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


1

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

Broader source: Energy.gov (indexed) [DOE]

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

2

Greenhouse Gas Emission Reductions from Domestic Anaerobic Digesters Linked with Sustainable Sanitation in Rural China  

Science Journals Connector (OSTI)

Greenhouse Gas Emission Reductions from Domestic Anaerobic Digesters Linked with Sustainable Sanitation in Rural China ... (3) A key technology that may permit a switch from solid fuels to cleaner gaseous fuels in rural China is anaerobic digestion, where organic human and animal wastes are digested under anaerobic conditions generating biogas, composed primarily of methane (CH4), which can be sequestered and burned for cooking, heating, and lighting. ...

Radhika Dhingra; Erick R. Christensen; Yang Liu; Bo Zhong; Chang-Fu Wu; Michael G. Yost; Justin V. Remais

2011-02-24T23:59:59.000Z

3

Anaerobic Digestion of Algae  

Science Journals Connector (OSTI)

...would be desirable to remove the algae from the lagoon effluent. Under...anaerobic digestion. Digestion of algae to provide a source of fuel is an attractive possibility...through the anaerobic digestion of algae to produce methane. Energy is...

C. G. Golueke; W. J. Oswald; H. B. Gotaas

1957-01-01T23:59:59.000Z

4

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

Broader source: Energy.gov (indexed) [DOE]

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

5

Anaerobic Digestion Basics | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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

6

Nitrogen availability and indirect measurements of greenhouse gas emissions from aerobic and anaerobic biowaste digestates applied to agricultural soils  

SciTech Connect (OSTI)

Highlights: • Nitrogen release in digestate-amended soil depends on the digestate type. • Overall N release is modulated by digestate mineral and mineralisable N contents. • Microbial immobilisation does not influence overall release of digestate N in soil. • Digestate physical properties and soil type interact to affect overall N recovery. • High labile C inputs in digestate may promote denitrification in fine-textured soil. - Abstract: Recycling biowaste digestates on agricultural land diverts biodegradable waste from landfill disposal and represents a sustainable source of nutrients and organic matter (OM) to improve soil for crop production. However, the dynamics of nitrogen (N) release from these organic N sources must be determined to optimise their fertiliser value and management. This laboratory incubation experiment examined the effects of digestate type (aerobic and anaerobic), waste type (industrial, agricultural and municipal solid waste or sewage sludge) and soil type (sandy loam, sandy silt loam and silty clay) on N availability in digestate-amended soils and also quantified the extent and significance of the immobilisation of N within the soil microbial biomass, as a possible regulatory mechanism of N release. The digestate types examined included: dewatered, anaerobically digested biosolids (DMAD); dewatered, anaerobic mesophilic digestate from the organic fraction of municipal solid waste (DMADMSW); liquid, anaerobic co-digestate of food and animal slurry (LcoMAD) and liquid, thermophilic aerobic digestate of food waste (LTAD). Ammonium chloride (NH{sub 4}Cl) was included as a reference treatment for mineral N. After 48 days, the final, maximum net recoveries of mineral N relative to the total N (TN) addition in the different digestates and unamended control treatments were in the decreasing order: LcoMAD, 68%; LTAD, 37%, DMAD, 20%; and DMADMSW, 11%. A transient increase in microbial biomass N (MBN) was observed with LTAD application, indicating greater microbial activity in amended soil and reflecting the lower stability of this OM source, compared to the other, anaerobic digestate types, which showed no consistent effects on MBN compared to the control. Thus, the overall net release of digestate N in different soil types was not regulated by N transfer into the soil microbial biomass, but was determined primarily by digestate properties and the capacity of the soil type to process and turnover digestate N. In contrast to the sandy soil types, where nitrate (NO{sub 3}{sup -}) concentrations increased during incubation, there was an absence of NO{sub 3}{sup -} accumulation in the silty clay soil amended with LTAD and DMADMSW. This provided indirect evidence for denitrification activity and the gaseous loss of N, and the associated increased risk of greenhouse gas emissions under certain conditions of labile C supply and/or digestate physical structure in fine-textured soil types. The significance and influence of the interaction between soil type and digestate stability and physical properties on denitrification processes in digestate-amended soils require urgent investigation to ensure management practices are appropriate to minimise greenhouse gas emissions from land applied biowastes.

Rigby, H.; Smith, S.R., E-mail: s.r.smith@imperial.ac.uk

2013-12-15T23:59:59.000Z

7

The Anaerobic Digestion of Organic  

E-Print Network [OSTI]

, pursuing alternative and renewable energy has become imperative from both practical and ethical standpoints production is just one of the many renewable energy alternatives out there. Defined as the digestion of Anaerobic Digestion 3.1. Municipal Waste Management 3.2. Climate Change Mitigation 3.2.1. Untreated

Iglesia, Enrique

8

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

9

Commercialization of Anaerobic Contact Process for Anaerobic Digestion of Algae.  

E-Print Network [OSTI]

??The commercialization of anaerobic contact process for the digestion of algal biomass has been shown to be feasible on a technical and economic basis. The… (more)

Andlay, Gunjan

2010-01-01T23:59:59.000Z

10

Kinetic modeling and experimentation of anaerobic digestion  

E-Print Network [OSTI]

Anaerobic digesters convert organic waste (agricultural and food waste, animal or human manure, and other organic waste), into energy (in the form of biogas or electricity). An added benefit to bio-digestion is a leftover ...

Rea, Jonathan (Jonathan E.)

2014-01-01T23:59:59.000Z

11

Market Digest: Natural Gas  

Reports and Publications (EIA)

The Energy Information Administration's Natural Gas Market Digest provides information and analyses on all aspects of natural gas markets.

2014-01-01T23:59:59.000Z

12

Halophytic microalgae as a feedstock for anaerobic digestion  

Science Journals Connector (OSTI)

Abstract Anaerobic digestion can be employed to produce methane biogas from residual microalgae biomass derived from either a lipid based biofuel process or wastewater treatment. There is interest in using halophytic microalgae for biofuel production due to their potential robustness in large-scale open pond production. The anaerobic digestion of halophytic microalgae biomass would however be challenging due to the high salinities not typically experienced in anaerobic digestion scenarios. Halophytic microalgae biomass as a potential substrate feedstock for anaerobic digestion would have salinities in excess of 3.5%, which is typically found in marine environments. To investigate the anaerobic digestion of halophytic microalgae issue the first stage of the reported study focuses on the changes undertaken in the bacterial community associated with the anaerobic digestion of piggery effluent under increasing saline conditions, with the aim of establishing a saline tolerant anaerobic digestion inoculum capable of digesting feedstocks under high salinity conditions. Favourable results from this inoculum development study allowed the investigation of anaerobic digestion of halophytic microalgae. The reported results demonstrate that a saline tolerant inoculum was maintained. Subsequent denaturing gradient gel electrophoresis (DGGE) fingerprinting of the resulting halophytic bacterial community showed several halophytic methanogens. The inoculum was used to digest the halophytic microalgae. The resulting gas data showed that biogas production of 358 ± 53 mL/g of volatile solids (VS) with a methane content of 54 ± 4.3% methane was achieved at 7% salinity. The volume of biogas produced on a wet weight microalgae biomass basis was 122 ± 26 and 175 ± 25 mL/g of halophytic microalgae biomass respectively (74 ± 2.8 wt.% moisture content). The conversion of carbon in the feedstock to methane achieved an efficiency of 26.4% and 46.6% at 3.4% and 7% salinity respectively. A halo-tolerant anaerobic digestion microbial community could be further optimized to complete the loop with nutrient recycle required with the production of halophytic microalgae based biofuels and potentially, hypersaline wastewater treatment applications.

Andrew Ward; Andy Ball; David Lewis

2015-01-01T23:59:59.000Z

13

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

SciTech Connect (OSTI)

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

14

Biomass Anaerobic Digestion Facilities and Biomass Gasification Facilities (Indiana)  

Broader source: Energy.gov [DOE]

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

15

E-Print Network 3.0 - anaerobic sludge digestion Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

digestion Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic sludge digestion...

16

E-Print Network 3.0 - anaerobic sludge digester Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

digester Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic sludge digester...

17

Community-Scale Anaerobic Digesters Webinar | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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

18

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

19

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.

20

Anaerobic Digestion Optimization for Enhanced Renewable Biomethane Production.  

E-Print Network [OSTI]

??The scope of this research project was to operate suspended growth, continuous stirred tank reactor (CSTR) anaerobic digesters at the bench-scale level to evaluate improved… (more)

Stover, Ted Ross

2011-01-01T23:59:59.000Z

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

Biomethane production by anaerobic digestion of organic waste  

Science Journals Connector (OSTI)

Abstract Anaerobic Digestion (AD) is a biological process that takes place naturally when bacteria break down organic matter in environments with or without oxygen. Controlled anaerobic digestion of organic waste in enclosed landfill will generate methane. Almost any organic material can be processed with AD, including waste paper and cardboard (of a grade that is too low to recycle because of food contamination), grass clippings, leftover food, industrial effluents, sewage and animal waste. AD produces biogas which is comprised of around 60% methane (CH4) and 40% carbon dioxide (CO2). This biogas can be used to generate heat or electricity and/or can be used as a vehicular fuel. If the intended use is for power generation the biogas must be scrubbed to remove a number of impurities. After conditioning the biogas can be used for onsite power generation, to heat homes or can be added to the national natural gas grid. In recent years several research groups have shown the possibility of upgrading the biogas for biomethane production [1]. This study will show the feasibility of integrating anaerobic digestion plant with onsite polymeric membrane purification system for conditioned biomethane production.

A. Molino; F. Nanna; Y. Ding; B. Bikson; G. Braccio

2013-01-01T23:59:59.000Z

22

E-Print Network 3.0 - anaerobic digestion Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

23

E-Print Network 3.0 - anaerobic digestion analysis Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

24

E-Print Network 3.0 - anaerobic digesters current Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

25

E-Print Network 3.0 - anaerobic digestion usa Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

26

E-Print Network 3.0 - anaerobic digestion final Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

27

E-Print Network 3.0 - anaerobic digestion performance Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

28

E-Print Network 3.0 - anaerobically digested cattle Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

29

E-Print Network 3.0 - anaerobic digestion heat Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

30

E-Print Network 3.0 - anaerobic digesters treating Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

31

E-Print Network 3.0 - anaerobic digester treating Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

32

E-Print Network 3.0 - anaerobic thermophilic digestion Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

33

E-Print Network 3.0 - anaerobic digester performance Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

34

E-Print Network 3.0 - anaerobic digestion model Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management of the anaerobic digestion...

35

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

Broader source: Energy.gov (indexed) [DOE]

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.

36

Design of an anaerobic digester in Quebec, Canada  

E-Print Network [OSTI]

.In response to the future Quebec, Canada regulations prohibiting landfilling of organic matter by 2020, EBI, a waste management company located near Montreal is considering constructing an anaerobic digester. This thesis ...

Bouaziz, Alexandre N. (Alexandre Nathanel)

2014-01-01T23:59:59.000Z

37

April 16, 2013 Webinar: Community-Scale Anaerobic Digesters  

Broader source: Energy.gov [DOE]

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...

38

Anaerobic batch co-digestion of Spartina alterniflora and potato  

Science Journals Connector (OSTI)

The potential of mesophilic anaerobic batch digestion for the treatment of Spartina alterniflora, an invasive species widely distributed along Chinese coastlines, through co-digestion with readily biodegradable organics has been assessed. The accumulative biogas yield from S. alterniflora alone was 251 ml/g Total Solid (TS) (at 35°C), at TS of 6%, co-digestion with 80% of S. alterniflora and 20% of potato representing 6% of TS, gave a biogas yield of 383 ml/g TS (at 35°C). This is an increase of 52.5% compared with that obtained from digestion of pure S. alterniflora. In conclusion, using readily biodegradable potato as co-substrate of S. alterniflora can increase its anaerobic digestibility and biogas yield.

Jihong Li; Shiguan Yang; Zheng Zheng; Huamin Song; Zhuo Meng

2011-01-01T23:59:59.000Z

39

Anaerobic Digestion and Combined Heat and Power Study  

SciTech Connect (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; Rob Taylor; Grant Davies

2011-12-30T23:59:59.000Z

40

E-Print Network 3.0 - anaerobic digestion technology Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

technology on livestock farms... dioxide (EPA AgStar 2006). Benefits and Challenges of Biogas Technology Anaerobic digestion can convert... digester. Resources which ... Source:...

Note: This page contains sample records for the topic "anaerobic digester gas" 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 of Food Waste?recycling Wastewater  

Science Journals Connector (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 the total carbohydrate reduction efficiency and volatile fatty acid production dramatically decreased when acidogenic HRT was wastewater as feedstock.

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

2010-01-01T23:59:59.000Z

42

Community Renewable Energy Success Stories: Community-Scale Anaerobic Digesters (text version)  

Office of Energy Efficiency and Renewable Energy (EERE)

Below is the text version of the webinar titled "Community-Scale Anaerobic Digesters," originally presented on April 16, 2013.

43

The Study of Two Stages Anaerobic Digestion Application and Suitable Bio-Film as an Effort to Improve Bio-Gas Productivity from Jatropha Curcas Linn Capsule Husk  

Science Journals Connector (OSTI)

Abstract The conversion program from kerosene to LPG in Indonesia has positive impact on saving budget of fuel subsidized. However, the program does not only depend on LPG supply from overseas but also inadvisable related to the LPG availability in the world. Bio-gas is renewable energy which categorized as modern cooking oil. This gaseous bio- fuel is feasible in Indonesia due to plenty of bio-gas resources such as bio-mass and waste, simple technology, supporting tropical climate on bio-gas process, no food competition on material supply, minimizing global warming, reducing water pollution and producing organic fertilizer. Some series of study are conducted on dried Jatropha curcas Linn. capsule husk (JCL-CH) as bio-gas feedstock. The objective of the study is to create technology for managing JCL integrally according to bio-refinery principle. This paper will present two studies, JCL-CH performance in single stage digester compared with two stages digester in laboratory and palm fiber compared with glass wool as bio-film/bio-carrier in methanogenesis reactor. The studies were conducted in Research Laboratory PT. Bumimas Ekapersada, Bekasi, West Java from March until May 2012. A liter of glass bottle as digester, arranged in Randomized Complete Design, three replications per treatment placed in 32 °C water bath. The bio-gas feedstock was put continuously with Organic Loading Rate – OLR or concentration 1: 12 in single stage compared with 1: 12 and 1: 8 in two stages. The observed parameters were pH, temperature, bio-gas volume, methane concentration, volatile solid and acetic acid concentration. Bio-gas volume was measured by water displacement method and methane concentration was measured by gas chromatography. T-test was used for statistical analysis. The studies showed that two stages digester more efficient since it can increase methane concentration and bio-gas volume/gram VS. The bio-gas volume increase 63.83% in OLR 1: 8. Glass wool was more effective as bio-film carrier compared with palm fiber.

Praptiningsih G. Adinurani; Tony Liwang; Salafudin; Leopold O. Nelwan; Yosephianus Sakri; Satriyo K. Wahono; Roy Hendroko

2013-01-01T23:59:59.000Z

44

Anaerobic Co-Digestion on Dairies in Washington State  

E-Print Network [OSTI]

as food-processing wastes) to increase biogas productivity, improve digester performance, and increase in manure and other feedstock to methane-rich biogas, a source of renewable energy (US-EPA 2006) (Figure 1-EPA 2005; US-EPA 2008). In addition to biogas, AD generates fiber and Figure 1. Overview of anaerobic

Collins, Gary S.

45

Intermediate-scale high-solids anaerobic digestion system operational development  

SciTech Connect (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

46

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 waste (FW) and their mixture (MW) in batch digesters was evaluated under mesophilic conditions. BW waste. Keywords Anaerobic digestion; food waste; brown water; biogas; co-digestion INTRODUCTION

Paris-Sud XI, Université de

47

Sequential anaerobic/anaerobic digestion for enhanced sludge stabilization: comparison of the process performance for mixed and waste sludge  

Science Journals Connector (OSTI)

Sequential anaerobic-aerobic digestion has been demonstrated as a promising alternative for enhanced sludge stabilization. In this paper, a feasibility ... the sequential digestion applied to real waste activated...

M. Concetta Tomei; Nicola Antonello Carozza

2014-06-01T23:59:59.000Z

48

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

Broader source: Energy.gov (indexed) [DOE]

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

49

Batch load anaerobic digestion of dairy manure  

E-Print Network [OSTI]

flask. Influent was added through a funnel in a rubber stopper in the top of the flask. The flask was kept in a water bath to maintain the optimum temperature of 32 C, 0 A liquid displacement system was used to collect the biogas and measure.... Biogas production was measured with a Rockwell No, 175 S Test Meter. Electrical energy input to the system was measured with a watt-hour meter. The energy required for digester heating was determined by the time required to expend the propane in sn...

Egg, Richard P

2012-06-07T23:59:59.000Z

50

Electricity Production from Anaerobic Digestion of Household Organic Waste in Ontario: Techno-Economic and GHG Emission Analyses  

Science Journals Connector (OSTI)

Electricity Production from Anaerobic Digestion of Household Organic Waste in Ontario: Techno-Economic and GHG Emission Analyses ... The life cycle greenhouse gas (GHG) emissions and economics of electricity generation through anaerobic digestion (AD) of household source-separated organic waste (HSSOW) are investigated within the FiT program. ... AD can potentially provide considerable GHG emission reductions (up to 1 t CO2eq/t HSSOW) at relatively low to moderate cost (-$35 to 160/t CO2eq) by displacing fossil electricity and preventing the emission of landfill gas. ...

David Sanscartier; Heather L. MacLean; Bradley Saville

2011-12-14T23:59:59.000Z

51

E-Print Network 3.0 - anaerobic filter ufaf-subsurface Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and power application. All four DG systems were operated on-site using either landfill gas or anaerobic... . Common opportunity fuels are anaerobic digester gas, landfill gas,...

52

E-Print Network 3.0 - anaerobic digestion concept Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to methane. The anaerobic digestion consortium was introduced to high... M, and a biogas composition of 55%-60% methane. INTRODUCTION Economic evaluations of ... Source:...

53

E-Print Network 3.0 - anaerobic digestion program Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic matter and the management ... Source: Liskiewicz,...

54

E-Print Network 3.0 - anaerobic closed digester Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to methane. The anaerobic digestion consortium was introduced to high... M, and a biogas composition of 55%-60% methane. INTRODUCTION Economic evaluations of ... Source:...

55

E-Print Network 3.0 - anaerobically digested sludge Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic ... Source: Liskiewicz, Maciej - Institut fr...

56

E-Print Network 3.0 - anaerobic digestion role Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Implementation of Summary: ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

57

E-Print Network 3.0 - anaerobic digester sludge Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... on the source of the organic ... Source: Liskiewicz, Maciej - Institut fr...

58

E-Print Network 3.0 - anaerobically digested municipal Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This publication provides a general overview of anaero- Summary: . Scrubbing the biogas with iron-impregnated wood chips has been used in anaerobic digesters in municipal......

59

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

Office of Energy Efficiency and Renewable Energy (EERE)

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

60

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

Broader source: Energy.gov [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...

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

Optimization of solid state anaerobic digestion of the OFMSW by digestate recirculation: A new approach  

Science Journals Connector (OSTI)

Abstract Dry anaerobic digestion (AD) of OFMSW was optimized in order to produce biogas avoiding the use of solid inoculum. Doing so the dry AD was performed irrigating the solid waste with liquid digestate (flow rate of 1:1.18–1:0.9 w/w waste/digestate; 21 d of hydraulic retention time – HRT) in order to remove fermentation products inhibiting AD process. Results indicated that a high hydrolysis rate of organic matter (OM) and partial biogas production were obtained directly during the dry AD. Hydrolysate OM was removed from digester by the percolate flow and it was subsequently used to feed a liquid anaerobic digester. During dry AD a total loss of 36.9% of total solids was recorded. Methane balance indicated that 18.4% of potential methane can be produced during dry AD and 49.7% by the percolate. Nevertheless results obtained for liquid AD digestion indicated that only 20.4% and 25.7% of potential producible methane was generated by adopting 15 and 20 days of HRT, probably due to the AD inhibition due to high presence of toxic ammonia forms in the liquid medium.

Pognani Michele; D’Imporzano Giuliana; Minetti Carlo; Scotti Sergio; Adani Fabrizio

2014-01-01T23:59:59.000Z

62

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

Broader source: Energy.gov (indexed) [DOE]

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

63

Application of dried anaerobic digested sewage sludge as phenol biosorbent  

Science Journals Connector (OSTI)

Untreated anaerobically digested sewage sludge was used for the first time as a biosorbent for removing phenol from aqueous solution. Results showed that adsorption capacity was influenced by the pH of the aqueous solution with an observed maximum phenol removal at pH around 6-8. The adsorption equilibrium of phenolic compounds was obtained after almost two hours with an adsorption of approximately 90% of the phenolic compounds. A sorbent concentration of 1.8 g/L was found to insure the best removal percentage and the best sorbent capacity. Both Langmuir and Freundlich models have provided reasonable fittings for the data of phenol adsorption. The experimental data fitted the pseudo-second-order kinetic model and the intraparticle diffusion model. The values of change in Gibbs free energy (?G°), enthalpy (?H°) and entropy (?S°) were calculated. The thermodynamic study of adsorption process showed that the process was exothermic in nature.

Alaa H. Hawari

2014-01-01T23:59:59.000Z

64

Anaerobic digestion of glycerol and co-digestion of glycerol and pig manure  

Science Journals Connector (OSTI)

The potential of glycerol obtained from transesterification of waste cooking oil as a main carbon source for biogas production was investigated. The glycerol was highly contaminated with oils and fats and was pretreated with sulfuric acid. Using a carbon source of glucose as a control, we compared biogas production from the acid-treated glycerol in a synthetic medium and the acid-treated glycerol mixed with pig manure. The anaerobic digestion of acid-treated glycerol with supplement in a synthetic medium was found to be satisfactory at organic loading rates (OLR) between 1.3, 1.6 and 2.6 g chemical oxygen demand (COD) L?1 d?1. The maximum methane yield of 0.32 L at Standard temperature and pressure (STP) g?1 COD removal was achieved at an OLR of 1.6 g COD L?1 d?1 and the methane content was 54% on an average. At a higher organic loading rate of 5.4 g COD L?1 d?1, the propionic acid to acetic acid ratio was higher than the critical threshold limit for metabolic imbalance. Anaerobic digestion of acid-treated glycerol with pig manure was also investigated at the COD ratio of 80:20 (glycerol:pig manure). The anaerobic digestion of acid-treated glycerol with pig manure was found to be satisfactory at organic loading rates between 1.3, 1.7, 2.9 and 5.0 g COD L?1 d?1 in terms of COD reduction (>80%) and methane content of (62% on an average). However, the biogas production rate was found to significantly decrease at the highest load. The maximum methane yield of 0.24 L STP g?1 COD removal was achieved at an OLR of 1.3 g COD L?1 d?1.

Sasikarn Nuchdang; Chantaraporn Phalakornkule

2012-01-01T23:59:59.000Z

65

Floodplain Assessment for Installation of a Renewable Energy Anaerobic Digester Facility  

Office of Energy Efficiency and Renewable Energy (EERE)

Floodplain Assessment for Installation of a Renewable Energy Anaerobic Digester Facility at the University of California, Davis in Yolo County, California, as posted on the U.S. Department of Energy website.

66

E-Print Network 3.0 - anaerobic digestion held Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

anaerobic digestion held Page: << < 1 2 3 4 5 > >> 1 www.manuremanagement.cornell.edu Biogas Casebook Summary: 1 www.manuremanagement.cornell.edu Biogas Casebook: NYS On-farm...

67

Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries  

Broader source: Energy.gov [DOE]

DOE Biomass Program perspective on anaerobic digestion and fuel cell integratin at biorefineries. Presented by Brian Duff, DOE Biomass Program, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

68

Experimental evaluation of anaerobic digestion for coffee wastewater treatment and its biomethane recovery potential  

Science Journals Connector (OSTI)

The objective of this study was to evaluate the performance of anaerobic digestion (AD) as an eco-friendly technology for coffee wastewater (CWW) management. First, we have characterized the CWW and found that...

A. Beyene; D. Yemane; T. Addis…

2014-10-01T23:59:59.000Z

69

Anaerobic digestion of wool scouring wastewater in a digester operated semi-continuously for biomass retention  

Science Journals Connector (OSTI)

An anaerobic digester, operated semi-continuously in order to retain high concentrations of biomass in the digester, was used to treat wool scouring wastewater. At a space load of 9·9 kg COD m?3 day ?1 (hydraulic retention time, 2·8 days) >56% of the COD and >47% of the grease were removed. At these efficiencies, this rate was estimated to be at least 2·5·3· times greater than that which would be achieved in a continuously stirred digester. Preliminary studies of enzymatic pretreatment of the scouring effluent showed that significantly improved treatment rates and/or efficiencies could be achieved—i.e. >70% removal of both the COD and grease at a space load of 12 kg COD m?3 day?1. It is unlikely that any substancial levels of flocculation would develop in this system and it is expected that the moderate use of polyelectrolytes would be required to help maintain the VSS concentration in the reactor.

R.G. Cail; J.P. Barford; R. Lichacz

1986-01-01T23:59:59.000Z

70

Nitrification of centrate from dewatering of anaerobically digested sludge  

Science Journals Connector (OSTI)

Nitrification of anaerobically digested sludge centrate was studied in bench-scale suspended growth and fixed film enhanced suspended growth systems at temperatures of 10.5-28.5°C and pH values of 6.0-9.1. Nitrification followed zero-order kinetics in both systems, and ammonia removals in excess of 99% were observed. The temperature dependency of the suspended growth nitrification rate observed under not fully acclimated biomass conditions at pH between 6.8 and 8.5, was expressed as kT = k20?T-20where k20 and ? were found to be 0.34 mg NH3-N/MLVSS-d and 1.033, respectively. The nitrification rate in the fixed film enhanced suspended growth system involving styrofoam pads ranged from 0.11 to 0.13 mg NH3-N/mg MLVSS-d at temperatures of 21.5-25°C and pH values of 7.8-8.6. The process contained suspended solids in the range of 10-20 mg/l.

M. Kawsar Ali; C.G. Marquez; J. Fillos; V. Diyamandoglu; L.A. Carrio

1998-01-01T23:59:59.000Z

71

E-Print Network 3.0 - anaerobic 2-methylnaphthalene degradation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

provides a general overview of anaero- Summary: that can be degraded by bacteria. Biogas: the gas produced by anaerobic bacteria in the anaerobic digestion... at Virginia...

72

E-Print Network 3.0 - anaerobic carbon degradation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

12;13 degradable (E... monitoring system for the anaerobic process, based on headspace gas chromatography. Submitted. Paper III Boe... on the IWA Anaerobic Digestion Model No.1...

73

Anaerobic digestion of organic solid waste for energy production.  

