Commercial Industrial Institutional Local Government Nonprofit Residential Schools Tribal Government Savings Category Bioenergy Maximum Rebate Total Incentive: $2 million (combined production and capacity incentives) Fixed Base + Capacity Incentive: varies, limited to the total maximum incentive of $2 million minus the applicable performance incentive Program Info Funding Source RPS surcharge; NYPA Expiration Date 01/31/2013 State New York Program Type State Rebate Program Rebate Amount Fixed Base Incentive: varies Capacity Incentive: varies Production Incentive: $0.025/kWh production payment for new systems for up

48

Anaerobic digestion as a waste disposal option for American Samoa  

DOE Green Energy (OSTI)

Tuna sludge and municipal solid waste (MSW) generated on Tutuila Island, American Samoa, represent an ongoing disposal problem as well as an emerging opportunity for use in renewable fuel production. This research project focuses on the biological conversion of the organic fraction of these wastes to useful products including methane and fertilizer-grade residue through anaerobic high solids digestion. In this preliminary study, the anaerobic bioconversion of tuna sludge with MSW appears promising.

Rivard, C

1993-01-01T23:59:59.000Z

49

Anaerobic Digestion and Combined Heat and Power Study  

DOE Green Energy (OSTI)

One of the underlying objectives of this study is to recover the untapped energy in wastewater biomass. Some national statistics worth considering include: (1) 5% of the electrical energy demand in the US is used to treat municipal wastewater; (2) This carbon rich wastewater is an untapped energy resource; (3) Only 10% of wastewater treatment plants (>5mgd) recover energy; (4) Wastewater treatment plants have the potential to produce > 575 MW of energy nationwide; and (5) Wastewater treatment plants have the potential to capture an additional 175 MW of energy from waste Fats, Oils and Grease. The WSSC conducted this study to determine the feasibility of utilizing anaerobic digestion and combined heat and power (AD/CHP) and/or biosolids gasification and drying facilities to produce and utilize renewable digester biogas. Digester gas is considered a renewable energy source and can be used in place of fossil fuels to reduce greenhouse gas emissions. The project focus includes: (1) Converting wastewater Biomass to Electricity; (2) Using innovative technologies to Maximize Energy Recovery; and (3) Enhancing the Environment by reducing nutrient load to waterways (Chesapeake Bay), Sanitary Sewer Overflows (by reducing FOG in sewers) and Greenhouse Gas Emissions. The study consisted of these four tasks: (1) Technology screening and alternative shortlisting, answering the question 'what are the most viable and cost effective technical approaches by which to recover and reuse energy from biosolids while reducing disposal volume?'; (2) Energy recovery and disposal reduction potential verification, answering the question 'how much energy can be recovered from biosolids?'; (3) Economic environmental and community benefit analysis, answering the question 'what are the potential economic, environmental and community benefits/impacts of each approach?'; and (4) Recommend the best plan and develop a concept design.

Frank J. Hartz

2011-12-30T23:59:59.000Z

50

QUALITATIVE PROPERTIES OF A 3-STEPS MODEL OF ANAEROBIC DIGESTION INCLUDING HYDROLYSIS OF PARTICULATE MATTER  

E-Print Network (OSTI)

QUALITATIVE PROPERTIES OF A 3-STEPS MODEL OF ANAEROBIC DIGESTION INCLUDING HYDROLYSIS-SupAgro MISTEA, 2 p. Viala 34060 Montpellier, France, fekih@supagro.inra.fr Introduction. Anaerobic digestion, the anaerobic digestion is generally considered as a three step process: hydrolysis and liquefaction

Paris-Sud XI, Université de

51

Reduction of Antibiotic-Resistant Bacteria Present in Food Animal Manures by Composting and Anaerobic Digestion  

E-Print Network (OSTI)

and Anaerobic Digestion Frederick C. Michel, Food, Agricultural, and Biological Engineering Zhongtang Yu, Animal concluded that both anaerobic digestion and composting--especially at elevated temperatures--are effective effectiveness of anaerobic digestion and composting at high temperatures is of interest to industry

Jones, Michelle

52

Optimizing the anaerobic digestion of microalgae in a coupled Terence Bayen  

E-Print Network (OSTI)

Optimizing the anaerobic digestion of microalgae in a coupled process Terence Bayen , Francis by light and an anaerobic digester. The mathematical model for the dynamics of the reactors takes for sustainable energy production [2]. Anaerobic digestion can be applied to recover the energy stored

Recanati, Catherine

53

Reducing the Anaerobic Digestion Model N1 for its application to an industrial wastewater treatment plant  

E-Print Network (OSTI)

the Anaerobic Digestion Model N°1 for its application to an industrial wastewater treatment plant treating 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 Abstract The Anaerobic Digestion Model N°1 (ADM1., 2005). Anaerobic digestion process involves many interactions between species that may not all have

54

Bifurcation and stability analysis of a two step model for monitoring anaerobic digestion processes$  

E-Print Network (OSTI)

Bifurcation and stability analysis of a two step model for monitoring anaerobic digestion processes in simulation. Keywords: Anaerobic digestion, biotechnology, steady state analysis, $ This work was supported the phenomenologic behavior of anaerobic digestion systems following the idea that all the available information

Paris-Sud XI, Université de

55

Research review paper1 Anaerobic digestion of microalgae as a necessary step to make3  

E-Print Network (OSTI)

1 Research review paper1 2 Anaerobic digestion of microalgae as a necessary step to make3 of residual biomass and the17 high amounts of fertilizers must be considered. Anaerobic digestion is a key and concentrate methane is discussed.31 32 33 Keywords: anaerobic digestion, microalgae, biochemical methane

56

Anaerobic Co-digestion of Brown Water and Food Waste for Energy Recovery  

E-Print Network (OSTI)

LIM J.W. Anaerobic Co-digestion of Brown Water and Food Waste for Energy Recovery Jun Wei LIM, Singapore 639798 (E-mail: jwlim3@e.ntu.edu.sg) Abstract The anaerobic digestion of brown water (BW), food in a decentralized reactor via anaerobic digestion. The bio-methane potential of these substrates at different feed

Paris-Sud XI, Université de

57

Anaerobic digestion of the liquid fraction of dairy manure  

Science Conference Proceedings (OSTI)

The authors tested several solid liquid separation systems suitable for processing dairy manure prior to anaerobic digestion. None of the systems tried have completely satisfied the requirements. Evaluated effects of separation on biogas production. Unseparated dairy manure produced more biogas than the liquid fraction.

Haugen, V.; Dahlberg, S.; Lindley, J.A.

1983-06-01T23:59:59.000Z

58

Factors controlling pathogen destruction during anaerobic digestion of biowastes  

SciTech Connect

Anaerobic digestion is the principal method of stabilising biosolids from urban wastewater treatment in the UK, and it also has application for the treatment of other types of biowaste. Increasing awareness of the potential risks to human and animal health from environmental sources of pathogens has focused attention on the efficacy of waste treatment processes at destroying pathogenic microorganisms in biowastes recycled to agricultural land. The degree of disinfection achieved by a particular anaerobic digester is influenced by a variety of interacting operational variables and conditions, which can often deviate from the ideal. Experimental investigations demonstrate that Escherichia coli and Salmonella spp. are not damaged by mesophilic temperatures, whereas rapid inactivation occurs by thermophilic digestion. A hydraulic, biokinetic and thermodynamic model of pathogen inactivation during anaerobic digestion showed that a 2 log{sub 10} reduction in E. coli (the minimum removal required for agricultural use of conventionally treated biosolids) is likely to challenge most conventional mesophilic digesters, unless strict maintenance and management practices are adopted to minimise dead zones and by-pass flow. Efficient mixing and organic matter stabilisation are the main factors controlling the rate of inactivation under mesophilic conditions and not a direct effect of temperature per se on pathogenic organisms.

Smith, S.R. [Centre for Environmental Control and Waste Management, Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ (United Kingdom)]. E-mail: s.r.smith@imperial.ac.uk; Lang, N.L. [Centre for Environmental Control and Waste Management, Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ (United Kingdom); Cheung, K.H.M. [Centre for Environmental Control and Waste Management, Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ (United Kingdom); Spanoudaki, K. [Centre for Environmental Control and Waste Management, Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ (United Kingdom)

2005-07-01T23:59:59.000Z

59

April 16, 2013 Webinar: Community-Scale Anaerobic Digesters | Department of  

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

April 16, 2013 Webinar: Community-Scale Anaerobic Digesters April 16, 2013 Webinar: Community-Scale Anaerobic Digesters April 16, 2013 Webinar: Community-Scale Anaerobic Digesters This webinar was held April 16, 2013, and provided information on San Jose, California's, commercial-scale, high solids dry fermentation anaerobic digestion system, and the Forest County Potawatomi Community's (FCPC) anaerobic digester project. Download the presentations below, watch the webinar (WMV 125 MB), or view the text version. Find more CommRE webinars. Implementing Anaerobic Digestion in San Jose's Integrated Processing Infrastructure This presentation provided background on San Jose, California's, leading-edge program using the nation's first commercial-scale, high solids dry fermentation anaerobic digestion system to process commercial organics

60

Thermochemical Pretreatment for Anaerobic Digestion of Sorted Waste  

Science Conference Proceedings (OSTI)

The effect of alkaline hydrothermal pre?treatment for anaerobic digestion of mechanically?sorted municipal solid waste (MSW) and source?sorted waste was studied. Waste was hydrothermally pre?treated in dilute alkali solution. Hydrolysis product was incubated in 500 ml saline bottle to determine methane potential (MP) under mesospheric anaerobic conditions. Optimum reaction condition obtained in the study is 170?°C at the dose of 4 g NaOH/100 g solid for one hour. Soluble COD was 13936 mg/L and methane yield was 164 ml/g VS for 6 days incubation at optimum conditions. More than 50% biogas increase was achieved over the control

W. Hao; W. Hongtao

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Anaerobic digestion of livestock manures: A current opportunities casebook  

DOE Green Energy (OSTI)

Growth and concentration of the livestock industry creates new opportunities for proper disposal of the large quantities of manures generated at dairy, swine, and poultry farms. One manure management system provides not only pollution prevention but also converts a problem into a new profit center. Economic evaluations and case studies of operating systems indicate that the anaerobic digestion of livestock manures is a commercially-available bioconversion technology with considerable potential for providing profitable co-products, including a renewable fuel. An introduction to the engineering economies of these technologies is provided, based on estimates of digesters that generate electricity from the recovered methane. Regression models used to estimate digester cost and internal rate of return are developed from the evaluations. Case studies of operating digesters, including project and maintenance histories, and the operator`s {open_quotes}lessons learned{close_quotes}, are provided as a reality check.

Lusk, P.D.

1995-08-01T23:59:59.000Z

62

Department of Agricultural and Biological Engineering Fall 2011 Small Scale Anaerobic Digestion by PENERGY Solutions  

E-Print Network (OSTI)

by wood-fired boilers. By generating biogas through anaerobic digestion of swine manure, fuel can: A mechanical anaerobic digester to handle organic farm waste. A complete biogas collection system with hookPENNSTATE Department of Agricultural and Biological Engineering Fall 2011 Small Scale Anaerobic

Demirel, Melik C.

63

Micro-scale anaerobic digestion of point source components of organic fraction of municipal solid waste  

E-Print Network (OSTI)

Micro-scale anaerobic digestion of point source components of organic fraction of municipal solid that are needed when designing plug-flow type anaerobic bioreactors. More specifically, the decomposition patterns

Columbia University

64

Anaerobic Digesters in the Agricultural Sector: A Distributed Energy Resources Market Assessment  

Science Conference Proceedings (OSTI)

Regulatory pressure is creating a need for agricultural animal operations to better handle animal organic waste products. One option available to dairies, hog farms, and other operations to address these challenges is to develop anaerobic digesters. A by-product of anaerobic digesters is a methane rich gas that can be used for electric power generation and/or meeting thermal needs. This report explores the market potential for anaerobic digesters in the agricultural sector, and the role that electric pow...

2004-12-15T23:59:59.000Z

65

A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi Community- A Case Study  

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

Presented by Jason Rieth, Industrial Construction Executive at Miron Construction at the April 16, 2013, Community-Scale Anaerobic Digesters CommRE Webinar.

66

Pretreatment of Pulp Mill Wastewater Treatment Residues to Improve Their Anaerobic Digestion.  

E-Print Network (OSTI)

??Anaerobic digestion of excess biological wastewater treatment sludge (WAS) from pulp mills has the potential to reduce disposal costs and to generate energy through biogas… (more)

Wood, Nicholas

2009-01-01T23:59:59.000Z

67

Modeling Hydrogen Sulfide Adsorption by Activated Carbon made from Anaerobic Digestion By-product.  

E-Print Network (OSTI)

??Biogas, produced from anaerobic digestion of cattle manure, is an attractive alternative energy source as it is rich in methane. However, it is necessary to… (more)

Ho, Natalie

2012-01-01T23:59:59.000Z

68

Treatment program of organic matter by anaerobic digestion and composting (PTMOBC) (Quebec, Canada)  

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

The Program for processing of organic matter by anaerobic digestion and composting (PTMOBC) provides financial assistance to municipalities and the private sector for the installation of...

69

Anaerobic digestion analysis model: User`s manual  

DOE Green Energy (OSTI)

The Anaerobic Digestion Analysis Model (ADAM) has been developed to assist investigators in performing preliminary economic analyses of anaerobic digestion processes. The model, which runs under Microsoft Excel{trademark}, is capable of estimating the economic performance of several different waste digestion process configurations that are defined by the user through a series of option selections. The model can be used to predict required feedstock tipping fees, product selling prices, utility rates, and raw material unit costs. The model is intended to be used as a tool to perform preliminary economic estimates that could be used to carry out simple screening analyses. The model`s current parameters are based on engineering judgments and are not reflective of any existing process; therefore, they should be carefully evaluated and modified if necessary to reflect the process under consideration. The accuracy and level of uncertainty of the estimated capital investment and operating costs are dependent on the accuracy and level of uncertainty of the model`s input parameters. The underlying methodology is capable of producing results accurate to within {+-} 30% of actual costs.

Ruth, M.; Landucci, R.

1994-08-01T23:59:59.000Z

70

Deploying anaerobic digesters: Current status and future possibilities  

DOE Green Energy (OSTI)

Unmanaged pollutants from putrescible farm, industrial, and municipal wastes degrade in the environment, and methane emitted from their decomposition may contribute to global climate change. Under modern environmental regulations, these wastes are becoming difficult to dispose of using traditional means. One waste management system, anaerobic digestion or AD, not only provides pollution prevention but can also convert a disposal problem into a new profit center. This report is drawn from a special session of the Second Biomass Conference of the Americas. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.

Lusk, P. [International Energy Agency, Paris (France); Wheeler, P. [ETSU (United Kingdom); Rivard, C. [National Renewable Energy Lab., Golden, CO (United States)

1996-01-01T23:59:59.000Z

71

Tumble-mix anaerobic digestion of dry beef manure  

SciTech Connect

Anaerobic digestion of beef manure at an influent total solids concentration of 26% was demonstrated using an innovative tumble-mix fermenter. At an organic loading rate of 4.7 kg VS m-/sup 3/ d-/sup 1/ and a 23% VS influent concentration, a 54% volatile solids reduction was achieved. The average biogas production was 1.37 m/sup 3/ m-/sup 3/ d-/sup 1/ with a gas quality of 54% CH/sub 4/.

Kottwitz, D.; Schulte, D.D.

1982-12-01T23:59:59.000Z

72

Anaerobic Co-digestion of Chicken Processing Wastewater and Crude Glycerol from Biodiesel  

E-Print Network (OSTI)

The main objective of this thesis was to study the anaerobic digestion (AD) of wastewater from a chicken processing facility and of crude glycerol from local biodiesel operations. The AD of these substrates was conducted in bench-scale reactors operated in the batch mode at 35°C. The secondary objective was to evaluate two sources of glycerol as co-substrates for AD to determine if different processing methods for the glycerol had an effect on CH? production. The biogas yields were higher for co-digestion than for digestion of wastewater alone, with average yields at 1 atmosphere and 0°C of 0.555 and 0.540 L (g VS added)?¹, respectively. Another set of results showed that the glycerol from an on-farm biodiesel operation had a CH? yield of 0.702 L (g VS added)?¹, and the glycerol from an industrial/commercial biodiesel operation had a CH? yield of 0.375 L (g VS added)?¹. Therefore, the farm glycerol likely had more carbon content than industrial glycerol. It was believed that the farm glycerol had more impurities, such as free fatty acids, biodiesel and methanol. In conclusion, anaerobic co-digestion of chicken processing wastewater and crude glycerol was successfully applied to produce biogas rich in CH?.

Foucault, Lucas Jose

2011-08-01T23:59:59.000Z

73

On differential algebraic decision methods for the estimation of anaerobic digestion models  

Science Conference Proceedings (OSTI)

Monitoring and control of anaerobic digestion of organic wastes by microorganisms are parts of actual world efforts to preserve environment. The anaerobic digestion is a biochemical process in which microorganisms (or bacteria) biodegrade organic matters ... Keywords: characteristic set, differential algebra, differential algebraic decision methods, dynamic systems, observability, software sensors

Elena Chorukova; Sette Diop; Ivan Simeonov

2007-07-01T23:59:59.000Z

74

PRODUCTION OF VOLATILE FATTY ACIDS BY STRICTLY ANAEROBIC BACTERIA IN THE DIGESTIVE TRACT OF GNOTOXENIC MICE.  

E-Print Network (OSTI)

SUMMARY PRODUCTION OF VOLATILE FATTY ACIDS BY STRICTLY ANAEROBIC BACTERIA IN THE DIGESTIVE TRACT OF « GNOTOXENIC » MICE. INHIBITORY EFFECT ON SHIGELLA FLEXNERI Various strains of strictly anaerobic bacteria of holoxenic animals, were implanted in the digestive tract of axenic mice. The in vivo production of VFA

Recanati, Catherine

75

Dynamic estimation of specific growth rates and concentrations of bacteria for the anaerobic digestion  

E-Print Network (OSTI)

of the estimator performance. I. Introduction Anaerobic digestion is a biotechnological process with a promisingDynamic estimation of specific growth rates and concentrations of bacteria for the anaerobic digestion S. Diop1 and I. Simeonov2 Abstract-- The paper proposes an observability anal- ysis and estimation

76

Centralized Indirect Control of an Anaerobic Digestion Bioprocess Using Recurrent Neural Identifier  

Science Conference Proceedings (OSTI)

The paper proposed to use a Recurrent Neural Network Model (RNNM) and a dynamic Backpropagation learning for centralized identification of an anaerobic digestion bioprocess, carried out in a fixed bed and a recirculation tank of a wastewater treatment ... Keywords: Recurrent neural network model, anaerobic digestion bioprocess, backpropagation learning, distributed parameter system, sliding mode control, systems identification, wastewater treatment bioprocess

Ieroham S. Baruch; Rosalba Galvan-Guerra; Boyka Nenkova

2008-09-01T23:59:59.000Z

77

High Solid Anaerobic Co-digestion Pilot Scale Experiment of Kitchen Waste and Cow-dung  

Science Conference Proceedings (OSTI)

Under mesophilic condition (37°C), a bench-scale experiment based on high solid anaerobic digestion process was conducted in a fed-batch single phase reactor. The result shows: (1) According to gas production and ph value change, there are mainly ... Keywords: Kitchen waste, Cow-dung, High solid, Anaerobic co-digestion, Pilotsate

Lei Feng; Yan Chen; Rundong Li; Jie Xu

2012-05-01T23:59:59.000Z

78

Alternative method for producing organic fertiliser from anaerobic digestion liquor and limestone powder: High shear Wet Granulation  

E-Print Network (OSTI)

Ã?Ã? Ã? Ã?Ã?Ã? Ã? Ã?Ã? Alternative method for producing organic fertiliser from anaerobic digestion liquor.M. Walker, Alternative method for producing organic fertiliser from anaerobic digestion liquor and limestone method for producing organic fertiliser from Anaerobic Digestion liquor and limestone powder: High Shear

Paxton, Anthony T.

79

Can we assess the model complexity for a bioprocess ? Theory and example of the anaerobic digestion process  

E-Print Network (OSTI)

Can we assess the model complexity for a bioprocess ? Theory and example of the anaerobic digestion the bioreactor. This provides the dimension of K. The method is applied to data from an anaerobic digestion can be obtained with 2 biomasses. Keywords Anaerobic digestion; Bioreactors; Modelling; Nonlinear

Paris-Sud XI, Université de

80

ETHANOL PRODUCTION FROM DIFFERENT CARBON SOURCES USING ANAEROBICALLY DIGESTED AND WETOXIDISED MANURE AS NUTRIENT AND WATER SUPPLY  

E-Print Network (OSTI)

ETHANOL PRODUCTION FROM DIFFERENT CARBON SOURCES USING ANAEROBICALLY DIGESTED AND WETOXIDISED. The nutrients in anaerobically digested manure are sufficient for yeast fermentation, which means that the cost at 121o C was chosen as the most suitable method for pretreating anaerobically digested manure. Moreover

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Simulation of chemical reaction fronts in anaerobic digestion of solid waste  

Science Conference Proceedings (OSTI)

A case study for parallelisation of a code for a nonlinear system of evolution equations is presented. It describes the propagation of reaction fronts in anaerobic waste digestion. These occur as a consequence of heterogeneous initial distributions of ...

Hermann J. Eberl

2003-05-01T23:59:59.000Z

82

Effects of corn stover as carbon supplement on an integrated anaerobic digestion and ethanol fermentation process  

Science Conference Proceedings (OSTI)

An integrated anaerobic digestion (AD) and ethanol fermentation process on a mixed feedstock of dairy manure and corn stover was performed to investigate the influence of corn stover on biogas production

2013-01-01T23:59:59.000Z

83

Contribution of Anaerobic Digesters to Emissions Mitigation and Electricity Generation Under U.S. Climate Policy  

E-Print Network (OSTI)

Livestock husbandry in the U.S. significantly contributes to many environmental problems, including the release of methane, a potent greenhouse gas (GHG). Anaerobic digesters (ADs) break down organic wastes using bacteria ...

Zaks, David P. M.

84

Review of composting and anaerobic digestion of municipal solid waste and a methodological proposal for a mid-size city  

E-Print Network (OSTI)

Review of composting and anaerobic digestion of municipal solid waste and a methodological proposal and processes on composting and anaerobic digestion are compiled, showing the versatility and multivariable of the compost. In addition, anaerobic decomposition followed by vermicomposting is pointed as one of the best

Wisconsin-Milwaukee, University of

85

Effects of Fe2+ on the Anaerobic Digestion of Chicken Manure: A Batch Study  

Science Conference Proceedings (OSTI)

Trace elements are considered to be essential for anaerobic process. Laboratory-scale batch studies were undertaken to evaluate the effect of Fe2+on the biogas production from chicken manure at mesophilic condition (37 ±1°C). The biogas production ... Keywords: anaerobic digestion, chicken manure, dynamics, iron, stimulation and inhibition

Zhang Wanqin; Guo Jianbin; Wu Shubiao; Dong Renjie; Zhou Jie; Lang Qianqian; Li Xin; Lv Tao; Pang Changle; Chen Li; Wang Baozhi

2012-07-01T23:59:59.000Z

86

Analysis of the Changing Microbial Phase in an Underground River Anaerobic Digestion Reactor  

Science Conference Proceedings (OSTI)

The underground river anaerobic fermentation system was adopted in this experiment was that a pipeline buried underground just like an underground river. The hydrolysis, acidification and degradation of initial fermentation were carried out when raw ... Keywords: underground river anaerobic digestion reactor, microbial phase, methane-producing bacteria, dominant bacteria

Bingbing Li; Xiao Bo; Zhiquan Hu

2009-10-01T23:59:59.000Z

87

Anaerobic digestion of pressed off leachate from the organic fraction of municipal solid waste  

Science Conference Proceedings (OSTI)

A highly polluted liquid ('press water') was obtained from the pressing facility for the organic fraction of municipal solid waste in a composting plant. Methane productivity of the squeezed-off leachate was investigated in batch assays. To assess the technical feasibility of 'press water' as a substrate for anaerobic digestion, a laboratory-scale glass column reactor was operated semi-continuously at 37 {sup o}C. A high methane productivity of 270 m{sup -3} CH{sub 4} ton{sup -1} COD{sub added} or 490 m{sup -3} CH{sub 4} ton{sup -1} VS{sub added} was achieved in the batch experiment. The semi-continuously run laboratory-scale reactor was initially operated at an organic loading rate of 10.7 kg COD m{sup -3} d{sup -1}. The loading was increased to finally 27.7 kg COD m{sup -3} d{sup -1}, corresponding to a reduction of the hydraulic retention time from initially 20 to finally 7.7 days. During the digestion, a stable elimination of organic material (measured as COD elimination) of approximately 60% was achieved. Linearly with the increment of the OLR, the volumetric methane production of the reactor increased from 2.6 m{sup 3} m{sub reactor}{sup -3} d{sup -1} to 7.1 m{sup 3} m{sub reactor}{sup -3} d{sup -1}. The results indicated that 'press water' from the organic fraction of municipal solid waste was a suitable substrate for anaerobic digestion which gave a high biogas yield even at very high loading rates.

Nayono, Satoto E. [Department of Civil Engineering, Yogyakarta State University, Campus UNY Karangmalang Yogyakarta 55281 (Indonesia); Institute of Biology for Engineers and Biotechnology of Wastewater, University of Karlsruhe, Am Fasanengarten, 76131 Karlsruhe (Germany); Winter, Josef, E-mail: josef.winter@iba.uka.d [Institute of Biology for Engineers and Biotechnology of Wastewater, University of Karlsruhe, Am Fasanengarten, 76131 Karlsruhe (Germany); Gallert, Claudia [Institute of Biology for Engineers and Biotechnology of Wastewater, University of Karlsruhe, Am Fasanengarten, 76131 Karlsruhe (Germany)

2010-10-15T23:59:59.000Z

88

1190 J. ENVIRON. QUAL., VOL. 26, JULY-AUGUST 1997 Proc. lnt. Symp. on Anaerobic Digestion of Soild Waste, Venice,  

E-Print Network (OSTI)

1190 J. ENVIRON. QUAL., VOL. 26, JULY-AUGUST 1997 Proc. lnt. Symp. on Anaerobic Digestion of Soild USSR. Chemosphere 26:401-417. Orlygsson, J., F.P. Houwen, and B.H. Svensson. 1993. Anaerobic

Fischlin, Andreas

89

Anaerobic Digestion of Corn Ethanol Thin Stillage for Biogas Production in Batch and By Downflow Fixed Film Reactor .  

E-Print Network (OSTI)

??Anaerobic digestion (AD) of corn thin stillage (CTS) offers the potential to reduce corn grain ethanol production energy consumption. This thesis focuses on results collected… (more)

Wilkinson, Andrea

2011-01-01T23:59:59.000Z

90

Decomposition of Fresh and Anaerobically Digested Plant Biomass in Soil1 K. K. MOORHEAD, D. A, GRAETZ, AND K. R. REDDY2  

E-Print Network (OSTI)

Decomposition of Fresh and Anaerobically Digested Plant Biomass in Soil1 K. K. MOORHEAD, D. A to produce CH4 or added to soil directly as an amendment.In this study, fresh and anaerobically digested digested plant biomass in soil. J. En- viron. Qual. 16:25-28. Anaerobic digestion of organic materials

Florida, University of

91

Long-term anaerobic digestion of food waste stabilized by trace elements  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Korean food waste was found to contain low level of trace elements. Black-Right-Pointing-Pointer Stable anaerobic digestion of food waste was achieved by adding trace elements. Black-Right-Pointing-Pointer Iron played an important role in anaerobic digestion of food waste. Black-Right-Pointing-Pointer Cobalt addition further enhanced the process performance in the presence of iron. - Abstract: The purpose of this study was to examine if long-term anaerobic digestion of food waste in a semi-continuous single-stage reactor could be stabilized by supplementing trace elements. Contrary to the failure of anaerobic digestion of food waste alone, stable anaerobic digestion of food waste was achieved for 368 days by supplementing trace elements. Under the conditions of OLR (organic loading rates) of 2.19-6.64 g VS (volatile solid)/L day and 20-30 days of HRT (hydraulic retention time), a high methane yield (352-450 mL CH{sub 4}/g VS{sub added}) was obtained, and no significant accumulation of volatile fatty acids was observed. The subsequent investigation on effects of individual trace elements (Co, Fe, Mo and Ni) showed that iron was essential for maintaining stable methane production. These results proved that the food waste used in this study was deficient in trace elements.

Zhang Lei, E-mail: wxzyfx@yahoo.com [Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024 (China); Jahng, Deokjin, E-mail: djahng@mju.ac.kr [Department of Environmental Engineering and Biotechnology, Myongji University, San 38-2, Namdong, Cheoin-Gu, Yongin, Gyeonggi-Do 449-728 (Korea, Republic of)

2012-08-15T23:59:59.000Z

92

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

synthetic natural gas (SNG) via anaerobic decomposition byof algal substrate for an SNG process involves increasingof characteristics for SNG production. Limiting factors in

Haven, Kendall F.

2011-01-01T23:59:59.000Z

93

Treatment of municipal landfill leachate using a combined anaerobic digester and activated sludge system  

Science Conference Proceedings (OSTI)

The main objective of this study was to assess the feasibility of treating sanitary landfill leachate using a combined anaerobic and activated sludge system. A high-strength leachate from Shiraz municipal landfill site was treated using this system. A two-stage laboratory-scale anaerobic digester under mesophilic conditions and an activated sludge unit were used. Landfill leachate composition and characteristics varied considerably during 8 months experiment (COD concentrations of 48,552-62,150 mg/L). It was found that the system could reduce the COD of the leachate by 94% at a loading rate of 2.25 g COD/L/d and 93% at loading rate of 3.37 g COD/L/d. The anaerobic digester treatment was quite effective in removing Fe, Cu, Mn, and Ni. However, in the case of Zn, removal efficiency was about 50%. For the rest of the HMs the removal efficiencies were in the range 88.8-99.9%. Ammonia reduction did not occur in anaerobic digesters. Anaerobic reactors increased alkalinity about 3.2-4.8% in the 1st digester and 1.8-7.9% in the 2nd digester. In activated sludge unit, alkalinity and ammonia removal efficiency were 49-60% and 48.6-64.7%, respectively. Methane production rate was in the range of 0.02-0.04, 0.04-0.07, and 0.02-0.04 L/g COD{sub rem} for the 1st digester, the 2nd digester, and combination of both digesters, respectively; the methane content of the biogas varied between 60% and 63%.

Kheradmand, S. [Department of Civil and Environmental Engineering, University of Shiraz, Shiraz 7134851156 (Iran, Islamic Republic of); Karimi-Jashni, A., E-mail: akarimi@shirazu.ac.i [Department of Civil and Environmental Engineering, University of Shiraz, Shiraz 7134851156 (Iran, Islamic Republic of); Sartaj, M. [Department of Civil Engineering, Isfahan University of Technology, Isfahan 841568311 (Iran, Islamic Republic of)

2010-06-15T23:59:59.000Z

94

Correlation between Organic Matter Degradation and the Rheological Performance of Waste Sludge During Anaerobic Digestion  

Science Conference Proceedings (OSTI)

Anaerobic digestion has demonstrated to be a good possibility to reduce the organic matter contents in waste activated sludge resulting in the effluents treatment. An anaerobic digestion was carried out in a 3.5 L reactor at 35?°C for a period of 20 days. An electronic thermostat controlled the temperature. The reactor was agitated at a rate of 200 rpm. The study of the rheological behavior of the waste activated sludge was done with an Anton Paar™ rheometer model MCR301 with a peltier plate for temperature control. Four?blade vane geometry was used with samples of 37 mL for determining rheological properties. Sampling (two samples) was taken every four days of anaerobic digestion through a peristaltic pump. The samples behavior was characterized by the Herschel?Bulkley model

Evangelina S. Morel; José A. Hernández?Hernándes; Juan M. Méndez?Contreras; Denis Cantú?Lozano

2008-01-01T23:59:59.000Z

95

An environmental assessment of recovering methane from municipal solid waste by anaerobic digestion  

Science Conference Proceedings (OSTI)

The development of an experimental process which produces synthetic natural gas (SNG) or biogas by anaerobic digestion of municipal solid waste (MSW) is evaluated. This technology, if implemented, would be utilized in lieu of incineration or directly landfilling waste. An environmental assessment describing the principal impacts associated with operating the MSW anaerobic digestion process is presented. Variations in process configurations provide for SNG or electricity production and digester residue incineration, composting, or landfilling. Four process configuration are compared to the conventional solid waste disposal alternative of mass burn incineration and landfilling. Emissions are characterized, effluents quantified, and landfill areas predicted. The quantity of SNG and electricity recovered, and aluminum and ferrous metals recycled is predicted along with the emissions and effluents avoided by recovering energy and recycling metals. Air emissions are the primary on-site concern with the anaerobic digestion process. However, when compared to mass burn incineration, the projected particulate emissions for the anaerobic digestion process range from 2.9 {times} 10{sup {minus}6} to 2.6 {times} {sup 10{minus}5} pounds per ton of waste vs. 3.3 {times} 10{sup {minus}5} pounds per ton for mass burn. SO{sub 2}, NO{sub x}, and PCCD emissions have a similar relationship.

O'Leary, P.R.

1989-01-01T23:59:59.000Z

96

Comparison of different liquid anaerobic digestion effluents as inocula and nitrogen sources for solid-state batch anaerobic digestion of corn stover  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Compared methane production of solid AD inoculated with different effluents. Black-Right-Pointing-Pointer Food waste effluent (FWE) had the largest population of acetoclastic methanogens. Black-Right-Pointing-Pointer Solid AD inoculated with FWE produced the highest methane yield at F/E ratio of 4. Black-Right-Pointing-Pointer Dairy waste effluent (DWE) was rich of cellulolytic and xylanolytic bacteria. Black-Right-Pointing-Pointer Solid AD inoculated with DWE produced the highest methane yield at F/E ratio of 2. - Abstract: Effluents from three liquid anaerobic digesters, fed with municipal sewage sludge, food waste, or dairy waste, were evaluated as inocula and nitrogen sources for solid-state batch anaerobic digestion of corn stover in mesophilic reactors. Three feedstock-to-effluent (F/E) ratios (i.e., 2, 4, and 6) were tested for each effluent. At an F/E ratio of 2, the reactor inoculated by dairy waste effluent achieved the highest methane yield of 238.5 L/kgVS{sub feed}, while at an F/E ratio of 4, the reactor inoculated by food waste effluent achieved the highest methane yield of 199.6 L/kgVS{sub feed}. The microbial population and chemical composition of the three effluents were substantially different. Food waste effluent had the largest population of acetoclastic methanogens, while dairy waste effluent had the largest populations of cellulolytic and xylanolytic bacteria. Dairy waste also had the highest C/N ratio of 8.5 and the highest alkalinity of 19.3 g CaCO{sub 3}/kg. The performance of solid-state batch anaerobic digestion reactors was closely related to the microbial status in the liquid anaerobic digestion effluents.

Xu Fuqing; Shi Jian [Department of Food, Agricultural and Biological Engineering, Ohio State University, Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691 (United States); Lv Wen; Yu Zhongtang [Department of Animal Sciences, Ohio State University, Columbus, OH 43210 (United States); Li Yebo, E-mail: li.851@osu.edu [Department of Food, Agricultural and Biological Engineering, Ohio State University, Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691 (United States)

2013-01-15T23:59:59.000Z

97

Investigation of microalgae cultivation and anaerobic codigestion of algae and sewage sludge for wastewater treatment facilities.  

E-Print Network (OSTI)

??The main goals of this research are to investigate the anaerobic digestibility of algae and to investigate the effects of growth media on the growth… (more)

Wang, Meng

2013-01-01T23:59:59.000Z

98

Intermediate-scale high-solids anaerobic digestion system operational development  

DOE Green Energy (OSTI)

Anaerobic bioconversion of solid organic wastes represents a disposal option in which two useful products may be produced, including a medium Btu fuel gas (biogas) and a compost-quality organic residue. The application of high-solids technology may offer several advantages over conventional low-solids digester technology. Operation of the anaerobic digestion process at high solids reduces the level of process water and thereby the size and capital costs for the digester system. In addition, by virtue of the lack of available water, the microbial catalysts are more productive in feedstock polymer hydrolysis. The National Renewable Energy Laboratory (NREL) has developed a unique digester system capable of uniformly mixing high-solids materials at low cost. Information gained from laboratory-scale digester research was used to develop die intermediate-scale digester system. This system represents a 50-fold scale-up of the original digester system and includes continuous feed addition and computer monitoring and control. During the first 1.15 years of operation, a variety of modifications and improvements were instituted to increase the safety, reliability, and performance of the system. Those improvements -- which may be critical in further scale-up efforts using the NREL high-solids digester design -- are detailed in this report.

Rivard, C.J.

1995-02-01T23:59:59.000Z

99

Optimizing the anaerobic digestion of microalgae in a coupled process Terence Bayen1,4 and Francis Mairet2 and Pierre Martinon3 and Matthieu Sebbah4  

E-Print Network (OSTI)

Optimizing the anaerobic digestion of microalgae in a coupled process Terence Bayen1,4 and Francis the production of methane in a bioreactor coupling an anaerobic digester and a culture of micro-algae limited as an attractive alternative for sustainable energy production [2]. Anaerobic digestion can be applied to convert

Paris-Sud XI, Université de

100

Compost filters for H/sub 2/S removal from anaerobic digestion and rendering exhausts  

Science Conference Proceedings (OSTI)

A system for the disposal of anaerobic digester gas from meat waste treatment plants has been developed as an alternative to atmospheric disposal. Hydrogen sulfide waste gases are filtered through by-product compost. Operation and effectiveness of such a treatment process are detailed. (2 diagrams, 5 references, 4 tables)

Rands, M.B.; Cooper, D.E.; Woo, C.; Fletcher, G.C.; Rolfe, K.A.

1981-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" from the National Library of EnergyBeta (NLEBeta).
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101

Manual of procedures for the operation of bench-scale anaerobic digesters  

DOE Green Energy (OSTI)

The successful operation of any laboratory-scale biological system is often a difficult and frustrating experience. This is especially true when dealing with the anaerobic digestion process. Because of the stringent environmental requirements associated with anaerobic digesters, efficient operation of bench-scale units requires rigid monitoring and control. The purpose of this manual is to present the methods and procedures which are followed in bench-scale anaerobic digestion studies at Pacific Northwest Laboratory (PNL). Among the topics discussed are operating parameters, a description of the experimental system, typical digestion substrates, operational procedures, analytical techniques, and safety considerations. The document serves as a technical guide to PNL personnel assigned to a U.S. Department of Energy sponsored program evaluating the effect of powdered activated carbon on the anaerobic digestio of sewage sludge. It should be noted that the methods described in this manual do not necessarily represent the best or only means of conducting the research. They are merely procedures that have been found to be successful at PNL. It is hoped that this information may be useful to other researchers who are contemplating or pursuing bench-scale studies of their own.