E-Print Network [OSTI]

??This study was carried out in order to evaluate the performance of anaerobic reactors treating OFMSW (organic fraction of municipal solid waste), especially in terms… (more)

Nayono, Satoto Endar

2009-01-01T23:59:59.000Z

74

Economic implications of anaerobic digesters on dairy farms in Texas  

E-Print Network [OSTI]

-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...

Jackson, Randy Scott, Jr.

2007-09-17T23:59:59.000Z

75

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

SciTech Connect (OSTI)

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

76

Optimizing the Operation of a Two-Phase Anaerobic Digestion System Digesting Grass Silage  

Science Journals Connector (OSTI)

Methane Yields from Grass Biomethane Digesters ... biomethane potential test ... biomethane potential test ...

Abdul-Sattar Nizami; Jerry D. Murphy

2011-07-25T23:59:59.000Z

77

A systemic approach for dimensioning and designing anaerobic bio-digestion/energy generation biomass supply networks  

Science Journals Connector (OSTI)

Abstract Anaerobic bio-digestion/energy generation complexes using animal waste raw materials represent an important component of renewable energy initiatives and policies worldwide, and are significant contributors to broaden sustainability efforts. In such projects bio-power feasibility depends heavily on generation complex access to biomass which is of costly transportation. As a result, an important component of renewable energy planning is the optimization of a logistics system to guarantee low-cost access to animal waste. This access is a function of local characteristics including number and geographic location of organic waste sources, operating and maintenance costs of the generation facility, energy prices, and marginal contribution of biomass collected and delivered to the anaerobic bio-digestion unit. Because biomass exhibits high transportation costs per unit of energy ultimately generated, and because different types of biomass have different biogas-generating properties, design of the supply logistics system can be the determinant factor towards economic viability of energy generation from an anaerobic bio-digestion plant. Indeed, to address this problem it is helpful to consider the farms, the logistics system, the anaerobic bio-digestion plant, and the generation plant as subsystems in an integrated system. Additionally, the existence of an outlet for manure may allow farmers to significantly raise boundaries of one constraint they face, namely disposing of animal waste, therefore permitting increases in farm production capacity. This paper suggests and outlines a systematic methodology to address the design of such systems.

João Neiva de Figueiredo; Sérgio Fernando Mayerle

2014-01-01T23:59:59.000Z

78

The viscoelastic behaviour of raw and anaerobic digested sludge: strong similarities with soft-glassy materials  

E-Print Network [OSTI]

1 The viscoelastic behaviour of raw and anaerobic digested sludge: strong similarities with soft confronted with a dramatically increasing flow of sewage sludge. To improve treatment efficiency, process reliable flow properties to simulate the process, this work is an attempt to approach sludge rheological

Paris-Sud XI, Université de

79

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 winery effluent wastewater Carlos García-Diéguez 1 , Olivier Bernard 2 , Enrique Roca 1, * 1 USC ­ PRODES for winery effluent wastewater. A new reduced stoichiometric matrix was identified and the kinetic parameters

Boyer, Edmond

80

Biochar Produced from Anaerobically Digested Fiber Reduces Phosphorus...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

dairy lagoons. The ADF was collected from a plugged flow digester, air-dried to <8% water content, and pelletized. Biochar was produced by slow pyrolysis in a barrel retort....

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

Citrus essential oils and their influence on the anaerobic digestion process: An overview  

Science Journals Connector (OSTI)

Abstract Citrus waste accounts for more than half of the whole fruit when processed for juice extraction. Among valorisation possibilities, anaerobic digestion for methane generation appears to be the most technically feasible and environmentally friendly alternative. However, citrus essential oils can inhibit this biological process. In this paper, the characteristics of citrus essential oils, as well as the mechanisms of their antimicrobial effects and potential adaptation mechanisms are reviewed. Previous studies of anaerobic digestion of citrus waste under different conditions are presented; however, some controversy exists regarding the limiting dosage of limonene for a stable process (24–192 mg of citrus essential oil per liter of digester and day). Successful strategies to avoid process inhibition by citrus essential oils are based either on recovery or removal of the limonene, by extraction or fungal pre-treatment respectively.

B. Ruiz; X. Flotats

2014-01-01T23:59:59.000Z

82

Quantification of Gordona amarae Strains in Foaming Activated Sludge and Anaerobic Digester Systems with Oligonucleotide Hybridization Probes  

Science Journals Connector (OSTI)

...hierarchic classification system, Actinobacteria...hybridization probes for studies of ruminal microbial...pseudomonads. A taxonomic study. . Stratton H...ammonia-oxidizing bacteria. . Wheeler D. Rule A. . Zheng...microbial ecology studies. . Quantification...anaerobic digester systems with oligonucleotide...

M. Fiorella de los Reyes; Francis L. de los Reyes III; Mark Hernandez; Lutgarde Raskin

1998-07-01T23:59:59.000Z

83

Ultrasonic sludge disintegration for enhanced methane production in anaerobic digestion: effects of sludge hydrolysis efficiency and hydraulic retention time  

Science Journals Connector (OSTI)

Hydrolysis of waste activated sludge (WAS) has been regarded as the rate limiting step of anaerobic sludge digestion. Therefore, in this study, the ... effect of ultrasound and hydraulic residence time during sludge

Dong-Jin Kim; Jonghak Lee

2012-01-01T23:59:59.000Z

84

Biological hydrogen production by anaerobic digestion of food waste and sewage sludge treated using various pretreatment technologies  

Science Journals Connector (OSTI)

The purpose of this study was to enhance the efficiency of anaerobic co-digestion with sewage sludge using pretreatment technologies and food waste. We studied the effects of various pretreatment methods (thermal...

Seungjin Kim; Kwangkeun Choi; Jong-Oh Kim; Jinwook Chung

2013-11-01T23:59:59.000Z

85

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

Science Journals Connector (OSTI)

Anaerobic digesters (ADs) can produce renewable energy from livestock manure, prevent the release of methane, and reduce air and water pollution, and digested manure can be applied to crops as a fertilizer. ... Comprehensive inclusion of the GHG mitigation benefits and low-carbon energy generation of AD projects within a federal climate and energy policy would further enhance prospects for new projects. ... Arthurson, V.Closing the Global Energy and Nutrient Cycles through Application of Biogas Residue to Agricultural Land - Potential Benefits and Drawbacks Energies 2009, 2 ( 2) 226– 242 ...

David P. M. Zaks; Niven Winchester; Christopher J. Kucharik; Carol C. Barford; Sergey Paltsev; John M. Reilly

2011-07-15T23:59:59.000Z

86

Thermophilic Anaerobic Digestion to Increase the Net Energy Balance of Corn Grain Ethanol  

Science Journals Connector (OSTI)

Thermophilic Anaerobic Digestion to Increase the Net Energy Balance of Corn Grain Ethanol ... However, the calculation did not include the energetic costs to physically replace the evaporator with the integrated digester system (this will be a relatively small fraction of the energy input because the percentage of energy input per unit of ethanol energy output for construction of the entire conventional dry mill is 0.2% (4)); the improved quality in animal feed (DDG vs DDGS); nor the available waste heat from circumventing thin stillage evaporation. ...

Matthew T. Agler; Marcelo L. Garcia; Eric S. Lee; Martha Schlicher; Largus T. Angenent

2008-08-05T23:59:59.000Z

87

Anaerobic Digestion in California Dairies: Electricty Generation or Biomethane Upgrading.  

E-Print Network [OSTI]

??California is worldwide one of the major Green House Gas emitter due to a large use of fossil fuels in power generation and transportation. The… (more)

Bandini, Francesco

2008-01-01T23:59:59.000Z

88

A new temperature controlled digester for anaerobic digestion for biogas production  

Science Journals Connector (OSTI)

Various types of insulating composite materials were used on ceramic digesters for the control of temperature. Maintenance of temperature is highlighted in this paper. The above types of digesters can adequately control the temperature, especially in the winter season. The results of extensive experimental and theoretical studies have been cited in this paper. This work is beneficial for those plants which are generally in higher altitude stations with low atmospheric temperature, like Leh (India). These types of digesters were found to be very useful for the production of biogas, especially from aquatic biomass like water hyacinth.

Upama Misra; Sanjay Singh; Amarika Singh; G.N. Pandey

1992-01-01T23:59:59.000Z

89

A network design model for biomass to energy supply chains with anaerobic digestion systems  

Science Journals Connector (OSTI)

Abstract Development and implementation of renewable energy systems, as a part of the solution to the worldwide increasing energy consumption, have been considered as emerging areas to offer an alternative to the traditional energy systems with limited fossil fuel resources and to challenge environmental problems caused by them. Biomass is one of the alternative energy resources and agricultural, animal and industrial organic wastes can be treated as biomass feedstock in biomass to energy conversion systems. This study aims to develop an effective supply chain network design model for the production of biogas through anaerobic digestion of biomass. In this regard, a mixed integer linear programming model is developed to determine the most appropriate locations for the biogas plants and biomass storages. Besides the strategic decisions such as determining the numbers, capacities and locations of biogas plants and biomass storages, the biomass supply and product distribution decisions can also be made by this model. Mainly, waste biomass is considered as feedstock to be digested in anaerobic digestion facilities. To explore the viability of the proposed model, computational experiments are performed on a real-world problem. Additionally, a sensitivity analysis is performed to account for the uncertainties in the input data to the decision problem.

?ebnem Y?lmaz Balaman; Hasan Selim

2014-01-01T23:59:59.000Z

90

Temporal variation in methanogen communities of four different full-scale anaerobic digesters treating food waste-recycling wastewater  

Science Journals Connector (OSTI)

Abstract Methanogen communities were investigated using 454 pyrosequencing in four different full-scale anaerobic digesters treating food waste-recycling wastewater. Seasonal samples were collected for 2 years, and 24 samples were available for microbial analysis from a plug flow thermophilic (PT) digester, a continuously-stirred tank thermophilic (CT) digester, an upflow anerobic sludge blanket mesophilic (UM) digester, and a continuously-stirred tank mesophilic (CM) digester. Methanoculleus, Methanobacterium, Methanothermobacter, and Methanosaeta were revealed to be key methanogens in full-scale anaerobic digestion process treating food waste-recycling wastewater. In the PT digester, Methanoculleus was dominant (96.8%). In the CT digester, Methanoculleus was dominant (95.4%) during the first year of operation, but the dominant genus was shifted to Methanothermobacter (98.5%) due to pH increase. In the UM digester, Methanosaeta was dominant (87.2%). In the CM digester, Methanoculleus was constantly dominant (74.8%) except during CM5 when Methanosaeta was dominant (62.6%) due to the low residual acetate concentration (0.1 g/L).

Joonyeob Lee; Byungchul Hwang; Taewoan Koo; Seung Gu Shin; Woong Kim; Seokhwan Hwang

2014-01-01T23:59:59.000Z

91

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

E-Print Network [OSTI]

information deals with land ap- plication of anaerobically digested sewage sludge, and on- ly limited data such as plant biomass, sewage sludge, or animal wastes is used to generate CH4 and stabilized organic waste, or preferably utilized, in an environmentally safe manner. Disposal of the anaerobically digested sludge by land

Florida, University of

92

Flux analysis of the human proximal colon using anaerobic digestion model 1  

Science Journals Connector (OSTI)

Abstract The colon can be regarded as an anaerobic digestive compartment within the gastro intestinal tract (GIT). An in silico model simulating the fluxes in the human proximal colon was developed on basis of the anaerobic digestion model 1 (ADM1), which is traditionally used to model waste conversion to biogas. Model calibration was conducted using data from in vitro fermentation of the proximal colon (TIM-2), and, amongst others, supplemented with the bio kinetics of prebiotic galactooligosaccharides (GOS) fermentation. The impact of water and solutes absorption by the host was also included. Hydrolysis constants of carbohydrates and proteins were estimated based on total short chain fatty acids (SCFA) and ammonia production in vitro. Model validation was established using an independent dataset of a different in vitro model: an in vitro three-stage continuous culture system. The in silico model was shown to provide quantitative insight in the microbial community structure in terms of functional groups, and the substrate and product fluxes between these groups as well as the host, as a function of the substrate composition, pH and the solids residence time (SRT). The model confirms the experimental observation that methanogens are washed out at low pH or low SRT-values. The in silico model is proposed as useful tool in the design of experimental setups for in vitro experiments by giving insight in fermentation processes in the proximal human colon.

Anne Marieke Motelica-Wagenaar; Arjen Nauta; Ellen G.H.M. van den Heuvel; Robbert Kleerebezem

2014-01-01T23:59:59.000Z

93

E-Print Network 3.0 - anaerobic process effects Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

based on headspace gas chromatography. Submitted. Paper III Boe... . 12;12;4 2. The biogas process Anaerobic digestion is a multi-step biological process where... . The...

94

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

Broader source: Energy.gov (indexed) [DOE]

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;

95

A model of anaerobic digestion for biogas production using Abel equations  

E-Print Network [OSTI]

We consider a nonlinear mathematical model for the study of anaerobic digestion processes. We decompose the original system of nonlinear ordinary differential equations into subsystems. For these subsystems we prove existence of lower and upper solutions in reverse order for one of the va\\-ria\\-bles. The upper and lower solutions are constructed in analytical form. Furthermore, the upper solutions of subsystem for feeding bacteria are related with solutions of Abel equations of the first kind. Using numerical and theoretical arguments we examine how to obtain upper and lower solutions approximated to the numerical solution of the system. In this work we establish special techniques of lower-upper solution, which includes reverse order for non monotone systems, in contrast to the techniques used by H.L. Smith and P. Waltman on their monograph.

Primitivo B. Acosta-Humánez; Maximiliano Machado-Higuera; Alexander V. Sinitsyn

2014-11-27T23:59:59.000Z

96

E-Print Network 3.0 - aerobic digestion process Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technologies ; Environmental Sciences and Ecology 9 www.manuremanagement.cornell.edu Biogas Casebook Summary: of gas handling equipment for an anaerobic digester system....

97

Influence of bed materials on methanogenic characteristics and immobilized microbes in anaerobic digester  

Science Journals Connector (OSTI)

This paper reports and discusses the effects of bed materials on the performance of methanogenic fluidized bed reactors with acetic acid as the sole organic substrate. Four bed materials (carbon filter, rock wool, loofah sponge and polyurethane foam) were evaluated and compared for their methanogenic characteristics and immobilized microbes. The present results indicated that the characteristics of the bed materials for immobilization had a significant influence on the methane production. The loofah sponge and polyurethane foam were suggested to be suitable for the bed material in anaerobic digestion. The best methane yield was obtained from the loofah reactor among the four kinds of bed materials. The main cellular morphologies present in the biofilms of the four different materials on the colonization were observed using scanning electron microscopy. The microphotographs indicated that the biofilm was primarily composed of coccus, diplococci-shaped Methanosarcina-like cells, long rods of Methanobacterium and coccobacillus of Methanobrevibacter-like bacteria. The morphologies observed from the microscopic analysis indicated that the different bed materials could provide specific conditions for the adherence of distinct microorganism types. Furthermore, a 16S rRNA phylogenetic analysis was conducted to compare the immobilized archaeal population. The results of the 16S rRNA phylogenetic analysis indicated that the major immobilized methanogens were Methanobacterium formicicum, Methanosarcina barkeri and Methanosarcina mazei in all the bed materials. A similar clone distribution was observed with the loofah sponge and the carbon felt.

Yingnan Yang; Chika Tada; Md Shohidullah Miah; Kenichiro Tsukahara; Tatsuo Yagishita; Shigeki Sawayama

2004-01-01T23:59:59.000Z

98

A comprehensive microbial insight into two-stage anaerobic digestion of food waste-recycling wastewater  

Science Journals Connector (OSTI)

Microbial community structures were assessed in a two-stage anaerobic digestion system treating food waste-recycling wastewater. The reactors were operated for 390 d at 10 different hydraulic retention times (HRTs) ranging from 25 to 4 d. Stable operation was achieved with the overall chemical oxygen demand (COD) removal efficiency of 73.0–85.9% at organic loading rate of up to 35.6 g COD/L·d. Performance of the acidogenic reactors, however, changed significantly during operation. This change coincided with transition of the bacterial community from one dominated by Aeriscardovia- and Lactobacillus amylovorus-related species to one dominated by Lactobacillus acetotolerans- and Lactobacillus kefiri-like organisms. In methanogenic reactors, the microbial community structures also changed at this stage along with the shift from Methanoculleus- to Methanosarcina-like organisms. This trend was confirmed by the non-metric multidimensional scaling joint plot of microbial shifts along with performance parameters. These results indicated that the overall process performance was relatively stable compared to the dynamic changes in the microbial structures and the acidogenic performance.

Seung Gu Shin; Gyuseong Han; Juntaek Lim; Changsoo Lee; Seokhwan Hwang

2010-01-01T23:59:59.000Z

99

Thermophilic anaerobic digestion of thermal pretreated sludge: Role of microbial community structure and correlation with process performances  

Science Journals Connector (OSTI)

Abstract Thermal hydrolysis pretreatment coupled with Thermophilic Anaerobic Digestion (TAD) for Waste Activated Sludge (WAS) treatment is a promising combination to improve biodegradation kinetics during stabilization. However, to date there is a limited knowledge of the anaerobic biomass composition and its impact on TAD process performances. In this study, the structure and dynamics of the microbial communities selected in two semi-continuous anaerobic digesters, fed with untreated and thermal pretreated sludge, were investigated. The systems were operated for 250 days at different organic loading rate. 16S rRNA gene clonal analysis and Fluorescence In Situ Hybridization (FISH) analyses allowed us to identify the majority of bacterial and archaeal populations. Proteolytic Coprothermobacter spp. and hydrogenotrophic Methanothermobacter spp. living in strict syntrophic association were found to dominate in TAD process. The establishment of a syntrophic proteolytic pathway was favoured by the high temperature of the process and enhanced by the thermal pretreatment of the feeding sludge. Proteolytic activity, alone or with thermal pretreatment, occurred during TAD as proven by increasing concentration of soluble ammonia and soluble COD (sCOD) during the process. However, the availability of a readily biodegradable substrate due to pretreatment allowed to significant sCOD removals (more than 55%) corresponding to higher biogas production in the reactor fed with thermal pretreated sludge. Microbial population dynamics analysed by FISH showed that Coprothermobacter and Methanothermobacter immediately established a stable syntrophic association in the reactor fed with pretreated sludge in line with the overall improved TAD performances observed under these conditions.

M.C. Gagliano; C.M. Braguglia; A. Gianico; G. Mininni; K. Nakamura; S. Rossetti

2015-01-01T23:59:59.000Z

100

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

E-Print Network [OSTI]

with wastewater sludge, wood ash, coal ash, lime-kiln dust, and/or limestone quarry dust to improve the profile systems [Block & Goldstein 2000]. Anaerobic composting is not well used in the U.S until now [Goldstein of the process, the methane gas ("cleaner energy") and harvesting materials from MSW to #12;either recycle

Wisconsin-Milwaukee, University of

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


101

Production of methane gas from organic fraction municipal solid waste (OFMSW) via anaerobic process: application methodology for the Malaysian condition  

Science Journals Connector (OSTI)

Solid waste management in Malaysia is confronted with many problems, including low collection coverage, irregular collection services, inadequate equipment used for waste collection, crude open dumping and burning without air and water pollution control systems, inadequate legal provisions and resource constraints. These problems have various effects on the development of the solid waste management system in Malaysia. Anaerobic digestion has been suggested as an alternative method for removing high concentrations of organic waste. In this study, two types of anaerobic digesters which are Simulated Landfill Bioreactor (SLBR) and Anaerobic Solid-Liquid (ASL) reactor were proposed. The reactors were operated at a temperature 60°C, analysed for biogas production and volatile fatty acid.

Irnis Azura Zakarya; Ismail Abustan; Norli Ismail; Mohd Suffian Yusoff

2013-01-01T23:59:59.000Z

102

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

E-Print Network [OSTI]

Reduction of Antibiotic-Resistant Bacteria Present in Food Animal Manures by Composting in conventional, on-farm lagoons does not result in any significant reduction of antimicrobial resistance. Animal digestion and composting at mesophilic or moderate temperature significantly reduced the antimicrobial

Jones, Michelle

103

Improved Anaerobic Digestion by the Addition of Paper Tube Residuals: Pretreatment, Stabilizing, and Synergetic Effects  

Science Journals Connector (OSTI)

Pretreatments with steam explosion were performed on the paper tubes and evaluated by batch assays measuring the biomethane potential. ... 3.1 Biomethane Potential of Untreated and Treated Paper Tubes: Batch Assays ... The aim of this study was to elucidate the effect of steam pretreatment on the biomethane potential of biofibers from digested manure. ...

Anna Teghammar; Maria del Pilar Castillo; Johnny Ascue; Claes Niklasson; Ilona Sárvári Horváth

2012-12-11T23:59:59.000Z

104

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

SciTech Connect (OSTI)

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

105

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

SciTech Connect (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

106

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

SciTech Connect (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

107

Modelling the energy performance of a farm-scale cellulose to ethanol process with on-site cellulase production and anaerobic digestion  

Science Journals Connector (OSTI)

Abstract A farm-scale process for converting wheat straw to ethanol was modelled to assess its energy performance. The process incorporates the on-site production of crude unprocessed liquid cellulase produced via solid-state fermentation, and the anaerobic digestion of process residues to supply heat and electricity. Results include energy yield ratios from 6 to 9, reductions of 80–90 % in the energy required to produce and transport the cellulase compared to commercial preparations, and a net surplus of on-site heat and electricity. From these improvements in process efficiency, environmental benefits follow.

Mitchell Lever

2015-01-01T23:59:59.000Z

108

Reduced gas pressure operation of sludge digesters: Expanded studies. Final report  

SciTech Connect (OSTI)

Previous investigations strongly suggested that the municipal anaerobic sludge digestion process could be enhanced by reactor operation with subatmospheric headspace pressures. Enhanced solids destruction and methane production along with increased process stability were observed in these earlier studies. However, due to the small scale of the anaerobic reactors used ( {approx}1.5 L), definitive steady-state measurements could not be obtained. These expanded studies were undertaken to verify and define the magnitude of the benefits that might be obtained with vacuum operation of sludge digesters. Four reactors ({approx}15.0 L) were fed municipal sludge at three different organic loading rates while being maintained with a 15-day solids retention time. One reactor had a constant headspace pressure of 1.02 atm; a second was maintained at 0.75 atm; and the remaining two reactors were operated for the majority of the day at 1.02 atm, and for part of the day with a 0.75 atm headspace pressure. Additional small-scale, batch experiments were performed to help identify controlling digestion mechanisms. The results of these expanded studies indicate that vacuum operation did not yield significant advantages over the organic loading range investigated (0.088 to 0.352 lb VSS/ft{sup 3}{center_dot}d).

Not Available

1993-09-01T23:59:59.000Z

109

Anaerobic codigestion of dairy manure and food manufacturing waste for renewable energy generation in New York State.  

E-Print Network [OSTI]

??Anaerobic digestion is a microbiological process that converts biodegradable organic material into biogas, consisting primarily of methane and carbon dioxide. Anaerobic digestion technologies have been… (more)

Wu, Yen-Chin

2013-01-01T23:59:59.000Z

110

The effect of algae species on biodiesel and biogas production observed by using a data model combines algae cultivation with an anaerobic digestion (ACAD) and a biodiesel process  

Science Journals Connector (OSTI)

Abstract The influence of an algae species based on the biodiesel yield was investigated by using a combined plant model from the literature. The model has six different processes: algal cultivation, the flocculation and separation process, biodiesel production, anaerobic digestion, scrubbing, and combined heat and power (CHP). The data model in the literature was operated with the values for Chlorella vulgaris. To investigate the roles of the algae species on the biodiesel yield in the model, two different algae species, Nannochloropsis sp. and Haematococcus pluvialis, were selected. Depending on the data from these algae in the literature, three different scenarios were modeled in the study. The model shows that all of the scenarios for biodiesel production can be totally independent of an external energy supply. Energy estimations for all of the applications scenarios show that the system produces more energy than the amount that is required for the processing operation.

Zehra Sapci; John Morken

2014-01-01T23:59:59.000Z

111

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

E-Print Network [OSTI]

gasses, great interest has arisen in production of biofuels. The idea of combining biogas and bioethanol and water in industry is a rather expensive medium. The remaining liquid after the biogas process is waste to pollution of ground waters. Furthermore the biogas process does not kill all pathogens. Anaerobically

112

Which is the preferable biogas utilisation technology for anaerobic digestion of agricultural crops in Ireland: Biogas to CHP or biomethane as a transport fuel?  

Science Journals Connector (OSTI)

The utilisation of anaerobic digestion to produce biogas as an energy source is a mature technology in many European countries but is yet to be developed in Ireland. In 2009, the EU issued the Renewable Energy Source Directive 2009/28/EC which requires a 20% share of renewable energy sources (heat and electricity) in final energy consumption for all member states, respectively, including a 10% share of biofuels in the transport sector by 2020. The introduction of biogas to produce power and electricity in the form of CHP technology and biomethane as a transport fuel can help Ireland achieve the mandatory targets set by the directive. The key focus of the paper is to determine the optimum small to medium scale biogas technology and the impact the introduction of that technology infrastructure will have on renewable energy targets for Ireland. In terms of feedstock, agricultural sources such as energy crops and slurry offer a sustainable input to the anaerobic digestion process. The crop rotations under consideration consist of different arrangements of grass silage, maize silage and barley. Grass silage is found to be the most suitable crop for biogas energy production while biogas upgrading to biomethane as a transport fuel has the optimum technology potential in Ireland. To fuel a car operating on biomethane, 0.22 ha of grass land is required annually. Full scale national development of 5% of the area under grass in Ireland will contribute 11.4% of renewable energy to the total final transport energy demand by 2020, surpassing the target set by the Renewable Energy Source Directive 2009/28/EC.

D. Goulding; N. Power

2013-01-01T23:59:59.000Z

113

Property:Building/SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyNrmlYrMwhYrDigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

114

Property:Building/SPPurchasedEngyPerAreaKwhM2DigesterLandfillGas | Open  

Open Energy Info (EERE)

DigesterLandfillGas DigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyPerAreaKwhM2DigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

115

Property:Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

116

E-Print Network 3.0 - anaerobic digester gas Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Department of Physics, Stanford University Collection: Physics 6 Managing Manure with Biogas Recovery Systems Summary: emissions and capture biogas--a useful source of energy....

117

E-Print Network 3.0 - anaerobic acidification broth Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

broth produced in the biomass... is expected to undergo anaerobic digestion to produce biogas. This biogas will serve as the primary source... be produced during the anaerobic...

118

Environmental assessment of energy production by combustion of biogas provided by the anaerobic digestion of agricultural biomass  

Science Journals Connector (OSTI)

This paper tries to compare the environmental impacts of energy production using agricultural biomass and energy production using traditional reactor systems (natural gas and fuel oil) by using the Life Cycle Assessment (LCA) methodology. In order to make this comparison, the impact assessment methods CML 2 BASELINE 2000 (problem oriented method) and ECOINDICATOR 99 (damage oriented method) are used. The heat produced by cogeneration is intended to feed a heating network connected to 16 dwellings. The results show that the use of biogas reduces the emissions taking part in the global warming potential and reduces the global environmental impact.

Sebastien Moras

2008-01-01T23:59:59.000Z

119

E-Print Network 3.0 - anaerobic work capacity Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This publication provides a general overview of anaero- Summary: lost some of its biogas production potential. Anaerobic digesters work best when the digestion pro... at...

120

E-Print Network 3.0 - anaerobic waste water Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Recovery Jun Wei LIM... waste. Keywords Anaerobic digestion; food waste; brown water; biogas; co-digestion INTRODUCTION... of brown water and food ... Source: Ecole Polytechnique,...

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


121

E-Print Network 3.0 - anaerobic feiii-reducer rhodoferax Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and agricultural wastewater, includ- ing methanogenic anaerobic digestion, biological hydro- gen production... material in industrial and agricultural wastewater Methanogenic...

122

ANAEROBIC BIOLOGICAL TREATMENT OF PRODUCED WATER  

SciTech Connect (OSTI)

During the production of oil and gas, large amounts of water are brought to the surface and must be disposed of in an environmentally sensitive manner. This is an especially difficult problem in offshore production facilities where space is a major constraint. The chief regulatory criterion for produced water is oil and grease. Most facilities have little trouble meeting this criterion using conventional oil-water separation technologies. However, some operations have significant amounts of naphthenic acids in the water that behave as oil and grease but are not well removed by conventional technologies. Aerobic biological treatment of naphthenic acids in simulated-produced water has been demonstrated by others; however, the system was easily overloaded by the large amounts of low-molecular-weight organic acids often found in produced waters. The objective of this research was to determine the ability of an anaerobic biological system to treat these organic acids in a simulated produced water and to examine the potential for biodegradation of the naphthenic acids in the anaerobic environment. A small fixed-film anaerobic biological reactor was constructed and adapted to treat a simulated produced water. The bioreactor was tubular, with a low-density porous glass packing material. The inocula to the reactor was sediment from a produced-water holding pond from a municipal anaerobic digester and two salt-loving methanogenic bacteria. During start-up, the feed to the reactor contained glucose as well as typical produced-water components. When glucose was used, rapid gas production was observed. However, when glucose was eliminated and the major organic component was acetate, little gas was generated. Methane production from acetate may have been inhibited by the high salt concentrations, by sulfide, or because of the lack, despite seeding, of microbes capable of converting acetate to methane. Toluene, a minor component of the produced water (0.1 g/L) was removed in the reactor. Batch tests were conducted to examine naphthenic acid biodegradability under several conditions. The conditions used were seed from the anaerobic reactor, wetland sediments under aerobic and anaerobic conditions, and a sterile control. The naphthenic acid was from a commercial source isolated from Gulf Coast petroleum as was dosed at 2 mg/mL. The incubations were for 30 days at 30 C. The results showed that the naphthenic acids were not biodegraded under anaerobic conditions, but were degraded under aerobic conditions. Despite poor performance of the anaerobic reactor, it remains likely that anaerobic treatment of acetate, toluene, and, potentially, other produced-water components is feasible.

John R. Gallagher

2001-07-31T23:59:59.000Z

123

Inactivation of poliovirus in digested sludge.  

Science Journals Connector (OSTI)

...Inactivation of poliovirus in digested sludge. R L Ward C S Ashley The effect of anaerobically digested sludge on poliovirus during incubation at temperatures...Although virus was fully recoverable from sludge, its infectivity decreased in proportion...

R L Ward; C S Ashley

1976-06-01T23:59:59.000Z

124

E-Print Network 3.0 - artificial digestion methods Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... (oxygen free) digestion of organic matter whereby the organic matter is converted...

125

E-Print Network 3.0 - animal manure digestion Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

with other organic wastes. Co-digestion has the primary advan- tage... to generate biogas from animal manure. Some com- mon anaerobic digester configurations used on farms...

126

E-Print Network 3.0 - anaerobic betaproteobacterium georgfuchsia...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

127

Structure and Dynamics of Anaerobic Bacterial Aggregates in a Gas-Lift Reactor  

Science Journals Connector (OSTI)

...Consequently, the mechanical strength of aggregates is affected...Such mechanical effects by gas bubbles arising within biofilms...shearing forces, cell lysis, gas production, etc.) may...W. F. Kossen. 1980. Gas production by immobilized...

H. H. Beeftink; P. Staugaard

1986-11-01T23:59:59.000Z

128

The Impacts of Triclosan on Anaerobic Community Structures, Function, and Antimicrobial Resistance  

Science Journals Connector (OSTI)

The Impacts of Triclosan on Anaerobic Community Structures, Function, and Antimicrobial Resistance ... Triclosan is a widespread antimicrobial agent that accumulates in anaerobic digesters used to treat the residual solids generated at municipal wastewater treatment plants; there is very little information, however, about how triclosan impacts microbial communities in anaerobic digesters. ... We investigated how triclosan impacts the community structure, function and antimicrobial resistance genes in lab-scale anaerobic digesters. ...

Patrick J. McNamara; Timothy M. LaPara; Paige J. Novak

2014-06-10T23:59:59.000Z

129

Quantitative Methods for the Gas Chromatographic Characterization of Acidic Fermentation By-Products of Anaerobic Bacteria  

Science Journals Connector (OSTI)

......250 C. The nitrogen carrier gas flow rate...incubated in a water bath at 50...deionized water and 0.5...as above. Gas Chromatographic...ml/min nitrogen and the injector...showed low solubility in water, especially...Overall, the gas chromatographic......

Thomas E. Bohannon; Gerald Manius; Francisco Mamaril; Lan-Fun Li Wen

1978-01-01T23:59:59.000Z

130

aerobic sludge digestion: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of organic wastes) and digestion (anaerobic treatment of organic wastes combined with biogas production) are important waste management strategies with increasing significance...

131

Anaerobic and Aerobic Hydrogen Gas Formation by the Blue-Green Alga Anabaena cylindrica  

Science Journals Connector (OSTI)

...as high in heterocyst cells (2.3 units/mg of protein) as in vegetative cells (1.1 units/mg of...isolating heterocyst cells is described. Biological hydrogen gas formation is under...potential source of fuel, and hence there is...

Arlene Daday; Rosalea A. Platz; Geoffrey D. Smith

1977-11-01T23:59:59.000Z

132

Potential of Wastewater-Treating Anaerobic Granules for Biomethanation of Synthesis Gas  

Science Journals Connector (OSTI)

This includes the water-gas shift (WGS) reaction for increasing the H2/CO ratio followed by nickel-catalyzed methanation of CO and CO2 into methane and water (reactions of Fischer?Tropsch (nCO + (2n+1)H2 ? CnH(2n+2) + nH2O) and Sabatier (CO2 + 4H2 ? CH4 + 2H2O)). ... Such higher specific conversion potential may have allowed for a higher volumetric conversion potential as well, which may have resulted in a faster depletion of the dissolved CO, and in turn improved the gas?liquid mass transfer rate. ... Results are reported of mixed-culture studies employing the photosynthetic bacterium Rhodospirillum rubrum for converting CO to CO2 and H2 by the water gas shift reaction and 2 methanogens, Methanobacterium formicicum and Methanosarcina barkeri, for converting CO2 and H2 to CH4. Results are presented for triculture operation in 2 types of reactors, the packed bubble column and the trickle-bed reactor. ...

Serge R. Guiot; Ruxandra Cimpoia; Gaël Carayon

2011-02-03T23:59:59.000Z

133

E-Print Network 3.0 - acidogenic anaerobic reactor Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: anaerobic digestion in the inlet of the pre-treatment zone of a plug-flow biogas reactor for biomass... -flow anaerobic reactor for domestic organic waste treatment...

134

E-Print Network 3.0 - anaerobic biogas reactors Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

biogas reactors Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic biogas reactors Page: << < 1 2 3 4 5 > >> 1 Anaerobic Co-digestion of...

135

E-Print Network 3.0 - anaerobic carbon metabolism Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 Two-Phase Production of H2CH4 Mixtures An anaerobic digestion process to produce hydrogen and methane (CH4) in Summary: Two-Phase Production of H2CH4 Mixtures An anaerobic...

136

E-Print Network 3.0 - anaerobic mixed microflora Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

137

E-Print Network 3.0 - anaerobic chloroethene-dehalogenating activity...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

138

E-Print Network 3.0 - anaerobic continuously stirred Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

or thermophilic... ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

139

E-Print Network 3.0 - anaerobic psychrophilic enrichment Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

140

E-Print Network 3.0 - anaerobic reactor systems Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sources of organic matter... -processing wastes, and industrial wastes. A typical biogas system consists of manure collection, anaerobic digestion... and carbon credits. The...

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

E-Print Network 3.0 - anaerobic stirred sequencing-batch Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Implementation of Summary: ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

142

E-Print Network 3.0 - anaerobic fitness markers Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Implementation of Summary: ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

143

E-Print Network 3.0 - anaerobically corroding iron Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This publication provides a general overview of anaero- Summary: . Scrubbing the biogas with iron-impregnated wood chips has been used in anaerobic digesters in municipal......

144

E-Print Network 3.0 - anaerobic mesophilic granular Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

145

E-Print Network 3.0 - anaerobic chlorophenol-degrading community...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

146

E-Print Network 3.0 - anaerobic conditions model Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

147

E-Print Network 3.0 - anaerobic interval training Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

148

E-Print Network 3.0 - anaerobic soil slurry Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Aberystwyth Collection: Environmental Sciences and Ecology 2 Life Cycle Assessment of Biogas from Separated slurry Summary: scenarios. In fact, anaerobic digestion of animal...

149

E-Print Network 3.0 - anaerobic fixed bed Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Implementation of Summary: ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

150

E-Print Network 3.0 - anaerobic thermophiles annual Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Implementation of Summary: ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

151

E-Print Network 3.0 - anaerobic reactor star Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

overview of anaero- Summary: dioxide (EPA AgStar 2006). Benefits and Challenges of Biogas Technology Anaerobic digestion can convert... at Virginia Tech. Most of the discussion...

152

E-Print Network 3.0 - anaerobic contact reactor Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Implementation of Summary: ;12;Abstract Anaerobic digestion of dairy manure produces biogas that can be captured and used for fuel while... offering environmental benefits. Dairy...

153

E-Print Network 3.0 - anaerobically growing xylose-utilizing...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

154

E-Print Network 3.0 - anaerobic bacterial community Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

155

E-Print Network 3.0 - anaerobic baffled reactor Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

156

E-Print Network 3.0 - anaerobic gac reactor Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resources which provide more detailed infor- mation on anaerobic digesters are listed. Biogas... Technology Biomethane (biogas) is an alternative and renewable energy source...

157

E-Print Network 3.0 - anaerobic thermophiles progress Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

due to various... returns from energy and byproduct sales. Keywords: Anaerobic digestion, biogas, cooperatives, carbon Source: Laughlin, Robert B. - Department of Physics, Stanford...

158

E-Print Network 3.0 - anaerobic bioreactor landfills Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

D... from a Full Scale Anaerobic Digester Supernatant at the City of Penticton Advanced Wastewater Treatment Source: Laval, Bernard - Department of Civil Engineering, University...

159

E-Print Network 3.0 - anaerobic biodegradation potential Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(VS) could be stabilized during three months of batch... , pyrolysis, and biological gaSification by anaerobic digestion have been in vestigated. Due to the very......

160

E-Print Network 3.0 - anaerobic upflow column Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

were hermetically sealed. Only the filter was heated... , pyrolysis, and biological gaSification by anaerobic digestion have been in vestigated. Due to the very... heterogeneous...

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

E-Print Network 3.0 - anaerobic conditions Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

chemical treatment steps on the waste streams produced... incineration or co-frring), pyrolysis, anaerobic digestion, or methanation. From a water pollution control... , centrate...

162

E-Print Network 3.0 - anaerobically induced small Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

chemical treatment steps on the waste streams produced... incineration or co-frring), pyrolysis, anaerobic digestion, or methanation. From a water pollution control... , centrate...

163

E-Print Network 3.0 - anaerobic benzene communities Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

chemical treatment steps on the waste streams produced... incineration or co-frring), pyrolysis, anaerobic digestion, or methanation. From a water pollution control... , centrate...

164

E-Print Network 3.0 - anaerobic ammonia oxidation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

chemical treatment steps on the waste streams produced... incineration or co-frring), pyrolysis, anaerobic digestion, or methanation. From a water pollution control... , centrate...

165

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

166

Batch Test for Assessing the Mineralization of 14C-Radiolabeled Compounds under Realistic Anaerobic Conditions  

Science Journals Connector (OSTI)

Environmentally realistic concentrations of test chemicals were incubated with anaerobic digester sludge in sealed vessels at 35 °C. ... Major anoxic environments include anaerobic digesters, septic tanks, organically enriched sediments, flooded soils, and landfills. ... Another rolled piece of copper screen was inserted into this end, and a pea-size piece of quartz wool was inserted into both ends. ...

Barbara A. Nuck; Thomas W. Federle

1996-11-27T23:59:59.000Z

167

Use of Combusted Natural Gas to Cultivate the Anaerobic Bacterial Flora from the Cecum Contents of Mice  

Science Journals Connector (OSTI)

...of an inert gas generator, the gas-to-air...of the inert gas generator. A small compressor...pressure of 250 mm water gauge (WG). By...of changes in the atmospheric pressure. With...temperature ofthe cooling water in the cooling jacket...of the inert gas generator. Parts: 1, stopcock...

J. P. Koopman; J. P. Van Oeveren; F. G. J. Janssen

1973-10-01T23:59:59.000Z

168

Ruminant digestion  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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).

169

Anaerobic biodegradation of cyanide under methanogenic conditions.  

Science Journals Connector (OSTI)

...cyanide analysis for many wastes. In the presence of...and nitrile polymer industries generate over three...cyanide-con- taining waste annually (31). Treatment...copper and zinc plating wastes on sludge digestion...Treatment of coal gasification wastewater with anaerobic...

R D Fallon; D A Cooper; R Speece; M Henson

1991-06-01T23:59:59.000Z

170

Anaerobic Digestion of Biowaste in Developing Countries  

E-Print Network [OSTI]

and maintenance 44 4. Utilisation of Biogas 49 4.1 Biogas storage 49 4.1.1 Low-pressure storage systems 49 4.1.2 Medium-pressure storage 52 4.1.3 High-pressure storage 52 4.2 Biogas flares 53 4.3 Conditioning of biogas 53 4.3.1 Dewatering 54 4.3.2 Desulphurisation (removal of H2 S) 55 4.3.3 Removal of CO2 57 4.4 Biogas

Wehrli, Bernhard

171

Anaerobic Digestion (AD): not only methane  

Broader source: Energy.gov [DOE]

Breakout Session 1: New Developments and Hot Topics Session 1-C: Beyond Biofuels Larry Baresi, Professor of Biology, California State University, Northridge

172

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":""}]}

173

Digestion Experiments  

E-Print Network [OSTI]

Blank in Bulletin] BULLETIN NO. 291 FEBRUARY, 1922 DIGESTION EXPERIMENTS This is the sixth bulletin in a series whose object is to ascertain the Aceding value of Texas feeding stuffs by means of digestion experiments. Previous bulletins... The productive values and the values for digestible protein in t Bulletin have been calculated from the results of digestion esperiine? with sheep. The method of conducting the experiments is described Bulletins Nos. 147 and 166 of this Station. The production...

Fraps, G. S. (George Stronach)

1922-01-01T23:59:59.000Z

174

Biogas production and feasibility of energy recovery systems for anaerobic treatment of wool-scouring effluent  

Science Journals Connector (OSTI)

The technical and economic feasibility of anaerobic digestion to produce biogas at a small wool-scouring facility in the United States was examined. The facility will process 90,800 kg (200,000 pounds) of greasy wool per year at maximum capacity. Biochemical methane potential experiments showed that anaerobic biodegradation of organic constituents in wool-scouring effluent (WSE) ranged from 17 to 75% on a chemical oxygen demand (COD) basis and produced 0.10–0.39 L methane per gram of WSE COD added. Microbial inhibition was observed when initial WSE concentrations exceeded 1000 mg COD/L. A laboratory-scale continuous reactor operated at organic loading rates of 100–200 mg COD/L/day produced biogas with an average methane content of 75% and provided 72–78% removal of total WSECOD. Life cycle costing predicted that the best alternative for energy recovery at a small wool-scouring facility was to offset natural gas used to heat water for wool-scouring with biogas. Economic feasibility should increase with increasing COD removal, increasing natural gas price, and increasing cost to discharge to the municipal wastewater treatment works. The key anaerobic treatment design challenge will be to maximize WSE organic loading rates while minimizing microbial inhibition.

Erika J. Schoen; David M. Bagley

2012-01-01T23:59:59.000Z

175

Community Renewable Energy Success Stories: Community-Scale Anaerobic  

Broader source: Energy.gov (indexed) [DOE]

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

176

PAFC fed by biogas produced by the anaerobic fermentation of the waste waters of a beet-sugar refinery  

SciTech Connect (OSTI)

Beet-washing waters of a beet-sugar refinery carry a high COD (Chemical Oxygen Demand), and their conditioning to meet legal constraints before disposal considerably contributes to the operation costs of the refinery. Their fermentation in an anaerobic digestor could instead produce readily disposable non-polluting waters, fertilizers and biogas, useful to feed a phosphoric acid fuel cell (PAFC) heat and power generator system. A real refinery case is considered in this work, where the electrical characteristics V = V(I) of a laboratory PAFC stack, fueled with a dry simulated reforming gas (having the same H{sub 2} and CO{sub 2} content as the biogas obtainable by the above said anaerobic digestion), are determined. The encouraging results show that a possible market niche for fuel cells, in the food-industry waste partial recovery and residual disposal, deserves attention.

Ascoli, A.; Elias, G. [Univ. Diegli Studi di Milano (Italy); Bigoni, L. [CISE Tecnologie Innovative S.p.A., Segrate (Italy); Giachero, R. [Du Pont Pharma Italia, Firenze (Italy)

1996-10-01T23:59:59.000Z

177

E-Print Network 3.0 - anaerobic biological reactors Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Environment & Resources Online monitoring and control Summary: . 12;12;4 2. The biogas process Anaerobic digestion is a multi-step biological process where... H drop (<6)...

178

Methane Digester Loan Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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

179

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

E-Print Network [OSTI]

Design and study of a risk management criterion for an unstable anaerobic wastewater treatment an unstable biological process used for wastewater treat- ment. This anaerobic digestion ecosystem can have popular bioprocess (Angelidaki et al., 2003) that treats wastewater and at the same time produces energy

Bernard, Olivier

180

Digestion Simulations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

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

List of Landfill Gas Incentives | Open Energy Information  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 377 Landfill Gas Incentives. CSV (rows 1 - 377) 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 Fund (Ohio) Public Benefits Fund Ohio Commercial Industrial Institutional Residential Utility Biomass CHP/Cogeneration Fuel Cells Fuel Cells using Renewable Fuels Geothermal Electric

182

Optimization Online - Digest Archive  

E-Print Network [OSTI]

Optimization Online Digest Archive. Subscribe to the digest. ... Online is supported by the Mathematical Optmization Society. Mathematical Optimization Society.

183

E-Print Network 3.0 - anaerobic conditions improve Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

online VFA monitoring system is presented, as well as the methods for improving biogas production... monitoring system for the anaerobic process, based on headspace gas...

184

E-Print Network 3.0 - anaerobic degradation processes Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and control Summary: monitoring system for the anaerobic process, based on headspace gas chromatography. Submitted. Paper III Boe... . 12;12;4 2. The biogas process...

185

E-Print Network 3.0 - anaerobic toluene degraders Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in a two-phase partitioning... as a model VMS, from aerobic and anaerobic waste gas streams were ... Source: Deshusses, Marc - Department of Chemical and Environmental...

186

Digestion time  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

187

Optimization Online - Digest  

E-Print Network [OSTI]

Complete the form below to subscribe to the free Optimization Online Digest. ... Type your e-mail address to unsubscribe from the Optimization Online Digest.

188

Improving Anaerobic Codigestion of Corn Stover Using Sodium Hydroxide Pretreatment  

Science Journals Connector (OSTI)

Lignin of the corn stover was measured according to the Laboratory Analytical Procedures (LAP) established by National Renewable Energy Laboratory (NREL). ... The methane yield per gram of corn stover is an important parameter to estimate the net energy production of the corn stover digestion. ... This means that NaOH pretreatment is an effective way to obtain higher net energy production through anaerobic codigestion of corn stover. ...

Zhaoyang You; Taoyuan Wei; Jay J. Cheng

2013-12-04T23:59:59.000Z

189

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network [OSTI]

distribution of heavy metals and other toxicants betweenaccumulation and toxicity resulting from heavy metals suchthe marine algae. Toxicity resulting from heavy metal uptake

Haven, Kendall F.

2011-01-01T23:59:59.000Z

190

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network [OSTI]

time constant algal heat of combustion (6 Kcal/gm) dilutionSource: temperature, heat of combustion, and the depth at

Haven, Kendall F.

2011-01-01T23:59:59.000Z

191

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

192

Biomass Program Perspectives on Anaerobic Digestion and Fuel...  

Broader source: Energy.gov (indexed) [DOE]

at biorefineries. Presented by Brian Duff, DOE Biomass Program, at the NRELDOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado....

193

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network [OSTI]

fuel for the boiler is sludge which is The potential residuals derived from the pressing of shredded algae.

Haven, Kendall F.

2011-01-01T23:59:59.000Z

194

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

195

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network [OSTI]

commercial farm. A biomass energy farm must cover a largeof Symposium on Energy from Biomass and Wastes, Washington,Biomass Yield Energy Content Upwelling

Haven, Kendall F.

2011-01-01T23:59:59.000Z

196

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network [OSTI]

Municipal Solid Waste-Sewage Sludge. b 4.15 SCF CH 4 / cu ftUP I j methane 31.5 scf sludge 18.61b water 161b Btu/scfsewer 65.3 lb ( 7.9 gal) sludge ash 1.74 lb stack emissions

Haven, Kendall F.

2011-01-01T23:59:59.000Z

197

Kinetics of inactivation of indicator pathogens during thermophilic anaerobic digestion  

E-Print Network [OSTI]

relationships are necessary. ª 2010 Elsevier Ltd. All rights reserved. 1. Introduction Land application the opportunity to put sewage sludge, which otherwise needs to be disposed of, towards beneficial use such as crop, enteric viruses and Salmonella spp. Land application of Class B biosolids, which require only reduction

198

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

199

MARINE BIOMASS SYSTEM: ANAEROBIC DIGESTION AND PRODUCTION OF METHANE  

E-Print Network [OSTI]

wind, and bottom conditions that repre- sent a potential large farm site, but do not reach the extremes

Haven, Kendall F.

2011-01-01T23:59:59.000Z

200

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

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

BioGas Energy Inc | Open Energy Information  

Open Energy Info (EERE)

BioGas Energy Inc BioGas Energy Inc Jump to: navigation, search Name BioGas Energy Inc Address 4509 Interlake Ave N # 222 Place Seattle, Washington Zip 98103 Sector Biomass Product Makes anaerobic digesters that convert manure into methane for fuel Website http://www.biogas-energy.com/s Coordinates 47.6163159°, -122.3463563° 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":47.6163159,"lon":-122.3463563,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

202

Methane from Anaerobic Fermentation  

Science Journals Connector (OSTI)

...removal rate; and recycling. Many studies have...di-gestion is utilized for wastewater stabili-zation...processes are used in some wastewater treatment plants...sludge is separated for recycling from the digester effluent...percent meth-ane. Many wastewater treatment plants in...

Donald L. Klass

1984-03-09T23:59:59.000Z

203

Mechanisms in anaerobic bioflocculation of wool scouring effluent  

Science Journals Connector (OSTI)

The emulsified grease in wool scouring effluent (WSE) was demonstrably removed by bioflocculation under anaerobic conditions. The addition of anaerobic bacteria from biogas digestion to WSE resulted in grease reduction of 60–80% from the supernatant. Since no significant net grease (supernatant plus sludge) reduction was observed in this system, the grease emulsion from the liquid phase is simply settled by gravity into the sludge phase. However, sterilized sludge did not cause this effect, indicating that bacterial metabolic activity was responsible for the bioflocculation. It was also found that such microbes can successfully survive and multiply in WSE, as a result, the development of a continuous process is possible. The process required a short gentle mixing period of approx. 15 min enable the the sludge to completely contact with WSE, and a longer settling period of 2–4 days to provide an appropriate time for the microbes to destabilize wool grease emulsion and settle to the sludge phase.

Wipa Lapsirikul; Goen Ho; Ralf Cord-Ruwisch

1994-01-01T23:59:59.000Z

204

Baltimore Zoo digester project. Final report. [Elephants  

SciTech Connect (OSTI)

The results of a project to produce methane using the manure from zoo animals as a feedstock is presented. Two digesters are in operation, the first (built in 1974) utilizing wastes from the Hippo House and a second (built in 1980) utilizing wastes from the Elephant House. Demonstrations on the utilization of the gas were performed during zoo exhibits. The Elephant House Digester has a capacity of 4200 gallons and a floating gas dome which can retain at least 150 cu ft of gas. Solar energy has been incorporated into the design to maintain digester temperature at 95/sup 0/F. The system produces 50 cu ft per day. After cleaning the gas, it is used to generate electricity to power an electric light, a roof fan, and an air conditioner. The gas is also used to operate a gas range and a gas lamp. During the opening day exhibit, 50 meals were cooked using the bio-gas from just 2 elephants. (DMC)

Gibson, P.W.

1980-01-01T23:59:59.000Z

205

Detection of Streptococcus pneumoniae in lower respiratory tract specimens by anaerobic culture technique.  

Science Journals Connector (OSTI)

...dard C02-enriched aerobic culture technique. These investi- gators suggest that the increased recovery of S. pneumoniae from respiratory...Laboratories) anaerobic system, whereas previous investi- gators used either a GasPak jar (BBL Microbiology Systems, Cockeysville...

R K Baesman; C L Strand

1984-04-01T23:59:59.000Z

206

E-Print Network 3.0 - acute anaerobic interval Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ecology 19 THE JOURNAL OF EXPERIMENTAL ZOOLOGY 213:405-416 (1980) Anaerobic Metabolism, Gas Exchange, and Acid-Base Summary: THE JOURNAL OF EXPERIMENTAL ZOOLOGY 213:405-416...

207

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

E-Print Network [OSTI]

reductive dechlorination of PCE. Environ. Sci. Technol 2003,588. Kim, J. O. Gaseous TCE and PCE removal by an activatedTsotsis, T. T. Degradation of PCE in an anaerobic waste gas

Popat, Sudeep Chandrakant

2010-01-01T23:59:59.000Z

208

Analysis, anaerobic treatment and ozonation of wool scouring wastewater  

SciTech Connect (OSTI)

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

209

Turkey vs. human digestion  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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...

210

Steam Digest 2001  

SciTech Connect (OSTI)

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

211

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 (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 (<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

212

Reading Comprehension - Digestion and Nutrition  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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 _________

213

Anxiety and Digestion  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

214

Anaerobic bacteria from hypersaline environments.  