Spencer, R.R.

1978-12-01T23:59:59.000Z

102

A Study on Biogas from Anaerobic Digestion with the Distiller's Grains via Lactic Acid Fermentation  

Science Conference Proceedings (OSTI)

The methane production of the distiller’s grains via lactic acid fermentation (shorter for the fermentation residue) was investigated, and the variable trend of pH values, alkali concentration and volatile fatty acids were examined. The results ... Keywords: the residue of distillers' grains via lactic acid fermentation, biomass wastes, anaerobic digestion, volatile fatty acids, biogas production

Li-Hong Wang; Wang Qunhui; Sun Xiaohong; Xin Zhao

2010-12-01T23:59:59.000Z

103

Water as a leaching medium for hydrolysis of sorghum in anaerobic digestion systems  

Science Conference Proceedings (OSTI)

Laboratory experiments were conducted to determine the effect of using water to leach hydrolysis products from sorghum used as an anaerobic digestion feedstock. The pH of the leachate had no effect on the cumulative COD measured in the leachate. Milling the sorghum with a three roll mill prior to leaching appeared to slightly increase the hydrolysis of structural carbohydrates in the sorghum.

Egg, R.; Coble, C.G.

1986-01-01T23:59:59.000Z

104

Benefits of supplementing an industrial waste anaerobic digester with energy crops for increased biogas production  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer This study demonstrates the feasibility of co-digestion food industrial waste with energy crops. Black-Right-Pointing-Pointer Laboratory batch co-digestion led to improved methane yield and carbon to nitrogen ratio as compared to mono-digestion of industrial waste. Black-Right-Pointing-Pointer Co-digestion was also seen as a means of degrading energy crops with nutrients addition as crops are poor in nutrients. Black-Right-Pointing-Pointer Batch co-digestion methane yields were used to predict co-digestion methane yield in full scale operation. Black-Right-Pointing-Pointer It was concluded that co-digestion led an over all economically viable process and ensured a constant supply of feedstock. - Abstract: Currently, there is increasing competition for waste as feedstock for the growing number of biogas plants. This has led to fluctuation in feedstock supply and biogas plants being operated below maximum capacity. The feasibility of supplementing a protein/lipid-rich industrial waste (pig manure, slaughterhouse waste, food processing and poultry waste) mesophilic anaerobic digester with carbohydrate-rich energy crops (hemp, maize and triticale) was therefore studied in laboratory scale batch and continuous stirred tank reactors (CSTR) with a view to scale-up to a commercial biogas process. Co-digesting industrial waste and crops led to significant improvement in methane yield per ton of feedstock and carbon-to-nitrogen ratio as compared to digestion of the industrial waste alone. Biogas production from crops in combination with industrial waste also avoids the need for micronutrients normally required in crop digestion. The batch co-digestion methane yields were used to predict co-digestion methane yield in full scale operation. This was done based on the ratio of methane yields observed for laboratory batch and CSTR experiments compared to full scale CSTR digestion of industrial waste. The economy of crop-based biogas production is limited under Swedish conditions; therefore, adding crops to existing industrial waste digestion could be a viable alternative to ensure a constant/reliable supply of feedstock to the anaerobic digester.

Nges, Ivo Achu, E-mail: Nges.Ivo_Achu@biotek.lu.se [Department of Biotechnology, Lund University, P.O. Box 124, SE 221 00 Lund (Sweden); Escobar, Federico; Fu Xinmei; Bjoernsson, Lovisa [Department of Biotechnology, Lund University, P.O. Box 124, SE 221 00 Lund (Sweden)

2012-01-15T23:59:59.000Z

105

Methanogenic Population Dynamics during Start-Up of Anaerobic Digesters Treating Municipal Solid Waste  

E-Print Network (OSTI)

Abstract: An aggressive start-up strategy was used to initiate codigestion in two anaerobic, continuously mixed bench-top reactors at mesophilic (37°C) and thermophilic (55°C) conditions. The digesters were inoculated with mesophilic anaerobic sewage sludge and cattle manure and were fed a mixture of simulated municipal solid waste and biosolids in proportions that reflect U.S. production rates. The design organic loading rate was 3.1 kg volatile solids/m 3 /day and the retention time was 20 days. Ribosomal RNA-targeted oligonucleotide probes were used to determine the methanogenic community structure in the inocula and the digesters. Chemical analyses were performed to evaluate digester performance. The aggressive start-up strategy was successful for the thermophilic reactor, despite the use of a

Biosolids; Matt E. Griffin; Katherine D. Mcmahon; Roderick I. Mackie; Lutgarde Raskin

1997-01-01T23:59:59.000Z

106

Enhancement of methane production in the anaerobic digestion of sewage sludges  

DOE Green Energy (OSTI)

The effect of powdered activated carbon on stressed anaerobic digesters utilizing a sewage sludge substrate was evaluated. The addition of carbon resulted in increased methanee production and greater process stability. The degree of enhancement appeared to be proportional to carbon concentration over the dose range studied (500-10,000 mg/l). A maximum increase in methane production of about 150% was observed at the highest carbon dose. The effect of 1500 mg/l carbon, 4000 mg/l coal, and 4000 mg/l flyash on relatively unstressed digesters was also examined. Units using a sewage sludge substrate were operated at 10 and 20 day SRT's. A 12% increase in methane production was observed in a carbon dosed digester functioning at a 10 day detention time. Enhancement was not evident with carbon at a 20 day SRT. No significant improvement in methane production was obtained in any of the digesters using coal or flyash as additives. Using the experimental data, a technique was developed for estimating the efficiencies of the methane forming and acid forming steps in the anaerobic digestion process. The results indicated that in stressed systems both stages of the digestion process were enhanced by the addition of powdered carbon. In the relatively unstressed systems, when enhancement did occur, only the scid forming step was affected. This information will supplement current research at determining the mechanism(s) by which carbon enhances the digestion process.Based on the results of this study, it appears that the benefits of carbon addition are greatest in stressed systems. Only very moderate increases in methane production would probably be attainable in well operating digesters. Coal and flyash do not seem to be effective in enhancing gas production in unstressed systems. However, their effectiveness has not been tested in stressed situations.

Spencer, R.R.

1978-05-10T23:59:59.000Z

107

Biomass Program Perspectives on Anaerobic Digestion and Fuel...  

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

Organic Recycling and Renewable Energy Facility And Recycles the Organics Quality Compost Effluent Liquid Fertilizer Landfill Daily Cover Retail Products Bio- remediation And...

108

Study of the operational conditions for anaerobic digestion of urban solid wastes  

SciTech Connect

This paper describes an experimental evaluation of anaerobic digestion technology as an option for the management of organic solid waste in developing countries. As raw material, a real and heterogeneous organic waste from urban solid wastes was used. In the first experimental phase, seed selection was achieved through an evaluation of three different anaerobic sludges coming from wastewater treatment plants. The methanization potential of these sludges was assessed in three different batch digesters of 500 mL, at two temperature levels. The results showed that by increasing the temperature to 15 deg. C above room temperature, the methane production increases to three times. So, the best results were obtained in the digester fed with a mixed sludge, working at mesophilic conditions (38-40 deg. C). Then, this selected seed was used at the next experimental phase, testing at different digestion times (DT) of 25, 20 and 18 days in a bigger batch digester of 20 L with a reaction volume of 13 L. The conversion rates were registered at the lowest DT (18 days), reaching 44.9 L/kg{sup -1} of wet waste day{sup -1}. Moreover, DT also has a strong influence over COD removal, because there is a direct relationship between solids removal inside the reactor and DT.

Castillo M, Edgar Fernando [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aereo 678, Bucaramanga (Colombia)]. E-mail: efcastil@uis.edu.co; Cristancho, Diego Edison [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aereo 678, Bucaramanga (Colombia); Victor Arellano, A. [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9a Carrera 27, Aptdo. Aereo 678, Bucaramanga (Colombia)

2006-07-01T23:59:59.000Z

109

Enhanced biogas production by increasing organic load rate in mesophilic anaerobic digestion with sludge recirculation.  

E-Print Network (OSTI)

?? For enhancing anaerobic sludge digestion and biogas recovery, an increase in organic load rate (OLR) from 1.0 to 3.0kgVS/(m3·day) was imposed upon a new… (more)

Huang, Zhanzhao

2012-01-01T23:59:59.000Z

110

Microwave Thermal Hydrolysis Of Sewage Sludge As A Pretreatment Stage For Anaerobic Digestion  

Science Conference Proceedings (OSTI)

This article focuses on the effects of microwave thermal hydrolysis on sewage sludge anaerobic digestion. Volatile suspended solid (VSS) and COD solubilization of treated sludge were investigated. It was found that the microwave hydrolysis provided a rapid and efficient process to release organics from sludge. The increase of organic dissolution ratio was not obvious when holding time was over 5 min. The effect of the VSS solubilization was mainly dependent on temperature. The highest value of VSS dissolving ratio

W. Qiao; W. Wang; R. Xun

2008-01-01T23:59:59.000Z

111

Anaerobic Digestion of Algal Biomass Residues with Nutrient Recycle Microalgae are currently considered as a renewable source of liquid and gaseous biofuels and  

E-Print Network (OSTI)

#12;1 Anaerobic Digestion of Algal Biomass Residues with Nutrient Recycle Background Microalgae a lower- value use and simpler processing approach representative of anaerobic digestion (AD) (Sialve et-in replacements of gasoline, diesel, and jet fuel (Jones & Mayfield, 2012; Regalbuto, 2009), and anaerobically

Collins, Gary S.

112

Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano  

SciTech Connect

Quinoa stalk (Chenopodium quinoa Willd.) from agricultural crop residue, totora (Schoenoplectus tatora) and o-macrophytes (aquatic flora) from Lake Titicaca (on the Bolivian Altiplano) were studied in a wet anaerobic co-digestion process together with manure from llama, cow and sheep. Anaerobic semi-continuous experiments were performed in (10) 2-l reactors at a temperature of 25 deg. C with 30 days of hydraulic retention time (HRT) and an organic loading rate (OLR) of 1.8 kg VS m{sup -3} d{sup -1}. Totora was found to be the best co-substrate. In mixture ratios of 1:1 (VS basis), it increased the biogas productivity by 130% for llama manure, 60% for cow manure, and 40% for sheep manure. It was possible to use up to 58% (VS basis) of totora in the substrate. Higher concentrations (including pure totora) could not be digested, as that caused acidification problems similar to those caused by other lignocellulosic materials. When quinoa and o-macrophytes were used as co-substrates, the increase in biogas productivity was slightly less. However, these co-substrates did not cause any operational problems. An additional advantage of quinoa and o-macrophytes was that they could be used in any proportion (even in pure form) without causing any destabilization problems in the anaerobic digestion process.

Alvarez, Rene [IIDEPROQ, UMSA, Plaza del Obelisco 1175, La Paz (Bolivia)], E-mail: Rene.alvarez@iideproq.org; Liden, Gunnar [Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund (Sweden)

2008-07-01T23:59:59.000Z

113

Intermediate-Scale High-Solids Anaerobic Digestion System Operational Development  

SciTech Connect

Anaerobic bioconversion of solid organic wastes represents a disposal option in which two useful products may be produced, including a medium Btu fuel gas (biogas) and a compost-quality organic residue. The application of high-solids technology may offer several advantages over conventional low-solids digester technology. The National Renewable Energy Laboratory (NREL) has developed a unique digester system capable of uniformly mixing high-solids materials at low cost. During the first 1.5 years of operation, a variety of modifications and improvements were instituted to increase the safety, reliability, and performance of the system. Those improvements, which may be critical in further scale-up efforts using ,the NREL high-solids digester design are detailed in this report.

Rivard, C. J.

1995-02-01T23:59:59.000Z

114

Study on the Methane Production Capacity and Energy Output of Different Temperatures during Anaerobic Digestion of Swine Manure  

Science Conference Proceedings (OSTI)

This study was carried out by experimenting with the self-manufactured digestion devices which were fed with swine manure as material with a domesticated inoculums added as yeast. The experiment was on the condition of 6.6% mass fraction of total solid, ... Keywords: anaerobic digestion, methane production capacity, temperature, energy, swine manure

Rong-rong Wei; Guan-wen Cheng; Jie-jun Luo; Liang Ling; Zong-qiang Zhu; Xu Shan; Wen-yuan Wei

2009-10-01T23:59:59.000Z

115

Digestion of frozen/thawed food waste in the hybrid anaerobic solid-liquid system  

SciTech Connect

The hybrid anaerobic solid-liquid (HASL) system, which is a modified two-phase anaerobic digester, is to be used in an industrial scale operation to minimize disposal of food waste at incineration plants in Singapore. The aim of the present research was to evaluate freezing/thawing of food waste as a pre-treatment for its anaerobic digestion in the HASL system. The hydrolytic and fermentation processes in the acidogenic reactor were enhanced when food waste was frozen for 24 h at -20 deg. C and then thawed for 12 h at 25 deg. C (experiment) in comparison with fresh food waste (control). The highest dissolved COD concentrations in the leachate from the acidogenic reactors were 16.9 g/l on day 3 in the control and 18.9 g/l on day 1 in the experiment. The highest VFA concentrations in the leachate from the acidogenic reactors were 11.7 g/l on day 3 in the control and 17.0 g/l on day 1 in the experiment. The same volume of methane was produced during 12 days in the control and 7 days in the experiment. It gave the opportunity to diminish operational time of batch process by 42%. The effect of freezing/thawing of food waste as pre-treatment for its anaerobic digestion in the HASL system was comparable with that of thermal pre-treatment of food waste at 150 deg. C for 1 h. However, estimation of energy required either to heat the suspended food waste to 150 deg. C or to freeze the same quantity of food waste to -20 deg. C showed that freezing pre-treatment consumes about 3 times less energy than thermal pre-treatment.

Stabnikova, O. [School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)], E-mail: costab@ntu.edu.sg; Liu, X.Y.; Wang, J.Y. [School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore)

2008-07-01T23:59:59.000Z

116

Enhanced anaerobic treatment of CSTR-digested effluent from chicken manure: The effect of ammonia inhibition  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Enhanced anaerobic treatment of CSTR-digested effluent from chicken manure. Black-Right-Pointing-Pointer The SCOD/TAN (soluble COD/total ammonia nitrogen) ratio was key controlling factor. Black-Right-Pointing-Pointer The threshold of the SCOD/TAN ratio was 2.4 at an influent pH of 8.5-9. - Abstract: The effect of ammonia inhibition was evaluated during the enhanced anaerobic treatment of digested effluent from a 700 m{sup 3} chicken-manure continuous stirred tank reactor (CSTR). A 12.3 L internal circulation (IC) reactor inoculated with an anaerobic granular sludge and operated at 35 {+-} 1 Degree-Sign C was employed for the investigation. With a corresponding organic loading rate of 1.5-3.5 kg-COD/m{sup 3} d over a hydraulic retention time of 1.5 d, a maximum volumetric biogas production rate of 1.2 m{sup 3}/m{sup 3} d and TCOD (total COD) removal efficiency ranging from 70% to 80% was achieved. However, the continual increase in the influent TAN content led to ammonia inhibition in the methanogenesis system. The SCOD/TAN (soluble COD/total ammonia nitrogen) ratio was presented to be the key controlling factor for the anaerobic treatment of semi-digested chicken manure, and further validation through shock loading and ammonia inhibition experiments was conducted. The threshold value of the SCOD/TAN ratio was determined to be 2.4 (corresponding to a TAN of 1250 mg/L) at an influent pH of 8.5-9.

Liu Zhanguang; Zhou Xuefei [Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution and Resource Reuse, Tongji University, Shanghai 200092 (China); Zhang Yalei, E-mail: zhangyalei2003@163.com [Key Laboratory of Yangtze Water Environment of Ministry of Education, State Key Laboratory of Pollution and Resource Reuse, Tongji University, Shanghai 200092 (China); Zhu Hongguang [Institute of Modern Agricultural Science and Engineering, National Engineering Research Center of Protected Agriculture, Tongji University, Shanghai 200092 (China)

2012-01-15T23:59:59.000Z

117

Kinetics and dynamic modelling of batch anaerobic digestion of municipal solid waste in a stirred reactor  

SciTech Connect

A series of batch, slurry anaerobic digestion experiments were performed where the soluble and insoluble fractions, and unwashed MSW were separately digested in a 200 l stirred stainless steel vessel at a pH of 7.2 and a temperature of 38 deg. C. It was found that 7% of the total MSW COD was readily soluble, of which 80% was converted to biogas; 50% of the insoluble fraction was solubilised, of this only 80% was converted to biogas. The rate of digesting the insoluble fraction was about four times slower than the rate of digesting the soluble fraction; 48% of the total COD was converted to biogas and 40% of the total nitrogen was converted to ammonia. Soluble and insoluble fractions were broken down simultaneously. The minimum time to convert 95% of the degradable fraction to biogas was 20 days. The lag phase for the degradation of insoluble fraction of MSW can be overcome by acclimatising the culture with the soluble fraction. The rate of digestion and the methane yield was not affected by particle size (within the range of 2-50 mm). A dynamic model was developed to describe batch digestion of MSW. The parameters of the model were estimated using data from the separate digestion of soluble and insoluble fractions and validated against data from the digestion of unwashed MSW. Trends in the specific aceticlastic and formate-utilising methanogenic activity were used to estimate initial methanogenic biomass concentration and bacterial death rate coefficient. The kinetics of hydrolysis of insoluble fraction could be adequately described by a Contois equation and the kinetics of acidogenesis, and aceticlastic and hydrogen utilising methanogenesis by Monod equations.

Nopharatana, Annop [Division of Environmental of Engineering, The University of Queensland, Brisbane, Qld. 4072 (Australia); Pilot Plant Development and Training Institute, King Mongkut's University of Technology, Thonburi, Bangkok 10150 (Thailand); Pullammanappallil, Pratap C. [Division of Environmental of Engineering, The University of Queensland, Brisbane, Qld. 4072 (Australia); Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611 (United States); Clarke, William P. [Division of Environmental of Engineering, The University of Queensland, Brisbane, Qld. 4072 (Australia)], E-mail: billc@cheque.uq.edu.au

2007-07-01T23:59:59.000Z

118

Biochar Produced from Anaerobically Digested Fiber Reduces Phosphorus in Dairy Lagoons  

Science Conference Proceedings (OSTI)

This study evaluated the use of biochar produced from anaerobic digester dairy fiber (ADF) to sequester phosphorus (P) from dairy lagoons. The ADF was collected from a plugged flow digester, air-dried to Biochar was produced by slow pyrolysis in a barrel retort. The potential of biochar to reduce P in the anaerobic digester effluent (ADE) was assessed in small-scale filter systems through which the effluent was circulated. Biochar sequestered an average of 381 mg L?1 P from the ADE, and 4 g L?1 ADF was captured as a coating on the biochar. There was an increase of total (1.9 g kg?1), Olsen (763 mg kg?1), and water-extractable P (914 mg kg?1) bound to the biochar after 15 d of filtration. This accounted for a recovery of 32% of the P in the ADE. The recovered P on the biochar was analyzed using 31P nuclear magnetic resonance for P speciation, which confirmed the recovery of inorganic orthophosphate after liquid extraction of the biochar and the presence of inextractable Ca-P in the solid state. The inorganic phosphate was sequestered on the biochar through physical and weak chemical bonding. Results indicate that biochar could be a beneficial component to P reduction in the dairy system.

Streubel, Jason D.; Collins, Harold P.; Tarara, Julie M.; Cochran, Rebecca L.

2012-07-01T23:59:59.000Z

119

Report on the design and operation of a full-scale anaerobic dairy manure digester. Final report  

DOE Green Energy (OSTI)

A full-scale anaerobic digester on the Monroe State Dairy Farm was operated and monitored for 24 months with funding provided by the United States Department of Energy, Fuels from Biomass Systems Branch. During the period of operation, operating parameters were varied and the impact of those changes is described. Operational experiences and system component performance are discussed. Internal digester mixing equipment was found to be unnecessary, and data supporting this conclusion are given. An influent/effluent heat exchanger was installed and tested, and results of the tests are included. Recommendations for digester design and operation are presented. Biological stability was monitored, and test results are given. Gas production rates and system net energy are analyzed. The economics of anaerobic digestion are evaluated based on various financing options, design scales, and expected benefits. Under many circumstances digesters are feasible today, and a means of analysis is given.

Coppinger, E.; Brautigam, J.; Lenart, J.; Baylon, D.

1979-12-01T23:59:59.000Z

120

Biogas generation by two-phase anaerobic digestion of organic fraction of municipal solid waste  

Science Conference Proceedings (OSTI)

The organic fraction of municipal solid waste can be a significant energy source for renewable energy generation. The total production of municipal solid waste in Turkey was 25?×?106 tones per year. Anaerobic digestion (AD) process may be a solution to the problems of energy demand and waste management since it provides biomethanation along with waste stabilization. AD can be operated in single or two phase configurations. Two-phase processes have some advantages over one phase systems in terms of selection of microorganisms

Eylem Dogan; Göksel N. Demirer

2012-01-01T23:59:59.000Z

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121

Continuous high-solids anaerobic co-digestion of organic solid wastes under mesophilic conditions  

SciTech Connect

Highlights: > High-solids (dry) anaerobic digestion is attracting a lot of attention these days. > One reactor was fed with food waste (FW) and paper waste. > Maximum biogas production rate of 5.0 m{sup 3}/m{sup 3}/d was achieved at HRT 40 d and 40% TS. > The other reactor was fed with FW and livestock waste (LW). > Until a 40% LW content increase, the reactor exhibited a stable performance. - Abstract: With increasing concerns over the limited capacity of landfills, conservation of resources, and reduction of CO{sub 2} emissions, high-solids (dry) anaerobic digestion of organic solid waste (OSW) is attracting a great deal of attention these days. In the present work, two dry anaerobic co-digestion systems fed with different mixtures of OSW were continuously operated under mesophilic conditions. Dewatered sludge cake was used as a main seeding source. In reactor (I), which was fed with food waste (FW) and paper waste (PW), hydraulic retention time (HRT) and solid content were controlled to find the maximum treatability. At a fixed solid content of 30% total solids (TS), stable performance was maintained up to an HRT decrease to 40 d. However, the stable performance was not sustained at 30 d HRT, and hence, HRT was increased to 40 d again. In further operation, instead of decreasing HRT, solid content was increased to 40% TS, which was found to be a better option to increase the treatability. The biogas production rate (BPR), CH{sub 4} production yield (MPY) and VS reduction achieved in this condition were 5.0 m{sup 3}/m{sup 3}/d, 0.25 m{sup 3} CH{sub 4}/g COD{sub added}, and 80%, respectively. Reactor (II) was fed with FW and livestock waste (LW), and LW content was increased during the operation. Until a 40% LW content increase, reactor (II) exhibited a stable performance. A BPR of 1.7 m{sup 3}/m{sup 3}/d, MPY of 0.26 m{sup 3} CH{sub 4}/g COD{sub added}, and VS reduction of 72% was achieved at 40% LW content. However, when the LW content was increased to 60%, there was a significant performance drop, which was attributed to free ammonia inhibition. The performances in these two reactors were comparable to the ones achieved in the conventional wet digestion and thermophilic dry digestion processes.

Kim, Dong-Hoon [Wastes Energy Research Center, Korea Institute of Energy Research, 102, Gajeong-ro, Yuseong-gu, Daejeon 305-343 (Korea, Republic of); Oh, Sae-Eun, E-mail: saeun@hanbat.ac.kr [Department of Environmental Engineering, Hanbat National University, San 16-1, Duckmyoung-dong, Yuseong-gu, Daejeon (Korea, Republic of)

2011-09-15T23:59:59.000Z

122

Supercritical Fluid Extraction of Bacterial and Archaeal Lipid Biomarkers from Anaerobically Digested Sludge  

E-Print Network (OSTI)

Abstract: Supercritical fluid extraction (SFE) was used in the analysis of bacterial respiratory quinone (RQ), bacterial phospholipid fatty acid (PLFA), and archaeal phospholipid ether lipid (PLEL) from anaerobically digested sludge. Bacterial RQ were determined using ultra performance liquid chromatography (UPLC). Determination of bacterial PLFA and archaeal PLEL was simultaneously performed using gas chromatography-mass spectrometry (GC-MS). The effects of pressure, temperature, and modifier concentration on the total amounts of RQ, PLFA, and PLEL were investigated by 23 experiments with five settings chosen for each variable. The optimal extraction conditions that were obtained through a multiple-response optimization included a pressure of 23.6 MPa, temperature of 77.6 °C, and 10.6 % (v/v) of methanol as the modifier. Thirty nine components of microbial lipid biomarkers were identified in the anaerobically digested sludge. Overall, the SFE method proved to be more effective, rapid, and quantitative for simultaneously extracting bacterial and archaeal lipid biomarkers, compared to conventional organic solvent extraction. This work shows the potential application of SFE as a routine method for the comprehensive analysis of microbial community structures in environmental assessments using the lipid biomarkers profile. Int. J. Mol. Sci. 2012, 13 3023

Muhammad Hanif; Yoichi Atsuta; Koichi Fujie; Hiroyuki Daimon

2012-01-01T23:59:59.000Z

123

Effect of seasonal changes in quantities of biowaste on full scale anaerobic digester performance  

Science Conference Proceedings (OSTI)

A 750,000 l digester located in Roppen/Austria was studied over a 2-year period. The concentrations and amounts of CH{sub 4}, H{sub 2}, CO{sub 2} and H{sub 2}S and several other process parameters like temperature, retention time, dry weight and input of substrate were registered continuously. On a weekly scale the pH and the concentrations of NH{sub 4}{sup +}-N and volatile fatty acids (acetic, butyric, iso-butyric, propionic, valeric and iso-valeric acid) were measured. The data show a similar pattern of seasonal gas production over 2 years of monitoring. The consumption of VFA and not the hydrogenotrophic CH{sub 4} production appeared to be the limiting factor for the investigated digestion process. Whereas the changes in pH and the concentrations of most VFA did not correspond with changes in biogas production, the ratio of acetic to propionic acid and the concentration of H{sub 2} appeared to be useful indicators for reactor performance. However, the most influential factors for the anaerobic digestion process were the amount and the quality of input material, which distinctly changed throughout the year.

Illmer, P. [University of Innsbruck, Institute of Microbiology, Technikerstr. 25, A-6020 Innsbruck (Austria)], E-mail: Paul.Illmer@uibk.ac.at; Gstraunthaler, G. [Abfallbeseitigungsverband Westtirol, Breite Mure, A-6426 Roppen (Austria)

2009-01-15T23:59:59.000Z

124

Estimation dynamical model of an anaerobic digestion of shrimp culture pond sediment in a biogas process using genetic algorithm  

Science Conference Proceedings (OSTI)

Biogas is one type of renewable energy which is important to the energy and environmental planning of Thailand. The study and analysis of the dynamical model of the biogas process can be explained the variables that affect biogas process and optimization. ... Keywords: anaerobic digestion, artificial intelligence, biogas process, mass balance equation, system identification

Jiraphon Srisertpol; Prasit Srinakorn; Adtavirod Kheawnak; Kontorn Chamniprasart; Arthit Srikaew

2010-10-01T23:59:59.000Z

125

Semi-continuous anaerobic co-digestion of thickened waste activated sludge and fat, oil and grease  

SciTech Connect

Highlights: > Co-digestion of thickened waste activated sludge (TWAS) with fat, oil and grease (FOG). > Co-digestion of TWAS and FOG at 64% VS increased biogas production by 137%. > FOG addition ratio at 74% of total VS caused inhibition of the anaerobic digestion process. > Micronutrients addition did not significantly improve the biogas production and digestion stabilization. - Abstract: Co-digestion of thickened waste activated sludge (TWAS) and fat, oil and grease (FOG) was conducted semi-continuously under mesophilic conditions. The results showed that daily methane yield at the steady state was 598 L/kg VS{sub added} when TWAS and FOG (64% of total VS) were co-digested, which was 137% higher than that obtained from digestion of TWAS alone. The biogas composition was stabilized at a CH{sub 4} and CO{sub 2} content of 66.8% and 29.5%, respectively. Micronutrients added to co-digestion did not improve the biogas production and digestion stabilization. With a higher addition of FOG (74% of total VS), the digester initially failed but was slowly self-recovered; however, the methane yield was only about 50% of a healthy reactor with the same organic loading rate.

Wan Caixia; Zhou Quancheng; Fu Guiming [Department of Food, Agricultural, and Biological Engineering, Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096 (United States); Li Yebo, E-mail: li.851@osu.edu [Department of Food, Agricultural, and Biological Engineering, Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096 (United States)

2011-08-15T23:59:59.000Z

126

RECIPIENT:WA Department of Commerce STATE: WA PROJECT Van Dyk Dairy Anaerobic Digester  

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

of5 of5 RECIPIENT:WA Department of Commerce STATE: WA PROJECT Van Dyk Dairy Anaerobic Digester TITLE: Funding Opportunity Announcement Number Procurement Instrument Number NEPA Control Number cm Number DE-EE0000139 GF0-10-604 Based on my review oftbe information concerning the proposed action, as NEPA CompUance Officer (authorized under DOE Order 451.1A), I have made the foUowing determination: cx, EA, EIS APPENDIX AND NUMBER: Description: A9 Information gathering (including, but not limited to, literature surveys, inventories, audits), data analysis (including computer modeling), document preparation (such as conceptual design or feasibility studies, analytical energy supply and demand studies), and dissemination (including, but not limited to, document mailings, publication, and distribution;

127

Processing high solids concentration of municipal solid waste by anaerobic digester for methane production  

SciTech Connect

Cellulosic solids are pretreated by calcium hydroxide to produce salts of volatile orangic acids and other water-soluble substances. Pure cellulose, sawdust, and waste paper are used as model substances for the study of alkaline degradation. It is found that sawdust is more difficult to degrade than the other two substances. The cooking conditions for high conversion of model substances and high yeild of orangic acids are found to be 275/degree/C to 300/degree/C with the corresponding reaction time from 30 minutes to 15 minutes. The cooking liquor can be readily fermented in an anaerobic fluidized-bed digester for methane production. The cooking liquor from different reaction conditions can all be digested by the methanogens. Higher than 90% of COD can be removed under the conditions of low organic loading rate (<2.0 g COD/1/day) and low hydraulic retention time (1.5 to 2.0 days). 14 refs., 10 figs., 2 tabs.

Tsao, G.T.

1988-01-01T23:59:59.000Z

128

Opportunities for Energy Efficiency and Open Automated Demand Response in Wastewater Treatment Facilities in California -- Phase I Report  

E-Print Network (OSTI)

Commission. (2008). "Anaerobic Digestion." Retrieved AugustRENEWABLE / BIOMASS / ANAEROBIC DIGESTION /. CaliforniaResearch: Biomass - Anaerobic Digestion." Retrieved December

Lekov, Alex

2010-01-01T23:59:59.000Z

129

ANAEROBIC BIOLOGICAL TREATMENT OF IN-SITU RETORT WATER  

E-Print Network (OSTI)

to conventional anaerobic digestion systems used forly, was treated by anaerobic digestion to remove from 65 to

Ossio, Edmundo

2012-01-01T23:59:59.000Z

130

Two-phase anaerobic digestion within a solid waste/wastewater integrated management system  

SciTech Connect

A two-phase, wet anaerobic digestion process was tested at laboratory scale using mechanically pre-treated municipal solid waste (MSW) as the substrate. The proposed process scheme differs from others due to the integration of the MSW and wastewater treatment cycles, which makes it possible to avoid the recirculation of process effluent. The results obtained show that the supplying of facultative biomass, drawn from the wastewater aeration tank, to the solid waste acidogenic reactor allows an improvement of the performance of the first phase of the process which is positively reflected on the second one. The proposed process performed successfully, adopting mesophilic conditions and a relatively short hydraulic retention time in the methanogenic reactor, as well as high values of organic loading rate. Significant VS removal efficiency and biogas production were achieved. Moreover, the methanogenic reactor quickly reached optimal conditions for a stable methanogenic phase. Studies conducted elsewhere also confirm the feasibility of integrating the treatment of the organic fraction of MSW with that of wastewater.

De Gioannis, G. [DIGITA, Department of Geoengineering and Environmental Technologies, University of Cagliari, Piazza D'Armi 09123 Cagliari (Italy); Diaz, L.F. [CalRecovery, Inc., 2454 Stanwell Drive, Concord, California 94520 (United States); Muntoni, A. [DIGITA, Department of Geoengineering and Environmental Technologies, University of Cagliari, Piazza D'Armi 09123 Cagliari (Italy)], E-mail: amuntoni@unica.it; Pisanu, A. [DIGITA, Department of Geoengineering and Environmental Technologies, University of Cagliari, Piazza D'Armi 09123 Cagliari (Italy)

2008-07-01T23:59:59.000Z

131

Trichloroethene Removal From Waste Gases in Anaerobic Biotrickling Filters Through Reductive Dechlorination  

E-Print Network (OSTI)

1) during thermophilic anaerobic digestion for production ofa keen interest in anaerobic digestion as well, and it wasfor thermophilic anaerobic digestion, and should stimulate

Popat, Sudeep Chandrakant

2010-01-01T23:59:59.000Z

132

Chemical and microbiological hazards associated with recycling of anaerobic digested residue intended for agricultural use  

Science Conference Proceedings (OSTI)

In the present study, three full-scale biogas plants (BGP) were investigated for the concentration of heavy metals, organic pollutants, pesticides and the pathogenic bacteria Bacillus cereus and Escherichia coli in the anaerobically digested residues (ADR). The BGPs mainly utilize source-separated organic wastes and industrial food waste as energy sources and separate the ADR into an ADR-liquid and an ADR-solid fraction by centrifugation at the BGP. According to the Norwegian standard for organic fertilizers, the ADR were classified as quality 1 mainly because of high zinc (132-422 mg kg{sup -1} DM) and copper (23-93 mg kg{sup -1} DM) concentrations, but also because of high cadmium (0.21-0.60 mg kg{sup -1} DM) concentrations in the liquid-ADR. In the screening of organic pollutants, only DEHP (9.7-62.1 mg kg{sup -1}) and {Sigma} PAH 16 (0.2-1.98 mg kg{sup -1} DM) were detected in high concentrations according to international regulations. Of the 250 pesticides analyzed, 11 were detected, but only imazalil (<0.30-5.77 mg kg{sup -1} DM) and thiabendazol (<0.14-0.73 mg kg{sup -1} DM) were frequently detected in the ADR-fiber. Concentrations of imazalil and thiabendazol were highest during the winter months, due to a high consumption of citrus fruits in Norway in this period. Ten percent of the ADR-liquid samples contained cereulide-producing B. cereus, whereas no verotoxigenic E. coli was detected. The authors conclude that the risk of chemical and bacterial contamination of the food chain or the environment from agricultural use of ADR seems low.

Govasmark, Espen, E-mail: espen.govasmark@bioforsk.no [Norwegian Institute for Agricultural and Environmental Research - Soil and Environment, Fredrik A. Dahlsvei 20, NO-1432 Aas (Norway); Staeb, Jessica [Universitaet Stuttgart, Institut fuer Siedlungswasserbau, Wasserguete- und Abfallwirtschaft, Abteilung Hydrochemie, Bandtaele 2, D-70569 Stuttgart (Buesnau) (Germany); Holen, Borge [Norwegian Institute for Agricultural and Environmental Research - Plant Health, Hogskoleveien 7, NO-1432 Aas (Norway); Hoornstra, Douwe [University of Helsinki, Department of Applied Chemistry and Microbiology, Faculty of Agriculture and Forestry, Biocenter, Viikinkaari 9, FIN-00014 (Finland); Nesbakk, Tommy [Mjosanlegget AS, Roverudmyra Miljostasjon, Asmarkveien 301, NO-2600 Lillehammer (Norway); Salkinoja-Salonen, Mirja [University of Helsinki, Department of Applied Chemistry and Microbiology, Faculty of Agriculture and Forestry, Biocenter, Viikinkaari 9, FIN-00014 (Finland)

2011-12-15T23:59:59.000Z

133

Archaeal community composition affects the function of anaerobic co-digesters in response to organic overload  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Two types of methanogens are necessary to respond successfully to perturbation. Black-Right-Pointing-Pointer Diversity of methanogens correlates with the VFA concentration and methane yield. Black-Right-Pointing-Pointer Aggregates indicate tight spatial relationship between minerals and microorganisms. - Abstract: Microbial community diversity in two thermophilic laboratory-scale and three full-scale anaerobic co-digesters was analysed by genetic profiling based on PCR-amplified partial 16S rRNA genes. In parallel operated laboratory reactors a stepwise increase of the organic loading rate (OLR) resulted in a decrease of methane production and an accumulation of volatile fatty acids (VFAs). However, almost threefold different OLRs were necessary to inhibit the gas production in the reactors. During stable reactor performance, no significant differences in the bacterial community structures were detected, except for in the archaeal communities. Sequencing of archaeal PCR products revealed a dominance of the acetoclastic methanogen Methanosarcina thermophila, while hydrogenotrophic methanogens were of minor importance and differed additionally in their abundance between reactors. As a consequence of the perturbation, changes in bacterial and archaeal populations were observed. After organic overload, hydrogenotrophic methanogens (Methanospirillum hungatei and Methanoculleus receptaculi) became more dominant, especially in the reactor attributed by a higher OLR capacity. In addition, aggregates composed of mineral and organic layers formed during organic overload and indicated tight spatial relationships between minerals and microbial processes that may support de-acidification processes in over-acidified sludge. Comparative analyses of mesophilic stationary phase full-scale reactors additionally indicated a correlation between the diversity of methanogens and the VFA concentration combined with the methane yield. This study demonstrates that the coexistence of two types of methanogens, i.e. hydrogenotrophic and acetoclastic methanogens is necessary to respond successfully to perturbation and leads to stable process performance.