Science Journals Connector (OSTI)

...saline habitats such as solar salterns, which may...organic carbon and energy sources. The anaerobic...Lake Assal (East Africa), Na+ 27 28 OLLIVIER...bacterium (47) from a solar saltern (Haloanaerobacter...diversity of carbon and energy sources used by currently...

B Ollivier; P Caumette; J L Garcia; R A Mah

1994-03-01T23:59:59.000Z

215

Composting of the solid fraction of digestate derived from pig slurry: Biological processes and compost properties  

Science Journals Connector (OSTI)

Abstract The aim of this paper was to assess the characteristics of the solid fractions (SF) obtained by mechanical separation of digestate, their compostability and compost quality. To do so, the SF of digestates obtained from anaerobic digestion of pig slurry, energy crops and agro-industrial residues were sampled in five plants located in Northern Italy. Results obtained indicated that anaerobic digestion by itself promoted the high biological stability of biomasses with a Potential Dynamic Respiration Index (PDRI) close to 1000 mgO2 kg V S?1 h?1. Subsequent composting of digestates, with an added bulking agent, did not give remarkably different results, and led only to a slight modification of the characteristics of the initial non-composted mixtures; the composts obtained fully respected the legal limits for high quality compost. Chemical studies of organic matter composition of the biomasses by using CP MAS 13C NMR, indicated that the compost was composed of a high relative content of O-alkyl-C (71.47% of total C) (cellulose and hemicelluloses) and a low alkyl-C (12.42%) (i.e. volatile fatty acids, steroid-like molecules, aliphatic biopolymers and proteins).

Fulvia Tambone; Laura Terruzzi; Barbara Scaglia; Fabrizio Adani

2014-01-01T23:59:59.000Z

216

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

217

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

SciTech Connect (OSTI)

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

218

Potential digestibilities and digestion kinetics of forage cell wall components  

E-Print Network [OSTI]

LITERATURE REVIEW. EXPERIMENTAL PROCEDURES. Chemical Analysis Colorimetric Determinations Statistical Evaluation. 10 13 15 IV RESULTS AND DISCUSSION 16 V Characteristics of Forage Kinetics of Cell Wall Digestion SUMMARY AND CONCLUSIONS... and both of these variables appear to be the result of several dynamic processes. The amount of structural carbohydrates, the main constituents of the fibrous cell wall, ruminants can digest appears to be limited by the potential digestibility...

Tauskey, William Henry

1973-01-01T23:59:59.000Z

219

Anaerobic utilization of essential oils bydenitrifying bacteria  

Science Journals Connector (OSTI)

Plant volatile organic compounds are a major carbonsource in nature. We studied the degradability ofthese substances by anaerobic microorganisms inenrichment cultures with representative essential oilsas organ...

Jens Harder

2000-01-01T23:59:59.000Z

220

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

SciTech Connect (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

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

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

SciTech Connect (OSTI)

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

222

Emission difference between natural gas usage and digester gas usage.  

E-Print Network [OSTI]

??M.S. It is important to burn the air toxics and harmful gases which come from water and wastewater treatment processes. In common practice, instead of… (more)

Ghorbanian, Mahyar, 1986-

2010-01-01T23:59:59.000Z

223

California: Microturbine Protects Environment, Creates Jobs ...  

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

wide range of fuels using existing infrastructure including natural gas, landfill gas, biogas generated from anaerobic digesters, and syngas. While many commercial, industrial, and...

224

ITP Industrial Distributed Energy: CHP GUIDE #1 - Q & A ON COMBINED...  

Broader source: Energy.gov (indexed) [DOE]

CHP systems can combust propane, fuel oil, hydrogen, landfill or anaerobic digester gas--providing a hedge against rising natural gas costs. * Improved Indoor Air Quality...

225

Siting Requirements for Anaerobic Lagoons (Iowa)  

Broader source: Energy.gov [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...

226

Life cycle greenhouse gas impacts of ethanol, biomethane and limonene production from citrus waste  

Science Journals Connector (OSTI)

The production of biofuel from cellulosic residues can have both environmental and financial benefits. A particular benefit is that it can alleviate competition for land conventionally used for food and feed production. In this research, we investigate greenhouse gas (GHG) emissions associated with the production of ethanol, biomethane, limonene and digestate from citrus waste, a byproduct of the citrus processing industry. The study represents the first life cycle-based evaluations of citrus waste biorefineries. Two biorefinery configurations are studied—a large biorefinery that converts citrus waste into ethanol, biomethane, limonene and digestate, and a small biorefinery that converts citrus waste into biomethane, limonene and digestate. Ethanol is assumed to be used as E85, displacing gasoline as a light-duty vehicle fuel; biomethane displaces natural gas for electricity generation, limonene displaces acetone in solvents, and digestate from the anaerobic digestion process displaces synthetic fertilizer. System expansion and two allocation methods (energy, market value) are considered to determine emissions of co-products. Considerable GHG reductions would be achieved by producing and utilizing the citrus waste-based products in place of the petroleum-based or other non-renewable products. For the large biorefinery, ethanol used as E85 in light-duty vehicles results in a 134% reduction in GHG emissions compared to gasoline-fueled vehicles when applying a system expansion approach. For the small biorefinery, when electricity is generated from biomethane rather than natural gas, GHG emissions are reduced by 77% when applying system expansion. The life cycle GHG emissions vary substantially depending upon biomethane leakage rate, feedstock GHG emissions and the method to determine emissions assigned to co-products. Among the process design parameters, the biomethane leakage rate is critical, and the ethanol produced in the large biorefinery would not meet EISA's requirements for cellulosic biofuel if the leakage rate is higher than 9.7%. For the small biorefinery, there are no GHG emission benefits in the production of biomethane if the leakage rate is higher than 11.5%. Compared to system expansion, the use of energy and market value allocation methods generally results in higher estimates of GHG emissions for the primary biorefinery products (i.e., smaller reductions in emissions compared to reference systems).

Mohammad Pourbafrani; Jon McKechnie; Heather L MacLean; Bradley A Saville

2013-01-01T23:59:59.000Z

227

Mechanism of degradation of wool wax in the anaerobic treatment of woolscouring wastewater  

Science Journals Connector (OSTI)

Results of the anaerobic digestion of a woolscouring wastewater treatment and some considerations about the anaerobic degradation mechanisms of wool wax, are presented. A 57 live anaerobic baffled reactor (ABR) was operated with woolscouring effluent. When organic load varied from 3 to 5 kg COD/m3 d, COD and grease removal ranged from 40 to 55% and 50 to 65%, respectively. With centrifuged effluent, COD removal was 45% to 60%. A 300 m3 ABR was built and operated during two years based on the previous laboratory results. COD removal was between 45% to 18% with organic load of 3 to 10 kg COD/m3 d. With centrifuged effluent, COD efficiencies ranged between 72% and 47%. No inhibition by long chain fatty acids was observed. Considering the results of grease content determination and TLC analysis in both reactors, it could be assumed that wool wax is hydrolyzed forming sterols and free fatty acids and that free fatty acids are degraded while sterols are accumulated in the sludge.

Soledad Gutiérrez; Alberto Hernández; María Viñas

1999-01-01T23:59:59.000Z

228

Anaerobic conversion of microalgal biomass to sustainable energy carriers – A review  

Science Journals Connector (OSTI)

This review discusses anaerobic production of methane, hydrogen, ethanol, butanol and electricity from microalgal biomass. The amenability of microalgal biomass to these bioenergy conversion processes is compared with other aquatic and terrestrial biomass sources. The highest energy yields (kJ g?1 dry wt. microalgal biomass) reported in the literature have been 14.8 as ethanol, 14.4 as methane, 6.6 as butanol and 1.2 as hydrogen. The highest power density reported from microalgal biomass in microbial fuel cells has been 980 mW m?2. Sequential production of different energy carriers increases attainable energy yields, but also increases investment and maintenance costs. Microalgal biomass is a promising feedstock for anaerobic energy conversion processes, especially for methanogenic digestion and ethanol fermentation. The reviewed studies have mainly been based on laboratory scale experiments and thus scale-up of anaerobic utilization of microalgal biomass for production of energy carriers is now timely and required for cost-effectiveness comparisons.

Aino-Maija Lakaniemi; Olli H. Tuovinen; Jaakko A. Puhakka

2013-01-01T23:59:59.000Z

229

E-Print Network 3.0 - anaerobic acid-resistant bacterium Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Quantification of Methanogenic Groups in Anaerobic... February 1994 The microbial community structure of anaerobic biological reactors was evaluated by using... ,...

230

E-Print Network 3.0 - anaerobic thermohalophilic bacterium Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Quantification of Methanogenic Groups in Anaerobic... February 1994 The microbial community structure of anaerobic biological reactors was evaluated by using... ,...

231

E-Print Network 3.0 - anaerobic bacterium anaerocellum Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Quantification of Methanogenic Groups in Anaerobic... February 1994 The microbial community structure of anaerobic biological reactors was evaluated by using... ,...

232

Greenhouse gas emission by wastewater treatment plants of the pulp and paper industry – Modeling and simulation  

Science Journals Connector (OSTI)

Abstract Greenhouse gas (GHG) emission and energy consumption in wastewater treatment plants (WWTPs) of the pulp and paper industry were modeled and estimated. Aerobic, anaerobic, and hybrid biological processes were used for the removal of contaminants. In addition to the removal of carbonaceous compounds, anaerobic digestion of the produced sludge and the removal of excess nitrogen in the effluent of treatment plants by nitrification/denitrification processes were incorporated in the model. Carbon dioxide, methane, and nitrous oxide were the major \\{GHGs\\} generated during the biological treatment, combustion, energy generation, and transportation. The generated biogas from the anaerobic processes was assumed to be recovered and used as a source of energy for the treatment plant, in an effort to reduce GHG emissions while decreasing the total energy needs of the WWTP. The established kinetic relationships of wastewater treatment processes along with mass and energy balances were employed for the simulation of different treatment systems and estimation of GHG emissions. Various sources of GHG emission were divided into on-site and off-site sources to simplify the modeling and simulation procedure. The overall GHG generation in the presence of biogas recovery was equal to 1.576, 3.026, and 3.271 kg CO2-equivalent/kg BOD by the three examined systems. The energy produced by the recovery and combustion of biogas could exceed the energy demands of all different treatment plants examined in this study and reduce off-site GHG emission. The generation of \\{GHGs\\} from aerobic and hybrid processes increased by 27% and 33.2%, respectively, when N2O emission from nitrogen removal processes was taken into consideration.

Omid Ashrafi; Laleh Yerushalmi; Fariborz Haghighat

2013-01-01T23:59:59.000Z

233

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":""}]}

234

Diversity of Anaerobic Microbes in Spacecraft Assembly Clean Rooms  

Science Journals Connector (OSTI)

...anaerobic bacteria were preferentially enriched under the cultural conditions used, making...study bacterial population dynamics during uranium reduction and reoxidation. Appl. Environ...cultivation-based analyses. The results reveal that highly diverse anaerobic bacterial populations...

Alexander Probst; Parag Vaishampayan; Shariff Osman; Christine Moissl-Eichinger; Gary L. Andersen; Kasthuri Venkateswaran

2010-03-12T23:59:59.000Z

235

Biochemistry and Evolution of Anaerobic Energy Metabolism in Eukaryotes  

Science Journals Connector (OSTI)

...this review is to survey energy metabolism-with...the light or in the dark (425), if needed...perspective, anaerobic energy metabolism in eukaryotes...eukaryotes than other surveys might imply (15...involved in anaerobic energy metabolism in eukaryotes...

Miklós Müller; Marek Mentel; Jaap J. van Hellemond; Katrin Henze; Christian Woehle; Sven B. Gould; Re-Young Yu; Mark van der Giezen; Aloysius G. M. Tielens; William F. Martin

2012-06-01T23:59:59.000Z

236

Biochemistry and physiology of anaerobic bacteria  

SciTech Connect (OSTI)

We welcome you to The Power of Anaerobes. This conference serves two purposes. One is to celebrate the life of Harry D. Peck, Jr.,who was born May 18, 1927 and would have celebrated his 73rd birthday at this conference. He died November 20, 1998. The second is to gather investigators to exchange views within the realm of anaerobic microbiology, an area in which tremendous progress has been seen during recent years. It is sufficient to mention discoveries of a new form of life (the archaea), hyper or extreme thermophiles, thermophilic alkaliphiles and anaerobic fungi. With these discoveries has come a new realization about physiological and metabolic properties of microorganisms, and this in turn has demonstrated their importance for the development, maintenance and sustenance of life on Earth.

NONE

2000-05-18T23:59:59.000Z

237

Effects of Temperature on Aerobic Treatment of Anaerobically Digested Palm Oil Mill Effluent (POME)  

Science Journals Connector (OSTI)

wool scouring ww ... The TCOD removal efficiencies at thermophilic conditions fall in an acceptable range between 72?80% although the values were lower than the TCOD removal efficiency at mesophilic conditions (95%). ... Figure 4 shows that the efficiency of BOD removal decreased when the temperature increased from mesophilic to thermophilic range; with an operating temperature of 28 °C (97% BOD removal) being the most efficient while the least efficient was at 55 °C (76% BOD removal). ...

Yi Jing Chan; Mei Fong Chong; Chung Lim Law

2010-07-02T23:59:59.000Z

238

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

E-Print Network [OSTI]

for the energetic recovery of cell biomass. Lastly, the ability of these CO2 consuming30 microalgae to purify biogas potential, codigestion,34 pretreatment, biogas, CO2 mitigation, biofuel35 36 Contents37 38 1 Introduction....................................................................................... 545 2.3.3 Biogas quality

Boyer, Edmond

239

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

240

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

E-Print Network [OSTI]

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...

Foucault, Lucas Jose

2011-10-21T23:59:59.000Z

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

Anaerobic Digestion of Renewable Biomass: Thermophilic Temperature Governs Methanogen Population Dynamics  

Science Journals Connector (OSTI)

...maize from a biogas plant in Nordhausen, Germany), 1/3 sewage sludge (from a wastewater treatment plant [WWTP] in Geesthacht, Germany), and 1/3 hot-rot compost suspension (compost from grass and garden greens, without solids). After a couple...

Niclas Krakat; A. Westphal; S. Schmidt; P. Scherer

2010-01-22T23:59:59.000Z

242

Ozone treatment of biomass to enhance digestibility  

E-Print Network [OSTI]

is very resistant to enzymatic degradation. Lignocellulosic materials require pretreatment to enhance their digestibility. The main objective of this research was to further enhance the digestibility of biomass (bagasse) with ozonation as a follow...

Almendarez, Maria Elena

2000-01-01T23:59:59.000Z

243

?enseignement de ?endoscopie digestive en Italie  

Science Journals Connector (OSTI)

En Italie, nous disposons de deux écoles de postgraduat : Gastroentérologie et Endoscopie Digestive et ?autre part : Chirurgie Digestive et Endoscopie Chirurgicale. Le premier cours dure quatre ans, le second cin...

A. Russo

1991-07-01T23:59:59.000Z

244

Anaerobic treatment of gasifier effluents. Quarterly report  

SciTech Connect (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

245

PRINCIPLES CONCERNING THE ISOLATION OF ANAEROBES STUDIES IN PATHOGENIC ANAEROBES. II  

Science Journals Connector (OSTI)

...L. 1902 Ueber die Garung der Cellulose. Ibid., 81, 226. OMELIANSKY, W. L. 1904 Ueber die Trennung der Wasserstoff und Methan- gaihrung der Cellulose. Ibid. 11, 369, 703. PFUHL, E. 1907 Die Zuchtung anaerober Bakterien in Leberbouillon...

Hilda Hempl Heller

1921-09-01T23:59:59.000Z

246

Carbon dioxide removal and capture for landfill gas up-grading  

Science Journals Connector (OSTI)

Within the frame of an EC financially supported project - LIFE05 ENV/IT/000874 GHERL (Greenhouse Effect Reduction from Landfill)–a pilot plant was set up in order to demonstrate the feasibility of applying chemical absorption to remove carbon dioxide from landfill gas. After proper upgrading - basically removal of carbon dioxide, hydrogen sulphide, ammonia and other trace gas compound–the gas might be fed into the distribution grid for natural gas or used as vehicle fuel, replacing a fossil fuel thus saving natural resources and carbon dioxide emissions. Several experiences in Europe have been carried out concerning the landfill gas - and biogas from anaerobic digestion - quality up-grading through CO2 removal, but in all of them carbon dioxide was vented to the atmosphere after separation, without any direct benefit in terms of greenhouse gases reduction. With respect to those previous experiences, in this work the attention was focused on CO2 removal from landfill gas with an effective capture process, capable of removing carbon dioxide from atmosphere, through a globally carbon negative process. In particular, processes capable of producing final solid products were investigated, with the aim of obtaining as output solid compounds which can be either used in the chemical industry or disposed off. The adopted absorption process is based on using aqueous solutions of potassium hydroxide, with the final aim of producing potassium carbonate. Potassium carbonate is a product which has several applications in the chemical industry if obtained with adequate quality. It can be sold as a pulverised solid, or in aqueous solution. Several tests were carried out at the pilot plant, which was located at a landfill site, in order to feed it with a fraction of the on-site collected landfill gas. The results of the experimental campaign are reported, explained and commented in the paper. Also a discussion on economic issues is presented.

Lidia Lombardia; Andrea Corti; Ennio Carnevale; Renato Baciocchi; Daniela Zingaretti

2011-01-01T23:59:59.000Z

247

Tax Credits, Rebates & Savings | Department of Energy  

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

Rebates & Savings Tax Credits, Rebates & Savings Anaerobic Digester Gas-to-Electricity Rebate and Performance Incentive Note: This program is not currently accepting applications....

248

NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form  

Broader source: Energy.gov (indexed) [DOE]

2010-2012 Franklin County, PA PA Green Energy Works Targeted Grant - Native Energy Biogas Project Install small anaerobic digester (less than 75' x 75'), solids separator, gas...

249

Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power- Fact Sheet, 2011  

Broader source: Energy.gov [DOE]

Factsheet describing project objective to develop a new, high-capacity, expendable sorbent to remove sulfur species from anaerobic digester gas

250

Low dimensional model of heart rhythm dynamics as a tool for diagnosing the anaerobic threshold  

SciTech Connect (OSTI)

We report preliminary results on describing the dependence of the heart rhythm variability on the stress level by using qualitative, low dimensional models. The reconstruction of macroscopic heart models yielding cardio cycles (RR-intervals) duration was based on actual clinical data. Our results show that the coefficients of the low dimensional models are sensitive to metabolic changes. In particular, at the transition between aerobic and aerobic-anaerobic metabolism, there are pronounced extrema in the functional dependence of the coefficients on the stress level. This strong sensitivity can be used to design an easy indirect method for determining the anaerobic threshold. This method could replace costly and invasive traditional methods such as gas analysis and blood tests. {copyright} {ital 1997 American Institute of Physics.}

Anosov, O.L. [Institute of Physiology, Charite Humboldt-University at Berlin, Berlin, D-10117 (Germany)] [Regional. Cardio Center, Vladimir, (Russia); Butkovskii, O.Y. [Vladimir State Technical University, 87, Gorki St., Vladimir, 600026 (Russia); Kadtke, J. [Institute for Pure and Applied Physical Science University of California at San Diego, La Jolla, California 92093-0360 (United States); Kravtsov, Y.A. [Space Research Institute of RAS, 84/32 Profsoyuznaja St., Moscow, 117810 (Russia); Protopopescu, V. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6364 (United States)

1997-05-01T23:59:59.000Z

251

Anaerobic bioflocculation of wool scouring effluent  

Science Journals Connector (OSTI)

A two-stage anaerobic bioflocculation process (ABP) successfully flocculated a high grease (> 15 g/l) wool scouring effluent (WSE). During 110 days of continuous operation, a two-stage laboratory process removed between 70 and 90% grease and 60–86% COD at a combined hydraulic residence time (HRT) of 4–10 days. Grease removal was more difficult with low grease (<10 g/l) WSE. At a HRT of 3 days a single-stage ABP removed 40 and 44% grease at 20 and 37°C, respectively. Methane production and volatile fatty acids consumption were negligible. Most of the grease was removed by flocculation as a result of anaerobic bacterial activity. The supernatant was successfully treated by an aerobic activated sludge process reducing grease concentration from about 1.5 to less than 0.1 g/l in the final effluent at an HRT of 3 days.

Wipa Lapsirikul; Ralf Cord-Ruwisch; Goen Ho

1994-01-01T23:59:59.000Z

252

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

E-Print Network [OSTI]

gas production (kWh/day)   Electricity generation (kWh/day) from biogas  Present value of capital cost production of methane gas from the anaerobic digestion of animal waste.  The system  design costs and production of methane gas from the anaerobic  digestion of existing agricultural residues.  The system design costs and 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

253

Degradation of Triclosan under Aerobic, Anoxic, and Anaerobic Conditions  

Science Journals Connector (OSTI)

Triclosan (2, 4, 4?-trichloro-2? ... consumables. Aerobic and anaerobic enrichment cultures tolerating triclosan were developed and 77 bacterial strains tolerating triclosan at different levels were isolated from...

Prajeesh Gangadharan Puthiya Veetil…

2012-07-01T23:59:59.000Z

254

E-Print Network 3.0 - anaerobic ultramicrobacteria belonging...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of bacterial... belonged to the -, -, and -Proteobacteria, the Actinobacteria, and the CFB groups. The only uncultured... this group are facultatively or obligately anaerobic...

255

Directed Evolution of a Cellodextrin Transporter for Improved Biofuel Production Under Anaerobic  

E-Print Network [OSTI]

Directed Evolution of a Cellodextrin Transporter for Improved Biofuel Production Under Anaerobic that anaerobic biofuel production could be significantly improved via directed evolution of a sugar transporter: cellodextrin transporter; cellobiose utilization; cellulosic biofuel; anaerobic fermentation; directed

Zhao, Huimin

256

System for chemically digesting low level radioactive, solid waste material  

DOE Patents [OSTI]

An improved method and system for chemically digesting low level radioactive, solid waste material having a high through-put. The solid waste material is added to an annular vessel (10) substantially filled with concentrated sulfuric acid. Concentrated nitric acid or nitrogen dioxide is added to the sulfuric acid within the annular vessel while the sulfuric acid is reacting with the solid waste. The solid waste is mixed within the sulfuric acid so that the solid waste is substantilly fully immersed during the reaction. The off gas from the reaction and the products slurry residue is removed from the vessel during the reaction.

Cowan, Richard G. (Kennewick, WA); Blasewitz, Albert G. (Richland, WA)

1982-01-01T23:59:59.000Z

257

Feasibility study for alternate fuels production: unconventional natural gas from wastewater treatment plants. Volume II, Appendix D. Final report  

SciTech Connect (OSTI)

Data are presented from a study performed to determined the feasibility of recovering methane from sewage at a typical biological secondary wastewater treatment plant. Three tasks are involved: optimization of digester gas; digester gas scrubbing; and application to the East Bay Municipal Utility District water pollution control plant. Results indicate that excess digester gas can be used economically at the wastewater treatment plant and that distribution and scrubbing can be complex and costly. (DMC) 193 references, 93 figures, 26 tables.

Overly, P.; Tawiah, K.

1981-12-01T23:59:59.000Z

258

Statistical Digest No. 70 Fishery Statistics of  

E-Print Network [OSTI]

. These statistics include data on the volume and value of landed catches, employment, quantity of gear operatedStatistical Digest No. 70 Statistics of the United States 1976 Washington National Marine Fisheries Service #12;#12;Statistical Digest No. 70 Fishery Statistics of the United States

259

Chemical Reactor Analysis and Optimal Digestion  

E-Print Network [OSTI]

J 310 Chemical Reactor Analysis and Optimal Digestion An optimal digestion theory can be readily derived from basic principles o f chemical reactor analysis and design Deborah L. Penry and Peter for formulating and solving optimization problems (Bellman 1957), the entire process is optimized only

Jumars, Pete

260

E-Print Network 3.0 - anaerobic digestor methanothrix Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The main factors that affect the economic viability of anaerobic digestors... of the biogas and the energy required to heat the digestor). Anaerobic digestors are normally...

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

E-Print Network 3.0 - anaerobic biosurfactant production Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(1990) Received 25th January Summary: ). High Solids Anaerobic Fermentation for Biogas and Compost Production. Biomass 16, 173-182. Owen, W... Reactor for Anaerobic...

262

E-Print Network 3.0 - anaerobic ammonium-oxidizing bacteria Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

organic waste, converting... of anaerobic bacteria, these compounds decompose to yield a biogas that comprises of methane (CH.) and carbon... not processed anaerobically. The...

263

E-Print Network 3.0 - anaerobic bacteria thermoanaerobacter Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

organic waste, converting... of anaerobic bacteria, these compounds decompose to yield a biogas that comprises of methane (CH.) and carbon... not processed anaerobically. The...

264

E-Print Network 3.0 - anaerobic selenate-respiring bacteria Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

organic waste, converting... of anaerobic bacteria, these compounds decompose to yield a biogas that comprises of methane (CH.) and carbon... not processed anaerobically. The...

265

E-Print Network 3.0 - anaerobic laboratory conditions Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

from pasturelands that received biosolids (anaerobic and aerobiclime stabilized... (Hale et al., 2000), indicating modest degradation in anaerobic sediments. Leachate from a...

266

E-Print Network 3.0 - alkaline anaerobic respiration Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 3 4 5 > >> 1 The Effects of Benthic Organic Matter Quality on Aerobic and Anaerobic Sediment Metabolism in West Falmouth Harbor Summary: , respectively. Anaerobic respiration...

267

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

Broader source: Energy.gov (indexed) [DOE]

8: Apache Tomcat HTTP DIGEST Authentication Weaknesses Let Remote Users Conduct Bypass Attacks T-728: Apache Tomcat HTTP DIGEST Authentication Weaknesses Let Remote Users Conduct...

268

Fermentation and Anaerobic Respiration by Rhodospirillum rubrum and Rhodopseudomonas capsulata  

Science Journals Connector (OSTI)

...anaero- bic, dark conditions are...widespread than the survey indicated. With...of anaerobic, dark growth. Growth...sole carbon and energy source. No accessory...no anaerobic, dark growth of R...oxi- dized by energy-yielding reactions...assistance. The strain survey was performed...

J. E. Schultz; P. F. Weaver

1982-01-01T23:59:59.000Z

269

Waste-to-Energy Road Mapping Workshop  

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

Hydrothermal Liquefaction Heat, Char, Bio-oil, Syngas ANAEROBIC DIGESTION AND BIOGAS 7 * Biological, naturally occurring ANAEROBIC DIGESTION PROCESS 8 Anaerobic Digestion...

270

E-Print Network 3.0 - anaerobic granular sludge Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

sludge Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic granular sludge...

271

Enteric bacteria in aerobically digested sludge.  

Science Journals Connector (OSTI)

...Research Article Enteric bacteria in aerobically digested sludge. S R Farrah G Bitton Indicator bacteria, Salmonella...aerobic bacteria were determined in samples of undigested sludge and sludge that had been treated by one or two stages of aerobic...