Lerm, S.; Kleyboecker, A. [International Centre for Geothermal Research (ICGR), GFZ German Research Centre for Geosciences, 14473 Potsdam (Germany); Miethling-Graff, R. [International Centre for Geothermal Research (ICGR), GFZ German Research Centre for Geosciences, 14473 Potsdam (Germany); Johann Heinrich von Thuenen Institut, Bundesforschungsinstitut fuer Laendliche Raeume, Wald und Fischerei Institut fuer Biodiversitaet, 38116 Braunschweig (Germany); Alawi, M.; Kasina, M.; Liebrich, M. [International Centre for Geothermal Research (ICGR), GFZ German Research Centre for Geosciences, 14473 Potsdam (Germany); Wuerdemann, H., E-mail: wuerdemann@gfz-potsdam.de [International Centre for Geothermal Research (ICGR), GFZ German Research Centre for Geosciences, 14473 Potsdam (Germany)

2012-03-15T23:59:59.000Z

134

Methane Digesters and Biogas Recovery - Masking the Environmental Consequences of Industrial Concentrated Livestock Production  

E-Print Network (OSTI)

re- 35. John Paul, Anaerobic Digestion A Feel Good StrategyFACING VILOPMENT OF ANAEROBIC DIGESTION OF ANIMAl. WASTE INthan $40 million for anaerobic digestion systems." 19 The

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

135

Controlling the pH of acid cheese whey in a two-stage anaerobic digester with sodium hydroxide  

Science Conference Proceedings (OSTI)

Anaerobic digestion of cheese whey offers a two-fold benefit: pollution potential reduction and biogas production. The biogas, as an energy source, could be used to reduce the consumption of traditional fuels in the cheese plant. However, as a result of little or no buffering capacity of whey, the pH of the anaerobic digester drops drastically and the process is inhibited. In this study, the effect of controlling the pH of the second chamber of a two-stage, 150 L anaerobic digester operating on cheese whey on the quality and quantity of biogas and the pollution potential reduction, was investigated using sodium hydroxide. The digester was operated at a temperature of 35 C and a hydraulic retention time of 15 days for three runs (no pH control, pH control with no reseeding, and ph control with reseeding) each lasting 50 days. The results indicated that operating the digester without pH control resulted in a low pH (3.3) which inhibited the methanogenic bacteria. The inhibition was irreversible and the digester did not recover (no methane production) when the pH was restored to 7.0 without reseeding, as the observed increased gas production was a false indication of recovery because the gas was mainly carbon dioxide. The addition of base resulted in a total alkalinity of 12,000 mg/L as CaCO{sub 3}. When the system was reseeded and the pH controlled, the total volatile acid concentration was 15,100 mg/L (as acetic acid), with acetic (28%), propionic (21%), butyric (25%), valeric (8%), and caproic (15%) acids as the major constituents. The biogas production was 62.6 L/d (0.84 m{sup 3}/m{sup 3}/d) and the methane content was 60.7%. Reductions of 27.3, 30.4 and 23.3% in the total solids, chemical oxygen demand and total kjeldahl nitrogen were obtained, respectively. The ammonium nitrogen content increased significantly (140%).

Ghaly, A.E.; Ramkumar, D.R. [Dalhousie Univ., Halifax, Nova Scotia (Canada). Biological Engineering Dept.

1999-07-01T23:59:59.000Z

136

Dry-thermophilic anaerobic digestion of organic fraction of municipal solid waste: Methane production modeling  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Methane generation may be modeled by means of modified product generation model of Romero Garcia (1991). Black-Right-Pointing-Pointer Organic matter content and particle size influence the kinetic parameters. Black-Right-Pointing-Pointer Higher organic matter content and lower particle size enhance the biomethanization. - Abstract: The influence of particle size and organic matter content of organic fraction of municipal solid waste (OFMSW) in the overall kinetics of dry (30% total solids) thermophilic (55 Degree-Sign C) anaerobic digestion have been studied in a semi-continuous stirred tank reactor (SSTR). Two types of wastes were used: synthetic OFMSW (average particle size of 1 mm; 0.71 g Volatile Solids/g waste), and OFMSW coming from a composting full scale plant (average particle size of 30 mm; 0.16 g Volatile Solids/g waste). A modification of a widely-validated product-generation kinetic model has been proposed. Results obtained from the modified-model parameterization at steady-state (that include new kinetic parameters as K, Y{sub pMAX} and {theta}{sub MIN}) indicate that the features of the feedstock strongly influence the kinetics of the process. The overall specific growth rate of microorganisms ({mu}{sub max}) with synthetic OFMSW is 43% higher compared to OFMSW coming from a composting full scale plant: 0.238 d{sup -1} (K = 1.391 d{sup -1}; Y{sub pMAX} = 1.167 L CH{sub 4}/gDOC{sub c}; {theta}{sub MIN} = 7.924 days) vs. 0.135 d{sup -1} (K = 1.282 d{sup -1}; Y{sub pMAX} = 1.150 L CH{sub 4}/gDOC{sub c}; {theta}{sub MIN} = 9.997 days) respectively. Finally, it could be emphasized that the validation of proposed modified-model has been performed successfully by means of the simulation of non-steady state data for the different SRTs tested with each waste.

Fdez-Gueelfo, L.A., E-mail: alberto.fdezguelfo@uca.es [Department of Chemical Engineering and Food Technology, Faculty of Science, University of Cadiz, 11510 Puerto Real, Cadiz (Spain); Alvarez-Gallego, C. [Department of Chemical Engineering and Food Technology, Faculty of Science, University of Cadiz, 11510 Puerto Real, Cadiz (Spain); Sales, D. [Department of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cadiz, 11510 Puerto Real, Cadiz (Spain); Romero Garcia, L.I. [Department of Chemical Engineering and Food Technology, Faculty of Science, University of Cadiz, 11510 Puerto Real, Cadiz (Spain)

2012-03-15T23:59:59.000Z

137

Fate of Zinc Oxide Nanoparticles during Anaerobic Digestion of Wastewater and Post-Treatment Processing of Sewage Sludge  

Science Conference Proceedings (OSTI)

The rapid development and commercialization of nanomaterials will inevitably result in the release of nanoparticles (NPs) to the environment. As NPs often exhibit physical and chemical properties significantly different from those of their molecular or macrosize analogs, concern has been growing regarding their fate and toxicity in environmental compartments. The wastewater-sewage sludge pathway has been identified as a key release pathway leading to environmental exposure to NPs. In this study, we investigated the chemical transformation of two ZnO-NPs and one hydrophobic ZnO-NP commercial formulation (used in personal care products), during anaerobic digestion of wastewater. Changes in Zn speciation as a result of postprocessing of the sewage sludge, mimicking composting/stockpiling, were also assessed. The results indicated that 'native' Zn and Zn added either as a soluble salt or as NPs was rapidly converted to sulfides in all treatments. The hydrophobicity of the commercial formulation retarded the conversion of ZnO-NP. However, at the end of the anaerobic digestion process and after postprocessing of the sewage sludge (which caused a significant change in Zn speciation), the speciation of Zn was similar across all treatments. This indicates that, at least for the material tested, the risk assessment of ZnO-NP through this exposure pathway can rely on the significant knowledge already available in regard to other 'conventional' forms of Zn present in sewage sludge.

Lombi, Enzo; Donner, Erica; Tavakkoli, Ehsan; Turney, Terence W.; Naidu, Ravi; Miller, Bradley W.; Scheckel, Kirk G. (U. South Australia); (EPA); (Monash)

2013-01-14T23:59:59.000Z

138

Performance evaluation of an anaerobic/aerobic landfill-based digester using yard waste for energy and compost production  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Biochemical methane potential decreased by 83% during the two-stage operation. Black-Right-Pointing-Pointer Net energy produced was 84.3 MWh or 46 kWh per million metric tons (Mg). Black-Right-Pointing-Pointer The average removal efficiency of volatile organic compounds (VOCs) was 96-99%. Black-Right-Pointing-Pointer The average removal efficiency of non-methane organic compounds (NMOCs) was 68-99%. Black-Right-Pointing-Pointer The two-stage batch digester proved to be simple to operate and cost-effective. - Abstract: The objective of this study was to evaluate a new alternative for yard waste management by constructing, operating and monitoring a landfill-based two-stage batch digester (anaerobic/aerobic) with the recovery of energy and compost. The system was initially operated under anaerobic conditions for 366 days, after which the yard waste was aerated for an additional 191 days. Off gas generated from the aerobic stage was treated by biofilters. Net energy recovery was 84.3 MWh, or 46 kWh per million metric tons of wet waste (as received), and the biochemical methane potential of the treated waste decreased by 83% during the two-stage operation. The average removal efficiencies of volatile organic compounds and non-methane organic compounds in the biofilters were 96-99% and 68-99%, respectively.

Yazdani, Ramin, E-mail: ryazdani@sbcglobal.net [Yolo County Planning and Public Works Department, Division of Integrated Waste Management, Woodland, CA 95776 (United States); Civil and Environmental Engineering, University of California, One Shields Avenue, Ghausi Hall, Davis, CA 95616 (United States); Barlaz, Morton A., E-mail: barlaz@eos.ncsu.edu [Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC 27695 (United States); Augenstein, Don, E-mail: iemdon@aol.com [Institute for Environmental Management, Inc., Palo Alto, CA 94306 (United States); Kayhanian, Masoud, E-mail: mdkayhanian@ucdavis.edu [Civil and Environmental Engineering, University of California, One Shields Avenue, Ghausi Hall, Davis, CA 95616 (United States); Tchobanoglous, George, E-mail: gtchobanoglous@ucdavis.edu [Civil and Environmental Engineering, University of California, One Shields Avenue, Ghausi Hall, Davis, CA 95616 (United States)

2012-05-15T23:59:59.000Z

139

Optimization criteria for the stabilization of sewage sludge and biogas production through anaerobic digestion: an example of an environmental biotechnology application  

SciTech Connect

According to environmental protection and energy conservation principles, anaerobic digestion of activated sludges should have two main purposes: to stabilize the sludge within allowable limits and to increase biogas production as much as possible, in order to meet ecological requirement without neglecting a particular energy source. This implies optimization procedures for the design of the process, based upon its actual kinetics. This optimization has been developed in the present paper on the basis of experimental results on anaerobic digestion kinetics achieved in previous research.

Ferraiolo, G.; Del Borghi, M.; Gardi, R.; Solisio, C.

1983-03-01T23:59:59.000Z

140

High rate mesophilic, thermophilic, and temperature phased anaerobic digestion of waste activated sludge: A pilot scale study  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer High temperatures were tested in single and two-stage anaerobic digestion of waste activated sludge. Black-Right-Pointing-Pointer The increased temperature demonstrated the possibility of improving typical yields of the conventional mesophilic process. Black-Right-Pointing-Pointer The temperature phased anaerobic digestion process (65 + 55 Degree-Sign C) showed the best performances with yields of 0.49 m{sup 3}/kgVS{sub fed}. Black-Right-Pointing-Pointer Ammonia and phosphate released from solids destruction determined the precipitation of struvite in the reactor. - Abstract: The paper reports the findings of a two-year pilot scale experimental trial for the mesophilic (35 Degree-Sign C), thermophilic (55 Degree-Sign C) and temperature phased (65 + 55 Degree-Sign C) anaerobic digestion of waste activated sludge. During the mesophilic and thermophilic runs, the reactor operated at an organic loading rate of 2.2 kgVS/m{sup 3}d and a hydraulic retention time of 20 days. In the temperature phased run, the first reactor operated at an organic loading rate of 15 kgVS/m{sup 3}d and a hydraulic retention time of 2 days while the second reactor operated at an organic loading rate of 2.2 kgVS/m{sup 3}d and a hydraulic retention time of 18 days (20 days for the whole temperature phased system). The performance of the reactor improved with increases in temperature. The COD removal increased from 35% in mesophilic conditions, to 45% in thermophilic conditions, and 55% in the two stage temperature phased system. As a consequence, the specific biogas production increased from 0.33 to 0.45 and to 0.49 m{sup 3}/kgVS{sub fed} at 35, 55, and 65 + 55 Degree-Sign C, respectively. The extreme thermophilic reactor working at 65 Degree-Sign C showed a high hydrolytic capability and a specific yield of 0.33 gCOD (soluble) per gVS{sub fed}. The effluent of the extreme thermophilic reactor showed an average concentration of soluble COD and volatile fatty acids of 20 and 9 g/l, respectively. Acetic and propionic acids were the main compounds found in the acids mixture. Because of the improved digestion efficiency, organic nitrogen and phosphorus were solubilised in the bulk. Their concentration, however, did not increase as expected because of the formation of salts of hydroxyapatite and struvite inside the reactor.

Bolzonella, David, E-mail: david.bolzonella@univr.it [University of Verona, Department of Biotechnology, Strada Le Grazie, 15, 37134 Verona (Italy); Cavinato, Cristina, E-mail: cavinato@unive.it [University of Venice, Department of Environmental Sciences, Computer Science and Statistics, Dorsoduro 2137, 30123 Venice (Italy); Fatone, Francesco, E-mail: francesco.fatone@univr.it [University of Verona, Department of Biotechnology, Strada Le Grazie, 15, 37134 Verona (Italy); Pavan, Paolo, E-mail: pavan@unive.it [University of Venice, Department of Environmental Sciences, Computer Science and Statistics, Dorsoduro 2137, 30123 Venice (Italy); Cecchi, Franco, E-mail: franco.cecchi@univr.it [University of Verona, Department of Biotechnology, Strada Le Grazie, 15, 37134 Verona (Italy)

2012-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Feasibility study for anaerobic digestion of agricultural crop residues. Final report  

DOE Green Energy (OSTI)

This study provides cost estimates for the pretreatment/digestion of crop residues to fuel gas. Agricultural statistics indicate that the crop residues wheat straw, corn stover, and rice straw are available in sufficient quantity to provide meaningful supplies of gas. Engineering economic analyses were performed for digestion of sheat straw, corn stover, and rice straw for small farm, cooperative, and industrial scales. The results of the analyses indicate that the production of fuel gas from these residues is, at best, economically marginal, unless a credit can be obtained for digester effluent. The use of pretreatment can double the fuel gas output but will not be economically justifiable unless low chemical requirements or low-cost chemicals can be utilized. Use of low-cost hole-in-the-ground batch digestion results in improved economics for the small farm size digestion system, but not for the cooperative and industrial size systems. Recommendations arising from this study are continued development of autohydrolysis and chemical pretreatment of agricultural crop residues to improve fuel gas yields in an economically feasible manner; development of a low-cost controlled landfill batch digestion process for small farm applications; and determination of crop residue digestion by-product values for fertilizer and refeed.

Ashare, E.; Buivid, M. G.; Wilson, E. H.

1979-10-01T23:59:59.000Z

142

Feasibility study for anaerobic digestion of agricultural crop residues. Dynatech report No. 1935  

DOE Green Energy (OSTI)

The objective of this study was to provide cost estimates for the pretreatment/digestion of crop residues to fuel gas. A review of agricultural statistics indicated that the crop residues wheat straw, corn stover, and rice straw are available in sufficient quantity to provide meaningful supplies of gas. Engineering economic analyses were performed for digestion of wheat straw, corn stover, and rice straw for small farm-, cooperative-, and industrial scales. The small farm scale processed the residue from an average size US farm (400 acres), and the other sizes were two and three orders of magnitude greater. The results of the analyses indicate that the production of fuel gas from these residues is, at best, economically marginal, unless a credit can be obtained for digester effluent. The use of pretreatment can double the fuel gas output but will not be economically justifiable unless low chemical requirements or low cost chemicals can be utilized. Additional development is necessary in this area. Use of low cost hole-in-the-ground batch digestion results in improved economics for the small farm size digestion system, but not for the cooperative and industrial size systems. Recommendations arising from this study are continued development of autohydrolysis and chemical pretreatment of agricultural crop residues to improve fuel gas yields in an economically feasible manner; development of a low cost controlled landfill batch digestion process for small farm applications; and determination of crop residue digestion by-product values for fertilizer and refeed.

Ashare, E.; Buivid, M. G.; Wilson, E. H.

1979-07-31T23:59:59.000Z

143

Analysis of microbial diversity and optimal conditions for enhanced biogas production from swine waste anaerobic digestion  

Science Conference Proceedings (OSTI)

Swine wastewater pretreated by solid–liquid separation was optimized for biogas production and water purification. Dynamic diversity of the bacterial community in the anaerobic plug flow reactor was investigated under various temperatures and hydraulic retention times (HRT). Results of batch experiments indicated that under optimal operating conditions

Hsiao-Hsien Lin

2013-01-01T23:59:59.000Z

144

Computational fluid dynamics modelling of sewage sludge mixing in an anaerobic digester  

Science Conference Proceedings (OSTI)

In this paper, the development of a computational fluid dynamics (CFD) model to simulate the mechanical mixing of sewage sludge at laboratory scale is reported. The paper recommends a strategy for modelling mechanically mixed sewage sludge at laboratory ... Keywords: Biogas, CFD, Digestion, Energy, Non-Newtonian fluid, Sewage sludge, Turbulence

J. Bridgeman

2012-02-01T23:59:59.000Z

145

Anaerobic digestion of organic fraction of municipal solid waste combining two pretreatment modalities, high temperature microwave and hydrogen peroxide  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Microwave and H{sub 2}O{sub 2} pretreatment were studied to enhance anaerobic digestion of organic waste. Black-Right-Pointing-Pointer The whole waste pretreated at 115 Degree-Sign C or 145 Degree-Sign C had the highest biogas production. Black-Right-Pointing-Pointer Biogas production of the whole waste decreased at 175 Degree-Sign C due to formation of refractory compounds. Black-Right-Pointing-Pointer Pretreatment to 145 Degree-Sign C and 175 Degree-Sign C were the best when considering only the free liquid fraction. Black-Right-Pointing-Pointer H{sub 2}O{sub 2} pretreatment had a lag phase and the biogas production was not higher than MW pretreated samples. - Abstract: In order to enhance anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW), pretreatment combining two modalities, microwave (MW) heating in presence or absence of hydrogen peroxide (H{sub 2}O{sub 2}) were investigated. The main pretreatment variables affecting the characteristics of the OFMSW were temperature (T) via MW irradiation and supplemental water additions of 20% and 30% (SWA20 and SW30). Subsequently, the focus of this study was to evaluate mesophilic batch AD performance in terms of biogas production, as well as changes in the characteristics of the OFMSW post digestion. A high MW induced temperature range (115-175 Degree-Sign C) was applied, using sealed vessels and a bench scale MW unit equipped with temperature and pressure controls. Biochemical methane potential (BMP) tests were conducted on the whole OFMSW as well as the liquid fractions. The whole OFMSW pretreated at 115 Degree-Sign C and 145 Degree-Sign C showed 4-7% improvement in biogas production over untreated OFMSW (control). When pretreated at 175 Degree-Sign C, biogas production decreased due to formation of refractory compounds, inhibiting the digestion. For the liquid fraction of OFMSW, the effect of pretreatment on the cumulative biogas production (CBP) was more pronounced for SWA20 at 145 Degree-Sign C, with a 26% increase in biogas production after 8 days of digestion, compared to the control. When considering the increased substrate availability in the liquid fraction after MW pretreatment, a 78% improvement in biogas production vs. the control was achieved. Combining MW and H{sub 2}O{sub 2} modalities did not have a positive impact on OFMSW stabilization and enhanced biogas production. In general, all samples pretreated with H{sub 2}O{sub 2} displayed a long lag phase and the CBP was usually lower than MW irradiated only samples. First order rate constant was calculated.

Shahriari, Haleh, E-mail: haleh.shahriari@gmail.com [Department of Civil Engineering, University of Ottawa, 161 Louis Pasteur St., P.O. Box 450, Stn. A, Ottawa, ON, K1N 6N5 (Canada); Warith, Mostafa [Department of Civil Engineering, University of Ottawa, 161 Louis Pasteur St., P.O. Box 450, Stn. A, Ottawa, ON, K1N 6N5 (Canada); Hamoda, Mohamed [Department of Environmental Technology and Management, Kuwait University, P.O. Box 5969, Safat 13060 (Kuwait); Kennedy, Kevin J. [Department of Civil Engineering, University of Ottawa, 161 Louis Pasteur St., P.O. Box 450, Stn. A, Ottawa, ON, K1N 6N5 (Canada)

2012-01-15T23:59:59.000Z

146

Parameters affecting the stability of the digestate from a two-stage anaerobic process treating the organic fraction of municipal solid waste  

SciTech Connect

This paper focused on the factors affecting the respiration rate of the digestate taken from a continuous anaerobic two-stage process treating the organic fraction of municipal solid waste (OFMSW). The process involved a hydrolytic reactor (HR) that produced a leachate fed to a submerged anaerobic membrane bioreactor (SAMBR). It was found that a volatile solids (VS) removal in the range 40-75% and an operating temperature in the HR between 21 and 35 {sup o}C resulted in digestates with similar respiration rates, with all digestates requiring 17 days of aeration before satisfying the British Standard Institution stability threshold of 16 mg CO{sub 2} g VS{sup -1} day{sup -1}. Sanitization of the digestate at 65 {sup o}C for 7 days allowed a mature digestate to be obtained. At 4 g VS L{sup -1} d{sup -1} and Solid Retention Times (SRT) greater than 70 days, all the digestates emitted CO{sub 2} at a rate lower than 25 mg CO{sub 2} g VS{sup -1} d{sup -1} after 3 days of aeration, while at SRT lower than 20 days all the digestates displayed a respiration rate greater than 25 mg CO{sub 2} g VS{sup -1} d{sup -1}. The compliance criteria for Class I digestate set by the European Commission (EC) and British Standard Institution (BSI) could not be met because of nickel and chromium contamination, which was probably due to attrition of the stainless steel stirrer in the HR.

Trzcinski, Antoine P., E-mail: a.trzcinski05@ic.ac.uk [Department of Chemical Engineering, Imperial College of Science and Technology and Medicine, Prince Consort Road, London SW7 2AZ (United Kingdom); Stuckey, David C., E-mail: d.stuckey@ic.ac.uk [Department of Chemical Engineering, Imperial College of Science and Technology and Medicine, Prince Consort Road, London SW7 2AZ (United Kingdom)

2011-07-15T23:59:59.000Z

147

Impact and abatement of siloxanes in the Bucklin Point WWTF anaerobic digestion process.  

E-Print Network (OSTI)

?? The biogas produced at the Bucklin Point Wastewater Treatment Facility contained a high concentration of siloxane compounds. A manufacturer of personal care products was… (more)

Wenskowicz, Barry

2011-01-01T23:59:59.000Z

148

Micro-scale anaerobic digestion of point source components of organic fraction of municipal solid waste  

Science Conference Proceedings (OSTI)

The fermentation characteristics of six specific types of the organic fraction of municipal solid waste (OFMSW) were examined, with an emphasis on properties that are needed when designing plug-flow type anaerobic bioreactors. More specifically, the decomposition patterns of a vegetable (cabbage), fruits (banana and citrus peels), fresh leaf litter of bamboo and teak leaves, and paper (newsprint) waste streams as feedstocks were studied. Individual OFMSW components were placed into nylon mesh bags and subjected to various fermentation periods (solids retention time, SRT) within the inlet of a functioning plug-flow biogas fermentor. These were removed at periodic intervals, and their composition was analyzed to monitor decomposition rates and changes in chemical composition. Components like cabbage waste, banana peels, and orange peels fermented rapidly both in a plug-flow biogas reactor (PFBR) as well as under a biological methane potential (BMP) assay, while other OFMSW components (leaf litter from bamboo and teak leaves and newsprint) fermented slowly with poor process stability and moderate biodegradation. For fruit and vegetable wastes (FVW), a rapid and efficient removal of pectins is the main cause of rapid disintegration of these feedstocks, which left behind very little compost forming residues (2-5%). Teak and bamboo leaves and newsprint decomposed only to 25-50% in 30 d. These results confirm the potential for volatile fatty acids accumulation in a PFBR's inlet and suggest a modification of the inlet zone or operation of a PFBR with the above feedstocks.

Chanakya, H.N. [Centre for Sustainable Technologies, (formerly ASTRA), Indian Institute of Science, Bangalore 560 012 (India)], E-mail: chanakya@astra.iisc.ernet.in; Sharma, Isha [Centre for Sustainable Technologies, (formerly ASTRA), Indian Institute of Science, Bangalore 560 012 (India); Ramachandra, T.V. [Centre for Sustainable Technologies, (formerly ASTRA), Indian Institute of Science, Bangalore 560 012 (India); Centre for Ecological Sciences, Indian Institute of Science, Bangalore 560 012 (India)

2009-04-15T23:59:59.000Z

149

Pilot-scale anaerobic co-digestion of municipal biomass waste and waste activated sludge in China: Effect of organic loading rate  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Co-digestion of municipal biomass waste (MBW) and waste activated sludge (WAS) was examined on a pilot-scale reactor. Black-Right-Pointing-Pointer System performance and stability under OLR of 1.2, 2.4, 3.6, 4.8, 6.0 and 8.0 kg VS (m{sup 3} d){sup -1} were analyzed. Black-Right-Pointing-Pointer A maximum methane production rate of 2.94 m{sup 3} (m{sup 3} d){sup -1} was achieved at OLR of 8.0 kg VS (m{sup 3} d){sup -1} and HRT of 15d. Black-Right-Pointing-Pointer With the increasing OLRs, pH values, VS removal rate and methane concentration decreased and VFA increased. Black-Right-Pointing-Pointer The changing of biogas production rate can be a practical approach to monitor and control anaerobic digestion system. - Abstract: The effects of organic loading rate on the performance and stability of anaerobic co-digestion of municipal biomass waste (MBW) and waste activated sludge (WAS) were investigated on a pilot-scale reactor. The results showed that stable operation was achieved with organic loading rates (OLR) of 1.2-8.0 kg volatile solid (VS) (m{sup 3} d){sup -1}, with VS reduction rates of 61.7-69.9%, and volumetric biogas production of 0.89-5.28 m{sup 3} (m{sup 3} d){sup -1}. A maximum methane production rate of 2.94 m{sup 3} (m{sup 3} d){sup -1} was achieved at OLR of 8.0 kg VS (m{sup 3} d){sup -1} and hydraulic retention time of 15 days. With increasing OLRs, the anaerobic reactor showed a decrease in VS removal rate, average pH value and methane concentration, and a increase of volatile fatty acid concentration. By monitoring the biogas production rate (BPR), the anaerobic digestion system has a higher acidification risk under an OLR of 8.0 kg VS (m{sup 3} d){sup -1}. This result remarks the possibility of relating bioreactor performance with BPR in order to better understand and monitor anaerobic digestion process.

Liu Xiao, E-mail: liuxiao07@mails.tsinghua.edu.cn [School of Environment, Tsinghua University, Beijing 100084 (China); Wang Wei; Shi Yunchun; Zheng Lei [School of Environment, Tsinghua University, Beijing 100084 (China); Gao Xingbao [Chinese Research Academy of Environmental Sciences, Beijing 100012 (China); Qiao Wei [State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249 (China); Zhou Yingjun [Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nisikyo-ku, Kyoto 615-8540 (Japan)

2012-11-15T23:59:59.000Z

150

Opportunities for Open Automated Demand Response in Wastewater Treatment Facilities in California - Phase II Report. San Luis Rey Wastewater Treatment Plant Case Study  

E-Print Network (OSTI)

2007). A byproduct of anaerobic digestion is biogas whichthe byproduct of the anaerobic digestion of solids removedgas produced from anaerobic digestion at no cost. CalPower,

Thompson, Lisa

2010-01-01T23:59:59.000Z

151

Waste-to-wheel analysis of anaerobic-digestion-based renewable natural gas pathways with the GREET model.  

SciTech Connect

In 2009, manure management accounted for 2,356 Gg or 107 billion standard cubic ft of methane (CH{sub 4}) emissions in the United States, equivalent to 0.5% of U.S. natural gas (NG) consumption. Owing to the high global warming potential of methane, capturing and utilizing this methane source could reduce greenhouse gas (GHG) emissions. The extent of that reduction depends on several factors - most notably, how much of this manure-based methane can be captured, how much GHG is produced in the course of converting it to vehicular fuel, and how much GHG was produced by the fossil fuel it might displace. A life-cycle analysis was conducted to quantify these factors and, in so doing, assess the impact of converting methane from animal manure into renewable NG (RNG) and utilizing the gas in vehicles. Several manure-based RNG pathways were characterized in the GREET (Greenhouse gases, Regulated Emissions, and Energy use in Transportation) model, and their fuel-cycle energy use and GHG emissions were compared to petroleum-based pathways as well as to conventional fossil NG pathways. Results show that despite increased total energy use, both fossil fuel use and GHG emissions decline for most RNG pathways as compared with fossil NG and petroleum. However, GHG emissions for RNG pathways are highly dependent on the specifics of the reference case, as well as on the process energy emissions and methane conversion factors assumed for the RNG pathways. The most critical factors are the share of flared controllable CH{sub 4} and the quantity of CH{sub 4} lost during NG extraction in the reference case, the magnitude of N{sub 2}O lost in the anaerobic digestion (AD) process and in AD residue, and the amount of carbon sequestered in AD residue. In many cases, data for these parameters are limited and uncertain. Therefore, more research is needed to gain a better understanding of the range and magnitude of environmental benefits from converting animal manure to RNG via AD.

Han, J.; Mintz, M.; Wang, M. (Energy Systems)

2011-12-14T23:59:59.000Z

152

REFUSE CONVERSION TO METHANE (RefCOM) : A Proof-of-Concept Anaerobic Digestion Facility  

E-Print Network (OSTI)

and SNG for electricity generation. Environmental Science and Technology 6290­6296. Jones, C., Kammen, D

Columbia University

153

REFUSE CONVERSION TO METHANE (RefCOM): A Proof-of-Concept Anaerobic Digestion Facility  

E-Print Network (OSTI)

a commercial plant can operate at a net energy gain. REFERENCES [11 Ghosh, S. and Klass, D. L., "SNG From

Columbia University

154

Anaerobic co-digestion of the organic fraction of municipal solid waste with FOG waste from a sewage treatment plant: Recovering a wasted methane potential and enhancing the biogas yield  

SciTech Connect

Anaerobic digestion is applied widely to treat the source collected organic fraction of municipal solid wastes (SC-OFMSW). Lipid-rich wastes are a valuable substrate for anaerobic digestion due to their high theoretical methane potential. Nevertheless, although fat, oil and grease waste from sewage treatment plants (STP-FOGW) are commonly disposed of in landfill, European legislation is aimed at encouraging more effective forms of treatment. Co-digestion of the above wastes may enhance valorisation of STP-FOGW and lead to a higher biogas yield throughout the anaerobic digestion process. In the present study, STP-FOGW was evaluated as a co-substrate in wet anaerobic digestion of SC-OFMSW under mesophilic conditions (37 {sup o}C). Batch experiments carried out at different co-digestion ratios showed an improvement in methane production related to STP-FOGW addition. A 1:7 (VS/VS) STP-FOGW:SC-OFMSW feed ratio was selected for use in performing further lab-scale studies in a 5 L continuous reactor. Biogas yield increased from 0.38 {+-} 0.02 L g VS{sub feed}{sup -1} to 0.55 {+-} 0.05 L g VS{sub feed}{sup -1} as a result of adding STP-FOGW to reactor feed. Both VS reduction values and biogas methane content were maintained and inhibition produced by long chain fatty acid (LCFA) accumulation was not observed. Recovery of a currently wasted methane potential from STP-FOGW was achieved in a co-digestion process with SC-OFMSW.

Martin-Gonzalez, L., E-mail: lucia.martin@uab.ca [Departament d'Enginyeria Quimica, Universitat Autonoma de Barcelona, 08193 Bellaterra (Spain); Colturato, L.F. [Departament d'Enginyeria Quimica, Universitat Autonoma de Barcelona, 08193 Bellaterra (Spain); Font, X.; Vicent, T. [Departament d'Enginyeria Quimica, Universitat Autonoma de Barcelona, 08193 Bellaterra (Spain); Institut de Ciencia i Tecnologia Ambiental (ICTA) Universitat Autonoma de Barcelona, 08193 Bellaterra (Spain)

2010-10-15T23:59:59.000Z

155

Early-warning process/control for anaerobic digestion and biological nitrogen transformation processes: Batch, semi-continuous, and/or chemostat experiments. Final report  

DOE Green Energy (OSTI)

The objective of this project was to develop and test an early-warning/process control model for anaerobic sludge digestion (AD). The approach was to use batch and semi-continuously fed systems and to assemble system parameter data on a real-time basis. Specific goals were to produce a real-time early warning control model and computer code, tested for internal and external validity; to determine the minimum rate of data collection for maximum lag time to predict failure with a prescribed accuracy and confidence in the prediction; and to determine and characterize any trends in the real-time data collected in response to particular perturbations to feedstock quality. Trends in the response of trace gases carbon monoxide and hydrogen in batch experiments, were found to depend on toxicant type. For example, these trace gases respond differently for organic substances vs. heavy metals. In both batch and semi-continuously feed experiments, increased organic loading lead to proportionate increases in gas production rates as well as increases in CO and H{sub 2} concentration. An analysis of variance of gas parameters confirmed that CO was the most sensitive indicator variable by virtue of its relatively larger variance compared to the others. The other parameters evaluated including gas production, methane production, hydrogen, carbon monoxide, carbon dioxide and methane concentration. In addition, a relationship was hypothesized between gaseous CO concentration and acetate concentrations in the digester. The data from semicontinuous feed experiments were supportive.

Hickey, R. [Science Applications International Corp., McLean, VA (United States)

1992-09-01T23:59:59.000Z

156

Investigation of EPS Characteristics and their Effects on Waste Activated Sludge Digestion  

E-Print Network (OSTI)

be accomplished through use of aerobic or anaerobic self digestion, but choice of digestion type in practice to predict aerobic and anaerobic digestion potential. Future Work: · The anaerobic reactors are still running sludge. It performs only slightly better than the unsonicated sludge in anaerobic digestion

Mountziaris, T. J.

157

Biomass Gasification and Methane Digester Property Tax Exemption...  

Open Energy Info (EERE)

Tax Incentive Applicable Sector Agricultural Eligible Technologies Anaerobic Digestion, Biomass, Thermal polyerization Active Incentive Yes Implementing Sector StateTerritory...

158

STM Stirling Engine-Generator at a Hog Manure Digester Gas Facility  

Science Conference Proceedings (OSTI)

Stirling engines have recently been introduced to the distributed generation market. This report summarizes the results of three projects that used Stirling engine-generators from one manufacturer in applications where they were fueled with digester gas.

2007-08-30T23:59:59.000Z

159

Organic pollutants in Swiss compost and digestate.  

E-Print Network (OSTI)

??Composting (aerobic treatment of organic wastes) and digestion (anaerobic treatment of organic wastes combined with biogas production) are important waste management strategies with increasing significance… (more)

Brändli, Rahel Christine

160

Organic pollutants in Swiss compost and digestate.  

E-Print Network (OSTI)

??Composting (aerobic treatment of organic wastes) and digestion (anaerobic treatment of organic wastes combined with biogas production) are important waste management strategies with increasing significance… (more)

Brändli, Rahel Christine

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Feasibility Study of Anaerobic Digestion of Food Waste in St. Bernard, Louisiana. 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  

DOE Green Energy (OSTI)

The U.S. Environmental Protection Agency (EPA) developed the RE-Powering America's Land initiative to re-use contaminated sites for renewable energy generation when aligned with the community's vision for the site. The former Kaiser Aluminum Landfill in St. Bernard Parish, Louisiana, was selected for a feasibility study under the program. Preliminary work focused on selecting a biomass feedstock. Discussions with area experts, universities, and the project team identified food wastes as the feedstock and anaerobic digestion (AD) as the technology.

Moriarty, K.

2013-01-01T23:59:59.000Z

162

Upflow anaerobic sludge blanket reactors for treatment of wastewater from the brewery industry  

E-Print Network (OSTI)

Anaerobic digestion can be utilized to convert industrial wastewater into clean water and energy. The goal of this project was to set up lab-scale anaerobic digesters to collect data that will be used to develop and validate ...

Scampini, Amanda C

2010-01-01T23:59:59.000Z

163

VERIFICATION OF THE DEFENSE WASTE PROCESSING FACILITY'S (DWPF) PROCESS DIGESTION METHOD FOR THE SLUDGE BATCH 7A QUALIFICATION SAMPLE  

Science Conference Proceedings (OSTI)

For each sludge batch that is processed in the Defense Waste Processing Facility (DWPF), the Savannah River National Laboratory (SRNL) performs confirmation of the applicability of the digestion method to be used by the DWPF lab for elemental analysis of Sludge Receipt and Adjustment Tank (SRAT) receipt samples and SRAT product process control samples. DWPF SRAT samples are typically dissolved using a room temperature HF-HNO{sub 3} acid dissolution (i.e., DWPF Cold Chem Method, see DWPF Procedure SW4-15.201) and then analyzed by inductively coupled plasma - atomic emission spectroscopy (ICP-AES). This report contains the results and comparison of data generated from performing the Aqua Regia (AR), Sodium peroxide/Hydroxide Fusion (PF) and DWPF Cold Chem (CC) method digestions of Sludge Batch 7a (SB7a) SRAT Receipt and SB7a SRAT Product samples. The SB7a SRAT Receipt and SB7a SRAT Product samples were prepared in the SRNL Shielded Cells, and the SRAT Receipt material is representative of the sludge that constituates the SB7a Batch or qualification composition. This is the sludge in Tank 51 that is to be transferred into Tank 40, which will contain the heel of Sludge Batch 6 (SB6), to form the Sb7a Blend composition.

Click, D.; Edwards, T.; Jones, M.; Wiedenman, B.

2011-03-14T23:59:59.000Z

164

NSERC-Laflche Industrial Research Chair Advanced Anaerobic Treatment  

E-Print Network (OSTI)

. LANDFILL BIOREACTORS EXSITU ANAEROBIC DIGESTION Apply stand alone reactor technology to digest solidNSERC- Laflèche Industrial Research Chair Advanced Anaerobic Treatment Residuals to Energy R2E 6133. 0 100 200 300 400 500 600 700 800 900 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Digestion Time

Petriu, Emil M.

165

Location and chemical composition of microbially induced phosphorus precipitates in anaerobic and aerobic granular sludge  

E-Print Network (OSTI)

]. However, anaerobic digestion is not effective for nutrient removal and should be followed by a processLocation and chemical composition of microbially induced phosphorus precipitates in anaerobic different operating conditions. Three dairy wastewater effluents, from three different upflow anaerobic

Paris-Sud XI, Université de

166

Design and study of a risk management criterion for an unstable anaerobic wastewater  

E-Print Network (OSTI)

an unstable biological process used for wastewater treat- ment. This anaerobic digestion ecosystem can have steady-state to another. This is especially the case for the anaerobic digestion process: a more and more There exists numerous dynamical models for anaerobic digestion, from the basic ones considering only one

Bernard, Olivier

167

Long-term investigation of microbial fuel cells treating primary sludge or digested sludge  

E-Print Network (OSTI)

be comparable to anaerobic digesters. Direct electricity generation had a minor contribution to total energy potentially be used to polish the effluent from anaerobic digesters. Ã? 2013 Elsevier Ltd. All rights reserved, anaerobic digestion (AD) is generally preferred because of its cost- effectiveness and bioenergy production

168

Effects of temperature and temperature shock on the performance and microbial community structure of a submerged anaerobic membrane bioreactor  

E-Print Network (OSTI)

in the biological wastewater treatment performance and stability. Anaerobic digestion can be conducted., 2004). Earlier studies investigating effect of temperature on the anaerobic digestion process have of the mesophilic anaerobic digestion were re- cently studied (Chae et al., 2008). Some of the studies were only

Qin, Wensheng

169

Waste-to-Energy Biomass Digester with Decreased Water Consumption  

energy costs. Anaerobic digesters work by allowing bacteria to break down the ... water is scarce, and helps to reduce the environmental impact of ...