S R Farrah; G Bitton

1984-04-01T23:59:59.000Z

272

BETO Ranks High in Biofuels Digest’s Top 125 in the Advanced Bioeconomy  

Broader source: Energy.gov [DOE]

Biofuels Digest recently released its “Top 125 in the Advanced Bioeconomy,” ranking Bioenergy Technologies Office (BETO) Director Dr. Jonathan Male , Deputy Director Dr. Valerie Reed, Technology...

273

Desulfurization of Digester Gas on Industrial-Sludge-Derived Adsorbents  

Science Journals Connector (OSTI)

The performance of adsorbents in the breakthrough tests is summarized in Tables 1 and 2, where besides the capacity expressed in milligrams per unit mass of an adsorbent or in milligrams per unit bed volume, the amount of water adsorbed during prehumidification, bed density, and pH before and after exposure to DG are listed. ... Probably the most important negative effect can be linked to the engagement of magnesium and calcium oxides in the carbonate entities, which, besides lowering surface pH and thus the number of HS- ions formed, limits the extent of reactions 2 and 7. Nevertheless, the performance of our adsorbents in desulfurization of DG is better than that of catalytically activated carbons, such as Midas or DarcoH2S, for which 73 and 39 mg/g of H2S adsorbed, respectively, was reported. ... result in adsorbents whose capacity, although smaller than that for the single-component waste oil sludge-based adsorbent, is high compared to that of conventional activated carbons. ...

Mykola Seredych; Teresa J. Bandosz

2007-01-12T23:59:59.000Z

274

Biochemistry and Evolution of Anaerobic Energy Metabolism in Eukaryotes  

Science Journals Connector (OSTI)

...Evolution of Anaerobic Energy Metabolism in Eukaryotes...Rockefeller University, New York, New York, USA b Department...ATP synthesis (energy metabolism) in...Marcel Dekker Inc, New York, NY. 344. Mulder...Carbohydrate and energy metabolism of Tritrichomonas...

Miklós Müller; Marek Mentel; Jaap J. van Hellemond; Katrin Henze; Christian Woehle; Sven B. Gould; Re-Young Yu; Mark van der Giezen; Aloysius G. M. Tielens; William F. Martin

2012-06-01T23:59:59.000Z

275

Modeling for Anaerobic Fixed-Bed Biofilm Reactors  

SciTech Connect (OSTI)

The specific objectives of this research were: 1. to develop an equilibrium model for chemical aspects of anaerobic reactors; 2. to modify the equilibrium model for non-equilibrium conditions; 3. to incorporate the existing biofilm models into the models above to study the biological and chemical behavior of the fixed-film anaerobic reactors; 4. to experimentally verify the validity of these models; 5. to investigate the biomass-holding ability of difference packing materials for establishing reactor design criteria.

Liu, B. Y. M.; Pfeffer, J. T.

1989-06-01T23:59:59.000Z

276

Anaerobic fermentation of agricultural residue: potential for improvement and implementation. Final report, Volume II  

SciTech Connect (OSTI)

Earlier studies have shown that although large quantities of agricultural residues are generated on small farms, it was difficult to economically justify use of conventional anaerobic digestion technology, such as used for sewage sludge digestion. A simple, unmixed, earthen-supported structure appeared to be capable of producing significant quantities of biogas at a cost that would make it competitive with many existing fuels. The goal of this study was to define and demonstrate a methane fermentation technology that could be practical and economically feasible on small farms. This study provides the first long term, large scale (reactor volumes of 34 m/sup 3/) parallel testing of the major theory, design, construction, and operation of a low cost approach to animal manure fermentation as compared to the more costly and complex designs. The main objectives were to define the lower limits for successful fermentor operation in terms of mixing, insulation, temperature, feed rate, and management requirements in a cold climate with both pilot scale and full scale fermentors. Over a period of four years, innovative fermentation processes for animal manures were developed from theoretical concept to successful full scale demonstration. Reactors were sized for 50 to 65 dairy animals, or for the one-family dairy size. The results show that a small farm biogas generation system that should be widely applicable and economically feasible was operated successfully for nearly two years. Although this low cost system out-performed the completely mixed unit throughout the study, perhaps the greatest advantage of this approach is its ease of modification, operation, and maintenance.

Jewell, W. J.; Dell'orto, S.; Fanfoni, K. J.; Hayes, T. D.; Leuschner, A. P.; Sherman, D. F.

1980-04-01T23:59:59.000Z

277

Innovative wastewater treatment using reversing anaerobic upflow system (RAUS)  

SciTech Connect (OSTI)

Anaerobic processes are widely popular in the treatment of a variety of industrial wastewaters since the development of such high rate treatment processes like upflow anaerobic sludge blanket (UASB), anaerobic filter, and the fluidized-bed process. In order to devise a low cost/high technology system so that it would provide an economical solution to environmentally sound pollution control, the Reversing Anaerobic Upflow System (RAUS) was developed. The system consists of two anaerobic reactors connected to each other. At the beginning, one reactor is fed upwards with wastewater while the other acts as a settling tank. After a set interval of time, the flow is reversed such that the second reactor is fed with wastewater and the first one acts as the settler. This particular feeding pattern had shown improved settling characteristics and granulation of methanogenic biomass from research carried out at the Hannover University with different wastewaters. The biological reaction vessels to which wastewater is introduced intermittently functions basically as a sludge blanket type reactor although the costly integrated settling devices present in a typical UASB system are avoided. The RAUS combines three principle reactor configurations: (1) conventional with sludge recycling; (2) fill and draw or sequential batch, inflow maintained constant during feeding; (3) upflow anaerobic sludge blanket. A pilot scale RAUS was operated for 400 days using distillery wastewater consisting of molasses slop and bottle washing water mixed in the ratio 1:1. This paper discusses the results of pilot scale experiments.

Basu, S.K. [Univ. of Manitoba, Winnipeg, Manitoba (Canada). Environmental Engineering Div.

1996-11-01T23:59:59.000Z

278

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

279

Digestion Experiments With Texas Feeding Stuffs.  

E-Print Network [OSTI]

477-514-15m TEXAS AGRICULTURAL EXPERIMENT STATION BULLETIN NO. 166. MAK, 1914 DIVISION OF CHEMISTRY Digestion Experiments With Texas Feeding Stuffs Digeisston oExxprp gmWmhETa FdWSEu oEfTm1a ep2Wu VON BOECKMANN-JONES CO., PRINTERS, AUSTIN... EXPERIMENTS WITH TEXAS FEEDING STUFFS B Y Gr. S. PRAPS., P H . D., Chemist. This bulletin contains the results of digestion tests with the ordi? nary fodder groups of certain feeding stuffs. Other results have been published in Bulletin 149...

Fraps, G. S.

1914-01-01T23:59:59.000Z

280

Digestion Experiments on Men with Cottonseed Meal.  

E-Print Network [OSTI]

in Charge W . Z. M i l l e r , B . S., Scientific Assistant , Animal Husbandman SUBSTATION NO . 6 : Krum, Denton County D IV ISION OF EN TOM OLOGY T - W - B u e l l , B . S., Superintendent W ilm on N ew e ll , M . S., Entomologist in SUBSTATION... beings. Mendel and Fine (J . Biol. Chem. I I , I ) fed cottonseed flour to dogs and found that 71.6 per cent of the proteins were digested, on an average, and when meat was fed to the same animals that 91.0 per cent protein was digested. Since...

Rather, J. B. (James Burness)

1913-01-01T23:59:59.000Z

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

Enrichment and optimization of anaerobic bacterial mixed culture for conversion of syngas to ethanol  

Science Journals Connector (OSTI)

Abstract The main aim of the present study was to enrich anaerobic mixed bacterial culture capable of producing ethanol from synthesis gas fermentation. Screening of thirteen anaerobic strains together with enrichment protocol helped to develop an efficient mixed culture capable of utilizing syngas for ethanol production. Physiological and operational parameters were optimized for enhanced ethanol production. The optimized value of operational parameters i.e. initial media pH, incubation temperature, initial syngas pressure, and agitation speed were 6.0 ± 0.1, 37 °C, 2 kg cm?2 and 100 rpm respectively. Under these conditions ethanol and acetic acid production by the selected mixed culture were 1.54 g L?1 and 0.8 g L?1 respectively. Furthermore, up-scaling studies in semi-continuous fermentation mode further enhanced ethanol and acetic acid production up to 2.2 g L?1 and 0.9 g L?1 respectively. Mixed culture TERI SA1 was efficient for ethanol production by syngas fermentation.

Ashish Singla; Dipti Verma; Banwari Lal; Priyangshu M. Sarma

2014-01-01T23:59:59.000Z

282

Limiting factors and microbial organometallic transformations in anaerobic subsurface environments  

SciTech Connect (OSTI)

Microbial communities from subsurface materials were analyzed for microbial community-particle size relationships, effects of arsenic and mercury compounds on microbial community structure, and limiting factors influencing mercury volatilization under aerobic and anaerobic conditions. The microbial communities showed strong relationships to particle size and size distribution. Major differences were found in relation to aerobic and anaerobic populations and for aerobic populations between the largest and smallest fractions. Under aerobic conditions, a significant increase in low nutrient responsive microbes occurred. After exposure to four metal compounds (phenylmercuric acetate (PMA), mercuric chloride (HgCl{sub 2}), phenylarsonic acid (PAA), and sodium arsenate (Na{sub 2}AsO{sub 4})) major changes in populations occurred. Previous exposure to these metals increased the aerobic and anaerobic populations of GS-9, indicating an adaptive response. In GS-20, previous exposure to all four compounds caused a decrease in both the aerobic and anaerobic populations. The effect was most pronounced in sediments treated with PMA or HgCl{sub 2}. Limiting nutritional factors for the volatilization of mercury under aerobic and anaerobic conditions were identified in control and PMA impacted samples from GS-9 and GS-20.

Klein, D.A.

1989-12-01T23:59:59.000Z

283

Methanosarcinaceae and Acetate-Oxidizing Pathways Dominate in High-Rate Thermophilic Anaerobic Digestion of Waste-Activated Sludge  

Science Journals Connector (OSTI)

...compounds (23). According to the literature, hydrogenotrophic methanogenesis...conversion of biomass to methane: a review. Rev. Environ. Sci. Biotechnol...carbon isotopic signatures: a review and a proposal. Org. Geochem...minimisation and biomaterials/bioenergy recovery technologies. John...

Dang P. Ho; Paul D. Jensen; Damien J. Batstone

2013-08-16T23:59:59.000Z

284

Methanosarcinaceae and Acetate-Oxidizing Pathways Dominate in High-Rate Thermophilic Anaerobic Digestion of Waste-Activated Sludge  

Science Journals Connector (OSTI)

...biomass to methane: a review. Rev. Environ. Sci...isotopic signatures: a review and a proposal. Org...marine and freshwater environments: CO2 reduction vs...microbes in methanogenic environments. Microbes Environ...minimisation and biomaterials/bioenergy recovery technologies...

Dang P. Ho; Paul D. Jensen; Damien J. Batstone

2013-08-16T23:59:59.000Z

285

Isolation and Characterization of Xylan-Degrading Strains of Butyrivibrio fibrisolvens from a Napier Grass-Fed Anaerobic Digester  

Science Journals Connector (OSTI)

...Isolation and Characterization of Xylan-Degrading Strains of Butyrivibrio...six isolates during growth on xylan (Tables 3 and 4). Both activities...activity was detected on the cell surface or in the broth. During growth on xylan as the carbon source, strains...

G. W. Sewell; H. C. Aldrich; D. Williams; B. Mannarelli; A. Wilkie; R. B. Hespell; P. H. Smith; L. O. Ingram

1988-05-01T23:59:59.000Z

286

Use of a Hierarchical Oligonucleotide Primer Extension Approach for Multiplexed Relative Abundance Analysis of Methanogens in Anaerobic Digestion Systems  

Science Journals Connector (OSTI)

...3-m height in the reactor but were undetectable...sampled at the top of the reactor (19 m). It is likely...configuration of the reactors, operational conditions...genes (Fig. 2). The reliability of the HOPE results...and cloning library analysis. Therefore, special...

Jer-Horng Wu; Hui-Ping Chuang; Mao-Hsuan Hsu; Wei-Yu Chen

2013-09-27T23:59:59.000Z

287

Digestibility and Production Coefficients of Hog Feeds.  

E-Print Network [OSTI]

LIDEARY, A t% !*I COLLEGE, CA%!PUS. TEXAS AGRICULTURAL EXPERIMENT STATiON A. B. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS 7 BULLETIN NO. 454 SEPTEMBER, 1932 Digestibility and Production Coefficients of Hog Feeds AGRICULTURAI... .................................................................. 16 Compositjon and feeding values of pig feeds 17 Standards for pig feeding ----__.-_._----------- 1 22 Summary ----__..-----_--_-.---.--------------------- 23 Ref erenczs --------------.---------- 24 BULLETIN NO. 454 SEPTEMBER, 1932...

Fraps, G. S. (George Stronach)

1932-01-01T23:59:59.000Z

288

Digestion Experiments with Texas Hays and Fodders.  

E-Print Network [OSTI]

. T. MILNER. .College Station I I STATION STAFF. I ............................................. B. YOUNGIILOOD, M S. .Director ......................................... M. FRANCIS, D. V. S.. Veterinarian.... B. Gottlieb, and T. L. Ogier. Special mention should be made of the services of J. B. Rather. TABLE +COMPOSITION OF FEEDING STUFFS AND RESIDUES FROM DIGESTION ZSPERTMENTS. Nitro- Pro- Ether Crude tein. 1 - 1 fiber. I frr$: TVater. 1 Labora...

Fraps, G. S. (George Stronach)

1912-01-01T23:59:59.000Z

289

E-Print Network 3.0 - anaerobic sulfide oxidation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

marsh microbial mat geochemistry Summary: 1, p. 114-160. KAMP A., STIEF P. & SCHULZ-VOGT H.N. (2006).- Anaerobic sulfide oxidation... to facultative anaerobic spirochetes may...

290

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":""}]}

291

E-Print Network 3.0 - anaerobic potency test Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

describing mineralization, nitrification... diffusive constraints due to aggregate size. With increasing anaerobic volume, the effective nitrification Source: Technion, Israel...

292

Preparation and Adsorption Performance of GrO@Cu-BTC for Separation of CO2/CH4  

Science Journals Connector (OSTI)

Biomethane production from municipal wastes through anaerobic digestion technology is growing worldwide. ... CO2 is the main undesirable compound present in landfill gas, so CO2/CH4 separation is critical for the production of biomethane from landfill gas. ...

Wenyu Huang; Xin Zhou; Qibin Xia; Junjie Peng; Haihui Wang; Zhong Li

2014-06-08T23:59:59.000Z

293

Engineered microorganisms capable of producing target compounds under anaerobic conditions  

SciTech Connect (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

294

ANAEROBIC BIOLOGICAL TREATMENT OF IN-SITU RETORT WATER  

E-Print Network [OSTI]

29,000 mg/1 nil a Source of sludge: City of Richmond WaterYen assessed the activated sludge process for the treatmentstudies using a digested sludge seed from a municipal

Ossio, Edmundo

2012-01-01T23:59:59.000Z

295

Biochemistry and Evolution of Anaerobic Energy Metabolism in Eukaryotes  

Science Journals Connector (OSTI)

...contribution to energy metabolism...unicellular green algae, the situation...a possible biofuel under certain...aerobically, the alga respires oxygen...of anaerobic energy metabolism...conserving energy, for example, via the alternative oxidase (AOX...eukaryotic algae appearing slightly...

Miklós Müller; Marek Mentel; Jaap J. van Hellemond; Katrin Henze; Christian Woehle; Sven B. Gould; Re-Young Yu; Mark van der Giezen; Aloysius G. M. Tielens; William F. Martin

2012-06-01T23:59:59.000Z

296

Anaerobic Ammonium-Oxidizing Bacteria: Unique Microorganisms with Exceptional Properties  

Science Journals Connector (OSTI)

...review-article Reviews Anaerobic Ammonium-Oxidizing...compartmentalized cell plan and archaeon-like...wall. Here we review our current knowledge...resembles the standard cytoplasmic compartment...compartmentalized cell plan and archaeon-like...wall. Here we review our current knowledge...resembles the standard cytoplasmic compartment...

Laura van Niftrik; Mike S. M. Jetten

2012-09-01T23:59:59.000Z

297

Anaerobic Catabolism of Aromatic Compounds: a Genetic and Genomic View  

Science Journals Connector (OSTI)

...for the biogeochemical cycles and for the sustainable...the Introduction, the general strategy of anaerobes...oxidation via the TCA cycle to PHB synthesis, which...and A2 (351). Some general stress-related proteins...role of BadM as a more general regulatory protein is...

Manuel Carmona; María Teresa Zamarro; Blas Blázquez; Gonzalo Durante-Rodríguez; Javier F. Juárez; J. Andrés Valderrama; María J. L. Barragán; José Luis García; Eduardo Díaz

2009-03-01T23:59:59.000Z

298

Sorption and Degradation of Fipronil in Flooded Anaerobic Rice Soils  

Science Journals Connector (OSTI)

Sorption and Degradation of Fipronil in Flooded Anaerobic Rice Soils ... The data predicted that fipronil was subject to rapid, reductive degradation or immediate sorption to the soil and any sorbed fipronil desorbed was reductively degraded. ... The reductive metabolite, fipronil sulfide, accumulated over the 184 day duration of the experiment and sorbed rapidly to the soil, where it accumulated and did not appear to degrade. ...

Gregory Doran; Philip Eberbach; Stuart Helliwell

2009-10-13T23:59:59.000Z

299

Anaerobic Methane Oxidation in a Landfill-Leachate Plume  

E-Print Network [OSTI]

Anaerobic Methane Oxidation in a Landfill-Leachate Plume E T H A N L . G R O S S M A N , * , L U I Landfill, OK, provides an excellent natural laboratory for the study of anaerobicprocessesimpactinglandfill enrichment indicated that 80-90% of the original landfill methane was oxidized over the 210-m transect. First

Grossman, Ethan L.

300

Crab digestive phospholipase: A new invertebrate member  

Science Journals Connector (OSTI)

Crab digestive phospholipase (CDPL) was purified from the hepatopancreas of Carcinus mediterraneus crabs. Homogeneous enzyme was obtained after two chromatography steps: anion exchange and size exclusion HPLC column. Homogeneous CDPL has a molecular mass of 14 kDa as determined by SDS/PAGE analysis. Unlike known digestive phospholipases like porcine PLA2 (PPPL), CDPL displayed its maximal activity at 50 °C and not at 37 °C. A specific activity of 40 U/mg for the purified CDPL was measured using PC as substrate under optimal conditions (pH 8 and 50 °C) in the presence of 8 mM sodium deoxycholate (NaDC) and 10 mM CaCl2. In contrast to PPPL, purified CDPL was completely inactivated at 60 °C. The N-terminal sequence was determined by automatic Edman degradation. No similarity between 12 N-terminal amino acid residues of CDPL was found with those of known digestive phospholipases. CDPL appears to be a new member of invertebrate phospholipases, and it is potentially useful for treat phospholipid-rich industrial effluents, or to synthesize useful chemical compounds which can be used in the food industry.

Slim Cherif; Abir Ben Bacha; Yassine Ben Ali; Habib Horchani; Wiem Rekik; Youssef Gargouri

2010-01-01T23:59:59.000Z

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

Method of digesting an explosive nitro compound  

DOE Patents [OSTI]

The present invention is a process wherein bleaching oxidants are used to digest explosive nitro compounds. The process has an excellent reaction rate for digesting explosives and operates under multivariate conditions. Reaction solutions may be aqueous, non-aqueous or a combination thereof, and can also be any pH, but preferably have a pH between 2 and 9. The temperature may be ambient as well as any temperature above which freezing of the solution would occur and below which any degradation of the bleaching oxidant would occur or below which any explosive reaction would be initiated. The pressure may be any pressure, but is preferably ambient or atmospheric, or a pressure above a vapor pressure of the aqueous solution to avoid boiling of the solution. Because the bleaching oxidant molecules are small, much smaller than an enzyme molecule for example, they can penetrate the microstructure of plastic explosives faster. The bleaching oxidants generate reactive hydroxyl radicals, which can destroy other organic contaminants, if necessary, along with digesting the explosive nitro compound.

Shah, Manish M. (Richland, WA)

2000-01-01T23:59:59.000Z

302

Landfill Gas Sequestration in Kansas  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Road Road P.O. Box 880 Morgantown, WV 26505-0880 304-285-4132 Heino.beckert@netl.doe.gov David newell Principal Investigator Kansas Geological Survey 1930 Constant Avenue Lawrence, KS 66045 785-864-2183 dnewall@kgs.uk.edu LandfiLL Gas sequestration in Kansas Background Municipal solid waste landfills are the largest source of anthropogenic methane emissions in the United States, accounting for about 34 percent of these emissions in 2004. Most methane (CH 4 ) generated in landfills and open dumps by anaerobic decomposition of the organic material in solid-waste-disposal landfills is either vented to the atmosphere or converted to carbon dioxide (CO 2 ) by flaring. The gas consists of about 50 percent methane (CH 4 ), the primary component of natural gas, about 50 percent carbon dioxide (CO

303

Complete genome sequence of Peptoniphilus sp. strain ING2-D1G isolated from a mesophilic lab-scale completely stirred tank reactor utilizing maize silage in co-digestion with pig and cattle manure for biomethanation  

Science Journals Connector (OSTI)

Abstract The bacterium Peptoniphilus sp. strain ING2-D1G (DSM 28672), a mesophilic and obligate anaerobic bacterium belonging to the order Clostridiales was isolated from a biogas-producing lab-scale completely stirred tank reactor (CSTR) optimized for anaerobic digestion of maize silage in co-fermentation with pig and cattle manure. In this study, the whole genome sequence of Peptoniphilus sp. strain ING2-D1G, a new isolate potentially involved in protein breakdown and acidogenesis during biomass degradation, is reported. The chromosome of this strain is 1.6 Mb in size and encodes genes predicted to be involved in the production of acetate, lactate and butyrate specifying the acidogenic metabolism of the isolate.

Geizecler Tomazetto; Sarah Hahnke; Irena Maus; Daniel Wibberg; Alfred Pühler; Andreas Schlüter; Michael Klocke

2014-01-01T23:59:59.000Z

304

EA-1624: Final Environmental Assessment | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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

305

Index to the Digest of Green Reports and Studies Complete "Green"  

E-Print Network [OSTI]

Index to the Digest of Green Reports and Studies Complete "Green" Publication Title Author and Organization Status of Digest Summary Web Address of Complete Publication Link to Green Digest Summary 1 of 25.labormarketinfo.edd.ca.gov/conte ntpub/GreenDigest/Bay-Region-Solar- Industry-Workforce-Study.pdf #12;Index to the Digest of Green

306

The mucosal/epithelial barrier disruption and transport of pancreatic digestive enzymes in early stages of intestinal ischemia  

E-Print Network [OSTI]

Allows Entry of Digestive Enzymes during Early Periods ofas Barrier to Digestive Enzymes in the Ischemic Rat SmallAllows Entry of Digestive Enzymes during Early Periods of

Chang, Marisol

2012-01-01T23:59:59.000Z

307

Enhanced Biomass Digestion with Wood Wasp Bacteria - Energy Innovation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Enhanced Biomass Digestion with Wood Wasp Bacteria Great Lakes Bioenergy Research Center Contact GLBRC About This Technology Technology Marketing Summary Plant biomass represents a...

308

Biomass Gasification and Methane Digester Property Tax Exemption  

Broader source: Energy.gov [DOE]

Michigan exempts certain energy production related farm facilities from real and personal property taxes. Among exempted property are certain methane digesters, biomass gasification equipment,...

309

Enhancing landfill gas recovery  

Science Journals Connector (OSTI)

The landfilling of municipal solid waste (MSW) may cause potential environmental impacts like global warming (GW), soil contaminations, and groundwater pollution. The degradation of MSW in anaerobic circumstances generates methane emissions, and can hence contribute the GW. As the GW is nowadays considered as one of the most serious environmental threats, the mitigation of methane emissions should obviously be aimed at on every landfill site where methane generation occurs. In this study, the treatment and utilization options for the generated LFG at case landfills which are located next to each other are examined. The yearly GHG emission balances are estimated for three different gas management scenarios. The first scenario is the combined heat and power (CHP) production with a gas engine. The second scenario is the combination of heat generation for the asphalt production process in the summer and district heat production by a water boiler in the winter. The third scenario is the LFG upgrading to biomethane. The estimation results illustrate that the LFG collection efficiency affects strongly on the magnitudes of GHG emissions. According to the results, the CHP production gives the highest GHG emission savings and is hence recommended as a gas utilization option for case landfills. Furthermore, aspects related to the case landfills' extraction are discussed.

Antti Niskanen; Hanna Värri; Jouni Havukainen; Ville Uusitalo; Mika Horttanainen

2013-01-01T23:59:59.000Z

310

Metagenome of an Anaerobic Microbial Community Decomposing Poplar Wood Chips  

SciTech Connect (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

311

Joint Polar Satellite System Science Seminar Annual Digest  

E-Print Network [OSTI]

iii Joint Polar Satellite System Science Seminar Annual Digest 2013 #12;#12;Joint Polar Satellite Polar Satellite System (JPSS) Program Science, it is my pleasure to present this digest, which services, such as forecasting of severe weather events and environmental monitoring of land, ocean

312

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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"}

313

E-Print Network 3.0 - anaerobic protein-degrading hyperthermophilic...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

protein-degrading hyperthermophilic Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic protein-degrading hyperthermophilic Page: << < 1 2 3...

314

E-Print Network 3.0 - anaerobic energy release Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

publication provides a general overview of anaero- Summary: Technology Biomethane (biogas) is an alternative and renewable energy source produced through the anaerobic... at...

315

E-Print Network 3.0 - anaerobic hydrogen producing Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a small percentage of hydrogen sulfide, water vapor, carbon... Technology Biomethane (biogas) is an alternative and renewable energy source produced through the anaerobic... are...

316

E-Print Network 3.0 - anaerobic thermophilic biogas Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

biogas Search Powered by Explorit Topic List Advanced Search Sample search results for: anaerobic thermophilic biogas Page: << < 1 2 3 4 5 > >> 1 Institute for Renewable Energy Ltd...

317

E-Print Network 3.0 - anaerobic aggregates determined Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Environment & Resources Online monitoring and control Summary: determines the biogas yield. Anaerobic substrate input is often measured in term of total chemical oxygen......

318

E-Print Network 3.0 - anaerobe ammoniakoxidation von Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Otto-Von-Guericke-UniVersitat Magdeburg, UniVersitatsplatz 2, D-39106 Magdeburg, Germany... acid (MA) under aerobic and anaerobic conditions was investigated. The Ce(IV)...

319

E-Print Network 3.0 - anaerobic thermophilic bacteria Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MICROBIOLOGY, Apr. 1994, p. 1241-1248 0099-22409404.00+0 Summary: . 1991. Acetate oxidation in a thermophilic anaerobic sewage-sludge digestor: the importance of non... -...

320

E-Print Network 3.0 - anaerobic feiii reduction Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

OCt. 1986, p. 751-757 0099-224086100751-0702.000 Summary: ) reduction in sediments incubated under anaerobic conditions and depth profiles of oxalate-extractable...

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

Analysis of Genes Involved in Anaerobic Growth in Porphyromonas Gingivalis and Shewanella Oneidensis MR-1.  

E-Print Network [OSTI]

?? Porphyromonas gingivalis is an oral Gram-negative anaerobic bacterium implicated in periodontal disease, a polymicrobial inflammatory disease that is correlated with cardiovascular disease, diabetes and… (more)

Kumarasinghe, Dilini Sanjeevi

2013-01-01T23:59:59.000Z

322

Anaerobic/aerobic conditions and biostimulation for enhanced chlorophenols degradation in biocathode microbial fuel cells  

Science Journals Connector (OSTI)

Anaerobic/aerobic conditions affected bacterial community composition and the subsequent chlorophenols (CPs) degradation in biocathode microbial fuel cells (MFCs). Bacterial communities acclimated with either ......

Liping Huang; Yinghong Shi; Ning Wang; Yuesheng Dong

2014-07-01T23:59:59.000Z

323

E-Print Network 3.0 - anaerobic arsenite oxidation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

incorporation into authigenic pyrite, Bengal Basin sediment, Bangladesh Summary: oxide (HFO) were prepared in an anaerobic chamber (3% H297%N2) using oxygen-free solutions....

324

E-Print Network 3.0 - anaerobic fungus piromyces Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

acetic... acid concentrations and (2) prolonged anaerobic continuous cultivation without pH control, in which Source: Wagner, Andreas - Department of Biochemistry, Universitt...

325

E-Print Network 3.0 - anaerobe acetobacterium dehalogenans Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Needs for Evaluating the Summary: , and compost) could retain previously-trapped pollutants even under anaerobic conditions. The results indicated... that permanent retention...

326

E-Print Network 3.0 - anaerobic benzoate degradation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Idaho Collection: Environmental Sciences and Ecology 9 Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material Summary: the...

327

E-Print Network 3.0 - anaerobic aquifer column Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Explorit Topic List Advanced Search Sample search results for: anaerobic aquifer column Page: << < 1 2 3 4 5 > >> 1 Biodegradation 11: 107116, 2000. 2001 Kluwer Academic...

328

E-Print Network 3.0 - anaerobic benzene degradation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Topic List Advanced Search Sample search results for: anaerobic benzene degradation Page: << < 1 2 3 4 5 > >> 1 Biodegradation 11: 107116, 2000. 2001 Kluwer Academic...

329

E-Print Network 3.0 - anaerobic microbial degradation Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Biodegradation 11: 107116, 2000. 2001 Kluwer Academic Publishers. Printed in the Netherlands. Summary: . 107 Anaerobic benzene degradation Derek R. Lovley Department of...

330

E-Print Network 3.0 - anaerobic enrichment culture Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

temperature under aerobic and nitrate-reducing conditions in enrichment cultures from northern soils. Appl... Controlled Release of Nitrate and Sulfate to Enhance Anaerobic ......

331

E-Print Network 3.0 - acid digestion procedure Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Environmental Sciences and Ecology 6 www.manuremanagement.cornell.edu Biogas Casebook Summary: digester. Methanogens Active in phase 3 of the digestion process...

332

E-Print Network 3.0 - acid digestibility coefficients Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Medicine ; Environmental Sciences and Ecology 18 5. oktober 2009 Precision control of biogas plants Summary: coupling of digesters and post digestion 2) Process inhibition 3)...

333

Anaerobic Migrating Blanket Reactor Treatment of Low-Strength Wastewater at  

E-Print Network [OSTI]

Anaerobic Migrating Blanket Reactor Treatment of Low-Strength Wastewater at Low Temperatures Largus anaerobic migrating blanket reactor (AMBR) was studied for the treatment of low- strength soluble wastewater milk substrate as a synthetic wastewater at low temperatures (15 and 20 °C). The concentration

Angenent, Lars T.

334

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

E-Print Network [OSTI]

A dynamic estimation scheme of specific growth rates of bacteria for an anaerobic wastewater anal- ysis and estimation schemes for specific growth rates for an anaerobic wastewater treatment the organic and inorganic materials) of municipal or industrial wastewater often needs to be highly reduced

Paris-Sud XI, Université de

335

Effect of Aerobic and Anaerobic Conditions on Chlorophenol Sorption in Wetland Soils  

E-Print Network [OSTI]

Effect of Aerobic and Anaerobic Conditions on Chlorophenol Sorption in Wetland Soils Elisa D by the physical and chemicalSorption of four chlorophenols (CPs) was studied in ten wetland properties- Much research on organic pollutant sorption has dem-bated under aerobic or anaerobic conditions

Florida, University of

336

Sequential anaerobic-aerobic degradation of indigenous PCBs in a contaminated soil matrix  

SciTech Connect (OSTI)

Many industrial locations, including the US Department of Energy`s, have identified needs for treatment of polychlorinated biphenyl (PCB) wastes and remediation of PCB-contaminated sites. Biodegradation of PCBs is a potentially effective technology for the treatment of PCB-contaminated soils and sludges; however, a practicable remediation technology has not yet been demonstrated. A biological treatment technology is likely to consist of an anaerobic fermentation step in which PCB dechlorination takes place producing PCBs with fewer chlorines. These products are then more susceptible to aerobic mineralization. In laboratory experiments, soil slurry bioreactors inoculated with microorganisms extracted from PCB-contaminated sediments from the Hudson River and Woods Pond have been used to obtain anaerobic dechlorination of PCBs in soil slurry reactors. The anaerobic dechlorination was followed by qualitative estimation of the effect of aerobic fermentation of the dechlorination products based on literature data. The sequential anaerobic-(simulated) aerobic treatment constituted an improvement compared anaerobic treatment alone.

Klasson, K.T.; Reeves, M.E.; Evans, B.S.; Dudley, C.A. [Oak Ridge National Lab., TN (United States). Chemical Technology Div.

1994-12-31T23:59:59.000Z

337

Natural Gas  

Science Journals Connector (OSTI)

30 May 1974 research-article Natural Gas C. P. Coppack This paper reviews the world's existing natural gas reserves and future expectations, together with natural gas consumption in 1972, by main geographic...

1974-01-01T23:59:59.000Z

338

Sonochemical Digestion of Soil and Sediment Samples  

SciTech Connect (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

339

Useful variation in in vitro digestibility within perennial ryegrass  

Science Journals Connector (OSTI)

In vitro dry matter digestibility (DMD) and dry matter yield (DMY) of herbage from plots sown with three selected perennial ryegrass varieties with similar heading dates (Ba11778, Talbot and Gator) under a range ...

P.W. Wilkins

1997-01-01T23:59:59.000Z

340

United States Nuclear Regulatory Commission staff practice and procedure digest  

SciTech Connect (OSTI)

This Revision 9 of the fifth edition of the NRC Staff Practice and Procedure Digest contains a digest of a number of Commission, Atomic Safety and Licensing Appeal Board, and Atomic Safety and Licensing Board decisions issued during the period from July 1, 1972 to September 30, 1990 interpreting the NRC's Rules of Practice in 10 CFR Part 2. This Revision 9 replaces in part earlier editions and revisions and includes appropriate changes reflecting the amendments to the Rules of Practice effective through September 30, 1990. This edition of the Digest was prepared by attorneys from Aspen Systems Corporation pursuant to Contract number 18-89-346. Persons using this Digest are placed on notice that it may not be used as an authoritative citation in support of any position before the Commission or any of its adjudicatory tribunals. Persons using this Digest are also placed on notice that it is intended for use only as an initial research tool, that it may, and likely does, contain errors, including errors in analysis and interpretation of decisions, and that the user should not rely on the Digest analyses and interpretations but must read, analyze and rely on the user's own analysis of the actual Commission, Appeal Board and Licensing Board decisions cited. Further, neither the United States, the Nuclear Regulatory Commission, Aspen Systems Corporation, nor any of their employees makes any expressed or implied warranty or assumes liability or responsibility for the accuracy, completeness or usefulness of any material presented in the Digest. The Digest is roughly structured in accordance with the chronological sequence of the nuclear facility licensing process as set forth in Appendix A to 10 CFR Part 2. Those decisions which did not fit into that structure are dealt with in a section on general matters. Where appropriate, particular decisions are indexed under more than one heading. (JF)

Not Available

1991-02-01T23:59:59.000Z

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

IEA-Renewable Energy Technologies, Bioenergy Agreement Task 37: Energy from Biogas and Landfill Gas  

E-Print Network [OSTI]

EFP-06 IEA- Renewable Energy Technologies, Bioenergy Agreement Task 37: Energy from Biogas-Bioenergy, Task 37- Energy from Biogas and Landfill Gas", via samarbejde, informationsudveksling, fælles analyser. biogas fra anaerob udrådning (AD) som en integreret gylle og affalds behandlings teknologi. Arbejdet

342

Simultaneous Nitrite-Dependent Anaerobic Methane and Ammonium Oxidation Processes  

Science Journals Connector (OSTI)

...of global greenhouse gas emissions from waste: conclusions and strategies from the Intergovernmental...Stenstrom 2005. Greenhouse gas production: a comparison...detection of all bacteria: development and evaluation of a...classification genetics growth & development metabolism Bioreactors...

Francisca A. Luesken; Jaime Sánchez; Theo A. van Alen; Janeth Sanabria; Huub J. M. Op den Camp; Mike S. M. Jetten; Boran Kartal

2011-08-12T23:59:59.000Z

343

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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,

344

Effect of different gas releasing methods on anaerobic fermentative hydrogen production in batch cultures  

Science Journals Connector (OSTI)

Decreasing hydrogen partial pressure can not only increase the activity of the hydrogen enzyme but also decrease the products inhibition, so it is an appropriate method to enhance the fermentative hydrogen production

Sheng Chang; Jianzheng Li; Feng Liu; Ze Yu

2012-12-01T23:59:59.000Z

345

Anaerobic and Aerobic Hydrogen Gas Formation by the Blue-Green Alga Anabaena cylindrica  

Science Journals Connector (OSTI)

...and in air, by the blue- green alga Anabaena cylindrica. The alga had not been previously adapted...consideration as a potential source of fuel, and hence there is considerable...known for many years that green algae such as Scenedesmus can evolve...

Arlene Daday; Rosalea A. Platz; Geoffrey D. Smith

1977-11-01T23:59:59.000Z

346

Can Delignification Decrease Cellulose Digestibility in Acid Pretreated Corn Stover?  

SciTech Connect (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

347

E-Print Network 3.0 - anaerobic sludge blanket Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Digester Supernatant ... Source: Gelt, Joe - Water Resources Research Center, College of Agriculture, The University of Arizona Collection: Renewable Energy 3 Occurrence and Fate...

348

Enrichment and hydrogen production by marine anaerobic hydrogen-producing microflora  

Science Journals Connector (OSTI)

Acid, alkali, heat-shock, KNO3 and control pretreatment methods applied to anaerobic sludge were evaluated for their ability to selectively enrich the marine hydrogen-producing mixed microflora. Seawater culture ...

JinLing Cai; GuangCe Wang; YanChuan Li; DaLing Zhu…

2009-08-01T23:59:59.000Z

349

E-Print Network 3.0 - anaerobic dark culture Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

about 93% of the RCs are in the Qa... -illumination under continuous light or by a flash series given to dark-adapted cells in anaerobic conditions, two... Fast oxidation of...

350

Start-up of a thermophilic upflow anaerobic sludge bed (UASB) reactor with mesophilic granular sludge  

Science Journals Connector (OSTI)

Fast start-up of thermophilic upflow anaerobic sludge bed (UASB) reactors was achieved at ... 55 and 64° C, using mesophilic granular sludge as inoculum and fatty acid mixtures as ... temperature optima for aceto...

Jules B. van Lier; Katja C. F. Grolle…

1992-04-01T23:59:59.000Z

351

E-Print Network 3.0 - anaerobic reductive precipitation Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4 Environmental Microbiology (2002) 4(9), 510-516 Multip,le influences of nitrate on uranium solubility Summary: that the addition of acetate, to stimulate anaerobic respiration,...

352

E-Print Network 3.0 - anaerobic 1-alkene metabolism Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

activity and tlie pattern of oxygen debt in the West African caecilian... ;BENNETT AND WAKE-METABOLISM IN A CAECILIAN 767 its energetic production is anaerobic, or 7.3 times as...

353

Gas Turbines  

Science Journals Connector (OSTI)

When the gas turbine generator was introduced to the power generation ... fossil-fueled power plant. Twenty years later, gas turbines were established as an important means of ... on utility systems. By the early...

Jeffrey M. Smith

1996-01-01T23:59:59.000Z

354

The incidence and significance of anaerobic bacteria in the equine uterus  

E-Print Network [OSTI]

that anaerobic bacteria may participate in inflammatory processes of the equine uterus (Kenney 1978a, Reynolds 1978, Ricketts 1981, Brook 1984). Elliott et al. (1971) conducted a study to obtain uterine cultures under anaerobic conditions but failed to obtain... not definitively been proven whether the normal equine uterine environment is sterile (Peterson et al. 1969, Hughes 1978) or if bacteria may normally be present in the non-inflamed uterus (Farrelly and Mullaney 1964, Kenney 1978a, Samuel et al. 1979). Knudsen...

Bolinger, Dean Roger

2012-06-07T23:59:59.000Z

355

Anaerobic Biotransformation and Mobility of Pu and of Pu-EDTA  

SciTech Connect (OSTI)

The enhanced mobility of radionuclides by co-disposed chelating agent, ethylenediaminetetraacetate (EDTA), is likely to occur only under anaerobic conditions. Our extensive effort to enrich and isolate anaerobic EDTA-degrading bacteria has failed. Others has tried and also failed. To explain the lack of anaerobic biodegradation of EDTA, we proposed that EDTA has to be transported into the cells for metabolism. A failure of uptake may contribute to the lack of EDTA degradation under anaerobic conditions. We demonstrated that an aerobic EDTA-degrading bacterium strain BNC1 uses an ABC-type transporter system to uptake EDTA. The system has a periplasmic binding protein that bind EDTA and then interacts with membrane proteins to transport EDTA into the cell at the expense of ATP. The bind protein EppA binds only free EDTA with a Kd of 25 nM. The low Kd value indicates high affinity. However, the Kd value of Ni-EDTA is 2.4 x 10^(-10) nM, indicating much stronger stability. Since Ni and other trace metals are essential for anaerobic respiration, we conclude that the added EDTA sequestrates all trace metals and making anaerobic respiration impossible. Thus, the data explain the lack of anaerobic enrichment cultures for EDTA degradation. Although we did not obtain an EDTA degrading culture under anaerobic conditions, our finding may promote the use of certain metals that forms more stable metal-EDTA complexes than Pu(III)-EDTA to prevent the enhanced mobility. Further, our data explain why EDTA is the most dominant organic pollutant in surface waters, due to the lack of degradation of certain metal-EDTA complexes.

Xun, Luying

2009-11-20T23:59:59.000Z

356

Gas Turbines  

Science Journals Connector (OSTI)

... the time to separate out the essentials and the irrelevancies in a text-book. The gas ...gasturbine ...

H. CONSTANT

1950-10-21T23:59:59.000Z

357

Treatment of wool scouring effluent using anaerobic biological and chemical flocculation  

Science Journals Connector (OSTI)

The most widely used treatment of wool scouring effluent (WSE) in Australia is lagooning (anaerobic and aerobic). As the pressure to devise a more environmentally acceptable treatment method increases there is a need to study alternative, efficient biological treatment systems for WSE. In this study, laboratory and pilot-scale anaerobic biological and chemical flocculation treatment processes were investigated for removing the pollutants (mainly wool grease) from WSE. Anaerobic biological treatment utilises the natural microbial flora to destabilise and bioflocculate the WSE resulting in the settling of wool grease from the bulk liquid. Batch trials showed a grease reduction by anaerobic bioflocculation of between 30% (pilot scale) and 50% (laboratory scale) over 8 days. However, the destabilisation of the wool grease emulsion after only 2–3 days resulted in a total grease reduction of >80% after addition of a polymeric flocculant. A laboratory anaerobic bioflocculation-chemical flocculation process gave promising results by removing >90% grease at hydraulic retention times of 1–2 days. In the pilot-scale the same process resulted in up to 80% grease removal efficiency. The results of this study indicate that anaerobic biological and chemical treatment of WSE is a promising alternative treatment system compared to other chemical or natural (lagooning) treatment systems. Our approach suggests adding a flocculant to aid the separation of biologically coagulated grease from the bulk liquid. A final low-level aerobic polishing step will be necessary to meet effluent disposal guidelines

T.I. Mercz; R. Cord-Ruwisch

1997-01-01T23:59:59.000Z

358

Anaerobic Ammonium-Oxidizing Bacteria: Unique Microorganisms with Exceptional Properties  

Science Journals Connector (OSTI)

...membrane to the outer membrane to drive a number of outer membrane receptors...nitrate reduction to dinitrogen gas via nitrite and ammonium. Environ...ammonium-oxidizing bacteria. ASM News 67 :456-463. 49. Kuypers...associated with global nitrogen gas production. Environ. Microbiol...

Laura van Niftrik; Mike S. M. Jetten

2012-09-01T23:59:59.000Z

359

Improving the Methane Production in the Co-Digestion of Microalgae and Cattle Manure  

E-Print Network [OSTI]

that biogas production increased when algae was added to the digester. The highest methane production in the control groups, containing only manure, digestion sludge, and newsprint was 48120 L, while the highest in the mixtures containing algae and pretreated...

Cantu, Matthew Scott

2014-04-28T23:59:59.000Z

360

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

E-Print Network [OSTI]

Investigation of EPS Characteristics and their Effects on Waste Activated Sludge Digestion Thomas on digestibility, especially in regards to the composition of extracellular polymeric substances (EPS). Samples possibilities. Characterizations made from extraction data showed curiously high EPS disruption in Amherst

Mountziaris, T. J.

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

Colorado Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Colorado Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

362

California Natural Gas Number of Gas and Gas Condensate Wells...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) California Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

363

Louisiana Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Louisiana Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

364

Michigan Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Michigan Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

365

Oklahoma Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) Oklahoma Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

366

Virginia Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Virginia Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

367

Tennessee Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Tennessee Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

368

Pennsylvania Natural Gas Number of Gas and Gas Condensate Wells...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Pennsylvania Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

369

Arkansas Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Arkansas Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

370

Maryland Natural Gas Number of Gas and Gas Condensate Wells ...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Maryland Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

371

Illinois Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) Illinois Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

372

Missouri Natural Gas Number of Gas and Gas Condensate Wells ...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Missouri Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

373

Mississippi Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Mississippi Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

374

Nebraska Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Gas and Gas Condensate Wells (Number of Elements) Nebraska Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

375

The adaptation of digestive enzymes to the diet : Its physiological significance  

E-Print Network [OSTI]

The adaptation of digestive enzymes to the diet : Its physiological significance T. CORRING Laboratoire de Physiologie de la Nutrition, LN.R.A. 78350 Jouy en Josas, France. Summary. Digestive enzymes that this process includes many enzymes. The intestinal step of digestion is the most important in the enzyme

Paris-Sud XI, Université de

376

DIGESTIVE ENZYMES IN POIKILOTHERMAL VERTEBRATES. AN INVESTIGATION OF ENZYMES IN FISHES, WITH COM-  

E-Print Network [OSTI]

DIGESTIVE ENZYMES IN POIKILOTHERMAL VERTEBRATES. AN INVESTIGATION OF ENZYMES IN FISHES, WITH COM Tryptic digestion uu u_ 182 Ereptic digestion u n _ 186 Carbohydrate-splitting enzymes _ 184 Amylase _ 184 enzymes in representatives throughout the vertebrate series. It would be of value to know if differences

377

Composition and Digestibility of the Ether Extract of Hays and Fodders.  

E-Print Network [OSTI]

556-712-5m TEXAS AGRICULTURAL EXPERIMENT STATIONS. BULLETIN NO . 150 AUGUST , 1912. Division o f Chemistry TECHNICAL BULLETIN Composition and Digestibility of the Ether Extract of Hays and Fodders By G S. FRAPS and J. B. RATHER POSTOFFICE... Digestibility of the Constituents............................................................. 23 Summary and Conclusions.......................................................................29 BLANK PAGE IN ORIGINAL Composition and Digestibility of the Ether...

Fraps, G. S.; Rather, J. B.

1912-01-01T23:59:59.000Z

378

How Markets Slowly Digest Changes in Supply and Demand  

E-Print Network [OSTI]

Transactions 86 2.5.2. Impact of Aggregate Transactions 86 2.5.3. Hidden Order Impact 88 2.5.4. Upstairs Market Impact 90 2.6. Theory of Market Impact 90 2.6.1. Why Is Individual Transaction Impact Concave? 91 2CHAPTER 2 How Markets Slowly Digest Changes in Supply and Demand Jean-Philippe Bouchaud Science

379

Original article Digestion of wheat gluten and potato protein  

E-Print Network [OSTI]

Original article Digestion of wheat gluten and potato protein by the preruminant calf%) substituted by a native wheat gluten or a potato protein concentrate, were given to intact or ileo.05) with the potato than with the gluten and control diets (0.90, 0.93 and 0.95, respec- tively). The same trend

Paris-Sud XI, Université de

380

Original article Digestion and fermentation of proteins in rats fed  

E-Print Network [OSTI]

Original article Digestion and fermentation of proteins in rats fed keratin, albumin, cooked casein) Summary ― Dietary cooked casein promotes colon cancer in rats. We speculated and tested (hydrolysed or not) and bovine serum albumin (oxidized or not) was measured in rats. Protein fermentation

Boyer, Edmond

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

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]

, and their entrained lipids, can offer several different types of biofuel and bioenergy production options including as well as suitably large and viable markets (Chakraborty et al., 2012; Miao et al., 2012). Both

Collins, Gary S.

382

Growth condition and bacterial community for maximum hydrolysis of suspended organic materials in anaerobic digestion of food waste-recycling wastewater  

Science Journals Connector (OSTI)

This paper reports the effects of changing pH (5–7) and temperature (T..., 40–60 °C) on the efficiencies of bacterial hydrolysis of suspended organic matter (SOM) in wastewater from food waste recycling (FWR) and...

Man Deok Kim; Minkyung Song; Minho Jo…

2010-02-01T23:59:59.000Z

383

DNA digestion protocol & hints Overview: Although it is pretty standard to digest DNA with restriction enzymes, here  

E-Print Network [OSTI]

with restriction enzymes, here are a standardized protocol and some hints... References: *Current protocols · restriction enzyme · DNA loading buffer · Agarose gel 0.8% (or different depending on expected band sizes.1 to 4 µg 10x Digestion buffer 2 µl 5 µl Enzyme ? ? Water Rest of volume Rest of volume 2. Add the enzyme

Doering, Tamara

384

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

,366 ,366 95,493 1.08 0 0.00 1 0.03 29,406 0.56 1,206 0.04 20,328 0.64 146,434 0.73 - Natural Gas 1996 Million Percent of Million Percent of Cu. Feet National Total Cu. Feet National Total Net Interstate Movements: Industrial: Marketed Production: Vehicle Fuel: Deliveries to Consumers: Electric Residential: Utilities: Commercial: Total: South Carolina South Carolina 88. Summary Statistics for Natural Gas South Carolina, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ...........................................

385

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

0,216 0,216 50,022 0.56 135 0.00 49 1.67 85,533 1.63 8,455 0.31 45,842 1.45 189,901 0.95 - Natural Gas 1996 Million Percent of Million Percent of Cu. Feet National Total Cu. Feet National Total Net Interstate Movements: Industrial: Marketed Production: Vehicle Fuel: Deliveries to Consumers: Electric Residential: Utilities: Commercial: Total: M a r y l a n d Maryland 68. Summary Statistics for Natural Gas Maryland, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 9 7 7 7 8 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 33 28 26 22 135 From Oil Wells ...........................................

386

Anaerobic bioflocculation of wool scouring effluent: the influence of non-ionic surfactant on efficiency  

Science Journals Connector (OSTI)

Wool scouring effluent (WSE) contains high concentrations of wool grease emulsified by non-ionic surfactants (nonylphenol polyethoxylates — NPEO). The short-term treatment (1–7 days) of this effluent with anaerobic bacteria resulted in partial grease flocculation. However the efficiency of this process varied largely (30% to 80%) with the source of wool scouring effluent used. The concentration of free surfactant, rather than total surfactant, was found to be the likely reason for the variation in efficiency. In order to elucidate the mechanisms of anaerobic biological flocculation a detailed surfactant analysis was performed. This revealed that anaerobic microbes (taken from sludge of a municipal wastewater treatment plant) had an ability to partially degrade NPEO by shortening the hydrophilic ethoxylate chain causing coagulation and subsequent flocculation of wool grease from the liquor.

Wipa Charles; Goen Ho; Ralf Cord-Ruwisch

1996-01-01T23:59:59.000Z

387

Substrate-Level Phosphorylation Is the Primary Source of Energy Conservation during Anaerobic Respiration of Shewanella oneidensis Strain MR-1  

Science Journals Connector (OSTI)

...Source of Energy Conservation during Anaerobic...anaerobic energy conservation strategy. Phenotypic...amount of the ATP pool is used to generate...acid per liter in water and was neutralized...means of energy conservation used by MR-1 during...balance internal redox pools but also to prevent...

Kristopher A. Hunt; Jeffrey M. Flynn; Belén Naranjo; Indraneel D. Shikhare; Jeffrey A. Gralnick

2010-04-16T23:59:59.000Z

388

Identification and Isolation of Anaerobic, Syntrophic Phthalate Isomer-Degrading Microbes from Methanogenic Sludges Treating Wastewater from Terephthalate Manufacturing  

Science Journals Connector (OSTI)

...Electron balance was calculated...Anaerobic pre-treatment of petrochemical...terephthalic acid wastewater. Water Sci...treatment of wastewater at low temperatures...Anaerobic treatment of a petrochemical wastewater from a terephthalic acid plant. Water Sci...Sunderland, Mass. 34 Tasaki...

Yan-Ling Qiu; Yuji Sekiguchi; Hiroyuki Imachi; Yoichi Kamagata; I-Cheng Tseng; Sheng-Shung Cheng; Akiyoshi Ohashi; Hideki Harada

2004-03-01T23:59:59.000Z

389

Composition, Digestibility and Energy Values of Some Human Foods.  

E-Print Network [OSTI]

Almond 13 Pumpkin Brnzil nuts 19 Turnip roots Chestnut Coconut 2 1 Fruits Peanut 11 Apples Pecans 17 Prunes Walnut, English 13 Dates Vegetables 1"gs Grapes Potato, white Potato, sweet Mustard nreens Spinach Chard leaves & e Turnip greens...-free extract in some foods (21). COMPOSITION. DIGESTIBILITY AND ENERGY OF SOME HUMAN FOODS 7 The protein in many human foods consists almost entirely of proteids but green vegetables and fruits contain appreciable percentages of non- proteids...