170

A dynamic estimation scheme of specific growth rates of bacteria for an anaerobic wastewater treatment process  

E-Print Network (OSTI)

. The dynamics of this process are the ones of standard anaerobic digestion, and depend on the type of organic is devoted to the description of the model of the specific anaerobic digestion processA dynamic estimation scheme of specific growth rates of bacteria for an anaerobic wastewater

171

Verification Of The Defense Waste Processing Facility's (DWPF) Process Digestion Methods For The Sludge Batch 8 Qualification Sample  

SciTech Connect

This report contains the results and comparison of data generated from inductively coupled plasma – atomic emission spectroscopy (ICP-AES) analysis of Aqua Regia (AR), Sodium Peroxide/Sodium Hydroxide Fusion Dissolution (PF) and Cold Chem (CC) method digestions and Cold Vapor Atomic Absorption analysis of Hg digestions from the DWPF Hg digestion method of Sludge Batch 8 (SB8) Sludge Receipt and Adjustment Tank (SRAT) Receipt and SB8 SRAT Product samples. The SB8 SRAT Receipt and SB8 SRAT Product samples were prepared in the SRNL Shielded Cells, and the SRAT Receipt material is representative of the sludge that constitutes the SB8 Batch or qualification composition. This is the sludge in Tank 51 that is to be transferred into Tank 40, which will contain the heel of Sludge Batch 7b (SB7b), to form the SB8 Blend composition.

Click, D. R.; Edwards, T. B.; Wiedenman, B. J.; Brown, L. W.

2013-03-18T23:59:59.000Z

172

Impact of EPS on Digestion of Waste Activate Sludge Thomas Gostanian  

E-Print Network (OSTI)

is by either aerobic or anaerobic self-digestion, in which the bacteria consume their own mass. Currently are particular in their assistance of either aerobic or anaerobic digestion. Direct samples of activated sludgeImpact of EPS on Digestion of Waste Activate Sludge Thomas Gostanian Faculty Mentor: Professor Chul

Mountziaris, T. J.

173

Ruminant digestion  

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

Ruminant digestion Ruminant digestion Name: hignell Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: How long it takes for the digestive process to work in a ruminant? With the various chambers and would digestion take longer than in other mammals? Replies: A friend in animal nutrition is looking up an exact figure, but as he does, here are a few guidelines: Time of digestion largely depends on the type of food an animal ingests: CARNIVORES: short, uncomplicated digestive systems. They eat very high on the food chain (other animals), which provide food stuff which is relatively easy to digest. Hence, rapid digestion. OMNIVORES: medium length, medium complex digestive systems. We eat at all levels of the food chain, and so need a balanced system. Medium time of digestion (roughly 2-10 hours per meal, depending on proportions of carbohydrates, fats, proteins).

174

Facilities  

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

Environment Feature Stories Public Reading Room: Environmental Documents, Reports LANL Home Phonebook Calendar Video About Operational Excellence Facilities Facilities...

175

Stabilization of a nonlinear anaerobic wastewater treatment model  

Science Conference Proceedings (OSTI)

A nonlinear anaerobic digester model of wastewater treatment plants is considered. The stabilizability of the dynamic system is studied and a continuous stabilizing feedback, depending only on an on-line measurable variable, is proposed. Computer simulations ...

Neli S. Dimitrova; Mikhail I. Krastanov

2005-06-01T23:59:59.000Z

176

Casein whey as booster for anaerobic co-digestion of primary sludge : a thesis presented in partial fulfilment of the requirements for the degree of Master of Engineering in Environmental Engineering.  

E-Print Network (OSTI)

??Spare capacity found in many municipal primary sludge digesters could be used to improve the biogas production through the addition of other organic waste. This… (more)

Güttler, Johanna

2012-01-01T23:59:59.000Z

177

Removal of polycyclic aromatic hydrocarbons (PAHs) from sewage sludge by anaerobic degradation  

E-Print Network (OSTI)

to reduce volume, remove pathogens, and to gain energy. Anaerobic digestion is by far the most commonRemoval of polycyclic aromatic hydrocarbons (PAHs) from sewage sludge by anaerobic degradation N treatment in a wastewater treatment plant. They therefore proceed directly to the anaerobic post treatment

178

An integrated system to remote monitor and control anaerobic wastewater treatment plants through the internet  

E-Print Network (OSTI)

and manages the problem. Keywords Anaerobic digestion, automation, control, fault detection and isolationAn integrated system to remote monitor and control anaerobic wastewater treatment plants through of the anaerobic wastewater treatment plants that do not benefit from a local expert in wastewater treatment

Bernard, Olivier

179

THE RUMEN ANAEROBIC FUNGI : COLONIZERS OF PLANT FIBRE Applied Biochemistry Division, DSIR, Palmerston North, New Zealand.  

E-Print Network (OSTI)

» fraction that the rumen anaerobic fungi are to be found. Digestion of cellulose and related plant fibrousTHE RUMEN ANAEROBIC FUNGI : COLONIZERS OF PLANT FIBRE T. BAUCHOP Applied Biochemistry Division, DSIR, Palmerston North, New Zealand. Large numbers of anaerobic phycomyce- tous fungi colonize plant

Recanati, Catherine

180

RCM Digesters | Open Energy Information  

Open Energy Info (EERE)

RCM Digesters RCM Digesters Jump to: navigation, search Name RCM Digesters Place Berkeley, California Zip CA 94704 Product Manufactures anaerobic manure digesters which process animal waste into biogas. Coordinates 38.748315°, -90.334929° 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":38.748315,"lon":-90.334929,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Biogas-Fueled Distributed Generation: Three Manure Digester Case Studies  

Science Conference Proceedings (OSTI)

Biogas produced from the anaerobic digestion of livestock waste can provide electrical and thermal energy while solving environmental challenges, including waste management and greenhouse gas reduction. The three manure digester gas projects described in this report demonstrate the potential of such systems to provide co-generated power and heat.

2004-12-27T23:59:59.000Z

182

Operational experience from three full scale methane digesters  

Science Conference Proceedings (OSTI)

Three full scale anaerobic digesters are described and operational experience is discussed. The digesters are located in Monroe, Washington on a 200 head dairy; in Bartow, Florida on a 10,000 head feedlot; and in Bedford, Virginia on a 100 head dairy. 11 refs.

Coppinger, E.R.; Richter, M.

1981-01-01T23:59:59.000Z

183

Facilities  

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

Facilities Facilities Facilities LANL's mission is to develop and apply science and technology to ensure the safety, security, and reliability of the U.S. nuclear deterrent; reduce global threats; and solve other emerging national security and energy challenges. Contact Operator Los Alamos National Laboratory (505) 667-5061 Some LANL facilities are available to researchers at other laboratories, universities, and industry. Unique facilities foster experimental science, support LANL's security mission DARHT accelerator DARHT's electron accelerators use large, circular aluminum structures to create magnetic fields that focus and steer a stream of electrons down the length of the accelerator. Tremendous electrical energy is added along the way. When the stream of high-speed electrons exits the accelerator it is

184

Production and sale of energy and nutrients from a multi-farm digester  

Science Conference Proceedings (OSTI)

An investor-owned anaerobic digestion system was designed to process the wastes from several dairy farms totalling 900 cows. The resulting biogas will fuel a 97 KW engine-generator producing both electricity for sale to the utility, and waste heat for digester heating and supplemental greenhouse heating. The digested solids and liquids will be marketed as nursery soil and fertilizer, respectively.

Williams, D.W.; Howard, K.; Orrett, E.

1986-01-01T23:59:59.000Z

185

Methane Digester Loan Program | Department of Energy  

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

Methane Digester Loan Program Methane Digester Loan Program Methane Digester Loan Program < Back Eligibility Agricultural Savings Category Bioenergy Maximum Rebate RFA can provide up to $250,000 of loan principal Program Info Funding Source Minnesota Rural Finance Authority (RFA) State Minnesota Program Type State Loan Program Rebate Amount RFA participation limited to 45% of loan principal Provider Minnesota Department of Agriculture Established in 1998, the Minnesota Dept. of Agriculture Methane Digester Loan Program helps livestock producers install on-farm anaerobic digesters used for the production of electricity by providing zero-interest loans to eligible borrowers. The loan program is part of the Rural Finance Authority (RFA) revolving loan fund, through which farmers can receive financial aid

186

Refeeding biogas digester solids  

SciTech Connect

Biosolid, the digester residue from a biogas plant, must be of economical use to ensure the financial feasibility of biogas facilities. This paper sumarizes work performed for a Department of Energy study in the Imperial Valley of California. Feeding trials show that biosolid can only be used as a small proportion of feed rations. Apart from bacterial debris, biosolid is composed larely of non-nutritive residues. 5 refs.

Licht, L.A.

1981-01-01T23:59:59.000Z

187

Community Renewable Energy Success Stories: Community-Scale Anaerobic  

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

Community-Scale Community-Scale Anaerobic Digesters (text version) Community Renewable Energy Success Stories: Community-Scale Anaerobic Digesters (text version) Below is the text version of the webinar titled "Community-Scale Anaerobic Digesters," originally presented on April 16, 2013. Operator: The broadcast is now starting. All attendees are in listen-only mode. Sarah Busche: Good afternoon, everyone, and welcome to today's webinar sponsored by the U.S. Department of Energy. I'm Sarah Busche, and I'm here with Devin Egan, and we're broadcasting live from a very snowy National Renewable Energy Laboratory in Golden, Colorado. Thank you so much for joining us today. We're going to give folks a few minutes to call in and log on, but while we wait Devin will go over some logistics, and then we'll get started with

188

Digestion Simulations  

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

Digestion Simulations Digestion Simulations Name: Lisa Location: N/A Country: N/A Date: N/A Question: My 5th grade students are beginning an experiment next week and their hypothesis involves edibility(edibleness?). Is there a way to replicate the stomach in, say, a bottle?? Are there ways to test for edibleness(?) without actually ingesting the experiment yourself? Replies: I would not recommend the idea of a bottle stomach. The stomach digests only proteins anyway with HCl [pH 1.0] which is very, very strong acid that will burn seriously if in contact with skin. The intestine is just as much responsible for digestion of lipids [bile], carbohydrates and remaining proteins using enzymes, many of these you do not want to be handling, let alone purchase. As a high school teacher, I have lab exercises dealing with digestion, but I can not recommend any of these unless you are set up with a functional science laboratory and all the safety equipment necessary.

189

Cayuga County Regional Digester - Vision Becomes Reality - Final Report  

Science Conference Proceedings (OSTI)

With an average herd size of 113 mature cows, Cayuga County is home to 280 dairy farms and 31,500 dairy milking cows producing approximately 855 million gallons of milk per year. The Cayuga Dairy industry is a major contributor to the countys economy, employing nearly 1200 people, while generating $140,000,000 of revenue from sale of milk alone. At the same time, the Cayuga County dairy industry also produces 5.7 million gallons of manure daily: a) Nearly 34% of this manure is produced on smaller farms. b) Digesters are expensive pieces of equipment and require attention and care. c) The on-farm digester systems have fairly long payback (>10 years) even for larger CAFO farms (>1000 milking cows). In 2005, Cayuga County Soil and Water Conservation District (The District), a Public Agency under Cayuga County, decided to undertake a centralized community digester project. The primary goal of the project was to develop an economically sustainable model, under the auspices of The District to address manure management issues facing the smaller dairies, improve the water quality and improve the quality of life for Cayuga County residents. It is believed that the District has accomplished this goal by completing construction of Cayuga County Regional Digester on a parcel of land behind the Cayuga County Natural Resource Center located at 7413 County House Road in the Town of Sennett in Cayuga County, New York. The digester facility consists of the following major components. 1. Transfer Station: This an indoor truck bay, where 35,000 gallons of manure from three local farms, 8,500 gallons of liquid organic food-processor waste, and 1,200 gallons of brown grease are unloaded from tanker trucks and the digested slurry is loaded onto the tanker trucks for delivery back to the participating farms. 2. Anaerobic Digester: The project utilizes a hydraulic mix anaerobic digester, a unique design that has no internal moving parts for mixing. The digester, which operates at mesophilic temperatures, is designed to process the daily feedstock and produce 220,000 SCF2 of biogas per day. The digester also produces 44,000 gallons of digested slurry per day. 3. Biogas Conditioning System: The plant employs a biological biogas conditioning system to remove the H2S and moisture contents of the biogas and prepare it to be used by the plant generation system. 4. Combined Heat and Power System (CHP): This is a 633kW high efficiency biogas-fired GE-Jenbacher model JMS-312 GS-NL reciprocating engine cogeneration system. The heat recovery system incorporated into the package is designed to capture the waste heat from the engine exhaust, the jacket cooling water and the engine oil circuit. 5. Electrical Substation and Power Distribution Systems: An electrical distribution system has been constructed on-site that aggregates the electrical service of the different county buildings on the District campus into a county owned electric distribution system that is interconnected with the CHP and the local electric grid. The electrical system is designed, in accordance with the utility guidelines, to allow grid-parallel operation of CHP and provide for import and export of electric power. 6. Thermal Energy Distribution System: The heat recovery system has been integrated into a high temperature water distribution system that distributes the heat to the thermal circuits for the anaerobic digester facility. Additional piping has also been installed to transfer the remaining thermal energy to other county buildings on the campus. On a daily basis, the plant will co-process 35,000 gallons of manure from local dairy farms, 8,500 gallons of food-processor waste and 1,200 gallons of brown grease to produce 200,000 ft3/d of biogas and 44,000 gallons of pathogen-free nutrient-rich digested slurry for agricultural use by farms and in the local area. The biogas fueled CHP produces 5,157,000 kWh of electricity and 19,506 dekatherms of thermal energy per year. Electrical power generated by the cogeneration system powers all the buildings on the Cayuga County campus an

Kamyar V. Zadeh, Ph.D.; Blue Electron Technology Solutions International LLC

2013-03-12T23:59:59.000Z

190

Colonisation of the sheep rumen with polycentric anaerobic fungi isolated from cattle  

E-Print Network (OSTI)

Colonisation of the sheep rumen with polycentric anaerobic fungi isolated from cattle MW Phillips, GLR Gordon CSIRO Animal Production, Locked Bag 1, Blacktown, New South Wales 2148, Australia Anaerobic suggests that these organisms play an important role in the digestion of diets high in fibre (Gordon

Recanati, Catherine

191

Liquidization of dewatered organic sludge and anaerobic treatment  

SciTech Connect

Dewatered sewage sludge was thermochemically liquidized at 175 {degrees}C and the liquidized sludge was separated by centrifugation to 58% (w/w) supernatant and 42% precipitate. The amount of proteins in the liquidized sludge slightly decreased through the liquidization process, however, that of lipids increased. The supernatant separated from the sludge liquidized with dewatered sewage sludge was successfully anaerobically digested. Biogas yield from the supernatant from dewatered sewage sludge at organic loading concentrations of 1.9-2.2 g VS/l during 9 days incubation was 440 ml/g-added VS and digestion ratio was 66% (w/w). Biogas yield in the case of dewatered sewage sludge was 257 ml/g-added VS and digestion ratio was 45%. Similar results were obtained in the case of the anaerobically digested with sewage sludge and dewatered sludge. Anaerobic digestion of the supernatants from the liquidized sludges resulted in high biogas productivity and high digestion ratio compared with these of the original sludges. Moreover, the precipitates contained lower moisture, therefore, they can be incinerated easier than the respective original sludges.

Sawayama, Shigeki; Inoue, Seiichi; Ogi, Tomoko [National Institute for Resources and Environment, Tsukuba, Ibaraki (Japan)

1996-12-31T23:59:59.000Z

192

Full scale field demonstration of unheated anaerobic contact stabilization. Project status report, October 1980-February 1981  

DOE Green Energy (OSTI)

The objective of the study reported here is to demonstrate that municipal sewage sludges can be anaerobically digested with little or no heating. To this end, two digesters at the Jackson Pike Wastewater Treatment Plant in Columbus, Ohio, have been converted to the anaerobic contact stabilization process. This, it is hoped, will permit positive and independent control of the solids retention time (SRT) in the system, so that solids may be retained long enough to ensure substantially complete digestion even at reduced temperatures. Digestion at a temperature of 71/sup 0/F and an SRT of 33 days produces results similar to digestion at a temperature of 91/sup 0/F and an SRT of 11 days. There is no evidence of impaired or unstable digestion at the lower temperature. (DMC)

Sykes, R.M.

1981-04-01T23:59:59.000Z

193

Biofuel potential, nitrogen utilization, and growth rates of two green algae isolated from a wastewater treatment facility.  

E-Print Network (OSTI)

??Nitrogen removal from wastewater by algae provides the additional benefit of producing lipids for biofuel and biomass for anaerobic digestion. As ammonium is the renewable… (more)

Eustance, Everett O'Brien.

2011-01-01T23:59:59.000Z

194

Digestion time  

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

Digestion time Digestion time Name: Don Mancosh Location: N/A Country: N/A Date: N/A Question: I have always given the rule of thumb in class that material we eat is with us for about 24 hours before exiting the body. The question arises about the time value of liquids. Getting a big coke prior to a 3 hour drive generally means that there will be a stop along the way. Is there a generalization made about liquids in the body similar to the one for solid food? Replies: A physician would give a better answer, but I hazard this: the only liquids which people consume (deliberately) in significant quantities are water, ethyl alcohol and various oils. Water and alcohol are absorbed on a time scale of seconds to minutes through the mouth, stomach and digestive tract. The oils are huge molecules, so I'd guess like any other greasy food they get absorbed in the upper digestive tract. Some of them, perhaps the longest and most nonpolar, are not absorbed at all --- cf. the old-time remedy of mineral oil for constipation --- so there should be some average time-before-what's-left-is-excreted such as you're looking for, and my (wild) guess is that it would not differ substantially from that for food. You can define an average lifetime in the body for alcohol, since the natural level is zero. Rough guidelines are widespread in the context of drunk driving laws. But this is not really possible for water. One's body is normally full up to the brim with water, and there's no way for the body to distinguish between water molecules recently absorbed and molecules that've been moping around since the Beatles split up. Thus the water entering the toilet bowl after the pit stop is not in general the same water as was in the big coke. If you were to consider for water just the average time between drinking and peeing, it would seem to depend strongly on how well hydrated the body was before the drink, and how much was drunk. During sustained heavy exertion in the sun and dry air one can easily drink a pint of water an hour without peeing at all. On the other hand, if one is willing to drink enough water fast enough, so as to establish a high excess of body water one can pee 8 ounces 15 minutes or less after drinking 8 ounces.

195

Sludge digester  

SciTech Connect

A ballasted, gas-holding, liquid sludge digester is described comprising: a main liquid sludge tank having a bottom wall and upwardly projecting sidewall; a cover having a top and depending side skirt structure which telescopes with respect to the upwardly projecting sidewall of the main tank; ballast supported near the lower edge of said side skirt; a ballast-engaging, liquid-containing well joined to said sidewall of said main tank such that said cover provides a gas-tight seal when said ballast interacts with liquid in said well so as to be partially emerged or fully submerged in the liquid; liquid fill means interacting with said well to maintain a predetermined liquid level in the well when said ballast is at least partially emerged from the liquid in said well; and overflow means interacting with said well to maintain a predetermined liquid level in the well when said ballast is submerged in the liquid in the well.

Wight, J.L.; Cook, L.W.

1993-08-24T23:59:59.000Z

196

Treatment of Wine Distillery Wastewater Using an Anaerobic Moving Bed Biofilm Reactor with Low Density of Polyethylene Support  

Science Conference Proceedings (OSTI)

An anaerobic moving bed biofilm reactor filled with small and low density polyethylene support as biofilm carrier was operated to treat wine distillery wastewater for nearly 8 months. The support packed in the reactor is Bioflow 30 with density 0.92g/cm3 ... Keywords: Anaerobic digestion, moving bed biofilm reactor, low density polyethylene support, wine distillery wastewater

Chai Sheli; Rene Moletta

2010-03-01T23:59:59.000Z

197

Use of 18S-rRNA-targeted oligonucleotide probes for detection and quantification of anaerobic fungi  

E-Print Network (OSTI)

Use of 18S-rRNA-targeted oligonucleotide probes for detection and quantification of anaerobic fungi Clermont-Ferrand-Theix, 63122 Saint-Genès-Champanelle, France Strictly anaerobic fungi are natural the subject of numerous studies (Fonty and Joblin, 1991, in: Physio- logical aspects of digestion

Recanati, Catherine

198

By-Products Utilization  

E-Print Network (OSTI)

information about fundamentals and processes on composting and anaerobic digestion, and compiling an overview the biological, chemical, physical, and thermodynamic fundamentals. KEYWORDS Composting; anaerobic digestion, anaerobic digesters, and composting facilities (Palmisano and Barlaz, 1996). In this paper, landfills

Wisconsin-Milwaukee, University of

199

Anaerobic thermophilic culture  

DOE Patents (OSTI)

A newly discovered thermophilic anaerobe is described that was isolated in a biologically pure culture and designated Thermoanaerobacter ethanolicus ATCC 3/550. T. Ethanolicus is cultured in aqueous nutrient medium under anaerobic, thermophilic conditions and is used in a novel process for producing ethanol by subjecting carbohydrates, particularly the saccharides, to fermentation action of the new microorganism in a biologically pure culture.

Ljungdahl, Lars G. (Athens, GA); Wiegel, Jurgen K. W. (Gottingen, DE)

1981-01-01T23:59:59.000Z

200

Opportunities for Open Automated Demand Response in Wastewater Treatment Facilities in California - Phase II Report. San Luis Rey Wastewater Treatment Plant Case Study  

E-Print Network (OSTI)

anaerobic digestion is biogas which contains 50–70 percentPlant collects this biogas and uses it in the cogeneration

Thompson, Lisa

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

doi:10.1128/mBio.00159-11. mBio.Methanogenic Wastewater Digester Aggregates  

E-Print Network (OSTI)

portion of the TVS readily decomposes and forms biogas under anaerobic conditions. The remainder is gener solids content of the feedstock. Cow manure slurry at 5% solids content released up to 30% more biogas in a mesophilic anaerobic digester with an HRT of 28 d. Biogas yields ranged between 0.65 and 0.86 m3 kg-1 VS

Lovley, Derek

202

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

The basic energy conversion system being considered in thisEnergy Fixation and Conversion with Algal Bacterial Systems/energy producer based on current methane prices. bility of a kelp to methane conversion system

Haven, Kendall F.

2011-01-01T23:59:59.000Z

203

Anaerobic Digester Gas-to-Electricity Rebate and Performance Incentive  

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

Note: This program is not currently accepting applications. Check back for updates regarding future solicitations.

204

Marine biomass system: anaerobic digestion and production of methane  

DOE Green Energy (OSTI)

Two approaches to kelp conversion to methane are described. First, a large (10.56 mi/sup 2/) oceanic farm using an artificial substrate and an upwelling system to deliver nutrient-rich deep ocean water to the kelp bed is described. This system can yield as much as 50 tons of kelp (dry ash free - DAF) per acre-year. Kelp are harvested by a specially designed 30,000 DWT ship and delivered to an onshore processing plant as a ground kelp slurry. The second system involves the use of a natrual coastal kelp bed. Growth rates in this bed are stimulated by a nutrient rich sewer outfall. A conceptual model is presented for calculation of the growth rate of kelp in this natural bed which can reach 15 tons (DAF) per acre-year. The harvest activity and processing plant are similar to those for oceanic farm system. In the next section of this report, the overall concept of kelp production and conversion to methane is discussed. In Section III the general design of the ocean farm system is presented and discussed while Section IV contains a similar description for the natural bed system. Section V presents the capital requirements and operational labor, resources and material requirements. Section VI describes the environmental residuals created by the operation of either system and, to the extent possible, quantifies the rate at which these residuals are generated. In addition to the technical data reported herein, cost data have been generated for the various processes and components utilized in each solar technology. The requirements for costing information basically arise from the need to compute parameters such as investment demands, employment patterns, material demands and residual levels associated with each technology for each of several national and regional scenarios.

Haven, K.F.; Henriquez, M.; Ritschard, R.L.

1979-04-01T23:59:59.000Z

205

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

flow from an on-site steam turbine to raise the kelp to 45°Ca 1200 Kw electric steam turbine/generator system. CapitalFinally, the waste steam stream from the turbine is used to

Haven, Kendall F.

2011-01-01T23:59:59.000Z

206

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network (OSTI)

Design Parameters Marine Biomass Production Sea Farmof Various Types of Biomass . Biomethanation Parameters.Proceedings, Fuels from Biomass Symposium. University of

Haven, Kendall F.

2011-01-01T23:59:59.000Z

207

Microbial Ecology of Thermophilic Anaerobic Digestion. Final Report  

DOE R&D Accomplishments (OSTI)

This grant supported research on methanogenic archaea. The two major areas that were supported were conversion of acetic acid to methane and nitrogen fixation by Methanosarcina. Among the achievements of this research were the isolation of novel methanogenic cultures, elucidation of the pathways from acetate to methane, description of a specific DNA-binding complex in nitrogen fixing methanogens, and demonstration of an alternative nitrogenase in Methanosarcina.

Zinder, Stephen H.

2000-04-15T23:59:59.000Z

208

Kinetics of inactivation of indicator pathogens during thermophilic anaerobic digestion  

E-Print Network (OSTI)

in large amounts in coal and natural gas processing, petroleum industries, biogas production, and sewage

209

IMPROVING BIOGAS PRODUCTION BY ANAEROBIC DIGESTION OF DIFFERENT SUBSTRATES.  

E-Print Network (OSTI)

?? Global energy demand is rapidly increasing. In contrast, fossil fuel reserves are decreasing. Today, one of the major challenge is energy supply for the… (more)

Ertem, Funda Cansu

2011-01-01T23:59:59.000Z

210

Cost Analysis and Evaluation of Syngas Synthesis through Anaerobic Digestion.  

E-Print Network (OSTI)

??Synthetic fuel, which is generated from syngas via Fischer – Tropsch synthesis, provides the world with an alternative for conventional fossil energy resources. Generating syngas… (more)

Tong, Yun

2012-01-01T23:59:59.000Z

211

Anaerobic thermophilic culture system  

DOE Patents (OSTI)

A mixed culture system of the newly discovered microorganism Thermoanaerobacter ethanolicus ATCC31550 and the microorganism Clostridium thermocellum ATCC31549 is described. In a mixed nutrient culture medium that contains cellulose, these microorganisms have been coupled and cultivated to efficiently ferment cellulose to produce recoverable quantities of ethanol under anaerobic, thermophilic conditions.

Ljungdahl, Lars G. (Athens, GA); Wiegel, Jurgen K. W. (Gottingen, DE)

1981-01-01T23:59:59.000Z

212

Clean Energy Technologies: A Preliminary Inventory of the Potential for Electricity Generation  

E-Print Network (OSTI)

27 17. Anaerobic Digestion -29 18. Anaerobic Digestion - Municipal31 19. Anaerobic Digestion - Industrial

Bailey, Owen; Worrell, Ernst

2005-01-01T23:59:59.000Z

213

Turkey vs. human digestion  

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

Turkey vs. human digestion Turkey vs. human digestion Name: wallyb Location: N/A Country: N/A Date: N/A Question: How is the digestive system of turkeys different from that of humans? Replies: Hmmm.. been a while since I had sophomore biology, so I can't completely answer this one, but I can say a few things. One, since turkeys are birds, and birds as a general rule have not had teeth for several million years at least, the turkey needs a way to mash up its food -- thus, the crop, which is essentially like another stomach: the turkey (and many other birds, for that matter) swallows small stones which serve in lieu of teeth, mashing up food via muscular action in the crop, from whence the "chewed" food moves on into the rest of the digestive tract. As for any other differences, I'll have to leave that to someone else with more ornithological experience...

214

Steam Digest 2001  

SciTech Connect

Steam Digest 2001 chronicles BestPractices Program's contributions to the industrial trade press for 2001, and presents articles that cover technical, financial and managerial aspects of steam optimization.

2002-01-01T23:59:59.000Z

215

Steam Digest 2001  

SciTech Connect

Steam Digest 2001 chronicles BestPractices Program's contributions to the industrial trade press for 2001, and presents articles that cover technical, financial and managerial aspects of steam optimization.

Not Available

2002-01-01T23:59:59.000Z

216

Anaerobic fermentation of simulated in-situ oil shale retort water  

DOE Green Energy (OSTI)

The feasibility of removing soluble organics from oil shale retort water by anaerobic digestion with methane production was experimentally investigated. The following conclusions were made. The retort water studied had to be pretreated to remove toxic and add deficient constituents before it could be successfully treated with the anaerobic fermentation process. Pretreatment included pH adjustment to 7, ammonia reduction, and nutrient addition. A digested sludge from a conventional municipal sewage treatment plant was successfully acclimated to the retort water studied. A major fraction of the organics in the retort water studied was stabilized by conversion to CH/sub 4/ and CO/sub 2/ using the anaerobic fermentation process. BOD/sub 5/ and COD removal efficiences were 76 to 80 percent. The effluent from anaerobic fermentation of the retort water studied (BOD/sub 5/ : 530 to 580 mg/l) may be suitable for treatment by conventional aerobic processes. The growth of the methane formers, which stabilize the organics, is nutrient limited in the retort water studied. The pretreatment of the retort water studied removed 49 percent of the BOD/sub 5/. This was probably due to the reduction in solubility of high molecular weight fatty acids at neutral pHs. A major component removed from the retort water studied during anaerobic fermentation was fatty acids. The long hydraulic residence time used in this study would not be used in practice.

Ossio, E.A.; Fox, J.P.; Thomas, J.F.; Poulson, R.E.

1977-11-01T23:59:59.000Z

217

Page not found | Department of Energy  

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

Download EA-1907: Final Environmental Assessment Western Plains Energy, LLC Biogas Anaerobic Digester Facility, Oakley, Kansas http:energy.govnepadownloads...

218

Reading Comprehension - Digestion and Nutrition  

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

Digestion and Nutrition Digestion and Nutrition 1. The pouchlike muscular organ that secretes acids and digestive enzymes is the _________ stomach esophagus intestines . 2. _________ saliva enzymes chime is the watery material that results form digestion in the stomach. 3. Iron, potassium, and iodine are _________ vitamins minerals amino acids . 4. The human body is about 60 percent _________ salt water nutrients . 5. The teeth break down food by _________ chemical digestion mechanical digestion . 6. _________ Teeth Your tongue Saliva in the mouth helps to chemically digest food. 7. _________ Mechanical digestion Chemical digestion takes place in the mouth, stomach, and small intestine with the help of chemicals called _________ amino acids vitamins enzymes . 8. Proteins are made up of smaller building blocks called _________

219

Anxiety and Digestion  

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

Anxiety and Digestion Anxiety and Digestion Name: Donna Location: N/A Country: N/A Date: N/A Question: Explain how anxiety may be responsible for slowing down the process of digestion Replies: Your body really has 2 nervous systems. One is the peripheral nervous system that controls how you move and think etc. the other is called the autonomic (not automatic) nervous system It controls all of your everyday functions such as your heart, your blood vessel diameter and your digestive system, etc. There are 2 divisions of the ANS. One is called the parasympathetic and the other is the sympathetic. The parasympathetic is your everyday division, and is usually in control. When you come upon a stressful or dangerous situation, your sympathetic division takes over. It gets you ready to "fight or flee". Some parts of your body are put on alert. Your blood vessels constrict in some areas and dilate in others to get blood flowing to areas that will help you in a dangerous situation and to get glucose (fuel) to those areas quickly. Your heart starts to beat faster to send blood to those areas quicker, your pupils dilate. Other parts of your body are put on hold; those that aren't needed in a danger situation. Your digestive system is one that is put on hold. When you are under stress, your body doesn't know whether you are in danger or not but acts like it is. So if you are under constant stress, your digestive system is affected.

220

Maine | Department of Energy  

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

septage, food waste, and wood wastes. The program also regulates facilities that compost, aerobically digest, anaerobically digest, air dry, heat dry, heat treat, lime...

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Optimization Online Digest -- August 2013  

E-Print Network (OSTI)

Optimization of running strategies based on anaerobic energy and variations of velocity. Amandine Aftalion, J. Frédéric Bonnans Convergence Analysis of DC ...

222

PalladianDigest Transportation  

E-Print Network (OSTI)

PalladianDigest CONNECT. EMPOWER. GROW. Tackling Transportation Challenges Nebraska has been a vital link in the nation's transportation system since the days when carts, wagons to University of Nebraska­Lincoln research. That's fine with UNL transportation researchers, said Larry Rilett

Farritor, Shane

223

Optimization Online Digest -- December 2012  

E-Print Network (OSTI)

Optimization Online Digest — December 2012. Applications ... Solving the integrated airline recovery problem using column-and-row generation. Stephen J  ...

224

Optimization Online Digest -- May 2013  

E-Print Network (OSTI)

Optimization Online Digest — May 2013. Applications — OR and Management Sciences Practical Multi-objective Programming Isaac Siwale Solution of ...

225

Optimization Online Digest -- September 2013  

E-Print Network (OSTI)

Optimization Online Digest — September 2013. Applications — OR and Management Sciences The Vehicle Platooning Problem: Computational Complexity and ...

226

Optimization Online Digest -- March 2013  

E-Print Network (OSTI)

Optimization Online Digest — March 2013. Applications — OR and Management Sciences Solution Methods for the Periodic Petrol Station Replenishment ...

227

Optimization Online Digest -- April 2010  

E-Print Network (OSTI)

Optimization Online Digest — April 2010. Applications — OR and Management Sciences Scheduling Flexible Maintenance Activities subject to Job-Dependent ...

228

DEVELOPMENT OF IMPROVED ANAEROBIC GROWTH OF BACILLUS MOJAVENSIS STRAIN JF-2 FOR THE PURPOSE OF IMPROVED ANAEROBIC BIOSURFACTANT PRODUCTION FOR ENHANCED OIL RECOVERY  

SciTech Connect

Our work focuses on the use of microorganisms to recover petroleum hydrocarbons that remain entrapped after current recovery technologies reach their economic limit. Capillary forces between the hydrocarbon and aqueous phases are largely responsible for trapping the hydrocarbons in the pores of the rock and large reductions in the interfacial tension between the hydrocarbon and aqueous phases are needed for hydrocarbon mobilization (1-3, 10, 11). Microorganisms produce a variety of biosurfactants (4), several of which generate the ultra low interfacial tensions needed for hydrocarbon mobilization (4, 5, 8). In particular, the lipopeptide biosurfactant produced by Bacillus mojavensis strain JF-2 reduces the interfacial tension between hydrocarbon and aqueous phases to very low levels (<0.016 mN/m) (8) (9). B. mojavensis JF-2 grows under the environmental conditions found in many oil reservoirs, i. e., anaerobic, NaCl concentrations up to 80 g l{sup -1}, and temperatures up to 45 C (6, 7), making it ideally suited for in situ applications. However, anaerobic growth of B. mojavensis JF-2 was inconsistent and difficult to replicate, which limited its use for in situ applications. Our initial studies revealed that enzymatic digests, such as Proteose Peptone, were required for anaerobic growth of Bacillus mojavensis JF-2. Subsequent purification of the growth-enhancing factor in Proteose Peptone resulted in the identification of the growth-enhancing factor as DNA or deoxyribonucleosides. The addition of salmon sperm DNA, herring sperm DNA, E. coli DNA or synthetic DNA (single or double stranded) to Medium E all supported anaerobic growth of JF-2. Further, we found that JF-2 required all four deoxyribonucleosides (deoxyadeonosine, deoxyguanosine, deoxycytidine and thymidine) for growth under strict anaerobic conditions. The requirement for the deoxyribonucleosides did not occur under aerobic growth conditions. DNA was not used as a sole energy source; sucrose was required for anaerobic growth and biosurfactant production in DNA-supplemented Medium E. In addition to DNA or deoxyribonucleosides, nitrate, amino acids and vitamins were all required for anaerobic growth of JF-2. Bacillus mojavensisT (ABO21191), Bacillus mojavensis, strain ROB2 also required DNA or deoxyribonucleosides for anaerobic growth. The improved anaerobic growth of Bacillus mojavensis JF-2 was a prerequisite for studies that will lead to improved anaerobic biosurfactant production.

M.J. McInerney; M. Folmsbee; D. Nagle

2004-05-31T23:59:59.000Z

229

Experimental co-digestion of corn stalk and vermicompost to improve biogas production  

SciTech Connect

Anaerobic co-digestion of corn stalk and vermicompost (VC) as well as mono-digestion of corn stalk were investigated. Batch mono-digestion experiments were performed at 35 {+-} 1 {sup o}C and initial total solid loading (TSL) ranged from 1.2% to 6.0%. Batch co-digestion experiments were performed at 35 {+-} 1 {sup o}C and initial TSL of 6% with VC proportions ranged from 20% to 80% of total solid (TS). For mono-digestion of corn stalk, a maximum methane yield of 217.60 {+-} 13.87 mL/g TS{sub added} was obtained at initial TSL of 4.8%, and acidification was found at initial TSL of 6.0% with the lowest pH value of 5.10 on day 4. Co-digestion improved the methane yields by 4.42-58.61% via enhancing volatile fatty acids (VFAs) concentration and pH value compared with mono-digestion of corn stalk. The maximum biogas yield of 410.30 {+-} 11.01 mL/g TS{sub added} and methane yield of 259.35 {+-} 13.85 mL/g TS{sub added} were obtained for 40% VC addition. Structure analysis by X-ray diffractometry (XRD) showed that the lowest crystallinity of 35.04 of digested corn stalk was obtained from co-digestion with 40% VC, which decreased 29.4% compared to 49.6 obtained from un-treated corn stalk. It is concluded that co-digestion with VC is beneficial for improving biodigestibility and methane yield from corn stalk.

Chen Guangyin [State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China); Zheng Zheng, E-mail: zzhenghj@fudan.edu.c [State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China); Department of Environmental Science and Engineering, Fudan University, Shanghai 200433 (China); Yang Shiguan [National Engineering Laboratory of Biomass Power Generation Equipment, School of Renewable Energy, North China Electric Power University, Beijing 102206 (China); Fang Caixia; Zou Xingxing; Luo Yan [State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China)

2010-10-15T23:59:59.000Z

230

Optimization Online Digest -- June 2012  

E-Print Network (OSTI)

Optimization Online Digest — June 2012. Applications — OR and ... A new warmstarting strategy for the primal-dual column generation method. Jacek Gondzio ...