Fraps, G. S. (George Stronach)

1946-01-01T23:59:59.000Z

390

Anaerobic methanotrophy and the rise of atmospheric oxygen  

Science Journals Connector (OSTI)

...around 29mM of sulphate, which is often well mixed by fauna into a bioturbation zone...hydrothermal (F V) plus metamorphism/geothermal reductants (F M), following an argument...oil and gas seeps in deepwater Gulf of Mexico. Geochim. Cosmochim. Acta. 64, 233-246...

2007-01-01T23:59:59.000Z

391

Evaluation of a sequential aerobicâ??anaerobic treatment of municipal solid waste in a bioreactor landfill  

Science Journals Connector (OSTI)

A sequential aerobic-anaerobic bioreactor landfill was operated and monitored over a period of 184 days. The bioreactor was filled with 120 kg of organic fraction of Municipal Solid Waste. Leachate recirculation was applied. The results showed rapid degradation of organic matter with rapid settlement during the aerobic period. The initial COD and BOD5 were reduced from 46,500 and 41,500 mg/L to 9000 and 6000 mg/L, respectively, within one month. The SO42? concentration, during the anaerobic period, was decreased from 1500 mg/L to 250 mg/L. The sequential treatment had positive effects on nitrification and denitrification efficiencies.

Aris Nikolaou; Apostolos Giannis; Evangelos Gidarakos

2011-01-01T23:59:59.000Z

392

Method and apparatus for controlling gas evolution from chemical reactions  

DOE Patents [OSTI]

The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846.

Skorpik, James R. (Kennewick, WA); Dodson, Michael G. (Richland, WA)

1999-01-01T23:59:59.000Z

393

Method and apparatus for controlling gas evolution from chemical reactions  

DOE Patents [OSTI]

The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846. 8 figs.

Skorpik, J.R.; Dodson, M.G.

1999-05-25T23:59:59.000Z

394

,"Missouri Natural Gas Summary"  

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

Gas Wells (MMcf)","Missouri Natural Gas Gross Withdrawals from Oil Wells (MMcf)","Missouri Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)","Missouri Natural...

395

Microbial Communities Involved in Anaerobic Degradation of Unsaturated or Saturated Long-Chain Fatty Acids  

Science Journals Connector (OSTI)

...dairy industry, food processing industry, slaughterhouses, wool scouring industry, and vegetable oil/fat refineries. LCFA...suspended solids liter1), obtained from a local municipal sludge digester (Freixo ETAR, Porto, Portugal). During the first 64 days...

Diana Z. Sousa; M. Alcina Pereira; Alfons J. M. Stams; M. Madalena Alves; Hauke Smidt

2006-12-08T23:59:59.000Z

396

Tri-Generation Success World's First Tri-Gen  

E-Print Network [OSTI]

station uses anaerobically digested biogas from the municipal wastewater treatment plant as the fuel SAE protocols for rapid 3-minute complete tank refueling. Gas or Biogas H2 is produced at anode Gas the versatility of fuel cells to utilize multiple feedstocks, such as biogas and natural gas, to produce power

397

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

68,747 68,747 34,577 0.39 0 0.00 34 1.16 14,941 0.29 0 0.00 11,506 0.36 61,058 0.31 I d a h o Idaho 60. Summary Statistics for Natural Gas Idaho, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation.......................... 0 0 0 0 0 Vented

398

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0.00 0 0.00 0 0.00 540 0.01 0 0.00 2,132 0.07 2,672 0.01 H a w a i i Hawaii 59. Summary Statistics for Natural Gas Hawaii, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation.......................... 0 0 0 0 0 Vented and Flared

399

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

483,052 483,052 136,722 1.54 6,006 0.03 88 3.00 16,293 0.31 283,557 10.38 41,810 1.32 478,471 2.39 F l o r i d a Florida 57. Summary Statistics for Natural Gas Florida, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 47 50 98 92 96 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 7,584 8,011 8,468 7,133 6,706 Total.............................................................. 7,584 8,011 8,468 7,133 6,706 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ...............

400

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

291,898 291,898 113,995 1.29 0 0.00 4 0.14 88,078 1.68 3,491 0.13 54,571 1.73 260,140 1.30 I o w a Iowa 63. Summary Statistics for Natural Gas Iowa, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation.......................... 0 0 0

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

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Vehicle Fuel: Vehicle Fuel: Deliveries to Consumers: Electric Residential: Utilities: Commercial: Total: New England New England 36. Summary Statistics for Natural Gas New England, 1992-1996 Table 691,089 167,354 1.89 0 0.00 40 1.36 187,469 3.58 80,592 2.95 160,761 5.09 596,215 2.98 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................

402

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

29,693 29,693 0 0.00 0 0.00 6 0.20 17,290 0.33 0 0.00 16,347 0.52 33,644 0.17 District of Columbia District of Columbia 56. Summary Statistics for Natural Gas District of Columbia, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

403

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

42,980 42,980 14,164 0.16 0 0.00 1 0.03 9,791 0.19 23,370 0.86 6,694 0.21 54,020 0.27 D e l a w a r e Delaware 55. Summary Statistics for Natural Gas Delaware, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

404

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-49,536 -49,536 7,911 0.09 49,674 0.25 15 0.51 12,591 0.24 3 0.00 12,150 0.38 32,670 0.16 North Dakota North Dakota 82. Summary Statistics for Natural Gas North Dakota, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 496 525 507 463 462 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 104 101 104 99 108 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 12,461 18,892 19,592 16,914 16,810 From Oil Wells ........................................... 47,518 46,059 43,640 39,760 38,906 Total.............................................................. 59,979 64,951 63,232 56,674 55,716 Repressuring ................................................

405

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

21,547 21,547 4,916 0.06 0 0.00 0 0.00 7,012 0.13 3 0.00 7,099 0.22 19,031 0.10 N e w H a m p s h i r e New Hampshire 77. Summary Statistics for Natural Gas New Hampshire, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

406

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

139,881 139,881 26,979 0.30 463 0.00 115 3.92 27,709 0.53 19,248 0.70 28,987 0.92 103,037 0.52 A r i z o n a Arizona 50. Summary Statistics for Natural Gas Arizona, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 6 6 6 7 7 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 721 508 711 470 417 From Oil Wells ........................................... 72 110 48 88 47 Total.............................................................. 794 618 759 558 464 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease

407

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Middle Middle Atlantic Middle Atlantic 37. Summary Statistics for Natural Gas Middle Atlantic, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,857 1,981 2,042 1,679 1,928 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 36,906 36,857 26,180 37,159 38,000 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 161,372 152,717 140,444 128,677 152,494 From Oil Wells ........................................... 824 610 539 723 641 Total.............................................................. 162,196 153,327 140,982 129,400 153,134 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed

408

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

386,690 386,690 102,471 1.16 0 0.00 43 1.47 142,319 2.72 5,301 0.19 98,537 3.12 348,671 1.74 M i n n e s o t a Minnesota 71. Summary Statistics for Natural Gas Minnesota, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

409

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,108,583 1,108,583 322,275 3.63 298 0.00 32 1.09 538,749 10.28 25,863 0.95 218,054 6.90 1,104,972 5.52 I l l i n o i s Illinois 61. Summary Statistics for Natural Gas Illinois, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 382 385 390 372 370 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 337 330 323 325 289 From Oil Wells ........................................... 10 10 10 10 9 Total.............................................................. 347 340 333 335 298 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ...............

410

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

286,485 286,485 71,533 0.81 25 0.00 31 1.06 137,225 2.62 5,223 0.19 72,802 2.31 286,814 1.43 M i s s o u r i Missouri 73. Summary Statistics for Natural Gas Missouri, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 5 8 12 15 24 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 27 14 8 16 25 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 27 14 8 16 25 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

411

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

411,951 411,951 100,015 1.13 0 0.00 5 0.17 114,365 2.18 45,037 1.65 96,187 3.05 355,609 1.78 Massachusetts Massachusetts 69. Summary Statistics for Natural Gas Massachusetts, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

412

Gas vesicles.  

Science Journals Connector (OSTI)

...in the suspending water, of concentration...MPa and balances the atmospheric pressure. Note that...versely, liquid water could not form by condensation inside the gas vesicle...presumably surrounded by water on all sides. At...

A E Walsby

1994-03-01T23:59:59.000Z

413

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

226,798 226,798 104,124 1.17 0 0.00 0 0.00 58,812 1.12 2,381 0.09 40,467 1.28 205,783 1.03 North Carolina North Carolina 81. Summary Statistics for Natural Gas North Carolina, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

414

Separate collection of household food waste for anaerobic degradation - Comparison of different techniques from a systems perspective  

SciTech Connect (OSTI)

Highlight: Black-Right-Pointing-Pointer Four modern and innovative systems for household food waste collection are compared. Black-Right-Pointing-Pointer Direct emissions and resource use were based on full-scale data. Black-Right-Pointing-Pointer Conservation of nutrients/energy content over the system was considered. Black-Right-Pointing-Pointer Systems with high energy/nutrient recovery are most environmentally beneficial. - Abstract: Four systems for household food waste collection are compared in relation the environmental impact categories eutrophication potential, acidification potential, global warming potential as well as energy use. Also, a hotspot analysis is performed in order to suggest improvements in each of the compared collection systems. Separate collection of household food waste in paper bags (with and without drying prior to collection) with use of kitchen grinders and with use of vacuum system in kitchen sinks were compared. In all cases, food waste was used for anaerobic digestion with energy and nutrient recovery in all cases. Compared systems all resulted in net avoidance of assessed environmental impact categories; eutrophication potential (-0.1 to -2.4 kg NO{sub 3}{sup -}eq/ton food waste), acidification potential (-0.4 to -1.0 kg SO{sub 2}{sup -}eq/ton food waste), global warming potential (-790 to -960 kg CO{sub 2}{sup -}eq/ton food waste) and primary energy use (-1.7 to -3.6 GJ/ton food waste). Collection with vacuum system results in the largest net avoidance of primary energy use, while disposal of food waste in paper bags for decentralized drying before collection result in a larger net avoidance of global warming, eutrophication and acidification. However, both these systems not have been taken into use in large scale systems yet and further investigations are needed in order to confirm the outcomes from the comparison. Ranking of scenarios differ largely if considering only emissions in the foreground system, indicating the importance of taking also downstream emissions into consideration when comparing different collection systems. The hot spot identification shows that losses of organic matter in mechanical pretreatment as well as tank connected food waste disposal systems and energy in drying and vacuum systems reply to the largest impact on the results in each system respectively.

Bernstad, A., E-mail: Anna.bernstad@chemeng.lth.se [Water and Environmental Engineering, Department of Chemical Engineering, Lund University (Sweden); Cour Jansen, J. la [Water and Environmental Engineering, Department of Chemical Engineering, Lund University (Sweden)

2012-05-15T23:59:59.000Z

415

Fuel Gas Production from Organic Wastes by Low Capital Cost Batch Digestion  

Science Journals Connector (OSTI)

The technical background is reviewed on energy recovery from biomass--i.e., all organic wastes, especially municipal solid wastes, but also including agricultural residues and crops grown specifically for ener...

Donald L. Wise; Alfred P. Leuschner…

1986-01-01T23:59:59.000Z

416

Effect of a liquid multi-vitamin-mineral supplement on anaerobic exercise performance  

E-Print Network [OSTI]

The purpose of this study was to determine if supplementation with a liquid multi-vitamin/mineral would improve anaerobic exercise performance. Fourteen resistance-trained men performed a 30-second cycle sprint and one set of squat exercise on 2...

Fry, Andrew C.; Bloomer, Richard J.; Falvo, Michael J.; Moore, Chris A.; Schilling, Brian K.; Weiss, Lawrence W.

2006-01-01T23:59:59.000Z

417

Complete Genome Sequence of the Anaerobic Halophilic Alkalithermophile Natranaerobius thermophilus JW/NM-WN-LFT  

SciTech Connect (OSTI)

The genome of the anaerobic halophilic alkalithermophile Natranaerobius thermophiles consists of one chromosome and two plasmids.The present study is the first to report the completely sequenced genome of polyextremophile and the harboring genes harboring genes associated with roles in regulation of intracellular osmotic pressure, pH homeostasis, and thermophilic stability.

Mesbah, Noha [University of Georgia, Athens, GA; Dalin, Eileen [U.S. Department of Energy, Joint Genome Institute; Goodwin, Lynne A. [Los Alamos National Laboratory (LANL); Nolan, Matt [U.S. Department of Energy, Joint Genome Institute; Pitluck, Sam [U.S. Department of Energy, Joint Genome Institute; Chertkov, Olga [Los Alamos National Laboratory (LANL); Han, James [U.S. Department of Energy, Joint Genome Institute; Larimer, Frank W [ORNL; Land, Miriam L [ORNL; Hauser, Loren John [ORNL; Kyrpides, Nikos C [U.S. Department of Energy, Joint Genome Institute; Wiegel, Juergen [University of Georgia, Athens, GA

2011-01-01T23:59:59.000Z

418

Anaerobic methane oxidation in metalliferous hydrothermal sediments: influence on carbon flux and  

E-Print Network [OSTI]

Anaerobic methane oxidation in metalliferous hydrothermal sediments: influence on carbon flux significant sink that regulates methane flux from sediments into the oceans and atmosphere. Here we examine mesophilic to thermophilic AOM in hydro- thermal sediments recovered from the Middle Valley vent field

Girguis, Peter R.

419

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

E-Print Network [OSTI]

for treatment in EU, followed by spreading on land, which accounted for 37% of the sewage sludge produced allow recycling of nutrients. Hence, bioprocessed sewage sludge application on agricultural soilRemoval of polycyclic aromatic hydrocarbons (PAHs) from sewage sludge by anaerobic degradation N

420

Wastewater Effluent Polishing Systems of Anaerobic Baffled Reactor Treating Black-water from Households  

E-Print Network [OSTI]

Wastewater Effluent Polishing Systems of Anaerobic Baffled Reactor Treating Black-water from of different integrated low-cost wastewater treatment systems, comprising one ABR as first treatment step filter and a vertical flow constructed wetland. A mixture of septage and domestic wastewater was used

Richner, Heinz

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

ivestock and poultry operations frequently use anaerobic lagoons as liquid waste storage and  

E-Print Network [OSTI]

, The Texas A&M University System. #12;Pumping Pumping from the lagoon should be conducted annually, at least the designed life of sludge storage, frequent agitation and pumping may be necessary. In addition, solidsL ivestock and poultry operations frequently use anaerobic lagoons as liquid waste storage

Mukhtar, Saqib

422

Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material  

E-Print Network [OSTI]

Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material bioremediation of carbon tetrachloride (CT) at the Hanford site in south- central Washington state. Benzoate in south- central Washington state has been a defense materials pro- duction complex since 1943. Carbon

Semprini, Lewis

423

Starvation Response of Saccharomyces cerevisiae Grown in Anaerobic Nitrogen- or Carbon-Limited Chemostat Cultures  

Science Journals Connector (OSTI)

...Pringle. 1980. Reserve carbohydrate metabolism...Ethanol around the world: rapid growth in...starvation can induce energy deprivation and loss...protectant rather than reserve carbohydrate. Antonie...ATP content, and reserve carbohydrates and...starvation requires energy and, under anaerobic...

Elisabeth Thomsson; Lena Gustafsson; Christer Larsson

2005-06-01T23:59:59.000Z

424

Utilisation digestive de rations riches en lignines chez le lapin en croissance  

E-Print Network [OSTI]

Utilisation digestive de rations riches en lignines chez le lapin en croissance: mesures de flux et digestion de la ration sont mal connus chez le lapin. L'effet de hautes teneurs en lignines sur la digestion), caractérisé essentiellement par sa teneur variable en lignines VAN SOEST: 7,4 (lot B) ; 12,8 (lot M) et 16,0 p

Boyer, Edmond

425

Growth performance, voluntary intake and nutrient digestibility in horses grazing Bermudagrass pastures and fed Bermudagrass hay  

E-Print Network [OSTI]

Intake of Forages Digestibility of Cell-Wall Constituents Digestibility of Crude Protein in Forages Digestibility of Gross Energy in Forages Relationships Between Availability of Forage and Animal Production Relationships Between Forage IIuality... of growth to reach mature size, which places an importance on maximum production per animal. Research conducted with ruminants has utilized regression analyses to describe the relationship between average daily gain and stocking rate. Peterson et al...

Aiken, Glen Eris

2012-06-07T23:59:59.000Z

426

Ground Gas Handbook  

Science Journals Connector (OSTI)

...pathways of least resistance to gas transport, and applications are discussed, such as migrating landfill gas emissions, also from leaking landfill gas collection systems, as well as natural gas and oil-field gas leakage from abandoned production...

Allen W Hatheway

427

E-Print Network 3.0 - aerobic digestion Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Council (WTERT) Collection: Renewable Energy 8 www.manuremanagement.cornell.edu Biogas Casebook Summary: Riverhead, NY 11901 Corwin Duck FarmCorwin Duck Farm Digester type...

428

E-Print Network 3.0 - autothermal aerobic digestion Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Council (WTERT) Collection: Renewable Energy 12 www.manuremanagement.cornell.edu Biogas Casebook Summary: Riverhead, NY 11901 Corwin Duck FarmCorwin Duck Farm Digester type...

429

E-Print Network 3.0 - aerobic digestion atad Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Council (WTERT) Collection: Renewable Energy 11 www.manuremanagement.cornell.edu Biogas Casebook Summary: Riverhead, NY 11901 Corwin Duck FarmCorwin Duck Farm Digester type...

430

Gas Delivered  

Gasoline and Diesel Fuel Update (EIA)

. Average . Average Price of Natural Gas Delivered to Residential Consumers, 1980-1996 Figure 1980 1982 1984 1986 1988 1990 1992 1994 1996 0 2 4 6 8 10 0 40 80 120 160 200 240 280 320 Dollars per Thousand Cubic Feet Dollars per Thousand Cubic Meters Nominal Dollars Constant Dollars Sources: Nominal dollars: Energy Information Administration (EIA), Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition." Constant dollars: Prices were converted to 1995 dollars using the chain-type price indexes for Gross Domestic Product (1992 = 1.0) as published by the U. S. Department of Commerce, Bureau of Economic Analysis. Residential: Prices in this publication for the residential sector cover nearly all of the volumes of gas delivered. Commercial and Industrial: Prices for the commercial and industrial sectors are often associated with

431

Method for measuring dissolved hydrogen in anaerobic ecosystems: application to the rumen.  

Science Journals Connector (OSTI)

...of gas in the gas bubble, as determined by gas chromatography, by the volume of the gas bubble. To assess the accuracy...However, at this ionic strength (0.22 mol-liter-1...sediments, thick sewage sludge). Byrearrangement...

J A Robinson; R F Strayer; J M Tiedje

1981-02-01T23:59:59.000Z

432

Method for digesting a nitro-bearing explosive compound  

DOE Patents [OSTI]

The present invention is a process wherein superoxide radicals from superoxide salt are used to break down the explosive compounds. The process has an excellent reaction rate for degrading explosives, and operates at ambient temperature and atmospheric pressure in aqueous or non-aqueous conditions. Because the superoxide molecules are small, much smaller than an enzyme molecule for example, they can penetrate the microstructure of plastic explosives faster. The superoxide salt generates reactive hydroxyl radicals, which can destroy other organic contaminants, if necessary, along with digesting the explosive nitro-bearing compound.

Shah, Manish M. (Richland, WA)

2000-01-01T23:59:59.000Z

433

E-Print Network 3.0 - aerogic mechanical-biological waste Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pyrolysis Hydrolysis Composting Mechanical Biological Treatment Biogas > Incineration... , Gasification, Hydrolysis, Anaerobic Digestion, ... Source:...

434

ENERGY RECOVERY COUNCIL WEEKLY UPDATE  

E-Print Network [OSTI]

such as (but not limited to) pyrolysis, biomass gasification, and anaerobic digestion. Responses to the RFI

435

College of Engineering Summer Research Experience for Undergraduates Program  

E-Print Network [OSTI]

biomethane and study its subsequent effect on anaerobic digestion products. Brief description of what

Mountziaris, T. J.

436

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

73,669 73,669 141,300 1.59 221,822 1.12 3 0.10 46,289 0.88 33,988 1.24 31,006 0.98 252,585 1.26 A r k a n s a s Arkansas 51. Summary Statistics for Natural Gas Arkansas, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,750 1,552 1,607 1,563 1,470 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 3,500 3,500 3,500 3,988 4,020 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 171,543 166,273 161,967 161,390 182,895 From Oil Wells ........................................... 39,364 38,279 33,446 33,979 41,551 Total.............................................................. 210,906 204,552 195,413 195,369 224,446 Repressuring ................................................

437

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-1,080,240 -1,080,240 201,024 2.27 1,734,887 8.78 133 4.54 76,629 1.46 136,436 4.99 46,152 1.46 460,373 2.30 O k l a h o m a Oklahoma 84. Summary Statistics for Natural Gas Oklahoma, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 13,926 13,289 13,487 13,438 13,074 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 28,902 29,118 29,121 29,733 29,733 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 1,674,405 1,732,997 1,626,858 1,521,857 1,467,695 From Oil Wells ........................................... 342,950 316,945 308,006 289,877 267,192 Total.............................................................. 2,017,356 2,049,942 1,934,864

438

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

7,038,115 7,038,115 3,528,911 39.78 13,646,477 69.09 183 6.24 408,861 7.80 1,461,718 53.49 281,452 8.91 5,681,125 28.40 West South Central West South Central 42. Summary Statistics for Natural Gas West South Central, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 87,198 84,777 88,034 88,734 62,357 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 92,212 95,288 94,233 102,525 102,864 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 11,599,913 11,749,649 11,959,444 11,824,788 12,116,665 From Oil Wells ........................................... 2,313,831 2,368,395 2,308,634 2,217,752 2,151,247 Total..............................................................

439

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

77,379 77,379 94,481 1.07 81,435 0.41 8 0.27 70,232 1.34 1,836 0.07 40,972 1.30 207,529 1.04 K e n t u c k y Kentucky 65. Summary Statistics for Natural Gas Kentucky, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,084 1,003 969 1,044 983 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 12,483 12,836 13,036 13,311 13,501 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 79,690 86,966 73,081 74,754 81,435 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 79,690 86,966 73,081 74,754 81,435 Repressuring ................................................

440

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-67,648 -67,648 75,616 0.85 480,828 2.43 0 0.00 16,720 0.32 31,767 1.16 29,447 0.93 153,549 0.77 Pacific Noncontiguous Pacific Noncontiguous 45. Summary Statistics for Natural Gas Pacific Noncontiguous, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 9,638 9,907 9,733 9,497 9,294 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 112 113 104 100 102 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 198,603 190,139 180,639 179,470 183,747 From Oil Wells ........................................... 2,427,110 2,588,202 2,905,261 3,190,433 3,189,837 Total.............................................................. 2,625,713 2,778,341

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

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-310,913 -310,913 110,294 1.24 712,796 3.61 2 0.07 85,376 1.63 22,607 0.83 57,229 1.81 275,508 1.38 K a n s a s Kansas 64. Summary Statistics for Natural Gas Kansas, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 9,681 9,348 9,156 8,571 7,694 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 18,400 19,472 19,365 22,020 21,388 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 580,572 605,578 628,900 636,582 629,755 From Oil Wells ........................................... 79,169 82,579 85,759 86,807 85,876 Total.............................................................. 659,741 688,157 714,659 723,389 715,631 Repressuring ................................................

442

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

819,046 819,046 347,043 3.91 245,740 1.24 40 1.36 399,522 7.62 32,559 1.19 201,390 6.38 980,555 4.90 M i c h i g a n Michigan 70. Summary Statistics for Natural Gas Michigan, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,223 1,160 1,323 1,294 2,061 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 3,257 5,500 6,000 5,258 5,826 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 120,287 126,179 136,989 146,320 201,123 From Oil Wells ........................................... 80,192 84,119 91,332 97,547 50,281 Total.............................................................. 200,479 210,299 228,321 243,867 251,404 Repressuring ................................................

443

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

W W y o m i n g -775,410 50,253 0.57 666,036 3.37 14 0.48 13,534 0.26 87 0.00 9,721 0.31 73,609 0.37 Wyoming 98. Summary Statistics for Natural Gas Wyoming, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 10,826 10,933 10,879 12,166 12,320 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 3,111 3,615 3,942 4,196 4,510 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 751,693 880,596 949,343 988,671 981,115 From Oil Wells ........................................... 285,125 142,006 121,519 111,442 109,434 Total.............................................................. 1,036,817 1,022,602 1,070,862 1,100,113 1,090,549 Repressuring

444

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-67,648 -67,648 75,616 0.85 480,828 2.43 0 0.00 16,179 0.31 31,767 1.16 27,315 0.86 150,877 0.75 A l a s k a Alaska 49. Summary Statistics for Natural Gas Alaska, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 9,638 9,907 9,733 9,497 9,294 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 112 113 104 100 102 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 198,603 190,139 180,639 179,470 183,747 From Oil Wells ........................................... 2,427,110 2,588,202 2,905,261 3,190,433 3,189,837 Total.............................................................. 2,625,713 2,778,341 3,085,900 3,369,904 3,373,584 Repressuring

445

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

628,189 628,189 449,511 5.07 765,699 3.88 100 3.41 528,662 10.09 39,700 1.45 347,721 11.01 1,365,694 6.83 West North Central West North Central 39. Summary Statistics for Natural Gas West North Central, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 10,177 9,873 9,663 9,034 8,156 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 18,569 19,687 19,623 22,277 21,669 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 594,551 626,728 651,594 655,917 648,822 From Oil Wells ........................................... 133,335 135,565 136,468 134,776 133,390 Total.............................................................. 727,886 762,293

446

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,048,760 1,048,760 322,661 3.64 18,131 0.09 54 1.84 403,264 7.69 142,688 5.22 253,075 8.01 1,121,742 5.61 N e w Y o r k New York 80. Summary Statistics for Natural Gas New York, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 329 264 242 197 232 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 5,906 5,757 5,884 6,134 6,208 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 22,697 20,587 19,937 17,677 17,494 From Oil Wells ........................................... 824 610 539 723 641 Total.............................................................. 23,521 21,197 20,476 18,400 18,134 Repressuring ................................................