231

Optimization Online Digest -- January 2013  

E-Print Network (OSTI)

Optimization Online Digest — January 2013. Applications — OR and Management Sciences A two-step optimization approach for job shop scheduling problem ...

232

Anaerobic microbial dissolution of lead and production of organic acids  

DOE Patents (OSTI)

The present invention relates to a method of solubilizing lead, in the form of lead oxide, found in industrial wastes, before these wastes are dumped into the environment. The lead is solubilized by dissolving the lead oxide in the wastes through contact with an anaerobic bacterial culture containing the bacterium ATCC No. 53464. The solubilized lead can then be removed from the wastes by chemical separation. It could also be removed by extending the contact period with the bacterial culture. As the culture grows, the solubilized lead is removed from the wastes by bioaccumulation by the microorganism or by immobilization by a polymer-like material produced by the microorganism. At this point, the lead is then removed from the wastes when the waste material is separated from the bacterial culture. If desired, the bacterial culture could be digested at this point to yield relatively pure lead for further industrial use.

Francis, A.J.; Dodge, C.; Chendrayan, K.

1986-02-28T23:59:59.000Z

233

Original article Digestibility, blood levels of nutrients  

E-Print Network (OSTI)

abomasal emptying of fat and probably protein. Apparent faecal nitrogen digestibility was lower ( P5 0 and render them very digestible. digestion / skin response / preruminant calf / soyabean / lupin Résumé

Recanati, Catherine

234

Greenhouse gases emissions accounting for typical sewage sludge digestion with energy utilization and residue land application in China  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer GHGs emissions from sludge digestion + residue land use in China were calculated. Black-Right-Pointing-Pointer The AD unit contributes more than 97% of total biogenic GHGs emissions. Black-Right-Pointing-Pointer AD with methane recovery is attractive for sludge GHGs emissions reduction. - Abstract: About 20 million tonnes of sludge (with 80% moisture content) is discharged by the sewage treatment plants per year in China, which, if not treated properly, can be a significant source of greenhouse gases (GHGs) emissions. Anaerobic digestion is a conventional sewage sludge treatment method and will continue to be one of the main technologies in the following years. This research has taken into consideration GHGs emissions from typical processes of sludge thickening + anaerobic digestion + dewatering + residue land application in China. Fossil CO{sub 2}, biogenic CO{sub 2}, CH{sub 4,} and avoided CO{sub 2} as the main objects is discussed respectively. The results show that the total CO{sub 2}-eq is about 1133 kg/t DM (including the biogenic CO{sub 2}), while the net CO{sub 2}-eq is about 372 kg/t DM (excluding the biogenic CO{sub 2}). An anaerobic digestion unit as the main GHGs emission source occupies more than 91% CO{sub 2}-eq of the whole process. The use of biogas is important for achieving carbon dioxide emission reductions, which could reach about 24% of the total CO{sub 2}-eq reduction.

Niu Dongjie, E-mail: niudongjie@tongji.edu.cn [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China); UNEP-Tongji Institute of Environment for Sustainable Development, 1239 Siping Road, Shanghai 200092 (China); Huang Hui [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China); Dai Xiaohu [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China); National Engineering Research Center for Urban Pollution Control, Shanghai 200092 (China); Zhao Youcai [Key Laboratory of Yangtze Aquatic Environment, Ministry of Education, College of Environmental Science and Engineering of Tongji University, 1239 Siping Road, Shanghai 200092 (China)

2013-01-15T23:59:59.000Z

235

Indiana | Department of Energy  

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

Biomass Anaerobic Digestion Facilities and Biomass Gasification Facilities (Indiana) The Indiana Department of Environmental Management requires permits before the construction or...

236

Anaerobic treatment of sludge from a nitrification-denitrification landfill leachate plant  

Science Conference Proceedings (OSTI)

The viability of anaerobic digestion of sludge from a MSW landfill leachate treatment plant, with COD values ranging between 15,000 and 19,400 mg O{sub 2} dm{sup -3}, in an upflow anaerobic sludge blanket reactor was studied. The reactor employed had a useful capacity of 9 l, operating at mesophilic temperature. Start-up of the reactor was carried out in different steps, beginning with diluted sludge and progressively increasing the amount of sludge fed into the reactor. The study was carried out over a period of 7 months. Different amounts of methanol were added to the feed, ranging between 6.75 and 1 cm{sup 3} dm{sup -3} of feed in order to favour the growth of methanogenic flora. The achieved biodegradation of the sludge using an upflow anaerobic sludge blanket Reactor was very high for an HRT of 9 days, obtaining decreases in COD of 84-87% by the end of the process. Purging of the digested sludge represented {approx}16% of the volume of the treated sludge.

Maranon, E. [Chemical and Environmental Engineering Department, Higher Polytechnic School of Engineering, University of Oviedo, Campus of Viesques, 33204 Gijon (Spain)]. E-mail: emara@uniovi.es; Castrillon, L. [Chemical and Environmental Engineering Department, Higher Polytechnic School of Engineering, University of Oviedo, Campus of Viesques, 33204 Gijon (Spain); Fernandez, Y. [Chemical and Environmental Engineering Department, Higher Polytechnic School of Engineering, University of Oviedo, Campus of Viesques, 33204 Gijon (Spain); Fernandez, E. [COGERSA, 33697 Serin, Gijon (Spain)

2006-07-01T23:59:59.000Z

237

Model calibration and validation for OFMSW and sewage sludge co-digestion reactors  

SciTech Connect

Highlights: > Disintegration is the limiting step of the anaerobic co-digestion process. > Disintegration kinetic constant does not depend on the waste particle size. > Disintegration kinetic constant depends only on the waste nature and composition. > The model calibration can be performed on organic waste of any particle size. - Abstract: A mathematical model has recently been proposed by the authors to simulate the biochemical processes that prevail in a co-digestion reactor fed with sewage sludge and the organic fraction of municipal solid waste. This model is based on the Anaerobic Digestion Model no. 1 of the International Water Association, which has been extended to include the co-digestion processes, using surface-based kinetics to model the organic waste disintegration and conversion to carbohydrates, proteins and lipids. When organic waste solids are present in the reactor influent, the disintegration process is the rate-limiting step of the overall co-digestion process. The main advantage of the proposed modeling approach is that the kinetic constant of such a process does not depend on the waste particle size distribution (PSD) and rather depends only on the nature and composition of the waste particles. The model calibration aimed to assess the kinetic constant of the disintegration process can therefore be conducted using organic waste samples of any PSD, and the resulting value will be suitable for all the organic wastes of the same nature as the investigated samples, independently of their PSD. This assumption was proven in this study by biomethane potential experiments that were conducted on organic waste samples with different particle sizes. The results of these experiments were used to calibrate and validate the mathematical model, resulting in a good agreement between the simulated and observed data for any investigated particle size of the solid waste. This study confirms the strength of the proposed model and calibration procedure, which can thus be used to assess the treatment efficiency and predict the methane production of full-scale digesters.

Esposito, G., E-mail: giovanni.esposito@unicas.it [Department of Mechanics, Structures and Environmental Engineering, University of Cassino, via Di Biasio 43, 03043 Cassino (Italy); Frunzo, L., E-mail: luigi.frunzo@unina.it [Department of Mathematics and Applications Renato Caccioppoli, University of Naples Federico II, via Cintia, Monte S. Angelo, I-80126 Naples (Italy); Panico, A., E-mail: anpanico@unina.it [Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples (Italy); Pirozzi, F., E-mail: francesco.pirozzi@unina.it [Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples (Italy)

2011-12-15T23:59:59.000Z

238

Investigation of the Effect of In-Situ Catalyst on the Steam Hydrogasification of Biomass  

E-Print Network (OSTI)

Biopower - Logging - Anaerobic digestion - Heat - Wood,offensive odors. Anaerobic digestion is widely usedstabilization. Anaerobic digestion uses microorganisms to

FAN, XIN

2012-01-01T23:59:59.000Z

239

Development and Application of Advanced Models for Steam Hydrogasification: Process Design and Economic Evaluation  

E-Print Network (OSTI)

of carbohydrates (anaerobic digestion) and liquefaction ofvia combustion or anaerobic digestion. The geographicmethane produced by anaerobic digestion and biodiesel

Lu, Xiaoming

2012-01-01T23:59:59.000Z

240

Managing R&D Risk in Renewable Energy  

E-Print Network (OSTI)

from biomass using anaerobic digestion or fermentativegas electricity anaerobic digestion electricity hydrogenproduced from anaerobic digestion. Landfill gas electricity

Rausser, Gordon C.; Papineau, Maya

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Canastota Renewable Energy Facility Project  

SciTech Connect

The project was implemented at the Madison County Landfill located in the Town of Lincoln, Madison County, New York. Madison County has owned and operated the solid waste and recycling facilities at the Buyea Road site since 1974. At the onset of the project, the County owned and operated facilities there to include three separate landfills, a residential solid waste disposal and recycled material drop-off facility, a recycling facility and associated administrative, support and environmental control facilities. This putrescible waste undergoes anaerobic decomposition within the waste mass and generates landfill gas, which is approximately 50% methane. In order to recover this gas, the landfill was equipped with gas collection systems on both the east and west sides of Buyea Road which bring the gas to a central point for destruction. In order to derive a beneficial use from the collected landfill gases, the County decided to issue a Request for Proposals (RFP) for the future use of the generated gas.

Blake, Jillian; Hunt, Allen

2013-12-13T23:59:59.000Z

242

Nuclear Facilities Production Facilities  

National Nuclear Security Administration (NNSA)

Nuclear Security Administration under contract DE-AC04-94AL85000. Sand 2011-4582P. ENERGY U.S. DEPARTMENT OF Gamma Irradiation Facility (GIF) The GIF provides test cells for...

243

Biofuels Digest | Open Energy Information  

Open Energy Info (EERE)

Digest Digest Jump to: navigation, search Name Biofuels Digest Address 801 Brickell Avenue Suite 900 Place Miami, Florida Zip 33131 Sector Services Product Information Year founded 2007 Number of employees 1-10 Phone number 786-393-8530 Website http://www.biofuelsdigest.com Coordinates 25.765653°, -80.190405° 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":25.765653,"lon":-80.190405,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

244

DIGESTER GAS - FUEL CELL - PROJECT  

DOE Green Energy (OSTI)

GEW has been operating the first fuel cell in Europe producing heat and electricity from digester gas in an environmentally friendly way. The first 9,000 hours in operation were successfully concluded in August 2001. The fuel cell powered by digester gas was one of the 25 registered ''Worldwide projects'' which NRW presented at the EXPO 2000. In addition to this, it is a key project of the NRW State Initiative on Future Energies. All of the activities planned for the first year of operation were successfully completed: installing and putting the plant into operation, the transition to permanent operation as well as extended monitoring till May 2001.

Dr.-Eng. Dirk Adolph; Dipl.-Eng. Thomas Saure

2002-03-01T23:59:59.000Z

245

Method to Produce Highly Digestible, Pretreated ...  

Method to Produce Highly Digestible, Pretreated Lignocellulosic Biomass Using Anhydrous Liquid Ammonia Inventors: Shishir Chundawat, Leonardo Sousa, ...

246

Siting Requirements for Anaerobic Lagoons (Iowa)  

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

This statute provides regulations for required distances between anaerobic lagoons and residences or public use areas. The separation distances may be waived or reduced with the agreement of the...

247

Research Facilities  

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

FLEX lab image, windows testing lab, scientist inside a lab, Research Facilities EETD maintains advanced research and test facilities for buildings, energy technologies, air...

248

Microcontroller-Based Fuzzy System to Optimize the Anaerobic Digestion in Biogas Reactors  

Science Conference Proceedings (OSTI)

This paper describes a fuzzy-system for the optimization of the yield of biogas at biogas plants. The algorithm introduced allows the transformation of a PC supported developed fuzzy-model to a microcontroller-system. This system can be utilised as a ...

Steffen Patzwahl; Thomas Nacke; Dieter Frense; Dieter Beckmann; Klaus-Dietrich Kramer; Tobias Tautz; Gerd-Rainer Vollmer

2001-10-01T23:59:59.000Z

249

Characterization of Biogas from Anaerobically Digested Dairy Waste for Energy Use .  

E-Print Network (OSTI)

??As the third largest dairy producer in the United States, New York is faced with the critical issue of agricultural waste management. The environmental impacts… (more)

Bothi, Kimberly L.

2007-01-01T23:59:59.000Z

250

The Potential of Anaerobic Digestion Technology to Treat Coffee Waste in Huatusco, Mexico.  

E-Print Network (OSTI)

??This research proposes a system that uses the waste generated by coffee processing to generate biogas and fertilizer, called AD-Coffee Waste System (AD-CWS). The biogas… (more)

Bombardiere, Ysabel Estrada

2006-01-01T23:59:59.000Z

251

Alternative energy systems for Puerto Rico : analysis and comparison of anaerobic waste digestion.  

E-Print Network (OSTI)

??Energy prices in Puerto Rico are increasing constantly, making evident the need for alternative energy sources. Several methods to produce power have been developed as… (more)

Cuevas, Emil A. (Emil André Cuevas Meléndez)

2006-01-01T23:59:59.000Z

252

Alternative energy systems for Puerto Rico : analysis and comparison of anaerobic waste digestion  

E-Print Network (OSTI)

Energy prices in Puerto Rico are increasing constantly, making evident the need for alternative energy sources. Several methods to produce power have been developed as alternatives to burning petroleum, such as solar energy ...

Cuevas, Emil A. (Emil André Cuevas Meléndez)

2006-01-01T23:59:59.000Z

253

Facility Microgrids  

Science Conference Proceedings (OSTI)

Microgrids are receiving a considerable interest from the power industry, partly because their business and technical structure shows promise as a means of taking full advantage of distributed generation. This report investigates three issues associated with facility microgrids: (1) Multiple-distributed generation facility microgrids' unintentional islanding protection, (2) Facility microgrids' response to bulk grid disturbances, and (3) Facility microgrids' intentional islanding.

Ye, Z.; Walling, R.; Miller, N.; Du, P.; Nelson, K.

2005-05-01T23:59:59.000Z

254

The Cultivar newsletter, Spring/Summer 2005  

E-Print Network (OSTI)

Jon Kersey Anaerobic Residue Digestion Offers Promise fora trial of the anaerobic residue digestion (“tarping”)

Brown, Martha

2005-01-01T23:59:59.000Z

255

Review of International Experience with Renewable Energy Obligation Support Mechanisms  

E-Print Network (OSTI)

gasification and anaerobic digestion of mixed waste isgasification and anaerobic digestion). • Energy crops,

Wiser, R.

2005-01-01T23:59:59.000Z

256

Polices for Controlling Groundwater Pollution from Concentrated Animal Feeding Operations  

E-Print Network (OSTI)

147, 2003. D. Simpkins. Anaerobic digestion faqs. Technicalwetland treatment, or anaerobic digestion [Morse et al. ,

Wang, Jingjing

2012-01-01T23:59:59.000Z

257

Community Renewable Energy Deployment: Sacramento Municipal Utility...  

Open Energy Info (EERE)

photovoltaic installation along California Highway 50 and anaerobic digestion and biogas production at two separate dairies, at a wastewater treatment facility, and at a...

258

Kansas | Department of Energy  

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

October 13, 2011 EA-1907: Finding of No Significant Impact Western Plains Energy, LLC Biogas Anaerobic Digester Facility, Oakley, Kansas October 13, 2011 EA-1907: Final...

259

EA-1907: Finding of No Significant Impact | Department of Energy  

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

Impact EA-1907: Finding of No Significant Impact Western Plains Energy, LLC Biogas Anaerobic Digester Facility, Oakley, Kansas Based on the analysis in the Final EA and...

260

Page not found | Department of Energy  

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

newest biodigester at the Farm Power facility in Washington generates electricity from biogas created from bacteria's anaerobic digestion of cow manure. http:energy.govarticles...

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Page not found | Department of Energy  

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

energy.govnepadownloadscx-003108-categorical-exclusion-determination Page EA-1907: Biogas Anaerobic Digester Facility, Oakley, Kansas This EA evaluates the environmental...

262

Optimization Online Digest -- March 2002  

E-Print Network (OSTI)

A New Mathematical-Programming Framework for Facility-Layout Design Miguel F. Anjos, Anthony ... DSDP4 Software User Guide Steven Benson, Yinyu Ye.

263

Co-digestion of sewage sludge with glycerol to boost biogas production  

Science Conference Proceedings (OSTI)

The feasibility of adding crude glycerol from the biodiesel industry to the anaerobic digesters treating sewage sludge in wastewater treatment plants was studied in both batch and continuous experiments at 35 {sup o}C. Glycerol addition can boost biogas yields, if it does not exceed a limiting 1% (v/v) concentration in the feed. Any further increase of glycerol causes a high imbalance in the anaerobic digestion process. The reactor treating the sewage sludge produced 1106 {+-} 36 ml CH{sub 4}/d before the addition of glycerol and 2353 {+-} 94 ml CH{sub 4}/d after the addition of glycerol (1% v/v in the feed). The extra glycerol-COD added to the feed did not have a negative effect on reactor performance, but seemed to increase the active biomass (volatile solids) concentration in the system. Batch kinetic experiments showed that the maximum specific utilization rate ({mu}{sub max}) and the saturation constant (K{sub S}) of glycerol were 0.149 {+-} 0.015 h{sup -1} and 0.276 {+-} 0.095 g/l, respectively. Comparing the estimated values with the kinetics constants for propionate reported in the literature, it can be concluded that glycerol uptake is not the rate-limiting step during the process.

Fountoulakis, M.S., E-mail: mfountoul@steg.teiher.g [School of Agricultural Technology, Technological Educational Institute of Crete, Heraklion (Greece); Petousi, I.; Manios, T. [School of Agricultural Technology, Technological Educational Institute of Crete, Heraklion (Greece)

2010-10-15T23:59:59.000Z

264

King County Carbonate Fuel Cell Demonstration Project: Case Study of a 1MW Fuel Cell Power Plant Fueled by Digester Gas  

Science Conference Proceedings (OSTI)

This case study documents the first-year demonstration experiences of a 1-MW carbonate fuel cell system operating on anaerobic digester gas at a wastewater treatment plant in King County, Washington. The case study is one of several fuel cell project case studies under research by the EPRI Distributed Energy Resources Program. This case study is designed to help utilities and other interested parties understand the early applications of fuel cell systems to help them in their resource planning efforts an...

2005-03-30T23:59:59.000Z

265

Anaerobic treatment of gasifier effluents. Quarterly report  

DOE Green Energy (OSTI)

This report summarizes the work performed during the quarter ending December 30, 1981. The major efforts have been directed toward the continued acclimation of two anaerobic treatment systems, start up of a third anaerobic treatment system, GC/MS characterization of the coal gasification wastewater, data acquisition for determination of distribution coefficients for the extraction of phenol from the wastewater using MIBK, and preliminary design of a solvent extraction system for wastewater pretreatment. The progress of these efforts are depicted in the Gannt Chart, along with project expenditures for the above contract, and are presented in detail in the following sections.

Cross, W.H.; Chian, E.S.K.; Pohland, F.G.; Giabbai, M.; Harper, S.R.; Kharkar, S.; Cheng, S.S.; Shuey, P.S.

1982-01-01T23:59:59.000Z

266

Application: Facilities  

Science Conference Proceedings (OSTI)

... Option.. Papavergos, PG; 1991. Halon 1301 Use in Oil and Gas Production Facilities: Alaska's North Slope.. Ulmer, PE; 1991. ...

2011-12-22T23:59:59.000Z

267

Digestion  

Science Conference Proceedings (OSTI)

Mar 4, 2013 ... Particle Size Distribution Model for Leaching Kinetics of Alumina: Li Bao1; Ting- an Zhang2; Weimin Long1; Anh V Nguyen3; Guozhi Lv2; Jia ...

268

Revealing Nature's Cellulase Diversity: The Digestion Mechanism  

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

the surface of the substrate. These results suggest that nature's repertoire of cellulose digestion paradigms remain only partially discovered and understood. I n nature, most...

269

Hemicellulases from anaerobic thermophiles. Progress report  

DOE Green Energy (OSTI)

The longterm goal of this research effort is to obtain an anaerobic thermophilic bacterium that efficiently converts various hemicellulose-containing biomass to ethanol over a broad pH range. The strategy is to modify the outfit and regulation of the rate-limiting xylanases, glycosidases and xylan esterases in the ethanologenic, anaerobic thermophile Thermoanaerobacter ethanolicus, which grows between pH 4.5 and 9.5. Although it utilizes xylans, the xylanase, acetyl(xylan) esterase and O-methylglucuronidase activities in T. ethanolicus are barely measurable and regarded as the rate limiting steps in its xylan utilization. Thus, and also due to the presently limited knowledge of hemicellulases in anaerobic thermophiles, we characterize the hemicellulolytic enzymes from this and other anaerobic thermophiles as enzyme donors. Beside the active xylosidase/arabinosidase from T. ethanolicus, exhibiting the two different activities, we characterized 2 xylosidases, two acetyl(xylan) esterases, and an O-methylglucuronidase from Thermoanaerobacterium spec. We will continue with the characterization of xylanases from novel isolated slightly acidophilic, neutrophilic and slightly alkalophilic thermophiles. We have cloned, subcloned and partially sequenced the 165,000 Da (2 x 85,000) xylosidase/arabinosidase from T. ethanolicus and started with the cloning of the esterases from Thermoanaerobacterium spec. Consequently, we will develop a shuttle vector and continue to apply electroporation of autoplasts as a method for cloning into T. ethanolicus.

Wiegel, J.

1994-05-01T23:59:59.000Z

270

(Anaerobic O-demethylation of phenylmethylethers)  

DOE Green Energy (OSTI)

This report covers progress made during the last 8--20 month interval. Topics covered include: the in vitro assay for anaerobic O-demethylation; fractionation of cell-free extracts; optimization of cellular AOD levels and structure-activity relationships; and analysis of corrinoid involvement in AOD. (JL)

Frazer, A.C.

1990-01-01T23:59:59.000Z

271

Video digest based on heart rate  

Science Conference Proceedings (OSTI)

In video digesting, not only features and keywords extracted from a content itself but viewer's input are essential to incorporate subjective impressions and perceived importance. The present study aims at providing heart rate based arousal level as ... Keywords: affect, emotion, heart rate, psychophysiology, video analysis, video digest

Satoshi Toyosawa; Takashi Kawai

2007-08-01T23:59:59.000Z

272

Waste-to-Energy Biomass Digester with Decreased Water Consumption  

Waste-to-Energy Biomass Digester with Decreased Water Consumption ... Able to digest multiple types of waste, including bovine, equine, and poultry manure

273

U.S. Nuclear Regulation Data (Information Digest, 2010 - 2011...  

Open Energy Info (EERE)

Nuclear Regulation Data (Information Digest, 2010 - 2011) The US Nuclear Regulatory Commission (NRC) publishes an Information Digest containing summary information about the NRC...

274

User Facilities  

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

Lawrence Berkeley National Laboratory's National User Facilities are available for cooperative research with institutions and the private sector worldwide. The Environmental...

275

U.S. Nuclear Regulation Data (Information Digest, 2010 - 2011) | OpenEI  

Open Energy Info (EERE)

Nuclear Regulation Data (Information Digest, 2010 - 2011) Nuclear Regulation Data (Information Digest, 2010 - 2011) Dataset Summary Description The US Nuclear Regulatory Commission (NRC) publishes an Information Digest containing summary information about the NRC and its industry. The report's appendices include demographic data on U.S. nuclear power reactors, both commercial and test facilities. Details include licensee data, location, and capacity. In addition there is information on dry spent fuel storage. The data include activities through 2009 or the most current data available. Source U.S. Nuclear Reactor Commission (USNRC) Date Released August 31st, 2010 (4 years ago) Date Updated Unknown Keywords nuclear Data application/vnd.ms-excel icon US Commercial Nuclear Power Reactors (xls, 132.6 KiB) application/vnd.ms-excel icon US Commercial Nuclear Power Reactors, Permanently Shutdown (xls, 32.8 KiB)

276

Mobile Facility  

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

Facility Facility AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Mobile Facilities Pictured here in Gan, the second mobile facility is configured in a standard layout. Pictured here in Gan, the second mobile facility is configured in a standard layout. To explore science questions beyond those addressed by ARM's fixed sites at

277

Anaerobic O-demethylation of phenylmethylethers  

DOE Green Energy (OSTI)

Anaerobic O-demethylation (AOD) of phenylmethylethers is a process of both basic and applied significance. The aryl-O-methyl ethers are abundant in natural products, particularly as components of lignin. They are present as methoxylated lignin monomers in anaerobic environments and can be completely degraded there by mixed microbial populations. AOD is an essential early step in this process, and it is also a key reaction in the utilization of the O-methyl substituent as a C-one substrate by acetogens. An understanding of the AOD reaction mechanism might suggest new ways in which chemicals could be derived from lignocellulosic materials. The biochemical mechanism for the anaerobic cleavage of the aryl-O-methyl ether bond is an intriguing, but relatively unexplored process. In contrast to aerobic O-demethylating enzymes, AOD appears to involve methyl group transfer. Thus, novel biochemical information on an important biotransformation reaction will be gained from the research proposed. Recently, we have shown that AOD activity is inducible and have developed an assay for detecting AOD activity in cell-free extracts of Acetobacterium woodii. AOD activity is stimulated in vitro by the addition of ATP (1mM) and pyruvate (30 mM), the K{sub M} for vanillate being 0.4 mM. In collaboration with protein purification experts, we proposed to purify the AOD enzyme and characterize the protein(s) and the enzymatic reaction involved. 8 figs., 5 tabs.

Frazer, A.C.; Young, L.Y.

1990-01-01T23:59:59.000Z

278

Digestion of protein in the equine small and large intestines  

E-Print Network (OSTI)

Four mature pony geldings weighing an average of 134 kg and fitted with ileal cannulas were used in two 4X4 Latin square experiments to determine the digestibility of forage and soybean meal protein in different segments of the equine digestive tract. Chromic oxide was fed in both trials to measure ileal flow and fecal excretion. Digestion and absorption of nitrogen was determined from changes in nitrogen:chromium ratios, and true digestion of nitrogen was computed by regression analyses. In trial 1, four diets containing varying ratios of chopped bermudagrass and alfalfa hays were fed. True total tract nitrogen digestibility was 89.6%. True digestibility of forage nitrogen in the small intestine was 40.5% in this trial, while true postileal digestibility was 78.1%. These data indicate that almost 90% of forage protein was digested over the total digestive tract. Approximately 45% of the digestible forage nitrogen was digested prececally with the remaining nitrogen being digested postileally. Thus, when ponies were fed all forage diets the lower tract was a major site for protein digestion. In trial 2, a basal, corn-based diet and three diets with soybean meal as the primary source of protein were formulated to contain approximately 5%, 9.5%, 14% and 16.5% crude protein as fed. True total tract digestion of nitrogen was 95.3%. True digestibility of feed (SBM) nitrogen in the small intestine over the range of linearity was 72.2%, while true digestibility of nitrogen reaching the large intestine was 89.8%. These data indicate that the protein in soybean meal was almost completely digested in the equine digestive tract. Further, while results from this trial indicate there may be an upper limit to the quantity of SBM nitrogen digested in the small intestine from a meal, approximately 75% of the digestible SBM protein was digested prececally when nitrogen intake was less than approximately 125 mg/kg body weight/feeding.

Farley, Eleanor Baker

1995-01-01T23:59:59.000Z

279

Optimization of running strategies based on anaerobic energy and ...  

E-Print Network (OSTI)

Aug 13, 2013 ... We extend this analysis, based on the equation of motion and aerobic energy, to include a balance of anaerobic energy (or accumulated ...

280

Biogeochemistry of Isoprenoid Production and Anaerobic Hydrocarbon Biodgeradation.  

E-Print Network (OSTI)

??This dissertation is an exploration of microbial isoprenoid production and destruction by anaerobic hydrocarbon biodegradation. Isoprenoids are methyl-branched hydrocarbons, and include biomarkers from all three… (more)

Dawson, Katherine

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Xylose anaerobic conversion by open-mixed cultures  

Science Conference Proceedings (OSTI)

methane-rich biogas production. An alternative anaerobic process could aim for the production of intermediates in the methanogenic process from complex ...

282

Effect of organic loading rate on bio-hydrogen production from sweet sorghum syrup by anaerobic mixed cultures in anaerobic sequencing batch reactor  

Science Conference Proceedings (OSTI)

This present study reported the effect of 4 organic loading rates (OLR) varied from 25-40 g hexose/L-d on bio-hydrogen production from sweet sorghum syrup by anaerobic mixed cultures in anaerobic sequencing batch reactor. The optimum OLR was found to ... Keywords: anaerobic mixed cultures, anaerobic sequencing batch reactor, organic loading rate, sweet sorghum syrup

Piyawadee Saraphirom; Alissara Reungsang

2011-02-01T23:59:59.000Z

283

Anaerobic bioprocessing of low rank coals  

SciTech Connect

The overall goal of this project is to find biological methods to remove carboxylic functionalities from low rank coals under ambient conditions and to assess the properties of these modified coals towards coal liquefaction. The main objectives for this quarter were: (1) enrichment of anaerobic microbial consortia in a coal fed chemostat, (2) characterization of biocoal products and examination of liquefaction potential, (3) isolation of decarboxylating organisms and evaluation of the isolated organisms for decarboxylation. The project began on September 12, 1990. 3 figs., 7 tabs.

Jain, M.K.; Narayan, R.; Han, O.

1991-01-01T23:59:59.000Z

284

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY ARNOLD SCHWARZENEGGER, Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network (OSTI)

,830,132.00 90.0% Awardee 19 Northstate Rendering Co Inc. Anaerobic Digestion of Rendering Waste To M Fuel ake Ventures, LLC r Cold Canyon Landfill Anaerobic Digestion Biorefinery $3,510,000.00 $0.00 65.3% Did Not Pass Manzana Anaerobic Digester Facility $3,150,000.00 $0.00 61.9% Did Not Pass 10 Biodiesel Industries, Inc

285

Multiple Syntrophic Interactions in a Terephthalate-Degrading Methanogenic Consortium  

E-Print Network (OSTI)

lipids on thermophilic anaerobic-digestion and reduction ofrecently isolated from anaerobic digestion processes (Imachilipids on thermophilic anaerobic-digestion and reduction of

Lykidis, Athanasios

2012-01-01T23:59:59.000Z

286

ENERGY ANALYSIS PROGRAM. CHAPTER FROM THE ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network (OSTI)

Marine Biomass System: Anaerobic Digestion and Production ofMarine Biomass System: Anaerobic Digestion and Production ofS. Ghosh, "The Anaerobic Digestion of Macrocystic pyrifera

Various, Various,

2011-01-01T23:59:59.000Z

287

PROJECTS FROM FEDERAL REGION IX DEPARTMENT OF ENERGY APPROPRIATE ENERGY TECHNOLOGY PROGRAM PART II  

E-Print Network (OSTI)

at the pond bottom via anaerobic digestion percolates to thewas to involve the anaerobic digestion of hog wastes forThird, the anaerobic and aerobic digestion processes result

Case, C.W.

2012-01-01T23:59:59.000Z

288

New York looks to the future of waste (10 March 2006) New York City has been investigating ways to manage its waste more sustainably in years  

E-Print Network (OSTI)

and anaerobic digestion, hydrolysis, chemical processing and mechanical processing for fibre recovery processes such as gasification and anaerobic digestion. "Technical findings show that anaerobic digestion

Columbia University

289

The Epidemiology of Schistosomiasis Reinfection and Reemergence in Sichuan, China: Implications for Surveillance and Intervention  

E-Print Network (OSTI)

Effect of aerobic and anaerobic digestion on the viabilityof Salmonella during anaerobic digestion of sewage sludge. JDR (2004) Two-stage anaerobic digestion process for complete

Carlton, Elizabeth Jean

2010-01-01T23:59:59.000Z

290

BEST Winery Guidebook: Benchmarking and Energy and Water Savings Tool for the Wine Industry  

E-Print Network (OSTI)

Water Treatment – Anaerobic Digestion. Generally, winerydeveloped that allow anaerobic digestion of winery wastes.installed the first anaerobic digestion system in 1997, and

Galitsky, Christina; Worrell, Ernst; Radspieler, Anthony; Healy, Patrick; Zechiel, Susanne

2005-01-01T23:59:59.000Z

291

Following electron flow: From a Gram-positive community to mechanisms of electron transfer  

E-Print Network (OSTI)

temperatures in anaerobic digestion and demonstrated aremoval in the batch anaerobic digestion process of cattleNew perspectives in anaerobic digestion. Water Sci Technol

Wrighton, Kelly Catherine

2010-01-01T23:59:59.000Z

292

Distributed Energy Systems in California's Future: A Preliminary Report Volume 2  

E-Print Network (OSTI)

Shredding, Etc. Anaerobic Digestion (Orga. 'lics) Backup forof Operation Anaerobic Digestion Pyrolysis 4 Hydrogenation3to methane by anaerobic digestion, two problems would be

Balderston, F.

2010-01-01T23:59:59.000Z

293

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network (OSTI)

biogas/anaerobic_digestion/casestudy.pdf  Aycrigg, M.  (of biogas from  the anaerobic digestion of animal waste.  production through anaerobic digestion, or oil  extraction 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

294

Direct measurements improve estimates of dairy greenhouse-gas emissions  

E-Print Network (OSTI)

VOLUME 63 , NUMBER 2 Anaerobic digestion systems could berates (USDA 2004). Anaerobic digestion systems (cov- eredtreatment stand- point, anaerobic digestion systems could be

Mitloehner, Frank M; Sun, Huawei; Karlik, John F

2009-01-01T23:59:59.000Z

295

Weighing the Costs and Benefits of Renewables Portfolio Standards: A Comparative Analysis of State-Level Policy Impact Projections  

E-Print Network (OSTI)

hydro fuel cells, anaerobic digestion, and MSW incineration.Power Landfill Gas Anaerobic Digestion Biomass Gasificationlandfill gas, and anaerobic digestion. c - Study uses NEMS.

Chen, Cliff; Wiser, Ryan; Bolinger, Mark

2007-01-01T23:59:59.000Z

296

Developing Information on Energy Savings and Associated Costs and Benefits of Energy Efficient Emerging Technologies Applicable in California  

E-Print Network (OSTI)

and potential of the anaerobic digestion of waste-activatedLettinga, G. (1995). Anaerobic-Digestion and Waste-Waterbacteria and this anaerobic digestion process has been

Xu, Tengfang

2011-01-01T23:59:59.000Z

297

Sustainable use of California biomass resources can help meet state and national bioenergy targets  

E-Print Network (OSTI)

methane derived from anaerobic digestion of biomass. † TWh =is often considered for anaerobic digestion, ethanol fermen-as a feedstock for anaerobic digestion to produce biogas (

Jenkins, Bryan M; Williams, Robert B; Gildart, Martha C; Kaffka, Stephen R.; Hartsough, Bruce; Dempster, Peter G

2009-01-01T23:59:59.000Z

298

Transforming trash: reuse as a waste management and climate change mitigation strategy  

E-Print Network (OSTI)

Elsevier. Dowds, J. Anaerobic Digestion: A Farm Methaneto the adoption of anaerobic digestion on US livestock2006) “Strategies for the anaerobic digestion of the organic

Vergara, Sintana Eugenia

2011-01-01T23:59:59.000Z

299

ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network (OSTI)

Marine Biomass System: Anaerobic Digestion and Production ofS. Ghosh, "The Anaerobic Digestion of Macrocystic plelferaMarine Biomass System: Anaerobic Digestion and Production of

Cairns, E.L.

2011-01-01T23:59:59.000Z

300

Methane Digesters and Biogas Recovery - Masking the Environmental Consequences of Industrial Concentrated Livestock Production  

E-Print Network (OSTI)

Methane Digesters and Biogas Recovery-Masking theII. METHANE DIGESTERS AND BIOGAs RECOVERY- IN THE2011] METHANE DIGESTERS AND BIOGAS RECOVERY methane, and 64%

Di Camillo, Nicole G.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Nuclear Regulatory Commission Information Digest, 1991 edition  

Science Conference Proceedings (OSTI)

The Nuclear Regulatory Commission Information Digest provides a summary of information about the US Nuclear Regulatory Commission (NRC), NRC's regulatory responsibilities, and the areas NRC licenses. This digest is a compilation of NRC-related data and is designed to provide a quick reference to major facts about the agency and the industry it regulates. In general, the data cover 1975 through 1990, with exceptions noted. For operating US commercial nuclear power reactors, information on generating capacity and average capacity factor is obtained from Monthly Operating Reports submitted to the NRC directly by the licensee. This information is reviewed for consistency only. No independent validation and/or verification is performed by the NRC. For detailed and complete information about tables and figures, refer to the source publications. This digest is published annually for the general use of the NRC staff and is available to the public. 30 figs., 12 tabs.

Olive, K L

1991-03-01T23:59:59.000Z

302

Co-digestion of cattle manure with food waste and sludge to increase biogas production  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Small increase in methane production was observed applying sonication pretreatment. Black-Right-Pointing-Pointer Biogas productions between 720 and 1100 mL/Lreactor day were achieved. Black-Right-Pointing-Pointer Volatile solids removal efficiencies ranged between 53% and 60%. Black-Right-Pointing-Pointer Lower methane yields were obtained when operating under thermophilic conditions. Black-Right-Pointing-Pointer Optimum OLR in lab-scale CSTR was 1.2-1.3 g VS/L day (HRT: 20 days). - Abstract: Anaerobic co-digestion strategies are needed to enhance biogas production, especially when treating certain residues such as cattle/pig manure. This paper presents a study of co-digestion of cattle manure with food waste and sewage sludge. With the aim of maximising biogas yields, a series of experiments were carried out under mesophilic and thermophilic conditions using continuously stirred-tank reactors, operating at different hydraulic residence times. Pretreatment with ultrasound was also applied to compare the results with those obtained with non-pretreated waste. Specific methane production decreases when increasing the OLR and decreasing HRT. The maximum value obtained was 603 LCH{sub 4}/kg VS{sub feed} for the co-digestion of a mixture of 70% manure, 20% food waste and 10% sewage sludge (total solid concentration around 4%) at 36 Degree-Sign C, for an OLR of 1.2 g VS/L day. Increasing the OLR to 1.5 g VS/L day led to a decrease of around 20-28% in SMP. Lower methane yields were obtained when operating at 55 Degree-Sign C. The increase in methane production when applying ultrasound to the feed mixtures does not compensate for the energy spent in this pretreatment.

Maranon, E., E-mail: emara@uniovi.es [Department of Chemical Engineering and Environmental Technology, University Institute of Technology of Asturias, Campus of Gijon, University of Oviedo, 33203 Gijon (Spain); Castrillon, L.; Quiroga, G.; Fernandez-Nava, Y. [Department of Chemical Engineering and Environmental Technology, University Institute of Technology of Asturias, Campus of Gijon, University of Oviedo, 33203 Gijon (Spain); Gomez, L.; Garcia, M.M. [Zero Emissions Technology, 41018 Seville (Spain)

2012-10-15T23:59:59.000Z

303

Pulping lignocellulose in continuous pressurized batch digesters  

Science Conference Proceedings (OSTI)

A batch process to produce kraft pulp is described, in which a combination of black and white liquor is used for cooking of wood chips. In the process, the steam consumption to produce 357 tons/day pulp at 50% yield was approximately 1600 lb/ton pulp, compared with 4000 lb/ton for a batch digester of conventional type.

Green, F.B.

1980-12-02T23:59:59.000Z

304

Waste-to-Energy Biomass Digester with Decreased Water Consumption  

Waste-to-Energy Biomass Digester with Decreased Water Consumption Contact Information: Jeremy Nelson Phone: 970.491.7100 Email: ...

305

Waste-to-Energy Biomass Digester with Decreased Water ...  

Waste-to-Energy Biomass Digester with Decreased Water Consumption Contact Information: Jeremy Nelson Phone: 970.491.7100 Email: ...

306

SGP Central Facility  

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

Central Facility Central Facility SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Central Facility The ARM Climate Research Facility deploys specialized remote sensing instruments in a fixed location at the site to gather atmospheric data of unprecedented quality, consistency, and completeness. More than 30 instrument clusters have been placed around the site; the central facility; and the boundary, intermediate, and extended facilities. The locations for the instruments were chosen so that the measurements reflect conditions

307

ARM - Facility News Article  

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

31, 2004 Facility News ARM Climate Research Facility Achieves User Milestone Three Months Ahead of Schedule Bookmark and Share Summary of the ARM Climate Research Facility User...

308

ARM - Facility News Article  

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

January 15, 2008 Facility News Future of User Facility Discussed at Fall Workshop As a national user facility, ARM is accessible to scientists around the globe for...

309

ARM - SGP Central Facility  

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

Central Facility Central Facility SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Central Facility The ARM Climate Research Facility deploys specialized remote sensing instruments in a fixed location at the site to gather atmospheric data of unprecedented quality, consistency, and completeness. More than 30 instrument clusters have been placed around the site; the central facility; and the boundary, intermediate, and extended facilities. The locations for the instruments were chosen so that the measurements reflect conditions

310

Microbiological characterization and specific methanogenic activity of anaerobe sludges used in urban solid waste treatment  

SciTech Connect

This study presents the microbiological characterization of the anaerobic sludge used in a two-stage anaerobic reactor for the treatment of organic fraction of urban solid waste (OFUSW). This treatment is one alternative for reducing solid waste in landfills at the same time producing a biogas (CH{sub 4} and CO{sub 2}) and an effluent that can be used as biofertilizer. The system was inoculated with sludge from a wastewater treatment plant (WWTP) (Rio Frio Plant in Bucaramanga-Colombia) and a methanogenic anaerobic digester for the treatment of pig manure (Mesa de los Santos in Santander). Bacterial populations were evaluated by counting groups related to oxygen sensitivity, while metabolic groups were determined by most probable number (MPN) technique. Specific methanogenic activity (SMA) for acetate, formate, methanol and ethanol substrates was also determined. In the acidogenic reactor (R1), volatile fatty acids (VFA) reached values of 25,000 mg L{sup -1} and a concentration of CO{sub 2} of 90%. In this reactor, the fermentative population was predominant (10{sup 5}-10{sup 6} MPN mL{sup -1}). The acetogenic population was (10{sup 5} MPN mL{sup -1}) and the sulphate-reducing population was (10{sup 4}-10{sup 5} MPN mL{sup -1}). In the methanogenic reactor (R2), levels of CH{sub 4} (70%) were higher than CO{sub 2} (25%), whereas the VFA values were lower than 4000 mg L{sup -1}. Substrate competition between sulphate-reducing (10{sup 4}-10{sup 5} MPN mL{sup -1}) and methanogenic bacteria (10{sup 5} MPN mL{sup -1}) was not detected. From the SMA results obtained, acetoclastic (2.39 g COD-CH{sub 4} g{sup -1} VSS{sup -1} day{sup -1}) and hydrogenophilic (0.94 g COD-CH{sub 4} g{sup -1} VSS{sup -1} day{sup -1}) transformations as possible metabolic pathways used by methanogenic bacteria is suggested from the SMA results obtained. Methanotrix sp., Methanosarcina sp., Methanoccocus sp. and Methanobacterium sp. were identified.

Sandoval Lozano, Claudia Johanna [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9A Carrera 27, Aptdo Aereo 678, Bucaramanga (Colombia)], E-mail: ceiam@uis.edu.co; Vergara Mendoza, Marisol; Carreno de Arango, Mariela; Castillo Monroy, Edgar Fernando [Centro de Estudios e Investigaciones Ambientales, Universidad Industrial de Santander, Calle 9A Carrera 27, Aptdo Aereo 678, Bucaramanga (Colombia)

2009-02-15T23:59:59.000Z

311

Ammonia Emissions from Anaerobic Swine Lagoons: Model Development  

Science Conference Proceedings (OSTI)

Concentrated animal production may represent a significant source for ammonia emissions to the environment. Most concentrated animal production systems use anaerobic or liquid/slurry systems for wasteholding; thus, it is desirable to be able to ...

A. De Visscher; L. A. Harper; P. W. Westerman; Z. Liang; J. Arogo; R. R. Sharpe; O. Van Cleemput

2002-04-01T23:59:59.000Z

312

Biogas production from broiler manure, wastewater treatment plant sludge, and greenhouse waste by anaerobic co-digestion  

Science Conference Proceedings (OSTI)

Inappropriate management of organic wastes can cause serious damage to the environment by polluting water and air

2013-01-01T23:59:59.000Z

313

Research Facilities and Programs  

Science Conference Proceedings (OSTI)

WEB RESOURCES: Magnesium Research Facilities and Programs ... to universities, corporations, and other facilities involved in magnesium research, 0, 1025 ...

314

Californium Neutron Irradiation Facility  

Science Conference Proceedings (OSTI)

Californium Neutron Irradiation Facility. Summary: ... Cf irradiation facility (Photograph by: Neutron Physics Group). Lead Organizational Unit: pml. Staff: ...

2013-07-23T23:59:59.000Z

315

Mobile Solar Tracker Facility  

Science Conference Proceedings (OSTI)

Mobile Solar Tracker Facility. ... NIST's mobile solar tracking facility is used to characterize the electrical performance of photovoltaic panels. ...

2011-11-15T23:59:59.000Z

316

Facility Representatives  

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

DOE-STD-1063-2006 April 2006 Superseding DOE-STD-1063-2000 March 2000 DOE STANDARD FACILITY REPRESENTATIVES U.S. Department of Energy AREA MGMT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NOT MEASUREMENT SENSITIVE DOE-STD-1063-2006 ii Available on the Department of Energy Technical Standards Program web site at http://www.eh.doe.gov/techstds/ DOE-STD-1063-2006 iii FOREWORD 1. This Department of Energy standard is approved for use by all DOE Components. 2. The revision to this DOE standard was developed by a working group consisting of headquarters and field participants. Beneficial comments (recommendations, additions, deletions) and any pertinent data that may improve this document should

317

Facility Type!  

Office of Legacy Management (LM)

ITY: ITY: --&L~ ----------- srct-r~ -----------~------~------- if yee, date contacted ------------- cl Facility Type! i I 0 Theoretical Studies Cl Sample 84 Analysis ] Production 1 Diepasal/Storage 'YPE OF CONTRACT .--------------- 1 Prime J Subcontract&- 1 Purchase Order rl i '1 ! Other information (i.e., ---------~---~--~-------- :ontrait/Pirchaee Order # , I C -qXlJ- --~-------~~-------~~~~~~ I I ~~~---~~~~~~~T~~~ FONTRACTING PERIODi IWNERSHIP: ,I 1 AECIMED AECMED GOVT GOUT &NTtiAC+OR GUN-I OWNED ----- LEEE!? M!s LE!Ps2 -LdJG?- ---L .ANDS ILJILDINGS X2UIPilENT IRE OR RAW HA-I-L :INAL PRODUCT IASTE Z. RESIDUE I I kility l pt I ,-- 7- ,+- &!d,, ' IN&"E~:EW AT SITE -' ---------------- , . Control 0 AEC/tlED managed operations

318

Facility Representatives  

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

063-2011 063-2011 February 2011 Superseding DOE-STD-1063-2006 April 2006 DOE STANDARD FACILITY REPRESENTATIVES U.S. Department of Energy AREA MGMT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NOT MEASUREMENT SENSITIVE DOE-STD-1063-2011 ii Available on the Department of Energy Technical Standards Program Web site at http://www.hss.doe.gov/nuclearsafety/ns/techstds/ DOE-STD-1063-2011 iii FOREWORD 1. This Department of Energy (DOE) standard is approved for use by all DOE/National Nuclear Security Administration (NNSA) Components. 2. The revision to this DOE standard was developed by a working group consisting of headquarters and field participants. Beneficial comments (recommendations,

319

Research Facility,  

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

Collecting and Delivering the Data Collecting and Delivering the Data As a general condition for use of the ARM Climate Research Facility, users are required to include their data in the ARM Data Archive. All data acquired must be of sufficient quality to be useful and must be documented such that users will be able to clearly understand the meaning and organization of the data. Final, quality-assured data sets are stored in the Data Archive and are freely accessible to the general scientific community. Preliminary data may be shared among field campaign participants during and shortly following the campaign. To facilitate sharing of preliminary data, the ARM Data Archive establishes restricted access capability, limited to participants and data managers.

320

Facility automation for retail facilities  

Science Conference Proceedings (OSTI)

This article will focus on retail chain stores with areas of 22,000 to 75,000 sq ft, but much of the article will apply to all retail stores independent of size. Typically, a store is serviced by 5 to 15 rooftop HVAC units with a total cooling capacity of 50 to 150 tons, depending on the floor area and geographic location. The interior lighting represents a load of 80 to 300 KW with three lighting levels--retail, stocking, and security or night. Most stores are located in strip centers, and therefore, the parking lot lighting is provided by the landlord, but each store does control and service its own sign lighting. Generally, the total load controlled by an FAS represents 130 to 450 KW with corresponding annual energy costs ranging from $65,000 to $200,000 (natural gas and electricity), depending on the size of the store and the local unit costs of energy. Historical utility data, electrical and mechanical drawings, site surveys, significant analyses of data, and most importantly, discussions with corporate facilities management personnel and store operations personnel provide the source for the development theory and sequence of operation of the design of the facility automation systems for retail stores. The three main goals of an FAS are: reduce utility operating costs, maintain comfort levels during occupied hours, reduce HVAC maintenance costs.

Ameduri, G. (Roth Bros., Inc., Youngstown, OH (United States). Facilities Automation Division)

1994-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Industry  

E-Print Network (OSTI)

Cornland, 2001), and anaerobic digestion of residues to DoBiogas, Natural Anaerobic gas digestion, Gasification Do Not

Bernstein, Lenny

2008-01-01T23:59:59.000Z

322

Investigating fatty acid biosynthesis within the algal chloroplast using Chlamydomonas reinhardtii as a model  

E-Print Network (OSTI)

WJ, Gotaas HB (1957) Anaerobic digestion of algae. Appliedproduce methane via anaerobic digestion [45] and to recycle

Blatti, Jillian L.

2012-01-01T23:59:59.000Z

323

Creating Markets for Green Biofuels: Measuring and improving environmental performance  

E-Print Network (OSTI)

two four-million-gallon anaerobic digestion tanks to http://operation can use an anaerobic digestion system with or

Turner, Brian T.; Plevin, Richard J.; O'Hare, Michael; Farrell, Alexander E.

2007-01-01T23:59:59.000Z

324

The human carbon budget: an estimate of the spatial distribution of metabolic carbon consumption and release in the United States  

E-Print Network (OSTI)

we estimate that anaerobic digestion of human waste producesper yr associated with anaerobic digestion. This estimate is

West, Tristram O.; Marland, Gregg; Singh, Nagendra; Bhaduri, Budhendra L.; Roddy, Adam B.

2009-01-01T23:59:59.000Z

325

Energy recovery from agroindustrial wastes with prevalently solute pollutants using fixed-bed anaerobic reactors  

Science Conference Proceedings (OSTI)

A process for anaerobic digestion of agroindustrial wastes containing mainly soluble pollutants was developed utilizing fixed-bed reactors. A pilot plant at a sugar refinery with two reactors in parallel, respectively of 10 and 50 m/sup 3/ operating volume, has functioned successfully in treating wastes produced in regenerating ion-exchange columns used to purify the sugar juices. With an hydraulic retention time (HRT) of less than one day, a maximum gas production of 11.5 volumes per operating volume of reactor per day was obtained together with a reduction of up to 80% of the biological oxygen demand for five days (BOD5), and volatile solids and up to 70% of the chemical oxygen demand (COD). The gas contained from 70 to 75% methane. On the basis of these results, a full-scale industrial plant was built which produced up to 7500 m/sup 3/ a day of biogas. The process has been found suitable for a large number of industrial wastes, especially when plants are seasonally operated.

Sanna, P.; Camilli, M.

1983-03-01T23:59:59.000Z

326

Harrisburg Facility Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Harrisburg Facility Biomass Facility Harrisburg Facility Biomass Facility Jump to: navigation, search Name Harrisburg Facility Biomass Facility Facility Harrisburg Facility Sector Biomass Facility Type Landfill Gas Location Dauphin County, Pennsylvania Coordinates 40.2734277°, -76.7336521° 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":40.2734277,"lon":-76.7336521,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

327

Brookhaven Facility Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Brookhaven Facility Biomass Facility Brookhaven Facility Biomass Facility Jump to: navigation, search Name Brookhaven Facility Biomass Facility Facility Brookhaven Facility Sector Biomass Facility Type Landfill Gas Location Suffolk County, New York Coordinates 40.9848784°, -72.6151169° 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":40.9848784,"lon":-72.6151169,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

328

EA-1624: Final Environmental Assessment | Department of Energy  

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

624: Final Environmental Assessment 624: Final Environmental Assessment EA-1624: Final Environmental Assessment Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities This environmental assessment evaluates the potential impacts from the construction and operation of a centralized anaerobic digester facility to process municipal wastewater sludge into energy and to utilize landfill gas (LFG) to produce up to 3.18 Megawatts (MW) of renewable electric power, to be located in Auburn, New York. DOE/EA-1624: Environmental Assessment for Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities (December 2008) More Documents & Publications EA-1624: Finding of No Significant Impact EA-1779: Draft Environmental Assessment EA-1779: Final Environmental Assessment

329

International Facility Management Association Strategic Facility  

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

Facility Management Association Facility Management Association Strategic Facility Planning: A WhIte PAPer Strategic Facility Planning: A White Paper on Strategic Facility Planning © 2009 | International Facility Management Association For additional information, contact: 1 e. Greenway Plaza, Suite 1100 houston, tX 77046-0104 USA P: + 1-713-623-4362 F: + 1-713-623-6124 www.ifma.org taBle OF cOntentS PreFace ......................................................... 2 executive Summary .................................... 3 Overview ....................................................... 4 DeFinitiOn OF Strategic Facility Planning within the Overall cOntext OF Facility Planning ................. 5 SPecializeD analySeS ................................ 9 OrganizatiOnal aPPrOacheS tO SFP ... 10 the SFP PrOceSS .......................................

330

Office of Nuclear Facility Basis & Facility Design  

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

Office of Nuclear Safety Basis & Facility Design(HS-31) Reports to the Office of Nuclear Safety About Us The Office of Nuclear Safety Basis & Facility Design establishes safety...

331

Cassava Stillage Treatment by Thermophilic Anaerobic Continuously Stirred Tank Reactor (CSTR)  

Science Conference Proceedings (OSTI)

This paper assesses the performance of a thermophilic anaerobic Continuously Stirred Tank Reactor (CSTR) in the treatment of cassava stillage under various organic loading rates (OLRs) without suspended solids (SS) separation. The reactor was seeded with mesophilic anaerobic granular sludge

Gang Luo; Li Xie; Zhonghai Zou; Qi Zhou

2010-01-01T23:59:59.000Z

332

Ecovation Inc formerly AnAerobics | Open Energy Information  

Open Energy Info (EERE)

Ecovation Inc formerly AnAerobics Ecovation Inc formerly AnAerobics Jump to: navigation, search Name Ecovation Inc (formerly AnAerobics) Place Victor, New York Zip 14564 Product The company build and operate organic waste management systems. Coordinates 38.15924°, -81.034233° 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":38.15924,"lon":-81.034233,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

333

ARM - Facility News Article  

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

than any other quarter on record-961 The U.S. Department of Energy requires national user facilities to report facility use by total visitor days and facility to track actual...

334

Analysis, anaerobic treatment and ozonation of wool scouring wastewater  

SciTech Connect

Wool scouring effluents (WSE) were analyzed by high-resolution gas chromatography-mass spectrometry (HRGC-MS), and then exposed to anaerobic biological treatment using laboratory scale fixed-bed filters. This resulted in a nearly 50% reduction in chemical oxygen demand (COD). Ozonation of the effluent from the biological step led to an even further decrease in total organic carbon (TOC). The fatty acid content of the WSE was affected by both biological treatment and ozonation. Finally, steroids in the WSE underwent reduction reactions when exposed to the anaerobic biological treatment.

Monteverdi, A.; Rindone, B.; Sorlini, C. (Univ. di Milano (Italy)); Andreoni, V. (Univ. di Torino (Italy)); Rozzi, A. (Inst. di Ingegneria Sanitaria del Politechnico di Milano (Italy))

1992-01-01T23:59:59.000Z

335

Engineered microorganisms capable of producing target compounds under anaerobic conditions  

DOE Patents (OSTI)

The present invention is generally provides recombinant microorganisms comprising engineered metabolic pathways capable of producing C3-C5 alcohols under aerobic and anaerobic conditions. The invention further provides ketol-acid reductoisomerase enzymes which have been mutated or modified to increase their NADH-dependent activity or to switch the cofactor preference from NADPH to NADH and are expressed in the modified microorganisms. In addition, the invention provides isobutyraldehyde dehydrogenase enzymes expressed in modified microorganisms. Also provided are methods of producing beneficial metabolites under aerobic and anaerobic conditions by contacting a suitable substrate with the modified microorganisms of the present invention.

Buelter, Thomas (Denver, CO); Meinhold, Peter (Denver, CO); Feldman, Reid M. Renny (San Francisco, CA); Hawkins, Andrew C. (Parker, CO); Urano, Jun (Irvine, CA); Bastian, Sabine (Pasadena, CA); Arnold, Frances (La Canada, CA)

2012-01-17T23:59:59.000Z

336

ARM - Facility News Article  

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

Facility News Data Collection from Mobile Facility on Gan Island Suspended Local weather balloon launch volunteers pose with the AMF team on Gan Island after completing their...

337

from Isotope Production Facility  

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

Cancer-fighting treatment gets boost from Isotope Production Facility April 13, 2012 Isotope Production Facility produces cancer-fighting actinium - 2 - 2:32 Isotope cancer...

338

ARM - Facility News Article  

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

approximately 22,500 square kilometers, or the approximate area of a modern climate model grid cell. Centered around the SGP Central Facility, these extended facilities are...

339

Chemistry Dept. Research Facilities  

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

Research Facilities As a research organization within a National Laboratory, the Chemistry Department operates research facilities that are available to other researchers as...

340

Facility Safeguardability Assessment Report  

National Nuclear Security Administration (NNSA)

of the Facility Safeguardability Analysis (FSA) Process RA Bari SJ Johnson J Hockert R Wigeland EF Wonder MD Zentner August 2012 PNNL- 21698 Overview of the Facility...

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Facility Safeguardability Assessment Report  

National Nuclear Security Administration (NNSA)

facilities or research facilities that involve previously unused processes or technologies, comparison with previously required safeguard design features may not be...

342

Fuel Fabrication Facility  

National Nuclear Security Administration (NNSA)

Construction of the Mixed Oxide Fuel Fabrication Facility Construction of the Mixed Oxide Fuel Fabrication Facility November 2005 May 2007 June 2008 May 2012...

343

User Facility Agreement Form  

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

5. Which Argonne user facility will be hosting you? * Advanced Leadership Computing Facility (ALCF) Advanced Photon Source (APS) Argonne Tandem Linear...

344

NREL: Biomass Research - Facilities  

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

Facilities At NREL's state-of-the-art biomass research facilities, researchers design and optimize processes to convert renewable biomass feedstocks into transportation fuels and...

345

ARM - Facility News Article  

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

May 15, 2008 Facility News National User Facility Organization Meets to Discuss Progress and Ideas In late April, the ARM Technical Director attended an annual meeting of the...

346

Oak Ridge Reservation Facilities  

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

processed for shipment to the Nevada Test Site or other appropriate disposal facility. Molten Salt Reactor Experiment Facility The Molten Salt Reactor Experiment (MSRE) operated...

347

ARM - Facility News Article  

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

January 15, 2008 Facility News ARM Mobile Facility Completes Field Campaign in Germany Researchers will study severe precipitation events that occurred in August and October...

348

Facility Representative Program: 2003 Facility Representative Workshop  

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

3 Facility Representative Workshop 3 Facility Representative Workshop May 13 - 15, 2003 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Day 1: Tuesday, May 13, 2003 Theme: Program Successes and Challenges 8:00 a.m. John Evans, Facility Representative Program Manager 8:15 a.m. Welcome Kathleen Carlson Manager, Nevada Site Office 8:30 a.m. Keynote Address Savannah River Site and Facility Reps - A Shared History and Common Future Jeffrey M. Allison Manager, Savannah River Operations Office 9:00 a.m. Videotaped Remarks from the Deputy Secretary Kyle E. McSlarrow, Deputy Secretary of Energy 9:10 a.m. Facility Representative of the Year Presentation Mark B. Whitaker, Jr., Departmental Representative to the Defense Nuclear Facilities Safety Board

349

NREL: Research Facilities - Test and User Facilities  

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

Test and User Facilities Test and User Facilities NREL has test and user facilities available to industry and other organizations for researching, developing, and evaluating renewable energy and energy efficiency technologies. Here you'll find an alphabetical listing and brief descriptions of NREL's test and user facilities. A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z A Advanced Research Turbines At our wind testing facilities, we have turbines available to test new control schemes and equipment for reducing loads on wind turbine components. Learn more about the Advanced Research Turbines on our Wind Research website. Back to Top D Distributed Energy Resources Test Facility This facility was designed to assist the distributed power industry in the

350

Facility Representative Program: 2000 Facility Representative Workshop  

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

0 Facility Representative Workshop 0 Facility Representative Workshop May 16-18, 2000 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Tuesday, May 16, 2000 Theme for Day 1: Sustaining the Success of the Facility Representative Program 8:00 a.m. - Opening Remarks - Joe Arango, Facility Representative Program Manager 8:05 a.m. - Welcome - Kenneth Powers, Deputy Manager Nevada Operations Office 8:15 a.m. - Deputy Secretary Remarks - T. J. Glauthier, Deputy Secretary of Energy 8:30 a.m. - Keynote Address - Jerry Lyle, Assistant Manager for Environmental Management, Idaho Operations Office 9:00 a.m. - Facility Representative of the Year Presentation - Mark B. Whitaker, Departmental Representative 9:30 a.m. - Break 9:50 a.m. - Program Results and Goals - Joe Arango, Facility Representative Program Manager

351

Anaerobic Biotransformation and Mobility of Pu and Pu-EDTA  

Science Conference Proceedings (OSTI)

The complexation of radionuclides (e.g., plutonium (Pu) and {sup 60}Co) by co-disposed ethylenediaminetetraacetate (EDTA) has enhanced their transport in sediments at DOE sites. Pu(IV)-EDTA is not stable in the presence of relatively soluble Fe(III) compounds. Since most DOE sites have Fe(III) containing sediments, Pu(IV) is likely not the mobile form of Pu-EDTA. The only other Pu-EDTA complex stable in groundwater relevant to DOE sites would be Pu(III)-EDTA, which only forms under anaerobic conditions. Research is therefore needed to investigate the biotransformation of Pu and Pu-EDTA under anaerobic conditions and the anaerobic biodegradation of Pu-EDTA. The biotransformation of Pu and Pu-EDTA under various anaerobic regimes is poorly understood including the reduction kinetics of Pu(IV) to Pu(III) from soluble (Pu(IV)-EDTA) and insoluble Pu(IV), the redox conditions required for this reduction, the strength of the Pu(III)-EDTA, how the Pu(III)-EDTA competes with other dominant anoxic soluble metals (e.g., Fe(II)), and the oxidation kinetics of Pu(III)-EDTA. Finally, soluble Pu(III)-EDTA under anaerobic conditions would require anaerobic degradation of the EDTA to limit Pu(III) transport. Anaerobic EDTA degrading microorganisms have never been isolated. Recent results have shown that Shewanella oneidensis MR-1, a dissimilatory metal reducing bacterium, can reduce Pu(IV) to Pu(III). The Pu(IV) was provided as insoluble PuO2. The highest rate of Pu(IV) reduction was with the addition of AQDS, an electron shuttle. Of the total amount of Pu solubilized (i.e., soluble through a 0.36 nm filter), approximately 70% was Pu(III). The amount of soluble Pu was between 4.8 and 3.2 micromolar at day 1 and 6, respectively, indicating rapid reduction. The micromolar Pu is significant since the drinking water limit for Pu is 10{sup -12} M. On-going experiments are investigating the influence of EDTA on the rate of Pu reduction and the stability of the formed Pu(III). We have also begun to enrich and isolate bacteria capable of aerobic and anaerobic degradation of EDTA. Environmental samples (e.g., sludges, river sediments) were incubated aerobically and anaerobically with EDTA or NTA as the sole carbon and energy source. Aerobic enrichment with EDTA has not resulted in any cultures, but NTA has provided several isolates. Partial 16S rRNA gene sequence and sequence comparison identified four separate strains closely related to Microbacterium oxydans, Aminobacter sp., Achromobacter sp., Aminobacter sp., respectively. Anaerobic enrichments with either EDTA or NTA are still in progress since metabolism and growth is relatively slow. In addition to the biotransformation experiments, studies are underway to determine/validate complexation constants of Pu(III) with EDTA and the influence of competing ions on Pu(III)-EDTA complexes. These data are being obtained through solubility studies of PuPO{sub 4}(s) and Pu(OH){sub 3}(s) as a function of time, pH, and EDTA and competing ion concentrations. These results have begun to fill-in knowledge gaps of how anaerobic conditions will influence Pu and Pu-EDTA fate and transport to assess, model, and design approaches to stop Pu transport in groundwater at DOE sites.

Bolton, H., Jr.; Bailey, V.L.; Plymale, A.E.; Rai, D.; Xun, L.

2006-04-05T23:59:59.000Z

352

Guide to research facilities  

SciTech Connect

This Guide provides information on facilities at US Department of Energy (DOE) and other government laboratories that focus on research and development of energy efficiency and renewable energy technologies. These laboratories have opened these facilities to outside users within the scientific community to encourage cooperation between the laboratories and the private sector. The Guide features two types of facilities: designated user facilities and other research facilities. Designated user facilities are one-of-a-kind DOE facilities that are staffed by personnel with unparalleled expertise and that contain sophisticated equipment. Other research facilities are facilities at DOE and other government laboratories that provide sophisticated equipment, testing areas, or processes that may not be available at private facilities. Each facility listing includes the name and phone number of someone you can call for more information.

Not Available

1993-06-01T23:59:59.000Z

353

Utilisation of single added fatty acids by consortia of digester sludge in batch culture  

SciTech Connect

Inocula derived from an anaerobic digester were used to study (i) their potential for methane production and (ii) the utilisation rates of different short chain fatty acids (SCFAs) by the microbial community in defined media with mono-carbon sources (formic-, acetetic-, propionic-, butyric acid) in batch culture. It could be demonstrated that the microbial reactor population could be transferred successfully to the lab, and its ability to build up methane was present even with deteriorating biogas plant performance. Therefore, this reduction in performance of the biogas plant was not due to a decrease in abundance, but due to an inactivity of the microbial community. Generally, the physico-chemical properties of the biogas plant seemed to favour hydrogenotrophic methanogens, as seen by the high metabolisation rates of formate compared with all other carbon sources. In contrast, acetoclastic methanogenesis could be shown to play a minor role in the methane production of the investigated biogas plant, although the origin of up to 66% of methane is generally suggested to be generated through acetoclastic pathway.

Wagner, Andreas Otto, E-mail: Andreas.Wagner@uibk.ac.a [University of Innsbruck, Institute of Microbiology, Technikerstr. 25, A-6020 Innsbruck (Austria); Gstrauntaler, Gudrun [Abfallbeseitigungsverband Westtirol, Breite Mure, A-6426 Roppen (Austria); Illmer, Paul [University of Innsbruck, Institute of Microbiology, Technikerstr. 25, A-6020 Innsbruck (Austria)

2010-10-15T23:59:59.000Z

354

RECOMMENDATIONS FOR EFFECTIVE SEPTIC SYSTEM MANAGEMENT IN THE  

E-Print Network (OSTI)

anaerobic digestion and decomposition (breakdown and digestion by bacteria that function in the oxygen

Radcliffe, David

355

Key Science and Engineering Indicators: Digest 2012 | Data.gov  

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

Key Science and Engineering Indicators: Digest 2012 Key Science and Engineering Indicators: Digest 2012 BusinessUSA Data/Tools Apps Challenges Let's Talk BusinessUSA You are here Data.gov » Communities » BusinessUSA » Data Key Science and Engineering Indicators: Digest 2012 Dataset Summary Description This 2012 digest of key S&E indicators is an interactive tool that draws from the National Science Board's (NSB's) Science and Engineering Indicators report. The digest serves to draw attention to important trends and data points from across Indicators and to introduce readers to the data resources available in the report. Tags {science,engineering,indicators,statistics,nsf,nsb,srs,federal,government,education,labor,employment,workforce,research,development,industry,international,global,r&d,technology,patents,"research citations"}

356

Anaerobic fermentation of beef cattle manure. Final report  

DOE Green Energy (OSTI)

The research to convert livestock manure and crop residues into methane and a high protein feed ingredient by thermophilic anaerobic fermentation are summarized. The major biological and operational factors involved in methanogenesis were discussed, and a kinetic model that describes the fermentation process was presented. Substrate biodegradability, fermentation temperature, and influent substrate concentration were shown to have significant effects on CH/sub 4/ production rate. The kinetic model predicted methane production rates of existing pilot and full-scale fermentation systems to within 15%. The highest methane production rate achieved by the fermenter was 4.7 L CH/sub 4//L fermenter day. This is the highest rate reported in the literature and about 4 times higher than other pilot or full-scale systems fermenting livestock manures. Assessment of the energy requirements for anaerobic fermentation systems showed that the major energy requirement for a thermophilic system was for maintaining the fermenter temperature. The next major energy consumption was due to the mixing of the influent slurry and fermenter liquor. An approach to optimizing anaerobic fermenter designs by selecting design criteria that maximize the net energy production per unit cost was presented. Based on the results, we believe that the economics of anaerobic fermentation is sufficiently favorable for farm-scale demonstration of this technology.

Hashimoto, A.G.; Chen, Y.R.; Varel, V.H.

1981-01-01T23:59:59.000Z

357

Facilities/Staff Hydrogen  

Science Conference Proceedings (OSTI)

Thermophysical Properties of Hydrogen. FACILITIES and STAFF. The Thermophysical Properties Division is the Nation's ...

358

Facility Representative Program: 2001 Facility Representative Workshop  

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

1 Facility Representative Workshop 1 Facility Representative Workshop May 15 - 17, 2001 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Day 1: Tuesday, May 15, 2001 Theme: Program Successes and Challenges 8:00 a.m. - Logistics Announcements & Opening Remarks - Joe Arango, Facility Representative Program Manager 8:15 a.m. - Welcome - Debbie Monette, Assistant Manager for National Security, Nevada Operations Office 8:30 a.m. - Keynote Address - Ralph Erickson, National Nuclear Security Administration 9:00 a.m.- DOE Facility Representative of the Year Presentation - Mark B. Whitaker, Jr., Departmental Representative to the Defense Nuclear Facilities Safety Board 9:30 a.m. - Break 9:50 a.m. - Program Summary - Joe Arango 10:10 a.m. - Management Panel/Questions and Answers

359

Facility Representative Program: 2010 Facility Representative Workshop  

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

10 Facility Representative Workshop 10 Facility Representative Workshop May 12 - 13, 2010 Las Vegas, NV Facility Rep of the Year Award | Attendees | Summary Report Workshop Agenda and Presentations Day 1: Wednesday, May 12, 2010 8:00 a.m. Opening Remarks James Heffner, Facility Representative Program Manager Earl Hughes, Safety System Oversight Program Manager Office of Nuclear Safety Policy and Assistance Office of Health, Safety and Security 8:15 a.m. Welcome from the Nevada Site Office John Mallin, Deputy Assistant Manager for Site Operations Nevada Site Office 8:30 a.m. Workshop Keynote Address Todd Lapointe Chief of Nuclear Safety Central Technical Authority Staff 9:15 a.m. Facility Representative and Safety System Oversight Award Ceremony James Heffner, Facility Representative Program Manager

360

Facility Representative Program: 2007 Facility Representative Workshop  

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

7 Facility Representative Workshop 7 Facility Representative Workshop May 15 - 17, 2007 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Final Day 1: Tuesday, May 15, 2007 8:00 a.m. Opening Remarks Joanne Lorence, Facility Representative Program Manager 8:15 a.m. Welcome from the Nevada Site Office Gerald Talbot, Manager, Nevada Site Office 8:30 a.m. Videotaped Remarks from the Deputy Secretary The Honorable Clay Sell, Deputy Secretary of Energy 8:45 a.m. Keynote Address - Safety Oversight Perspective and Expectations Glenn Podonsky, Chief Health, Safety and Security Officer, Office of Health, Safety and Security 9:10 a.m. Facility Representative of the Year Presentation Mark B. Whitaker, Jr., Departmental Representative to the Defense Nuclear Facilities Safety Board,

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Facility Representative Program: 2008 Facility Representative...  

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

Sherman Chao, LSO Conduct of Operations Improvements at K Basins Dennis Humphreys, RL Molten Salt Reactor Experiment (MSRE) facility lessons learned Charlie Wright, ORO...

362

Facility Representative Program: 2005 Facility Representative...  

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

Sharing of Good Practices and Lessons Learned (4) Inadvertent Startup of Electric Centrifuge at the Weapon Evaluation Test Lab Joyce Arviso-Benally, SSO Facility Rep...

363

Facility Representative Program: 2012 Facility Representative...  

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

18, 2012 Las Vegas, NV Agenda | Presentations | SSO Annual Award | Pictures | Summary Report 2011 Facility Representative of the Year Award 2011 WINNER: Congratulations to Bradley...

364

Heat treatment of organics for increasing anaerobic biodegradability. Annual progress report, June 1, 1976-May 31, 1977. Civil engineering technical report No. 222  

DOE Green Energy (OSTI)

This report represents the results of the first year of study on the heat treatment of organics to increase its biodegradability by anaerobic bacteria for the microbial production of methane. The purpose of this study is to develop a means for increasing the yield and reducing the cost of methane, a useful energy source. The procedures being evaluated are heat treatment at temperatures up to 250/sup 0/C, under pH ranges of 1 to 13. Included in this report are results on: (1) lignocellulose digestion and acclimation to its products from heat treatment; (2) the fate of waste activated sludge and its cellular nitrogenous compounds; and (3) the biodegradability of model compounds likely to be formed during heat treatment.

Healy, J.B. Jr.; Owen, W.F.; Stuckey, D.C.; Young, L.Y.; McCarty, P.L.

1977-06-30T23:59:59.000Z

365

Browse wiki | Open Energy Information  

Open Energy Info (EERE)

http:www.in.govlegislativeiccodetitle13ar20ch10.5.html + IncentiveImplSector StateProvince + IncentiveName Biomass Anaerobic Digestion Facilities and Biomass...

366

Passive solar technology aids biogas digesters  

SciTech Connect

Farming communities throughout China rely on biogas generators as a primary source of light and heat, as well as using the sludge as a nitrogen-rich fertilizer. Now researchers at Beijing's Solar Energy Laboratory have improved efficiency by building a rectangular tank out of concrete slabs, with one slanted surface painted black and covered with glass. According to a report in New Scientist, this passive solar panel generates heat in the same way as a greenhouse, raising inside temperatures by 10{degree}C and increasing biogas production by 50%. Another advantage of the new tanks is easy access, since the tank's lid sites in wells of water which form a seal against oxygen. (Old biogas tanks were made of soil, sand and a little concrete, prone to developing severe cracks which would allow oxygen to enter thus slowing down anaerobic reaction). Explains Debora MacKenzie of New Scientist: with the new tank, the farmer can simply remove the lid and attack the contents with a spade. This means that the mixture can comprise more than 10% solids. Greater density allows smaller tanks. Rural families need one cubic meter of biogas daily for light and heat; instead of the former 8 cm biogas generator, the new tanks need only be 1 cm. The prediction is that the smaller size could make biogas more popular in China's crowded towns. The biogas department is headed by He Shao Qi, who is also investigating ways to reduce production costs for the tanks.

Not Available

1988-07-01T23:59:59.000Z

367

NREL: Photovoltaics Research - Facilities  

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

Facilities Facilities NREL's world-class research facilities provide the venue for innovative advances in photovoltaic technologies and applications. These facilities within the National Center for Photovoltaics (NCPV) serve both multi-use and dedicated-use functions. We encourage our research colleagues in industry, universities, and other laboratories to pursue opportunities in working with our staff in these facilities. Dedicated-Use Facilities Photo of a red-hot coil glowing inside a round machine. Research within these facilities focuses on targeted areas of interest that require specific tools, techniques, or unique capabilities. Our two main dedicated-use facilities are the following: Outdoor Test Facility (OTF) OTF researchers study and evaluate advanced or emerging PV technologies

368

Anaerobic Biotransformation and Mobility of Pu and Pu-EDTA  

Science Conference Proceedings (OSTI)

The complexation of radionuclides (e.g., plutonium (Pu) and {sup 60}Co) by codisposed ethylenediaminetetraacetate (EDTA) has enhanced their transport in sediments at DOE sites. Our previous NABIR research investigated the aerobic biodegradation and biogeochemistry of Pu(IV)-EDTA. Plutonium(IV) forms stable complexes with EDTA under aerobic conditions and an aerobic EDTA degrading bacterium can degrade EDTA in the presence of Pu and decrease Pu mobility. However, our recent studies indicate that while Pu(IV)-EDTA is stable in simple aqueous systems, it is not stable in the presence of relatively soluble Fe(III) compounds (i.e., Fe(OH){sub 3}(s)--2-line ferrihydrite). Since most DOE sites have Fe(III) containing sediments, Pu(IV) in likely not the mobile form of Pu-EDTA in groundwater. The only other Pu-EDTA complex stable in groundwater relevant to DOE sites would be Pu(III)-EDTA, which only forms under anaerobic conditions. Research is therefore needed in this brand new project to investigate the biotransformation of Pu and Pu-EDTA under anaerobic conditions. The biotransformation of Pu and Pu-EDTA under various anaerobic regimes is poorly understood including the reduction kinetics of Pu(IV) to Pu(III) from soluble (Pu(IV)-EDTA) and insoluble Pu(IV) as PuO2(am) by metal reducing bacteria, the redox conditions required for this reduction, the strength of the Pu(III)-EDTA complex, how the Pu(III)-EDTA complex competes with other dominant anoxic soluble metals (e.g., Fe(II)), and the oxidation kinetics of Pu(III)-EDTA. Finally, the formation of a stable soluble Pu(III)-EDTA complex under anaerobic conditions would require degradation of the EDTA complex to limit Pu(III) transport in geologic environments. Anaerobic EDTA degrading microorganisms have not been isolated. These knowledge gaps preclude the development of a mechanistic understanding of how anaerobic conditions will influence Pu and Pu-EDTA fate and transport to assess, model, and design approaches to stop Pu transport in groundwater at DOE sites.

Bolton, H., Jr.; Rai, D.; Xun, L.

2005-04-18T23:59:59.000Z

369

Facility Representative Program: Facility Representative Program Sponsors  

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

Facility Representative Program Sponsors Facility Representative Program Sponsors There are 29 Facility Representative Program Sponsors Office Name Title E-Mail Phone ASO Larry Pendexter ES&H Div Dir (Argonne) larry.pendexter@ch.doe.gov 630-252-1485 BHSO Bob Desmarais Operations Management Division Director desmarai@bnl.gov 631-344-5434 CBFO Glenn Gamlin Facility Representative Supervisor glenn.gamlin@wipp.ws 575-234-8136 CBFO Casey Gadbury Operations Manager casey.gadbury@wipp.ws 575-234-7372 FSO Mark Bollinger Deputy Manager Mark.Bollinger@ch.doe.gov 630-840-8130 FSO John Scott FR Team Lead john.scott@ch.doe.gov 630-840-2250 HS-30 James O'Brien Director, Office of Nuclear Safety James.O'Brien@hq.doe.gov 301-903-1408 HS-32 Earl Hughes Facility Representative Program Manager Earl.Hughes@hq.doe.gov 202-586-0065

370

User Facilities | ORNL  

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

USER PORTAL USER PORTAL BTRICBuilding Technologies Research Integration Center CNMSCenter for Nanophase Materials Sciences CSMBCenter for Structural Molecular Biology CFTFCarbon Fiber Technology Facility HFIRHigh Flux Isotope Reactor MDF Manufacturing Demonstration Facility NTRCNational Transportation Research Center OLCFOak Ridge Leadership Computing Facility SNSSpallation Neutron Source Keeping it fresh at the Spallation Neutron Source Nanophase material sciences' nanotech toolbox Home | User Facilities SHARE ORNL User Facilities ORNL is home to a number of highly sophisticated experimental user facilities that provide unmatched capabilities to the broader scientific community, including a growing user community from universities, industry, and other laboratories research institutions, as well as to ORNL

371

Sonochemical Digestion of Soil and Sediment Samples  

Science Conference Proceedings (OSTI)

This work was performed as part of a broader effort to automate analytical methods for determination of plutonium and other radioisotopes in environmental samples. The work described here represented a screening study to determine the potential for applying ultrasonic irradiation to sample digestion. Two standard reference materials (SRMs) were used in this study: Columbia River Sediment and Rocky Flats Soil. The key experiments performed are listed below along with a summary of the results. The action of nitric acid, regardless of its concentration and liquid-to-solid ratio, did not achieve dissolution efficiency better that 20%. The major fraction of natural organic matter (NOM) remained undissolved by this treatment. Sonication did not result in improved dissolution for the SRMs tested. The action of hydrofluoric acid at concentrations of 8 M and higher achieved much more pronounced dissolution (up to 97% dissolved for the Rocky Flats soil sample and up to 78% dissolved for the Columbia River Sediment sample). Dissolution efficiency remains constant for solid-to-liquid ratios of up to 0.05 to 1 and decreases for the higher loadings of the solid phase. Sonication produced no measurable effect in improving the dissolution of the samples compared with the control digestion experiments. Combined treatment of the SRM by mixtures of HNO3 and HF showed inferior performance compared with the HF alone. An adverse effect of sonication was found for the Rocky Flats soil material, which became more noticeable at higher HF concentrations. Sonication of the Columbia River sediment samples had no positive effect in the mixed acid treatment. The results indicate that applying ultrasound in an isolated cup horn configuration does not offer any advantage over conventional ''heat and mix'' treatment for dissolution of the soil and sediment based on the SRM examined here. This conclusion, however, is based on an approach that uses gravimetric analysis to determine gross dissolution efficiency. This approach does not allow any conclusion regarding the possible advantage of sonication in selective dissolution of plutonium traces incorporated into an inorganic or organic fraction of the samples.

Sinkov, Sergei I.; Lumetta, Gregg J.

2006-10-12T23:59:59.000Z

372

ARM - Facility News Article  

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

October 15, 2005 [Facility News] October 15, 2005 [Facility News] Room to Share-New Guest Facility Ready for Users at North Slope of Alaska Bookmark and Share In September, installation was completed on the new Guest Instrument Facility in Barrow to provide additional space and ease crowded conditions. In September, installation was completed on the new Guest Instrument Facility in Barrow to provide additional space and ease crowded conditions. To alleviate crowded conditions at its research facilities on the North Slope of Alaska (NSA) site in Barrow, ARM operations staff recently completed the installation of a new Guest Instrument Facility. Similar to the platform at the Atqasuk site, the facility consists of two insulated shipping containers mounted on pilings, with a mezzanine to accommodate

373

NREL: Wind Research - Facilities  

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

Facilities Facilities Our facilities are designed to meet the wind industry's critical research needs with state-of-the-art design and testing facilities. NREL's unique and highly versatile facilities at the National Wind Technology Center offer research and analysis of wind turbine components and prototypes rated from 400 watts to 3 megawatts. Satellite facilities support the growth of wind energy development across the United States. National Wind Technology Center Facilities Our facilities are contained within a 305-acre area that comprises field test sites, test laboratories, industrial high-bay work areas, machine shops, electronics and instrumentation laboratories, and office areas. In addition, there are hundreds of test articles and supporting components such as turbines, meteorological towers, custom test apparatus, test sheds,

374

FACET User Facility  

NLE Websites -- All DOE Office Websites

AD SLACPortal > Accelerator Research Division > FACET User Facility AD SLACPortal > Accelerator Research Division > FACET User Facility Sign In Launch the Developer Dashboard SLAC National Accelerator Laboratory DOE | Stanford | SLAC | SSRL | LCLS | AD | PPA | Photon Science | PULSE | SIMES FACET User Facility : FACET An Office of Science User Facility Search this site... Search Help (new window) Top Link Bar FACET User Facility FACET Home About FACET FACET Experimental Facilities FACET Users Research at FACET SAREC Expand SAREC FACET FAQs FACET User Facility Quick Launch FACET Users Home FACET Division ARD Home About FACET FACET News FACET Users FACET Experimental Facilities FACET Research Expand FACET Research FACET Images Expand FACET Images SAREC Expand SAREC FACET Project Site (restricted) FACET FAQs FACET Site TOC All Site Content

375

Government Facilities Segment Analysis  

Science Conference Proceedings (OSTI)

Federal, state, and local governments own or lease an estimated 1.2 million buildings and facilities in the United States. These facilities are an important -- and often overlooked -- customer segment for all energy and energy service providers.

1998-12-19T23:59:59.000Z

376

Geothermal component test facility  

DOE Green Energy (OSTI)

A description is given of the East Mesa geothermal facility and the services provided. The facility provides for testing various types of geothermal energy-conversion equipment and materials under field conditions using geothermal fluids from three existing wells. (LBS)

Not Available

1976-04-01T23:59:59.000Z

377

Metagenome of an Anaerobic Microbial Community Decomposing Poplar Wood Chips  

DOE Green Energy (OSTI)

This study describes the composition and metabolic potential of a lignocellulosic biomass degrading community that decays poplar wood chips under anaerobic conditions. We examined the community that developed on poplar biomass in a non-aerated bioreactor over the course of a year, with no microbial inoculation other than the naturally occurring organisms on the woody material. The composition of this community contrasts in important ways with biomass-degrading communities associated with higher organisms, which have evolved over millions of years into a symbiotic relationship. Both mammalian and insect hosts provide partial size reduction, chemical treatments (low or high pH environments), and complex enzymatic 'secretomes' that improve microbial access to cell wall polymers. We hypothesized that in order to efficiently degrade coarse untreated biomass, a spontaneously assembled free-living community must both employ alternative strategies, such as enzymatic lignin depolymerization, for accessing hemicellulose and cellulose and have a much broader metabolic potential than host-associated communities. This would suggest that such a community would make a valuable resource for finding new catalytic functions involved in biomass decomposition and gaining new insight into the poorly understood process of anaerobic lignin depolymerization. Therefore, in addition to determining the major players in this community, our work specifically aimed at identifying functions potentially involved in the depolymerization of cellulose, hemicelluloses, and lignin, and to assign specific roles to the prevalent community members in the collaborative process of biomass decomposition. A bacterium similar to Magnetospirillum was identified among the dominant community members, which could play a key role in the anaerobic breakdown of aromatic compounds. We suggest that these compounds are released from the lignin fraction in poplar hardwood during the decay process, which would point to lignin-modification or depolymerization under anaerobic conditions.

van der Lelie, D.; Taghavi, S.; McCorkle, S. M.; Li, L. L.; Malfatti, S. A.; Monteleone, D.; Donohoe, B. S.; Ding, S. Y.; Adney, W. S.; Himmel, M. E.; Tringe, S. G.

2012-05-01T23:59:59.000Z

378

Waste-to-Energy Biomass Digester with Decreased Water Consumption  

The enormous amount of biomass waste created by animal feeding operations releases methane, a valuable fuel but also a greenhouse gas, and other pollutants into the environment. Waste digesters reduce this pollution by converting the waste into ...

379

T-728: Apache Tomcat HTTP DIGEST Authentication Weaknesses Let...  

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

not checked realm values were not checked the server secret was hard-coded to a known string The result of these weaknesses is that DIGEST authentication was only as secure as...

380

Supercomputing | Facilities | ORNL  

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

Primary Systems Infrastructure High Performance Storage Supercomputing and Computation Home | Science & Discovery | Supercomputing and Computation | Facilities and Capabilities...

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Idaho Site Nuclear Facilities  

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

Site Nuclear Facilities Idaho Idaho National Laboratorys (INL) Idaho Closure Project (ICP) This page was last updated on May 16...

382

MML Microscopy Facility  

Science Conference Proceedings (OSTI)

The MML Electron Microscopy Facility consists of three transmission electron microscopes (TEM), three scanning electron microscopes (SEM), a ...

2013-06-11T23:59:59.000Z

383

Photon Sciences | Navigation | Facilities  

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

Facilities NSLS About NSLS Accelerator Activity Report Experimental Systems Machine Status & History Operations & Engineering Operating Schedules Ring Parameters NSLS Ops:...

384

Facilities and Instruments  

Science Conference Proceedings (OSTI)

... The EL Facilities listed here are available for cooperative or independent research, typically on a cost reimbursable basis. ...

2013-03-12T23:59:59.000Z

385

Oxidation and methylation of dissolved elemental mercury by anaerobic bacteria  

Science Conference Proceedings (OSTI)

Methylmercury is a neurotoxin that poses significant health risks to humans. Some anaerobic sulphate- and iron-reducing bacteria can methylate oxidized forms of mercury, generating methylmercury1-4. One strain of sulphate-reducing bacteria (Desulfovibrio desulfuricans ND132) can also methylate elemental mercury5. The prevalence of this trait among different bacterial strains and species remains unclear, however. Here, we compare the ability of two strains of the sulphate-reducing bacterium Desulfovibrio and one strain of the iron-reducing bacterium Geobacter to oxidise and methylate elemental mercury in a series of laboratory incubations. Experiments were carried out under dark, anaerobic conditions, in the presence of environmentally-relevant concentrations of elemental mercury. We report differences in the ability of these organisms to oxidise and methylate elemental mercury. In line with recent findings5, we show that Desulfovibrio desulfuricans ND132 can both oxidise and methylate elemental mercury. However, the rate of methylation of elemental mercury is only about one third the rate of methylation of oxidized mercury. We also show that Desulfovibrio alaskensis G20 can oxidise, but not methylate, elemental mercury. Geobacter sulfurreducens PCA is able to oxidise and methylate elemental mercury in the presence of cysteine. We suggest that the activity of methylating and non-methylating bacteria may together enhance the formation of methylmercury in anaerobic environments.

Hu, Haiyan [ORNL] [ORNL; Lin, Hui [ORNL] [ORNL; Zheng, Wang [ORNL] [ORNL; Tomanicek, Stephen J [ORNL] [ORNL; Johs, Alexander [ORNL] [ORNL; Feng, Xinbin [ORNL] [ORNL; Elias, Dwayne A [ORNL] [ORNL; Liang, Liyuan [ORNL] [ORNL; Liang, Liyuan [ORNL] [ORNL; Gu, Baohua [ORNL] [ORNL

2013-01-01T23:59:59.000Z

386

Chemical digestion of low level nuclear solid waste material  

DOE Patents (OSTI)

A chemical digestion for treatment of low level combustible nuclear solid waste material is provided and comprises reacting the solid waste material with concentrated sulfuric acid at a temperature within the range of 230.degree.-300.degree.C and simultaneously and/or thereafter contacting the reacting mixture with concentrated nitric acid or nitrogen dioxide. In a special embodiment spent ion exchange resins are converted by this chemical digestion to noncombustible gases and a low volume noncombustible residue.

Cooley, Carl R. (Richland, WA); Lerch, Ronald E. (Richland, WA)

1976-01-01T23:59:59.000Z

387

Parameter identification in dynamical models of anaerobic waste water treatment  

E-Print Network (OSTI)

remain the implementation of biogas, moving farms and implementing regulations, they could nevertheless priority on the growth of production. Two main measures are pro- moted: the development of biogas systems, of the VAC kind, usually owning a biogas digester and located outside the village. - semi-intensive "gia trai

Timmer, Jens

388

Facility Representative Program: 2004 Facility Representative Workshop  

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

4 Facility Representative Workshop 4 Facility Representative Workshop May 18 - 20, 2004 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Final Day 1: Tuesday, May 18, 2004 Theme: Program Successes and Challenges 8:00 a.m. Opening Remarks John Evans, Facility Representative Program Manager 8:15 a.m. Welcome Kathy Carlson, Nevada Site Office Manager 8:30 a.m. Videotaped Remarks from the Deputy Secretary Kyle E. McSlarrow, Deputy Secretary of Energy Deputy Secretary's Remarks 8:40 a.m. Keynote Address - NNSA Evaluation of Columbia Accident Investigation Board Report Brigadier General Ronald J. Haeckel, Principal Assistant Deputy Administrator for Military Applications, NNSA Other Information: NASAÂ’S Columbia Accident Investigation Board Report

389

Facility Representative Program: 2006 Facility Representative Workshop  

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

6 Facility Representative Workshop 6 Facility Representative Workshop May 16 - 19, 2006 Knoxville, Tennessee Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Final To view Pictures, scroll the mouse over the Picture icon To view Presentations, Picture Slideshows and Video, click on the icon Day 1: Tuesday, May 16, 2006 8:00 a.m. Opening Remarks John Evans, Facility Representative Program Manager 8:15 a.m. Welcome from Oak Ridge Office Gerald Boyd, Manager, Oak Ridge Office 8:25 a.m. Welcome from Y-12 Site Office Theodore Sherry, Manager, Y-12 Site Office 8:35 a.m. Videotaped Remarks from the Deputy Secretary The Honorable Clay Sell, Deputy Secretary of Energy 8:40 a.m. Keynote Address - Safety Oversight at Environmental Management Activities Dr. Inés Triay, Chief Operating Officer, Office of Environmental Management

390

Facility Representative Program: 2000 Facility Representative...  

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

- Break 10:00 a.m. - Making Your Observations CountLeading Indicators - Mike Weis, Rocky Flats Field Office 10:45 a.m. - Facility Representative PanelQuestions and Answers (Ben...

391

NREL: Buildings Research - Facilities  

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

Facilities Facilities NREL provides industry, government, and university researchers with access to state-of-the-art and unique equipment for analyzing a wide spectrum of building energy efficiency technologies and innovations. NREL engineers and researchers work closely with industry partners to research and develop advanced technologies. NREL's existing facilities have been used to test and develop many award-winning building technologies and innovations that deliver significant energy savings in buildings, and the new facilities further extend those capabilities. In addition, the NREL campus includes living laboratories, buildings that researchers and other NREL staff use every day. Researchers monitor real-time building performance data in these facilities to study energy use

392

Full scale field demonstration of unheated anaerobic contact stabilization. Quarterly project status report, April-June 1980  

DOE Green Energy (OSTI)

The City of Columbus provided funds for the preliminary shakedown of the anaerobic contact stabilization system. During the shakedown period, the sludge recycle system was tested, and the temperature control system was refurbished. At temperatures as low as 82/sup 0/F there is no noticeable loss in gas production for SRT's over 14 days. Some of the preliminary data on the overflow and underflow liquors from unit 6E suggested that substantial amounts of VS were not settling in 6E and, consequently, were not being recycled. Therefore, an examination of the settleability of the transfer sludge (4E to 6E) is underway. Some typical preliminary results are shown. The occurence of gasification in the scum layer raises the issue of where the mathanogenic bacteria are to be found in the settler (6E). Some preliminary tests have been conducted to answer this question, and a typical set of results demonstrate the relative population densities of methanogens in scum and settled digested solids. It is clear that if scum is not retained in the system, significant losses of system biomass will occur via the settler overflow.

Sykes, R.M.

1980-08-01T23:59:59.000Z

393

Facility Name Facility Name Facility FacilityType Owner Developer EnergyPurchaser  

Open Energy Info (EERE)

Name Facility Name Facility FacilityType Owner Developer EnergyPurchaser Name Facility Name Facility FacilityType Owner Developer EnergyPurchaser Place GeneratingCapacity NumberOfUnits CommercialOnlineDate WindTurbineManufacturer FacilityStatus Coordinates D Metals D Metals D Metals Definition Small Scale Wind Valley City OH MW Northern Power Systems In Service AB Tehachapi Wind Farm AB Tehachapi Wind Farm AB Tehachapi Definition Commercial Scale Wind Coram Energy AB Energy Southern California Edison Co Tehachapi CA MW Vestas In Service AFCEE MMR Turbines AFCEE MMR Turbines AFCEE MMR Turbines Definition Commercial Scale Wind AFCEE Air Force Center for Engineering and the Environment Distributed generation net metered Camp Edwards Sandwich MA MW GE Energy In Service AG Land AG Land AG Land Definition Community Wind AG Land Energy LLC

394

ARM - Facility News Article  

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

March 22, 2007 [Facility News] March 22, 2007 [Facility News] GEWEX News Features Dust Data from ARM Mobile Facility Deployment Bookmark and Share Data from the recent deployment of the ARM Mobile Facility are featured in the February issue of GEWEX News. Data from the recent deployment of the ARM Mobile Facility are featured in the February issue of GEWEX News. The February 2007 issue (Vol. 17, No. 1) of GEWEX News features early results from special observing periods of the African Monsoon Mutidisciplinary Analysis, including data obtained by the ARM Mobile Facility (AMF). The AMF was stationed in the central Sahel from January through December 2006, with the primary facility at the Niamey airport, and an ancillary site in Banizoumbou. The AMF recorded a major dust storm that passed through the area in March, and combined with simultaneous satellite

395

ARM - Facility News Article  

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

February 16, 2005 [Facility News] February 16, 2005 [Facility News] Mobile Facility Arrives Safe and Sound in Point Reyes Bookmark and Share Image - The ARM Mobile Facility in Point Reyes, California Image - The ARM Mobile Facility in Point Reyes, California Safe and sound at Point Reyes, the ARM Mobile Facility instrumentation is set up on the roof of a shelter until a fence is installed to keep out the curious local cattle. On February 9, the ARM Mobile Facility (AMF) withstood an accident on the way to its deployment location at Point Reyes, California. About an hour from its destination, the truck carrying the two AMF shelters packed with instrumentation and associated equipment swerved to avoid another vehicle and slid off the road and down a steep embankment. Emergency personnel soon

396

ARM - Facility News Article  

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

22, 2011 [Facility News] 22, 2011 [Facility News] Request for Proposals Now Open Bookmark and Share The ARM Climate Research Facility is now accepting applications for use of an ARM mobile facility (AMF), the ARM aerial facility (AAF), and fixed sites. Proposals are welcome from all members of the scientific community for conducting field campaigns and scientific research using the ARM Facility, with availability as follows: AMF2 available December 2013 AMF1 available March 2015 AAF available between June and October 2013 Fixed sites available FY2013 Priority will be given to proposals that make comprehensive use of the ARM facilities and focus on long-term goals of the DOE Office of Biological and Environmental Research. Successful proposals will be supplied all operational and logistical resources (provided at no cost to the principal

397

DEVELOPMENT OF IMPROVED ANAEROBIC GROWTH OF BACILLUS MOJAVENSIS STRAIN JF-2 FOR THE PURPOSE OF IMPROVED ANAEROBIC BIOSURFACTANT PRODUCTION FOR ENHANCED OIL RECOVERY  

Science Conference Proceedings (OSTI)

Our work focuses on the use of microorganisms to recover petroleum hydrocarbons that remain entrapped after current recovery technologies reach their economic limit. Capillary forces between the hydrocarbon and aqueous phases are largely responsible for trapping the hydrocarbons in the pores of the rock and large reductions in the interfacial tension between the hydrocarbon and aqueous phases are needed for hydrocarbon mobilization (1-3, 10, 11). Microorganisms produce a variety of biosurfactants (4), several of which generate the ultra low interfacial tensions needed for hydrocarbon mobilization (4, 5, 8). In particular, the lipopeptide biosurfactant produced by Bacillus mojavensis strain JF-2 reduces the interfacial tension between hydrocarbon and aqueous phases to very low levels (herring sperm DNA, E. coli DNA or synthetic DNA (single or double stranded) to Medium E all supported anaerobic growth of JF-2. Further, we found that JF-2 required all four deoxyribonucleosides (deoxyadeonosine, deoxyguanosine, deoxycytidine and thymidine) for growth under strict anaerobic conditions. The requirement for the deoxyribonucleosides did not occur under aerobic growth conditions. DNA was not used as a sole energy source; sucrose was required for anaerobic growth and biosurfactant production in DNA-supplemented Medium E. In addition to DNA or deoxyribonucleosides, nitrate, amino acids and vitamins were all required for anaerobic growth of JF-2. Bacillus mojavensisT (ABO21191), Bacillus mojavensis, strain ROB2 also required DNA or deoxyribonucleosides for anaerobic growth. The improved anaerobic growth of Bacillus mojavensis JF-2 was a prerequisite for studies that will lead to improved anaerobic biosurfactant production.

M.J. McInerney; M. Folmsbee; D. Nagle

2004-05-31T23:59:59.000Z

398

Natural attenuation of chlorinated ethenes by anaerobic reductive dechlorination coupled with aerobic cometabolism  

Science Conference Proceedings (OSTI)

Chlorinated solvents and their daughter products are the most common contaminants of groundwater at industrial and military facilities in the United States. Natural attenuation of chlorinated solvents is a promising alternative to traditional pump and treat methods but has not been well understood or widely accepted. This modeling study investigated the ability of TCE to completely degrade under various aquifer conditions and rate order constants. It also examined a case study of a former landfill site at Moody AFB. The author found unusually high flow of ground water by advection or dispersion inhibits the complete degradation of TCE. High concentrations of sulfate or nitrate inhibit the creation of methanogenic conditions and therefore inhibit reductive dechlorination of TCE. He also found an electron donor co-contaminant a critical factor for the complete destruction of TCE because it creates anaerobic conditions. The model illustrated a possible explanation for the lack of down gradient contaminants at the landfill site may be the coupling of reductive dechlorination and cometabolism naturally attenuation the contaminants.

Veerkamp, D.D.

1999-03-01T23:59:59.000Z

399

NREL: Technology Transfer - Research Facilities  

NREL's Solar Energy Research Facility is one of many world-class facilities available to public and private agencies.

400

Quantum Electrical Metrology Division Facilities  

Science Conference Proceedings (OSTI)

Microfabrication Facility Our facilities for fabrication of integrated circuits are essential to nearly all of the work in the Group. ...

2011-10-03T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Policies and Procedures - Accessing Facilities  

Science Conference Proceedings (OSTI)

... of Facilities Use Agreements: Description of the facilities use agreements ... Criteria: Guidance for applicants describing essential information about ...

2013-09-24T23:59:59.000Z

402

Biogas From Municipal WWTPs: Fuel Cells Viewed as a Value Proposition  

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

From Municipal WWTPs From Municipal WWTPs Fuel Cells Viewed as a Value Proposition Biogas and Fuel Cells Workshop National Renewable Energy Laboratory Golden, Colorado June 12, 2012 WWTP Anaerobic Digestion * Common method of processing sludge to reduce volume of solids & volatile content * Reduces sludge disposal cost & increases outlets for disposal * Since motivation is disposal rather than digester gas (DG) production, the DG is available at no cost * This is unlike many other organic waste digestion facilities, where the energy project must bear cost of the digester(s) WWTP Anaerobic Digestion * WWTP anaerobic digesters require heat * Typically a portion of the DG is used to produce steam or hot water to provide the heat * The heat required varies seasonally,

403

ARM - Facility News Article  

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

8, 2010 [Facility News] 8, 2010 [Facility News] Europeans Keen to Hear About Effects of Dust Using Data from Africa Bookmark and Share In 2006, the ARM Mobile Facility joined the AMMA project to obtain data for scientists to study the impact that airborne Saharan dust has on incoming solar radiation. This photo shows the sun setting through a dusty atmosphere near Niamey, Niger, where the mobile facility was deployed for one year. In 2006, the ARM Mobile Facility joined the AMMA project to obtain data for scientists to study the impact that airborne Saharan dust has on incoming solar radiation. This photo shows the sun setting through a dusty atmosphere near Niamey, Niger, where the mobile facility was deployed for one year. Researcher Xiaohong Liu from Pacific Northwest National Laboratory was

404

ARM - Facility News Article  

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

April 30, 2008 [Facility News] April 30, 2008 [Facility News] Team Scouts Graciosa Island for 2009 Mobile Facility Deployment Site Bookmark and Share A location near the airport on the northern end of Graciosa Island was identified as an excellent location for operating the ARM Mobile Facility. Image source: Luis Miguens A location near the airport on the northern end of Graciosa Island was identified as an excellent location for operating the ARM Mobile Facility. Image source: Luis Miguens Indications from a scouting trip by the ARM Mobile Facility (AMF) science and operations management team are that an excellent site for the 2009 deployment may have been found. From April 8 through April 16, the team traveled to Graciosa Island in the Azores to scout sites for the Clouds, Aerosol, and Precipitation in the Marine Boundary Layer (CAP-MBL) field

405

ARM - Facility News Article  

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

July 31, 2009 [Facility News] July 31, 2009 [Facility News] President of the Regional Government Speaks at Opening Ceremony for Mobile Facility in the Azores Bookmark and Share Highlighting the opening ceremony for the ARM Mobile Facility on Graciosa Island, Carlos César, President of the Regional Government of the Azores, signs a weather balloon while local media record the event. Photo by Mike Alsop. Highlighting the opening ceremony for the ARM Mobile Facility on Graciosa Island, Carlos César, President of the Regional Government of the Azores, signs a weather balloon while local media record the event. Photo by Mike Alsop. On June 30, officials from the Regional Government of the Azores recognized the deployment of the ARM Mobile Facility on Graciosa Island during an official opening ceremony held at the site. Notable among the participants

406

ARM - Facility News Article  

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

6, 2012 [Facility News] 6, 2012 [Facility News] News Tips from 2012 EGU General Assembly Bookmark and Share The ARM Facility is attending the 2012 European Geophysical Union General Assembly at the Austria Center in Vienna for the first time. The ARM Facility is attending the 2012 European Geophysical Union General Assembly at the Austria Center in Vienna for the first time. VIENNA - The U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility is the world's most comprehensive outdoor laboratory and data archive for research related to atmospheric processes that affect Earth's climate. At the European Geophysical Union (EGU) General Assembly 2012 in Vienna, find out how scientists use the ARM Facility to study the interactions between clouds,

407

BNL | Accelerator Test Facility  

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

Accelerator Test Facility Accelerator Test Facility Home Core Capabilities Photoinjector S-Band Linac Laser Systems CO2 Laser Nd:Yag Laser Beamlines Beamline Simulation Data Beamline Parameters Beam Diagnostics Detectors Beam Schedule Operations Resources Fact Sheet (.pdf) Image Library Upgrade Proposal (.pdf) Publications ES&H Experiment Start-up ATF Handbook Laser Safety Collider-Accelerator Dept. C-AD ES&H Resources Staff Users' Place Apply for Access ATF photo ATF photo ATF photo ATF photo ATF photo A user facility for advanced accelerator research The Brookhaven Accelerator Test Facility (ATF) is a proposal driven, steering committee reviewed facility that provides users with high-brightness electron- and laser-beams. The ATF pioneered the concept of a user facility for studying complex properties of modern accelerators and

408

ARM - Facility News Article  

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

8, 2011 [Facility News, Publications] 8, 2011 [Facility News, Publications] Journal Special Issue Includes Mobile Facility Data from Germany Bookmark and Share The ARM Mobile Facility operated in Heselbach, Germany, as part of the COPS surface network. The ARM Mobile Facility operated in Heselbach, Germany, as part of the COPS surface network. In 2007, the ARM Mobile Facility participated in one of the most ambitious field studies ever conducted in Europe-the Convective and Orographically Induced Precipitation Study (COPS). Now, 21 papers published in a special issue of the Quarterly Journal of the Royal Meteorological Society demonstrate that the data collected during COPS are providing new insight into: the key chemical and physical processes leading to convection initiation and to the modification of precipitation by orography;

409

WIPP - Public Reading Facilities  

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

Public Reading Facilities/Electronic Reading Facilities The Freedom of Information Act (FOIA) and Electronic FOIA (E-FOIA) require that various specific types of records, as well as various other records, be maintained in public reading facilities. Before you submit a FOIA request, we recommend you contact or visit the appropriate public reading facility to determine if the records you are seeking have already been released. The U.S. Department of Energy (DOE), as well as other related DOE sites, have established home pages on the Internet with links to other web sites. If you determine a specific facility might have records in which you are interested, requests for those records can be made directly to the public reading rooms identified below. Copying of records located in the public reading rooms must be made by the staff of those facilities.

410

ARM - Facility News Article  

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

15, 2005 [Facility News] 15, 2005 [Facility News] Aging, Overworked Computer Network at SGP Gets Overhauled Bookmark and Share This aerial map of instruments deployed at the SGP Central Facility provides an indication of the computer resources needed to manage data at the site, let alone communicate with other ARM sites. This aerial map of instruments deployed at the SGP Central Facility provides an indication of the computer resources needed to manage data at the site, let alone communicate with other ARM sites. Established as the first ARM research facility in 1992, the Southern Great Plains (SGP) site in Oklahoma is the "old man on the block" when it comes to infrastructure. Though significant improvements have been made to facilities and equipment throughout the years, the computer network at the

411

ARM - Facility News Article  

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

April 7, 2011 [Facility News] April 7, 2011 [Facility News] Review Panel States ARM Facility "Without Peer" Bookmark and Share Every three years, DOE Office of Science user facilities undergo a review to evaluate their effectiveness in contributing to their respective science areas. The latest ARM Facility review was conducted in mid-February by a six-member review panel led by Minghua Zhang of Stony Brook University. Notably, in a debriefing following the review, the panel stated that ARM was a "world class facility without peer." The panel convened in Ponca City, Oklahoma, near ARM's Southern Great Plains site to conduct their review. Their first agenda item was an SGP site tour, which provided a realtime example of the scope and expertise of site operations and included a demonstration of the site's newly

412

Integrated Facilities Disposition Program  

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

Facilities Facilities Disposition Program Tank Waste Corporate Board Meeting at ORNL Sharon Robinson Dirk Van Hoesen Robert Jubin Brad Patton July 29, 2009 2 Managed by UT-Battelle for the U.S. Department of Energy The Integrated Facility Disposition Program (IFDP) addresses the remaining EM Scope at both ORNL and Y-12 Cost Range: $7 - $14B Schedule: 26 Years 3 Managed by UT-Battelle for the U.S. Department of Energy Scope of work * Treatment and disposition of legacy materials and waste * D&D 327 (1.5 M ft 2 ) excess facilities generating >2 M yd 3 debris * Soil and groundwater remedial actions generating >1 M yd 3 soils * Facilities surveillance and maintenance * Reconfiguration of waste management facilities * Ongoing waste management operations * Project management

413

ARM - Facility News Article  

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

4, 2013 [Facility News] 4, 2013 [Facility News] Work Cut Out for ARM Science Board Bookmark and Share With a new fixed site on the horizon in the Azores, a third ARM Mobile Facility gearing up for action in the Arctic, and more aircraft probes and sensors than scientists can shake a stick at, the ARM Facility continues to expand its considerable suite of assets for conducting climate research. Along with this impressive inventory comes the responsibility to ensure the Facility is supporting the highest-value science possible. Enter the ARM Science Board. This eleven-member group annually reviews complex proposals for use of the ARM mobile and aerial facilities. To maintain excellence and integrity in the review process, each member serves a renewable term of two years, with membership updated annually.

414

Can Delignification Decrease Cellulose Digestibility in Acid Pretreated Corn Stover?  

Science Conference Proceedings (OSTI)

It has previously been shown that the improved digestibility of dilute acid pretreated corn stover is at least partially due to the removal of xylan and the consequent increase in accessibility of the cellulose to cellobiohydrolase enzymes. We now report on the impact that lignin removal has on the accessibility and digestibility of dilute acid pretreated corn stover. Samples of corn stover were subjected to dilute sulfuric acid pretreatment with and without simultaneous (partial) lignin removal. In addition, some samples were completely delignified after the pretreatment step using acidified sodium chlorite. The accessibility and digestibility of the samples were tested using a fluorescence-labeled cellobiohydrolase (Trichoderma reesei Cel7A) purified from a commercial cellulase preparation. Partial delignification of corn stover during dilute acid pretreatment was shown to improve cellulose digestibility by T. reesei Cel7A; however, decreasing the lignin content below 5% (g g{sup -1}) by treatment with acidified sodium chlorite resulted in a dramatic reduction in cellulose digestibility. Importantly, this effect was found to be enhanced in samples with lower xylan contents suggesting that the near complete removal of xylan and lignin may cause aggregation of the cellulose microfibrils resulting in decreased cellulase accessibility.

Ishizawa, C. I.; Jeoh, T.; Adney, W. S.; Himmel, M. E.; Johnson, D. K.; Davis, M. F.

2009-01-01T23:59:59.000Z

415

Energetics and kinetics of anaerobic aromatic and fatty acid degradation  

DOE Green Energy (OSTI)

The kinetics of benzoate degradation by the anaerobic syntrophic bacterium, Syntrophus buswellii, was studied in coculture with Desulfovibrio strain G11. The threshold value for benzoate degradation was dependent on the acetate concentration with benzoate threshold values ranging from 2.4 [mu]M at 20 mM acetate to 30.0 [mu]M at 65 mM acetate. Increasing acetate concentrations also inhibited the rate of benzoate degradation with a apparent K[sub i] for acetate inhibition of 7.0 mM. Lower threshold values were obtained when nitrate rather than sulfate was the terminal electron acceptor. These data are consistent with a thermodynamic explanation for the threshold, and suggest that there is a minimum Gibbs free energy value required for the degradation of benzoate. An acetoacetyl-CoA thiolase has been isolated from Syntrophomonas wolfei; it is apparently a key enzyme controlling the synthesis of poly-B-hydroxyalkanoate from acetyl-CoA in this organism. Kinetic characterization of the acetoacetyl-CoA thiolase from S. wolfei showed that it is similar in its structural, kinetic, and apparent regulatory properties to other biosynthetic acetoacetyl-CoA thiolases from phylogenetically distinct bacteria that synthesize PHA. Intracellular concentrations of CoA and acetyl-CoA are believed to be critical factors regulating the activity of the acetoacetyl-CoA thiolase in S. wolfei. We have also isolated and characterized several new halophilic anaerobic fermentative anaerobes. Phylogenetic analysis indicates that one of these bacteria is a new species in the genus, Haloanaerobium. Two other species appear to be members of the genus, Halobacteroides. Several halophilic acetoclastic methanogenic bacteria have also been isolated and their physiological properties are currently under investigation. We have also isolated an acetate-using dissimilatory iron-reducing bacterium.

McInerney, M.J.

1992-11-16T23:59:59.000Z

416

ARM - Facility News Article  

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

November 30, 2008 Facility News Site Operations Centralized Through New Tracking System Bookmark and Share Tracking over 300 instrument systems distributed around the world is a...

417

ARM Climate Research Facility  

NLE Websites -- All DOE Office Websites

banner banner Home | People | Site Index Atmospheric Radiation Measurement Climate Research Facility US Department of Energy About Science Campaigns Sites Instruments Measurements Data News Publications Education Become a User Recovery Act Mission FAQ Outreach Displays History Organization Participants Facility Statistics Forms Contacts Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings Propose a Campaign Submitting Proposals: Guidelines Featured Campaigns Campaign Data List of Campaigns Aerial Facility Eastern North Atlantic Mobile Facilities North Slope of Alaska Southern Great Plains Tropical Western Pacific Location Table Contacts Instrument Datastreams Value-Added Products PI Data Products Field Campaign Data Related Data

418

BTRIC - User Facility - ORNL  

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

whole-building and community integration, improved energy management in buildings and industrial facilities during their operational phase, and market transformations from old...

419

Superalloy Research Facilities  

Science Conference Proceedings (OSTI)

Feb 8, 2007 ... This directory provides a list of links to superalloy research facilities and programs around the world. Two formats of the information are ...

420

Wind Manufacturing Facilities  

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

America's wind energy industry supports a growing domestic industrial base. Check out this map to find manufacturing facilities in your state.

Note: This page contains sample records for the topic "anaerobic digester facility" 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

ARM Climate Research Facility  

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

TR-081.2 iii Abstract This report provides a short description of the Atmospheric Radiation Measurement (ARM) Climate Research Facility microwave radiometer (MWR) Retrieval...

422

ARM - Facility News Article  

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

instruments and equipment, as well as local facilities such as hospitals, groceries, and gas stations. Next steps will involve such items as securing access to power from nearby...

423

ARM - Facility News Article  

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

September 30, 2004 Facility News New Instrumentation on Proteus Aircraft Tested This fall, the ARM-Unmanned Aerospace Vehicle Program-specifically, the Proteus aircraft-is...

424

ARM - Facility News Article  

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

15 and 21 will remain intact, along with the Central Facility (C1) near Lamont. Instrumentation at the remaining sites will be consolidated into the new, smaller footprint....

425

Lighting Systems Test Facilities  

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

Measurement equipment with light beam Lighting Systems Test Facilities NOTICE Due to the current lapse of federal funding, Berkeley Lab websites are accessible, but may not be...

426

ARM - Facility News Article  

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

August 2, 2013 Facility News 2014 Funding Opportunity Available for Early Career Scientists The U.S. Department of Energy's Office of Science is now accepting research...

427

User Facilities - Learn More  

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

Shared Research Equipment (ShaRE) The Shared Research Equipment (ShaRE) User Facility at the Oak Ridge National Laboratory (ORNL) is one of three Electron Beam...

428

ARM - Facility News Article  

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

February 15, 2008 Facility News User Group Provides Recommendations for Data Archive Improvements Routine data from the ARM sites and ARM-sponsored field campaigns are stored in...

429

User Facilities - Learn More  

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

Neutron Source Search by Equipment or Process User Portal Quick Links ORNL home User facility contacts ORNL Guest House Open Helpful Travel Information Learn More User...

430

ARM - Facility News Article  

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

October 31, 2008 Facility News Breakthrough User Interface Delivers Statistical Views of Data With its "drill-down" preview feature, the Statistical Browser is the first example...

431

ARM - Facility News Article  

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

Mapping It Up With Google Bookmark and Share "Thumbtacks" help ARM website users identify where the ARM sites are, including the ARM Mobile Facility deployments. "Thumbtacks" help...

432

Facility Survey & Transfer  

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

As DOE facilities become excess, many that are radioactively and/or chemically contaminated will become candidate for transfer to DOE-EM for deactivation and decommissioning.

433

ARM - Facility News Article  

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

features the familiar faces of Professor Polar Bear, Teacher Turtle, and PI Prairie Dog (each representing an ARM Climate Research Facility site), but now provides easier...

434

Facilities for Calibration  

Science Conference Proceedings (OSTI)

... Our state-of-the-art property measurements require extensive calibration facilities of equal quality. Regular calibrations are essential for realistic ...

2014-01-03T23:59:59.000Z

435

ARM - Facility News Article  

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

June 30, 2007 Facility News New Radar Wind Profiler Joins AMF Instrument Suite in Germany The 1290 MHz wind profiler (foreground) joins the eddy correlation system (background)...

436

ARM - SGP Boundary Facility  

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

facilities-located at Hillsboro, Kansas; Morris, Oklahoma; Purcelll, Oklahoma and Vici, Oklahoma (north, east, south and west, respectively)-marked the approximate midpoint of...

437

Clostridiumm ljungdahlii, an anaerobic ethanol and acetate producing microorganism  

DOE Patents (OSTI)

A newly discovered microorganism was isolated in a biologically pure culture and designated Clostridium ljungdahlii, having the identifying characteristics of ATCC No. 49587. Cultured in an aqueous nutrient medium under anaerobic conditions, this microorganism is capable of producing ethanol and acetate from CO and H.sub.2 O and/or CO.sub.2 and H.sub.2 in synthesis gas. Under optimal growth conditions, the microorganism produces acetate in preference to ethanol. Conversely, under non-growth conditions, ethanol production is favored over acetate.

Gaddy, James L. (Fayetteville, AR); Clausen, Edgar C. (Fayetteville, AR)

1992-01-01T23:59:59.000Z

438

Clostridiumm ljungdahlii, an anaerobic ethanol and acetate producing microorganism  

DOE Patents (OSTI)

A newly discovered microorganism was isolated in a biologically pure culture and designated Clostridium ljungdahlii, having the identifying characteristics of ATCC No. 49587. Cultured in an aqueous nutrient medium under anaerobic conditions, this microorganism is capable of producing ethanol and acetate from CO and H[sub 2]O and/or CO[sub 2] and H[sub 2] in synthesis gas. Under optimal growth conditions, the microorganism produces acetate in preference to ethanol. Conversely, under non-growth conditions, ethanol production is favored over acetate. 3 figs.

Gaddy, J.L.; Clausen, E.C.

1992-12-22T23:59:59.000Z

439

Written for presentation at the 2007 ASABE Annual International Meeting  

E-Print Network (OSTI)

Abstract. Anaerobic digestion on the farm has been promoted for decades as an effective method to reduce pollution and produce fuel. However, because of the cost and the problems associated with anaerobic digestion of animal manures and the lack of return on the investment, there are relatively few digesters being installed in the United States. Most of the biogas produced by anaerobic digestion is used to generate electricity. Grid interconnect agreements require lengthy negotiations and are difficult to finalize. Usually the electrical rates received are below the cost of production because equipment for electrical generation is expensive to install and expensive to maintain. By showing that biogas can easily be used as a fuel in trucks and/or tractors, anaerobic digestion would be more attractive especially on smaller facilities. High fuel prices are starting to have a significant impact on the economic viability of farms. If farmers could produce there own fuel in the form of biogas the pay back time on an anaerobic digester system could be reduced significantly. This would also encourage the installation of more pollution preventing anaerobic digester systems. With the help from a Rural Development (USDA), grant, Utah State University has been operating a 1996 Chevy ton truck on biogas produced by their Induced Blanket Reactor (IBR) anaerobic digester. This presentation will report on the trucks performance over the past 8 months comparing the use of biogas with gasoline and natural gas. Data includes horse power tests, oil sampling, and emissions tests.

Carl S. Hansen Phd; Conly Hansen Phd; Greg Sullivan; Sponsored Asabe

2007-01-01T23:59:59.000Z

440

Literature analysis of anaerobic wastewater treatment in China from 1998 to 2008  

Science Conference Proceedings (OSTI)

Based on the bibliometric method, this paper analyzes statistically the research papers on anaerobic wastewater treatment in China collected by China Journal Whole-length Database of National Knowledge Infrastructure (CNKI) published during the period ... Keywords: anaerobic treatment, bibliometric method, literature, wastewater

Liu Min; Huang Zhan-bin; Huang Zhen

2010-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "anaerobic digester facility" 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

Compartmental anaerobic baffled reactor kinetic model for treatment of dilute aircraft deicing fluid  

Science Conference Proceedings (OSTI)

A four-compartment, anaerobic baffled reactor (ABR) incorporating granular sludge biomass (GSB) was operated at different hydraulic retention times (HRTs) in the range of 3 to 24 hours using dilute aircraft deicing fluid (ADF) with different chemical ... Keywords: anaerobic, baffled reactor, deicing fluid

Juan Marin; Kevin J. Kennedy; Cigdem Eskicioglu; Mohamed F. Hamoda

2007-08-01T23:59:59.000Z

442

Operation of a 200-kW PAFC Unit on Anaerobic Digestor Gas  

Science Conference Proceedings (OSTI)

The anaerobic digestor process used by over 90% of wastewater treatment plants generates methane-rich gas as a byproduct. This report describes the initial phases of a twelve-month demonstration project in which a fuel cell power plant in Yonkers, New York, is being successfully run on anaerobic digestor gas (ADG).

1997-12-30T23:59:59.000Z

443

The Effects of Different Anaerobic Fermentation Temperature on Biogas Fermentation of Swine Manure  

Science Conference Proceedings (OSTI)

Biogas yields and methane productivity were studied at different temperatures (15¡æ, 20¡æ, 25¡æ, 30¡æ and 35¡æ) by the way of anaerobic fermentation experiment which takes wine manure as biogas fermentation raw material, and ... Keywords: Temperature, Biogas, Swine manure, Anaerobic fermentation

Zhu Zongqiang; Cheng Guanwen; Zhu Yinian; Zeng Honghu; Wei Rongrong; Wei Caichun

2011-02-01T23:59:59.000Z

444

Nuclear Regulatory Commission Information Digest 1994 edition. Volume 6  

SciTech Connect

The Nuclear Regulatory Commission Information Digest (digest) provides a summary of information about the US Nuclear Regulatory Commission (NRC), NRCs regulatory responsibility the activities NRC licenses, and general information on domestic and worldwide nuclear energy. The digest, published annually, is a compilation of nuclear-and NRC-related data and is designed to provide a quick reference to major facts about the agency and the industry it regulates. In general, the data cover 1975 through 1993, with exceptions noted. Information on generating capacity and average capacity factor for operating US commercial nuclear power reactors is obtained from monthly operating reports that are submitted directly to the NRC by the information is reviewed by the NRC for consistency only and no independent validation and/or verification is performed.

Stadler, L.

1994-03-01T23:59:59.000Z

445

Facility Representative Program: DOE Facility Representatives  

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

WIPP PADU PORTS ANL WVDP MOAB SFO LFO LAFO NFO SRFO RL PNSO ORP ID NPO-PX FSO NBL NPO-Y12 ORO OSO SPRU BHSO PSO SR SR NA26 DOE Facility Site Map Please help keep this...

446

Biological Sciences Facility and Computational Sciences Facility  

E-Print Network (OSTI)

on PNNL's campus since 1997. Combined, the two facilities house about 300 staff who support PNNL replacing laboratory and office space PNNL has been using on the south end of the nearby Hanford Site financed the new buildings and is leasing them to Battelle, which operates PNNL for DOE. #12;January 2010

447

Lunch & Learn Facilities &  

E-Print Network (OSTI)

reimbursements to the University for costs incurred in support of sponsored projects Sponsor perspective: F&A represent the sponsor's fair share of facilities and administration as it relates to total project costs 7Lunch & Learn Facilities & Administrative (F&A) Costs #12;Today's Agenda What are F&A Costs? How

McQuade, D. Tyler

448

Facility location: distributed approximation  

Science Conference Proceedings (OSTI)

In this paper, we initiate the study of the approximability of the facility location problem in a distributed setting. In particular, we explore a trade-off between the amount of communication and the resulting approximation ratio. We give a distributed ... Keywords: distributed approximation, facility location, linear programming, primal-dual algorithms

Thomas Moscibroda; Rogert Wattenhofer

2005-07-01T23:59:59.000Z

449

Argonne Leadership Computing Facility  

E-Print Network (OSTI)

on constant Q surface. (Credit: Anurag Gupta/GE Global) www.alcf.anl.gov The Leadership Computing Facility Division operates the Argonne Leadership Computing Facility -- the ALCF -- as part of the U.S. Department.......................................................................................... 63 2010 ALCF Projects ............................................................................ 64

Kemner, Ken

450

NSA Barrow Facility  

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

Barrow Facility Barrow Facility NSA Related Links Facilities and Instruments Barrow Atqasuk ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Images Information for Guest Scientists Contacts NSA Barrow Facility Location: 71° 19' 23.73" N, 156° 36' 56.70" W Altitude: 8 meters The Barrow facility was dedicated in July 1997 and chosen because the Arctic is particularly sensitive to climate changes. Barrow is located at the northernmost point in the United States, 330 miles north of the Arctic Circle. Also known as the Top of the World, Barrow is Alaska's largest Eskimo village (home to 4,581 people). Tax revenue from the Slope's oil fields pay for services borough wide, and natural gas is used to heat homes and generate electricity in Barrow. Many residents, however, maintain

451

ARM - Facility News Article  

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

25, 2013 [Education, Facility News] 25, 2013 [Education, Facility News] Junior Rangers Enjoy Science Education at ARM Facility on Cape Cod Bookmark and Share Children and adults join in the balloon launch countdown at the ARM Mobile Facility site at Cape Cod National Seashore. Weather balloons are launched at regular intervals four times per day throughout the one-year campaign. Children and adults join in the balloon launch countdown at the ARM Mobile Facility site at Cape Cod National Seashore. Weather balloons are launched at regular intervals four times per day throughout the one-year campaign. School break means vacation, and around Cape Cod, that often means a trip to the seashore. On April 17, families looking for fun and educational outdoor activities spent several hours at Cape Cod National Seashore's

452

ARM - NSA Barrow Facility  

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

Barrow Facility Barrow Facility NSA Related Links Facilities and Instruments Barrow Atqasuk ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Images Information for Guest Scientists Contacts NSA Barrow Facility Location: 71° 19' 23.73" N, 156° 36' 56.70" W Altitude: 8 meters The Barrow facility was dedicated in July 1997 and chosen because the Arctic is particularly sensitive to climate changes. Barrow is located at the northernmost point in the United States, 330 miles north of the Arctic Circle. Also known as the Top of the World, Barrow is Alaska's largest Eskimo village (home to 4,581 people). Tax revenue from the Slope's oil fields pay for services borough wide, and natural gas is used to heat homes and generate electricity in Barrow. Many residents, however, maintain

453

ARM - Facility News Article  

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

May 15, 2004 [Facility News] May 15, 2004 [Facility News] Mid-latitude Cirrus Cloud Experiment Underway Bookmark and Share NASA's WB-57F research aircraft can carry an instrument payload up to 6,000 lbs. NASA's WB-57F research aircraft can carry an instrument payload up to 6,000 lbs. In late April, scientific collaborators at the National Aeronautics and Space Administration (NASA) carried out two high-altitude flights over the ARM Climate Research Facility Southern Great Plains (SGP) central facility. The purpose of these flights was to use a new suite of cloud property probes on the WB-57F aircraft to more accurately characterize the properties of mid-latitude cirrus clouds-which are composed solely of ice crystals-than has previously been possible. Eight flights over the SGP central facility were originally planned, but the expected cirrus clouds

454

ARM - Facility News Article  

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

30, 2007 [Facility News] 30, 2007 [Facility News] High-Speed Internet Deflects Information Overload Bookmark and Share Covering approximately 143,000 square kilometers in Oklahoma and Kansas, instruments at the various facilities throughout the SGP site generate approximately 27 gigabytes of data every day. Covering approximately 143,000 square kilometers in Oklahoma and Kansas, instruments at the various facilities throughout the SGP site generate approximately 27 gigabytes of data every day. A little more room in the internet link at the ARM Southern Great Plains site is providing needed relief to the crowded lines that keep data flowing from the site. In July 2007, the internet service from the SGP Central Facility was switched to a higher speed (6 megabits) link, increasing the

455

ARM - Facility News Article  

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

, 2009 [Facility News] , 2009 [Facility News] Mobile Facility Begins Marine Cloud Study in the Azores Bookmark and Share Located next to the airport on Graciosa Island, the ARM Mobile Facility's comprehensive and sophisticated instrument suite will obtain atmospheric measurements from the marine boundary layer. Located next to the airport on Graciosa Island, the ARM Mobile Facility's comprehensive and sophisticated instrument suite will obtain atmospheric measurements from the marine boundary layer. Extended deployment will obtain seasonal statistics to improve climate models Today marks the beginning of a 20-month field campaign on Graciosa Island in the Azores to study the seasonal life cycle of marine clouds and how they modulate the global climate system. Sponsored by the U.S. Department

456

BNL | Research Facilities  

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

Brookhaven's Research Facilities Brookhaven's Research Facilities Tools of Discovery Brookhaven National Lab excels at the design, construction, and operation of large-scale, cutting-edge research facilities-some available nowhere else in the world. Each year, thousands of scientists from laboratories, universities, and industries around the world use these facilities to delve into the basic mysteries of physics, chemistry, biology, materials science, energy, and the environment-and develop innovative applications that arise, sometimes at the intersections of these disciplines. construction Brookhaven Lab is noted for the design, construction and operation of large-scale, cutting-edge research facilities that support thousands of scientists worldwide. RHIC tunnel Relativistic Heavy Ion Collider

457

ARM Aerial Facility  

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

govSitesAerial Facility govSitesAerial Facility AAF Information Proposal Process Science (PDF) Baseline Instruments Campaign Instruments Instrumentation Workshop 2008 AAF Fact Sheet G-1 Fact Sheet Images Field Campaigns AAF Campaigns 2007 - UAV Campaigns 1993 - 2006, 2015 Other Aircraft Campaigns 1993 - 2010 AAF Contacts Rickey Petty DOE AAF Program Director Beat Schmid Technical Director ARM Aerial Facility Numerous instrumented aircraft participated in CLASIC, a cross-disciplinary interagency research effort. Numerous instrumented aircraft participated in CLASIC, a cross-disciplinary interagency research effort. As an integral measurement capability of the ARM Climate Research Facility, the ARM Aerial Facility (AAF) provides airborne measurements required to answer science questions proposed by the ARM Science Team and the external

458

ARM - Facility News Article  

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

15, 2010 [Facility News] 15, 2010 [Facility News] Water Vapor Network at SGP Site Goes Offline Bookmark and Share Each of the 24 solar-powered GPS stations streamed data via a wireless network to the SGP Central Facility for data collection and storage. Each of the 24 solar-powered GPS stations streamed data via a wireless network to the SGP Central Facility for data collection and storage. After nearly eleven years, the Single Frequency GPS Water Vapor Network field campaign at the ARM Southern Great Plains (SGP) site came to a close on July 1, 2010. Installed between 1999 and 2000, this network consisted of 24 GPS stations operating within an 8-kilometer radius around the SGP Central Facility near Lamont, Oklahoma. Developed to function as a single instrument, the network simultaneously measured "slant water vapor" in

459

ARM - Facility News Article  

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

30, 2005 [Facility News] 30, 2005 [Facility News] Coastal Clouds Field Campaign Takes Off in July Bookmark and Share The 2-channel NFOV gets careful attention as it joins the suite of instruments collecting data for the ARM Mobile Facility field campaign at Point Reyes National Seashore. The 2-channel NFOV gets careful attention as it joins the suite of instruments collecting data for the ARM Mobile Facility field campaign at Point Reyes National Seashore. Since March 2005, the ARM Mobile Facility (AMF) has been at Point Reyes National Seashore in northern California for the Marine Stratus Radiation, Aerosol, and Drizzle Intensive Operational Period. The goals of this 6-month field campaign are to collect data from cloud/aerosol interactions and to improve understanding of cloud organization that is often associated

460

FACILITY SAFETY (FS)  

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

FACILITY SAFETY (FS) FACILITY SAFETY (FS) OBJECTIVE FS.1 - (Core Requirement 7) Facility safety documentation in support of SN process operations,is in place and has been implemented that describes the safety envelope of the facility. The, safety documentation should characterize the hazards/risks associated with the facility and should, identify preventive and mitigating measures (e.g., systems, procedures, and administrative, controls) that protect workers and the public from those hazards/risks. (Old Core Requirement 4) Criteria 1. A DSA has been prepared by FWENC, approved by DOE, and implemented to reflect the SN process operations in the WPF. (10 CFR 830.200, DOE-STD-3009-94) 2. A configuration control program is in place and functioning such that the DSA is

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While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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461

ARM - Facility News Article  

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

7, 2009 [Facility News] 7, 2009 [Facility News] Town Hall Meeting at AGU 2009 Fall Meeting Bookmark and Share ARM Climate Research Facility - New Measurement Capabilities for Climate Research Thursday, December 17, 6:15-7:15 pm, Moscone West Room 2002 American Recovery and Reinvestment Act American Recovery and Reinvestment Act Scientists from around the world use data from the ARM Climate Research Facility to study the interactions between clouds, aerosol and radiation. Through the American Recovery and Reinvestment Act of 2009, the DOE Office of Science received $1.2 billion, with $60 million allocated to the ARM Climate Research Facility. With these funds, ARM will purchase and deploy dual-frequency scanning cloud radars to all the ARM sites, enhance several sites with precipitation radars and energy flux measurement capabilities,

462

Fate of neptunium in an anaerobic, methanogenic microcosm.  

Science Conference Proceedings (OSTI)

Neptunium is found predominantly as Np(IV) in reducing environments, but Np(V) in aerobic environments. However, currently it is not known how the interplay between biotic and abiotic processes affects Np redox speciation in the environment. In order to evaluate the effect of anaerobic microbial activity on the fate of Np in natural systems, Np(V) was added to a microcosminoculated with anaerobic sediments from a metal-contaminated fresh water lake. The consortium included metal-reducing, sulfate-reducing, and methanogenic microorganisms, and acetate was supplied as the only exogenous substrate. Addition of more than 10{sup {minus}5} M Np did not inhibit methane production. Total Np volubility in the active microcosm, as well as in sterilized control samples, decreased by nearly two orders of magnitude. A combination of analytical techniques, including VIS-NIR absorption spectroscopy and XANES, identified Np(IV) as the oxidation state associated with the sediments. The similar results from the active microcosm and the abiotic controls suggest that microbian y produced Mn(II/HI) and Fe(II) may serve as electron donors for Np reduction.

Banaszak, J. E.

1998-12-21T23:59:59.000Z

463

Anaerobic microbial dissolution of lead and production of organic acids  

DOE Patents (OSTI)

The present invention relates to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rate of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 .mu.moles of lead as lead oxide was 0.042 .mu.moles ml.sup.-1 hr.sup.-1. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids.

Francis, Arokiasamy J. (Middle Island, NY); Dodge, Cleveland (Wading River, NY); Chendrayan, Krishnachetty (Coimbatore Tamil Nadu, IN); Quinby, Helen L. (Cambridge, MD)

1988-01-01T23:59:59.000Z

464

Anaerobic microbial dissolution of lead and production of organic acids  

DOE Patents (OSTI)

The present invention related to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rat of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 ..mu..moles of lead as lead oxide was 0.042 ..mu..moles m1/sup /-/1/ hr/sup /-/1/. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of the strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids. 4 figs., 3 tabs.

Francis, A.J.; Dodge, C.; Chendrayan, K.; Quinby, H.L.

1987-04-16T23:59:59.000Z

465

Calibration Facilities | Department of Energy  

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

Calibration Facilities Calibration Facilities Calibration Facilities Calibration Facilities Calibration Facilities Calibration Facilities Calibration Facilities DOE supports the development, standardization, and maintenance of calibration facilities for environmental radiation sensors. Radiation standards at the facilities are primarily used to calibrate portable surface gamma-ray survey meters and borehole logging instruments used for uranium and other mineral exploration and remedial action measurements. Standards for calibrating borehole fission neutron devices are also available, but are used infrequently. Radiation standards are constructed of concrete with elevated, uniform concentrations of naturally occurring potassium, uranium, and/or thorium. Pad standards have large, flat surfaces suitable for calibration

466

RCRA facility assessments  

SciTech Connect

The Hazardous and Solid Waste Amendments of 1984 (HSWA) broadened the authorities of the Resource Conservation and Recovery Act (RCRA) by requiring corrective action for releases of hazardous wastes and hazardous constituents at treatment, storage, and disposal (TSD) facilities. The goal of the corrective action process is to ensure the remediation of hazardous waste and hazardous constituent releases associated with TSD facilities. Under Section 3004(u) of RCRA, operating permits issued to TSD facilities must address corrective actions for all releases of hazardous waste and hazardous constituents from any solid waste management unit (SWMU) regardless of when the waste was placed in such unit. Under RCRA Section 3008(h), the Environmental Protection Agency (EPA) may issue administrative orders to compel corrective action at facilities authorized to operate under RCRA Section 3005(e) (i.e., interim status facilities). The process of implementing the Corrective Action program involves the following, in order of implementation; (1) RCRA Facility Assessment (RFA); (2) RCRA Facility Investigation (RFI); (3) the Corrective Measures Study (CMS); and (4) Corrective Measures Implementation (CMI). The RFA serves to identify and evaluate SWMUs with respect to releases of hazardous wastes and hazardous constituents, and to eliminate from further consideration SWMUs that do not pose a threat to human health or the environment. This Information Brief will discuss issues concerning the RFA process.

NONE

1994-07-01T23:59:59.000Z

467

METC Combustion Research Facility  

SciTech Connect

The objective of the Morgantown Energy Technology Center (METC) high pressure combustion facility is to provide a mid-scale facility for combustion and cleanup research to support DOE`s advanced gas turbine, pressurized, fluidized-bed combustion, and hot gas cleanup programs. The facility is intended to fill a gap between lab scale facilities typical of universities and large scale combustion/turbine test facilities typical of turbine manufacturers. The facility is now available to industry and university partners through cooperative programs with METC. High pressure combustion research is also important to other DOE programs. Integrated gasification combined cycle (IGCC) systems and second-generation, pressurized, fluidized-bed combustion (PFBC) systems use gas turbines/electric generators as primary power generators. The turbine combustors play an important role in achieving high efficiency and low emissions in these novel systems. These systems use a coal-derived fuel gas as fuel for the turbine combustor. The METC facility is designed to support coal fuel gas-fired combustors as well as the natural gas fired combustor used in the advanced turbine program.

Halow, J.S.; Maloney, D.J.; Richards, G.A.

1993-11-01T23:59:59.000Z

468

Department of Residential Facilities Facilities Student Employment Office  

E-Print Network (OSTI)

Department of Residential Facilities Facilities Student Employment Office 1205E Leonardtown Service Updated 3/09 #12;EMPLOYMENT HISTORY Have you worked for Residential Facilities before? Yes No If so list

Milchberg, Howard

469

Higgs Boson Digest and Discussion By Tony O'Hagan  

E-Print Network (OSTI)

Higgs Boson ­ Digest and Discussion By Tony O'Hagan Introduction On July 10th 2012, I posted to consult this list in search of answers. We've heard a lot about the Higgs boson. The news reports say like (in the sense of having some of the right characteristics of) the elusive Higgs boson

O'Hagan, Tony

470

ARM - Facility News Article  

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

July 10, 2012 [Facility News] July 10, 2012 [Facility News] Collaborations in Atmospheric Science and Observations Discussed in Germany Bookmark and Share Susanne Crewell (center) is flanked by Jimmy Voyles (left) and Shaocheng Xie (right) during a tour of the Research Center Juelich and the university's Jülich ObservatorY for Cloud Evolution (JOYCE) site. Crewell explained that JOYCE, like ARM facilities, was designed for long-term continuous measurements of cloud, radiation, boundary humidity, and precipitation, using active and passive remote sensing instruments. Susanne Crewell (center) is flanked by Jimmy Voyles (left) and Shaocheng Xie (right) during a tour of the Research Center Juelich and the

471

Supercomputing | Facilities | ORNL  

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

Facilities and Capabilities Facilities and Capabilities Primary Systems Infrastructure High Performance Storage Supercomputing and Computation Home | Science & Discovery | Supercomputing and Computation | Facilities and Capabilities | High Performance Storage SHARE High Performance Storage and Archival Systems To meet the needs of ORNL's diverse computational platforms, a shared parallel file system capable of meeting the performance and scalability require-ments of these platforms has been successfully deployed. This shared file system, based on Lustre, Data Direct Networks (DDN), and Infini-Band technologies, is known as Spider and provides centralized access to petascale datasets from all major on-site computational platforms. Delivering more than 240 GB/s of aggregate performance,

472

TRITIUM EXTRACTION FACILITY ALARA  

SciTech Connect

The primary mission of the Tritium Extraction Facility (TEF) is to extract tritium from tritium producing burnable absorber rods (TPBARs) that have been irradiated in a commercial light water reactor and to deliver tritium-containing gas to the Savannah River Site Facility 233-H. The tritium extraction segment provides the capability to deliver three (3) kilograms per year to the nation's nuclear weapons stockpile. The TEF includes processes, equipment and facilities capable of production-scale extraction of tritium while minimizing personnel radiation exposure, environmental releases, and waste generation.

Joye, BROTHERTON

2005-04-19T23:59:59.000Z

473

ARM - Facility News Article  

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

9, 2013 [Facility News] 9, 2013 [Facility News] ARM Facility Shares Return on Science Investments Bookmark and Share The Bolger Center-a former U.S. Postal Service training center-hosted the fourth annual ASR Science Team Meeting in March. The Bolger Center-a former U.S. Postal Service training center-hosted the fourth annual ASR Science Team Meeting in March. To quote Ben Franklin, "If a man empties his purse into his head, no man can take it away from him. An investment in knowledge always pays the best interest." ARM Climate Research Facility staff who attended the fourth annual Atmospheric System Research (ASR) Science Team Meeting in April received a healthy dose of interest in March! With over 350 attendees presenting nearly 250 posters, the wealth of atmospheric climate science knowledge

474

ARM - Facility News Article  

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

May 20, 2011 [Facility News] May 20, 2011 [Facility News] From Snow to Sand; Mobile Facility Headed to the Maldives Bookmark and Share AMF2 operations team members pack up the 3-channel microwave radiometer at the STORMVEX valley floor site in Steamboat Springs, Colorado. AMF2 operations team members pack up the 3-channel microwave radiometer at the STORMVEX valley floor site in Steamboat Springs, Colorado. After spending six very snowy months at Steamboat Springs, Colorado, the second ARM Mobile Facility (AMF2) is switching gears and heading to the tropical climes of the Maldives in the Indian Ocean. In mid-April, the Storm Peak Lab Cloud Property Validation Experiment (STORMVEX) came to a close, ending the final chapter of the AMF2's maiden deployment. After packing up the instruments and data systems, the AMF2 team is now preparing

475

ARM - Facility News Article  

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

Satellite Service Conserves Cash Satellite Service Conserves Cash Bookmark and Share In April, operations personnel completed a series of cost-saving data communication changes at the ARM Climate Research Facility Southern Great Plains (SGP) locale. The T-1 telephone lines at the four SGP boundary facilities were replaced with satellite dish technology. This change still allows large data sets to be transferred at acceptable bandwidth but at substantial savings. Inexpensive satellite services now meet data transmission needs at the SGP boundary facilities. Inexpensive satellite services now meet data transmission needs at the SGP boundary facilities. Huge amounts of data are collected daily by SGP site instruments. These data must be transmitted rapidly and reliably from remote measurement

476

ARM - Facility News Article  

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

2, 2012 [Data Announcements, Facility News] 2, 2012 [Data Announcements, Facility News] Toolkit for ARM Radar Data Previewed at Workshop Bookmark and Share This data plot shows the height and north/south displacement of rain relative to the ARM Southern Great Plains site's Central Facility in Oklahoma. This retrieval used information from all three X-band scanning ARM precipitation radars at the SGP site and was performed using tools in the Python-ARM radar toolkit. Click on image to enlarge. This data plot shows the height and north/south displacement of rain relative to the ARM Southern Great Plains site's Central Facility in Oklahoma. This retrieval used information from all three X-band scanning ARM precipitation radars at the SGP site and was performed using tools in the Python-ARM radar toolkit. Click on image to enlarge.

477

ARM - Facility News Article  

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

March 31, 2009 [Facility News] March 31, 2009 [Facility News] New Sensors Installed for Cloud Radar Calibration at North Slope Bookmark and Share Located on the roof of the Guest Instrument Facility at the ARM Barrow site are the PARSIVEL (left) and POSS (right) instruments. Located on the roof of the Guest Instrument Facility at the ARM Barrow site are the PARSIVEL (left) and POSS (right) instruments. Cloud radars at the ARM sites provide important information about cloud properties and continue to evolve in providing climate researchers more complex data. This creates a greater need to know the absolute calibration of the radar reflectivity measurement. However, the large and immobile antenna for the millimeter wavelength cloud radar (MMCR) is impossible to point directly at a calibration target. At the ARM North Slope of Alaska

478

ARM - Facility News Article  

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

May 15, 2006 [Facility News] May 15, 2006 [Facility News] New Micropulse Lidars to Replace Old Ones; Deployments Begin at SGP Bookmark and Share A representative from Sigma Space Corporation demonstrates the operation of the new micropulse lidar to ARM instrument mentors and site operations technicians. A representative from Sigma Space Corporation demonstrates the operation of the new micropulse lidar to ARM instrument mentors and site operations technicians. On May 3, the first of seven new and upgraded micropulse lidars (MPLs) was deployed at the ARM Southern Great Plains (SGP) site's Central Facility. These seven identical systems (including one spare) will replace the existing MPLs deployed at facilities throughout the SGP site and include new polarization capability. The MPLs provide critical backscatter

479

Nuclear Facility Design  

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

Design Design FUNCTIONAL AREA GOAL: Headquarters and Field organizations and their contractors ensure that nuclear facilities are designed to assure adequate protection for the public, workers, and the environment from nuclear hazards. REQUIREMENTS: ï‚· 10 CFR 830.120 ï‚· 10 CFR 830 subpart B ï‚· DOE O 413.3 ï‚· DOE O 420.1B ï‚· DOE O 414.1C ï‚· DOE O 226.1 ï‚· DOE M 426.1 ï‚· DEAR 970-5404-2 Guidance: ï‚· DOE G 420.1-1 ï‚· Project Management Practices, Integrated Quality ( Rev E, June 2003) ï‚· DOE Implementation Plan for DNSB Recommendation 2004-2 Performance Objective 1: Contractor Program Documentation Contracts between and the contractors who operate nuclear facilities contain adequate requirements concerning the conduct of nuclear facility safety design for nuclear facility capital projects and major modifications and the

480

ARM - Facility News Article  

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

May 22, 2008 Facility News ARM Staff Changes to Note Bookmark and Share Dr. Martin Stuefer, newest member of NSA team, and his plane. Dr. Martin Stuefer, newest member of NSA...

Note: This page contains sample records for the topic "anaerobic digester facility" 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

ARM - Facility News Article  

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

27, 2009 [Facility News] 27, 2009 [Facility News] Arrival of Recovery Act Funds Sets Wheels In Motion Bookmark and Share So that people can easily recognize the effects of the American Recovery and Reinvestment Act, all projects will be stamped with the Recovery Act logo. So that people can easily recognize the effects of the American Recovery and Reinvestment Act, all projects will be stamped with the Recovery Act logo. Through the American Recovery and Reinvestment Act of 2009 (aka stimulus), the Department of Energy's Office of Science received $1.2 billion. In late May, DOE released approximately $54 million-90 percent-of the $60 million allocated to the ARM Climate Research Facility. During the next 18 months, the ARM Climate Research Facility will purchase and deploy dual-frequency scanning cloud radars to all the ARM sites, enhance several

482

ARM - Facility News Article  

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

28, 2005 [Facility News] 28, 2005 [Facility News] Readiness of New Lidar Evaluated at Southern Great Plains Site Bookmark and Share Aircraft for the Boundary Layer CO2 Intensive Operational Period will fly over the SGP Central Facility using both spirals and racetrack patterns. Data will be collected under a variety of cloud and meteorological conditions. Aircraft for the Boundary Layer CO2 Intensive Operational Period will fly over the SGP Central Facility using both spirals and racetrack patterns. Data will be collected under a variety of cloud and meteorological conditions. As the focus of the Boundary Layer Carbon Dioxide (CO2) Intensive Operational Period (IOP) starting in March, science collaborators at ITT Industries and the National Aeronautics and Space Administration (NASA)

483

ARM - Facility News Article  

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

Annual Quality Improvement Inspections Take Place Annual Quality Improvement Inspections Take Place Bookmark and Share During the SGP site audit conducted in April 2005, a member of the Continuous Quality Improvement Program team is accompanied by a local jackrabbit at the Ringwood Extended Facility. During the SGP site audit conducted in April 2005, a member of the Continuous Quality Improvement Program team is accompanied by a local jackrabbit at the Ringwood Extended Facility. The Continuous Quality Improvement Program (CQIP) implemented by the ARM Program in 1998 requires annual audits and inspection visits to each of the ARM Climate Research Facility Southern Great Plains (SGP) site's 27 field facilities located in Oklahoma and Kansas. A small team of scientists and engineers conduct the inspections each year to evaluate the field

484

PNNL: About PNNL - Facilities  

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

Scientific Facilities Scientific Facilities At PNNL, we offer scientific researchers access to unique equipment housed in state-of-the-art facilities as well as onsite experts to help visiting researchers take advantage of and make best use of the capabilities. You also have the opportunity to collaborate with our world-renowned scientists and engineers who can help you advance your scientific research and publish your results. Take a virtual tour of some of our laboratories. William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) EMSL EMSL is a U.S. Department of Energy (DOE) national user facility currently shared and used by researchers from around the world. Research at EMSL focuses principally on developing a molecular-level understanding of the physical, chemical, and biological processes that underlie the most

485

ARM - Facility News Article  

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

New Backup Software Improves Processing, Reliability at Data Management New Backup Software Improves Processing, Reliability at Data Management Facility Bookmark and Share Real-time data from all three of the ARM Climate Research Facility sites (North Slope of Alaska, Southern Great Plains, and Tropical Western Pacific) are collected and processed at the ARM Climate Research Facility Data Management Facility (DMF) each day. Processing involves the application of algorithms for performing simple averaging routines, qualitative comparisons, or more complicated experimental calculations. With continual advances in computer technology, keeping up with the volume and pace of incoming data is a daunting challenge. And because the remote sites do not provide backups, reliable backups of these data at the DMF are critical. In addition, significant numbers of value-added datasets are

486

ARM - Facility News Article  

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

Mobile Facility Beta Testing Complete; System Headed to California Seashore Mobile Facility Beta Testing Complete; System Headed to California Seashore Bookmark and Share A key addition to the ARM Climate Research Facility scientific infrastructure is ready to roll...literally. In February, the ARM Mobile Facility (AMF) is being packed up and shipped from Richland, Washington, to the Point Reyes National Seashore north of San Francisco, California. There, it will be reassembled in preparation for its first deployment as part of a 6-month experiment to study the microphysical characteristics of marine stratus clouds, and in particular, marine stratus drizzle processes. Throughout the deployment, the AMF will accommodate aerosol observing equipment for National Oceanic and Atmospheric Administration (NOAA) researchers co-sponsored by ARM and the DOE Aerosol Science Program.

487

ARM - Facility News Article  

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

Review of ARM Infrastructure Completed Review of ARM Infrastructure Completed Bookmark and Share In May, the Department of Energy's Biological and Environmental Research Advisory Committee (BERAC) published findings and recommendations from their assessment of the effectiveness of ARM Climate Research Facility as a national scientific user facility. Based on a review of total user requests, the BERAC concluded that ARM was being effectively used by the broader scientific community, not just the ARM Program. They also stated that cost cutting measures had achieved the desired efficiency goals, but further cuts could impair the Facility's operations. The subcommittee reinforced the importance of the scientific impacts of this facility (including publications), and the value it has had for the international