447

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,554,530 1,554,530 311,229 3.51 3,094,431 15.67 442 15.08 299,923 5.72 105,479 3.86 210,381 6.66 927,454 4.64 Mountain Mountain 43. Summary Statistics for Natural Gas Mountain, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 38,711 38,987 37,366 39,275 38,944 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 30,965 34,975 38,539 38,775 41,236 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 2,352,729 2,723,393 3,046,159 3,131,205 3,166,689 From Oil Wells ........................................... 677,771 535,884 472,397 503,986 505,903 Total.............................................................. 3,030,499 3,259,277 3,518,556

448

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,592,465 1,592,465 716,648 8.08 239,415 1.21 182 6.21 457,792 8.73 334,123 12.23 320,153 10.14 1,828,898 9.14 South Atlantic South Atlantic 40. Summary Statistics for Natural Gas South Atlantic, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 3,307 3,811 4,496 4,427 4,729 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 39,412 35,149 41,307 37,822 36,827 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 206,766 208,892 234,058 236,072 233,409 From Oil Wells ........................................... 7,584 8,011 8,468 7,133 6,706 Total.............................................................. 214,349 216,903 242,526 243,204 240,115

449

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,999,161 1,999,161 895,529 10.10 287,933 1.46 1,402 47.82 569,235 10.86 338,640 12.39 308,804 9.78 2,113,610 10.57 Pacific Contiguous Pacific Contiguous 44. Summary Statistics for Natural Gas Pacific Contiguous, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 3,896 3,781 3,572 3,508 2,082 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 1,142 1,110 1,280 1,014 996 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 156,635 124,207 117,725 96,329 88,173 From Oil Wells ........................................... 294,800 285,162 282,227 289,430 313,581 Total.............................................................. 451,435 409,370

450

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-122,394 -122,394 49,997 0.56 178,984 0.91 5 0.17 37,390 0.71 205 0.01 28,025 0.89 115,622 0.58 West Virginia West Virginia 96. Summary Statistics for Natural Gas West Virginia, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 2,356 2,439 2,565 2,499 2,703 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 38,250 33,716 39,830 36,144 35,148 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... E 182,000 171,024 183,773 186,231 178,984 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. E 182,000 171,024 183,773 186,231 178,984 Repressuring ................................................

451

Gas vesicles.  

Science Journals Connector (OSTI)

...the gas vesicles simply reduce their sinking rates and...remaining suspended in the water column. A microorganism...phenomena as stratification, water- bloom formation, and...the many proteins that make up the phycobilisome (73...flagellate bacteria in natural waters. The natural selection...

A E Walsby

1994-03-01T23:59:59.000Z

452

Gas vesicles.  

Science Journals Connector (OSTI)

...these costs can be compared is in units of energy expenditure per time (joules per second...requires 7.24 x 10-18 kg of Gvp. The energy cost of making this protein, Eg, is...Eg = 2.84 x 101- o J. The rate of energy expenditure in gas vesicle synthesis then...

A E Walsby

1994-03-01T23:59:59.000Z

453

Gas sensor  

DOE Patents [OSTI]

A gas sensor is described which incorporates a sensor stack comprising a first film layer of a ferromagnetic material, a spacer layer, and a second film layer of the ferromagnetic material. The first film layer is fabricated so that it exhibits a dependence of its magnetic anisotropy direction on the presence of a gas, That is, the orientation of the easy axis of magnetization will flip from out-of-plane to in-plane when the gas to be detected is present in sufficient concentration. By monitoring the change in resistance of the sensor stack when the orientation of the first layer's magnetization changes, and correlating that change with temperature one can determine both the identity and relative concentration of the detected gas. In one embodiment the stack sensor comprises a top ferromagnetic layer two mono layers thick of cobalt deposited upon a spacer layer of ruthenium, which in turn has a second layer of cobalt disposed on its other side, this second cobalt layer in contact with a programmable heater chip.

Schmid, Andreas K.; Mascaraque, Arantzazu; Santos, Benito; de la Figuera, Juan

2014-09-09T23:59:59.000Z

454

Liquid Natural Gas  

Science Journals Connector (OSTI)

Liquid Natural Gas ... IN A new technique for storing natural gas at the East Ohio Gas Co. plant, Cleveland, Ohio, the gas is liquefied before passing to the gas holders. ... Natural gas contains moisture and carbon dioxide, both of which liquefy before the natural gas and are somewhat of a nuisance because upon solidification they clog the pipes. ...

W. F. SCHAPHORST

1941-04-25T23:59:59.000Z

455

9 - Hybrid fuel cell gas turbine (FC/GT) combined cycle systems  

Science Journals Connector (OSTI)

Abstract: Hybrid fuel cell gas turbine systems consisting of high-temperature fuel cells (HTFCs) integrated into cycles with gas turbines can significantly increase fuel-to-electricity conversion efficiency and lower emissions of greenhouse gases and criteria pollutants from the electric power sector. In addition, the separated anode and cathode compartments of the fuel cell can enable CO2 separation and sequestration for some cycle configurations. Hybrid fuel cell gas turbine technology has the potential to operate on natural gas, digester gas, landfill gas, and coal and biomass syngas. HTFC technologies are emerging with high reliability and durability, which should enable them to be integrated with gas turbine technology to produce modern hybrid power systems. Advanced thermodynamic and dynamic simulation capabilities have been developed and demonstrated to enable future system integration and control.

J. Brouwer

2012-01-01T23:59:59.000Z

456

Bio-energy recovery from high-solid organic substrates by dry anaerobic bio-conversion processes: a review  

Science Journals Connector (OSTI)

Dry anaerobic bio-conversion (D-AnBioC) of high-solid organic ... involved in bioreactor designing; (3) present factors influencing the bio-conversion efficiency; (4) discuss the microbiology of ... existing comm...

Obuli P. Karthikeyan; C. Visvanathan

2013-09-01T23:59:59.000Z

457

Biology, ecology, and biotechnological applications of anaerobic bacteria adapted to environmental stresses in temperature, pH, salinity, or substrates.  

Science Journals Connector (OSTI)

...liquors from the pulp and paper industry and oil shale rock refining wastes from the synfuel industry. Effective biodegradation of these wastes may require salt-tolerant...anaerobic bacteria. Coal gasification and waste treatment. The...

S E Lowe; M K Jain; J G Zeikus

1993-06-01T23:59:59.000Z

458

Mechanically versus electro-magnetically braked cycle ergometer: performance and energy cost of the Wingate Anaerobic Test  

Science Journals Connector (OSTI)

Performance and metabolic profiles of the Wingate Anaerobic Test (WAnT) were compared between a mechanically resisted (ME) and an electro-magnetically braked (EE) cycle ergometer. Fifteen healthy subjects (24....

D. Micklewright; A. Alkhatib; R. Beneke

2006-04-01T23:59:59.000Z

459

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

E-Print Network [OSTI]

. Biogas production was produced from primary sludge and quantified. Total energy production in MFCs could: Microbial fuel cell Primary sludge Digested sludge Energy Biogas a b s t r a c t The long-term performance. Digested sludge can be further composted for agriculture uses, and biogas can be con- verted

460

NATURAL GAS MARKET ASSESSMENT  

E-Print Network [OSTI]

CALIFORNIA ENERGY COMMISSION NATURAL GAS MARKET ASSESSMENT PRELIMINARY RESULTS In Support.................................................................................... 6 Chapter 2: Natural Gas Demand.................................................................................................. 10 Chapter 3: Natural Gas Supply

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


461

,"Missouri Natural Gas Summary"  

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

Gas Sold to Commercial Consumers (Dollars per Thousand Cubic Feet)","Missouri Natural Gas Industrial Price (Dollars per Thousand Cubic Feet)","Missouri Natural Gas Price Sold to...

462

Natural Gas Weekly Update  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

natural gas production output. Rigs Natural Gas Transportation Update Tennessee Gas Pipeline Company yesterday (August 4) said it is mobilizing equipment and manpower for...

463

Shale gas is natural gas trapped inside  

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

Shale gas is natural gas trapped inside formations of shale - fine grained sedimentary rocks that can be rich sources of petroleum and natural gas. Just a few years ago, much of...

464

Gas Chromatography  

Science Journals Connector (OSTI)

Researchers from the University of Missouri and ICx Nomadics have reported on the use of a optofluidic ring resonator (OFRR) sensor for on-column detection ?. ... Although substantial differences were noted between fresh and aged (or oxidized) oils, many of the compounds in the oxidized oil went unidentified due to lack of library mass spectral data. ... A high resolution MEMS based gas chromatography column for the analysis of benzene and toluene gaseous mixtures ...

Frank L. Dorman; Joshua J. Whiting; Jack W. Cochran; Jorge Gardea-Torresdey

2010-05-26T23:59:59.000Z

465

Controls on Gas Hydrate Formation and Dissociation  

SciTech Connect (OSTI)

The main objectives of the project were to monitor, characterize, and quantify in situ the rates of formation and dissociation of methane hydrates at and near the seafloor in the northern Gulf of Mexico, with a focus on the Bush Hill seafloor hydrate mound; to record the linkages between physical and chemical parameters of the deposits over the course of one year, by emphasizing the response of the hydrate mound to temperature and chemical perturbations; and to document the seafloor and water column environmental impacts of hydrate formation and dissociation. For these, monitoring the dynamics of gas hydrate formation and dissociation was required. The objectives were achieved by an integrated field and laboratory scientific study, particularly by monitoring in situ formation and dissociation of the outcropping gas hydrate mound and of the associated gas-rich sediments. In addition to monitoring with the MOSQUITOs, fluid flow rates and temperature, continuously sampling in situ pore fluids for the chemistry, and imaging the hydrate mound, pore fluids from cores, peepers and gas hydrate samples from the mound were as well sampled and analyzed for chemical and isotopic compositions. In order to determine the impact of gas hydrate dissociation and/or methane venting across the seafloor on the ocean and atmosphere, the overlying seawater was sampled and thoroughly analyzed chemically and for methane C isotope ratios. At Bush hill the pore fluid chemistry varies significantly over short distances as well as within some of the specific sites monitored for 440 days, and gas venting is primarily focused. The pore fluid chemistry in the tub-warm and mussel shell fields clearly documented active gas hydrate and authigenic carbonate formation during the monitoring period. The advecting fluid is depleted in sulfate, Ca Mg, and Sr and is rich in methane; at the main vent sites the fluid is methane supersaturated, thus bubble plumes form. The subsurface hydrology exhibits both up-flow and down-flow of fluid at rates that range between 0.5 to 214 cm/yr and 2-162 cm/yr, respectively. The fluid flow system at the mound and background sites are coupled having opposite polarities that oscillate episodically between 14 days to {approx}4 months. Stability calculations suggest that despite bottom water temperature fluctuations, of up to {approx}3 C, the Bush Hill gas hydrate mound is presently stable, as also corroborated by the time-lapse video camera images that did not detect change in the gas hydrate mound. As long as methane (and other hydrocarbon) continues advecting at the observed rates the mound would remain stable. The {_}{sup 13}C-DIC data suggest that crude oil instead of methane serves as the primary electron-donor and metabolic substrate for anaerobic sulfate reduction. The oil-dominated environment at Bush Hill shields some of the methane bubbles from being oxidized both anaerobically in the sediment and aerobically in the water column. Consequently, the methane flux across the seafloor is higher at Bush hill than at non-oil rich seafloor gas hydrate regions, such as at Hydrate Ridge, Cascadia. The methane flux across the ocean/atmosphere interface is as well higher. Modeling the methane flux across this interface at three bubble plumes provides values that range from 180-2000 {_}mol/m{sup 2} day; extrapolating it over the Gulf of Mexico basin utilizing satellite data is in progress.

Miriam Kastner; Ian MacDonald

2006-03-03T23:59:59.000Z

466

The metagenome of an anaerobic microbial community decomposing poplar wood chips  

SciTech Connect (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

467

Effects of microbial processes on gas generation under expected WIPP repository conditions: Annual report through 1992  

SciTech Connect (OSTI)

Microbial processes involved in gas generation from degradation of the organic constituents of transuranic waste under conditions expected at the Waste Isolation Pilot Plant (WIPP) repository are being investigated at Brookhaven National Laboratory. These laboratory studies are part of the Sandia National Laboratories -- WIPP Gas Generation Program. Gas generation due to microbial degradation of representative cellulosic waste was investigated in short-term (< 6 months) and long-term (> 6 months) experiments by incubating representative paper (filter paper, paper towels, and tissue) in WIPP brine under initially aerobic (air) and anaerobic (nitrogen) conditions. Samples from the WIPP surficial environment and underground workings harbor gas-producing halophilic microorganisms, the activities of which were studied in short-term experiments. The microorganisms metabolized a variety of organic compounds including cellulose under aerobic, anaerobic, and denitrifying conditions. In long-term experiments, the effects of added nutrients (trace amounts of ammonium nitrate, phosphate, and yeast extract), no nutrients, and nutrients plus excess nitrate on gas production from cellulose degradation.

Francis, A.J.; Gillow, J.B.

1993-09-01T23:59:59.000Z

468

Gas Sampling Considerations  

Science Journals Connector (OSTI)

Gas sampling is carried out to measure the quality of a gas. Gas samples are sometimes acquired by in situ observation within the main gas body by using remote or visual observation for specific properties. A mor...

Alvin Lieberman

1992-01-01T23:59:59.000Z

469

Georgia Tech Dangerous Gas  

E-Print Network [OSTI]

1 Georgia Tech Dangerous Gas Safety Program March 2011 #12;Georgia Tech Dangerous Gas Safety.......................................................................................................... 5 6. DANGEROUS GAS USAGE REQUIREMENTS................................................. 7 6.1. RESTRICTED PURCHASE/ACQUISITION RULES: ................................................ 7 7. FLAMMABLE GAS

Sherrill, David

470

Evaluating fugacity models for trace components in landfill gas  

Science Journals Connector (OSTI)

A fugacity approach was evaluated to reconcile loadings of vinyl chloride (chloroethene), benzene, 1,3-butadiene and trichloroethylene in waste with concentrations observed in landfill gas monitoring studies. An evaluative environment derived from fictitious but realistic properties such as volume, composition, and temperature, constructed with data from the Brogborough landfill (UK) test cells was used to test a fugacity approach to generating the source term for use in landfill gas risk assessment models (e.g. GasSim). SOILVE, a dynamic Level II model adapted here for landfills, showed greatest utility for benzene and 1,3-butadiene, modelled under anaerobic conditions over a 10 year simulation. Modelled concentrations of these components (95?300 ?g m?3; 43 ?g m?3) fell within measured ranges observed in gas from landfills (24?300–180?000 ?g m?3; 20–70 ?g m?3). This study highlights the need (i) for representative and time-referenced biotransformation data; (ii) to evaluate the partitioning characteristics of organic matter within waste systems and (iii) for a better understanding of the role that gas extraction rate (flux) plays in producing trace component concentrations in landfill gas.

Sophie Shafi; Andrew Sweetman; Rupert L. Hough; Richard Smith; Alan Rosevear; Simon J.T. Pollard

2006-01-01T23:59:59.000Z

471

RENEWABLE ENERGY SOURCES Antonia V. Herzog  

E-Print Network [OSTI]

.4.2. Germany 3.4.3. Denmark 3.4.4. Spain 3.4.5. Great Britain 3.4.6. Developing Countries 3.5. Conclusions 4. Anaerobic Digestion: Combustible gas called biogas produced from biomass through low temperature biological, typically discounted to net present values. Biogas: The common name for a gas produced by the biological

Kammen, Daniel M.

472

Some factors influencing digestion and growth rates of beef steers  

E-Print Network [OSTI]

~K 20i49 34. 78 '2221 20+49 26. 81 mgs 20i49 26, 81 19i92 66i51 KlI 19a92 ~38. 7 21i10 ~0+9 Oi93 Oe93 0. 93 0, 90 8. 5T 98 e9 0 94 8. 63 98. 9 Oi94 Oi94 5. 23 li03 7. 49 4 01 KGF 1 i03 4il2 li22 lg ilHSUL')S kg... of the steers under the ccnditicns cf this oxparincnt? Dttssttss trials Tho results of tbo digestion tria1s aro a~ed in Table 5. Ths addition of cny supple+mt to tbo basal ration u ed throughout tlaso studies very signifioantIy (p (0. 01) inprcved ths...

Gossett, John Warren

2012-06-07T23:59:59.000Z

473

Digestibility of Sugar, Starches, and Pentosans of Roughages.  

E-Print Network [OSTI]

gms. No. 3649-50. ..................... Eaten ........................................ Excreted 1491 gms. No. 3700.. .................. Sugars Mono. 55.8 2.6 53.2 1.5 51.7 97.2 97.5 F8.0 28.0 Starch. 212.4 10.0 202.4 6.7 195.7 96.6... 95.9 35.2 35.2 Di. 54.0 .3 -- 53.7 .7 53.5 99.6 99.7 12.8 12.8 .1 99.2 99.2 33.6 0 33.6 1.1 32.5 96.7 1.2 ................................. Digested. Reduc- ing sugar from hemi- cellulose. 111.2 5.2 106.0 48.8 57...

Fraps, G. S. (George Stronach)

1916-01-01T23:59:59.000Z

474

Gas Chromatography  

Science Journals Connector (OSTI)

He received his B.S. degree in 1970 from Rhodes College in Memphis, TN, his M.S. degree in 1973 from the University of Missouri, Columbia, MO, and his Ph.D. degree in 1975 from Dalhousie University, Halifax, Nova Scotia, Canada. ... A review (with 145 references) on the role of carrier gases on the separation process (A4) demonstrates that carrier gas interactions are integral to the chromatographic process. ... In another report, activity coefficients for refrigerants were evaluated with a polyol ester oil stationary phase (C22). ...

Gary A. Eiceman; Herbert H. Hill, Jr.; Jorge Gardea-Torresdey

2000-04-25T23:59:59.000Z

475

CX-004527: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

527: Categorical Exclusion Determination 527: Categorical Exclusion Determination CX-004527: Categorical Exclusion Determination State Energy Program - Anaerobic Digester CX(s) Applied: B5.1 Date: 11/18/2010 Location(s): Milton, Wisconsin Office(s): Energy Efficiency and Renewable Energy, Golden Field Office United Ethanol is proposing install an anaerobic digester at the plant that will use excess organic solids from the ethanol production process (such as thin stillage) to produce methane that Will displace a large amount of natural gas use at the plant. All methane generated by the anaerobic digester will be used on site. United Ethanol, LLC will receive $2,250,000 in State Energy Program funds for equipment. There will be three digester tanks placed above ground measuring 105 feet in diameter and 48 feet in

476

Macroscopic Biofilms in Fracture-Dominated Sediment That Anaerobically Oxidize Methane  

Science Journals Connector (OSTI)

...resistivity values caused by high gas hydrate saturation in the fractures (41...fractures partially filled with gas hydrate and feeding methane upwards toward...collected as a part of the National Gas Hydrate Program cruise 01 (NGHP01) in...

B. R. Briggs; J. W. Pohlman; M. Torres; M. Riedel; E. L. Brodie; F. S. Colwell

2011-08-05T23:59:59.000Z

477

Biogeochemical and Molecular Signatures of Anaerobic Methane Oxidation in a Marine Sediment  

Science Journals Connector (OSTI)

...bacteria is present in gas-hydrate-rich sediment. Laboratory...consisted of very fine sand, silt, and clay, and...we found that special gas hydrate conditions (very low...oxidation above marine gas hydrate. . S. J. Burns Carbon...

Trine R. Thomsen; Kai Finster; Niels B. Ramsing

2001-04-01T23:59:59.000Z

478

Impacts of Ethanol on Anaerobic Production of Tert-Butyl Alcohol (TBA) from Methyl Tert-Butyl Ether (MTBE) in Groundwater  

E-Print Network [OSTI]

Project title: Impacts of Ethanol on Anaerobic Production oftert-butanol (TBA). As ethanol is being promoted as ainvestigate the effect of ethanol release on existing MTBE

Scow, K M; MacKay, Douglas

2008-01-01T23:59:59.000Z

479

Evaluation of protein fractionation and ruminal and intestinal digestibility of corn milling co-products  

Science Journals Connector (OSTI)

Novel corn milling co-products developed from technological advancements in ethanol production vary widely in chemical composition and nutrient availability. The objectives of this study were to characterize feed protein fractions and evaluate differences in rumen-undegradable protein (RUP) and its digestible fraction (dRUP), amino acid concentration, and in vitro gas production of 7 corn milling co-products. The crude protein (CP; % of dry matter) of co-products was 12.7 for germ, 26.9 for dried distillers grains plus solubles that had no heat exposure before fermentation (DDGS1), 45.4 for high-protein dried distillers grains (HPDDG), 12.7 for bran, 30.2 for wet distillers grains plus solubles (WDGS), 23.1 for wet corn gluten feed (WCGF), and 26.0 for dried distillers grains plus solubles that had heat exposure before fermentation (DDGS2). Two ruminally and duodenally fistulated Holstein steers weighing 663 ± 24 kg were used to determine RUP and dRUP with the in situ and mobile bag techniques. Samples of each feed were ruminally incubated for 16 h, and mobile bags were exposed to simulated abomasal digestion before insertion into the duodenum and subsequent collection in the feces. Protein fractions A, B1, B2, B3, and C were characterized as follows (% CP): germ = 30.0, 15.0, 38.1, 13.5, 3.4; DDGS1 = 17.0, 7.0, 67.0, 4.8, 4.2; HPDDG = 7.4, 0.6, 82.4, 8.8, 0.8; bran = 33.5, 4.0, 54.3, 6.0, 2.2; WDGS = 18.6, 2.4, 53.1, 11.0, 14.9; WCGF = 36.6, 15.9, 33.2, 10.1, 4.1; and DDGS2 = 17.9, 2.1, 41.1, 11.1, 27.9. The proportions of RUP and dRUP were different and are reported as follows (% CP): DDGS2 = 56.3, 91.9; HPDDG = 55.2, 97.7; WDGS = 44.7, 93.1; DDGS1 = 33.2, 92.1; bran = 20.7, 65.8; germ = 16.5, 66.8; and WCGF = 11.5, 51.1. The concentrations of Lys and Met in the RUP were different and are listed as follows (% CP): germ = 2.9, 2.0; DDGS1 = 1.9, 2.0; HPDDG = 2.0, 3.2; bran = 3.2, 1.5; WDGS = 1.9, 2.3; WCGF = 3.5, 1.6; and DDGS2 = 1.9, 2.4. In vitro gas production (mL/48 h) was highest for germ (52.1) followed by bran (50.1), WDGS (40.7), DDGS2 (40.1), WCGF (39.0), DDGS1 (38.6), and HPDDG (37.5). Comparison of co-products defined differences in chemical composition, protein fractionation, ruminal availability, and microbial fermentation.

J.M. Kelzer; P.J. Kononoff; L.O. Tedeschi; T.C. Jenkins; K. Karges; M.L. Gibson

2010-01-01T23:59:59.000Z

480

Fuel gas conditioning process  

DOE Patents [OSTI]

A process for conditioning natural gas containing C.sub.3+ hydrocarbons and/or acid gas, so that it can be used as combustion fuel to run gas-powered equipment, including compressors, in the gas field or the gas processing plant. Compared with prior art processes, the invention creates lesser quantities of low-pressure gas per unit volume of fuel gas produced. Optionally, the process can also produce an NGL product.

Lokhandwala, Kaaeid A. (Union City, CA)

2000-01-01T23:59:59.000Z

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

Influence de l'addition de phosphore sur la digestion d'une paille traite l'ammoniac par les microorganismes du rumen  

E-Print Network [OSTI]

infusing the fermenters containing 15 g ammoniated straw per bag improved significantly fiber digestion

Paris-Sud XI, Université de

482

Development of monitoring and control technology based on trace gas monitoring. Final report  

SciTech Connect (OSTI)

Trace gases are generated by many biological reactions. During anaerobic decomposition, trace levels of hydrogen (H{sub 2}) and carbon monoxide (CO) gases are produced. It was shown previously that these trace gases are intrinsically related to the biochemical reactions occurring and, therefore, offer promise for on-line process monitoring and control. This work was designed to test how effectively hydrogen and CO could be to monitor high-rate anaerobic systems that has significant mass transfer and complex hydraulics. An experimental program was designed to examine the behavior of an upflow anaerobic sludge blanket (UASB) reactor system under steady state and in response to organic loading perturbations. The responses of trace gases CO and H{sub 2} were tracked using an on-line, real-time gas-monitoring system linked to a computer-controlled data acquisition package. Data on conventional process parameters such as pH, chemical oxygen demand (COD), volatile fatty acids (VFAs) were concurrently collected. Monitoring of conventional process indicators (i.e., pH, VFA, gas production) and trace gas (H{sub 2} and CO) indicators was conducted using a matrix of nine different steady-state OLRs (4-23 kg COD/m{sup 3} -d) and system HRTs (0.5 to 2.5 days) was performed to determine any correlation among the indicators. Of OLR, HRT, and influent COD, only OLR had any significant influence on the process indicators examined. All parameters except methane increased with increases in OLR; methane decreased with increased OLR. The OLR and gas production rate (GP) were observed to be linearly correlated.

Liebowitz, B.

1997-07-01T23:59:59.000Z

483

A Not-So-Cheesy Approach to Clean Energy Manufacturing | Department of  

Broader source: Energy.gov (indexed) [DOE]

A Not-So-Cheesy Approach to Clean Energy Manufacturing A Not-So-Cheesy Approach to Clean Energy Manufacturing A Not-So-Cheesy Approach to Clean Energy Manufacturing May 30, 2012 - 6:24pm Addthis Betin Incorporated's generator converts gas from the plant's anaerobic digester into electricity. | Courtesy of Montchevré. Betin Incorporated's generator converts gas from the plant's anaerobic digester into electricity. | Courtesy of Montchevré. Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs What does this project do? Betin Incorporated recently installed an "anaerobic digester" that transforms industrial waste into electricity. In support of the Obama Administration's goals for quality, American-made clean energy products, the Energy Department's State Energy Program

484

EA-1624: Finding of No Significant Impact | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

4: Finding of No Significant Impact 4: Finding of No Significant Impact EA-1624: Finding of No Significant Impact Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities The Department of Energy's National Energy Technology Laboratory has prepared an Environmental Assessment that evaluates the potential environmental impacts to provide partial funding through a cooperative agreement with the City of Auburn for the design and construction of a cnetralized anaerobic digester facility for the production of approximately 3 Megawatts of renewable electric power in Auburn, New York. Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities Auburn, New York More Documents & Publications EA-1624: Final Environmental Assessment EA-1907: Finding of No Significant Impact

485

A Not-So-Cheesy Approach to Clean Energy Manufacturing | Department of  

Broader source: Energy.gov (indexed) [DOE]

A Not-So-Cheesy Approach to Clean Energy Manufacturing A Not-So-Cheesy Approach to Clean Energy Manufacturing A Not-So-Cheesy Approach to Clean Energy Manufacturing May 30, 2012 - 6:24pm Addthis Betin Incorporated's generator converts gas from the plant's anaerobic digester into electricity. | Courtesy of Montchevré. Betin Incorporated's generator converts gas from the plant's anaerobic digester into electricity. | Courtesy of Montchevré. Kristin Swineford Communication Specialist, Weatherization and Intergovernmental Programs What does this project do? Betin Incorporated recently installed an "anaerobic digester" that transforms industrial waste into electricity. In support of the Obama Administration's goals for quality, American-made clean energy products, the Energy Department's State Energy Program

486

EA-1624: Finding of No Significant Impact | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

24: Finding of No Significant Impact 24: Finding of No Significant Impact EA-1624: Finding of No Significant Impact Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities The Department of Energy's National Energy Technology Laboratory has prepared an Environmental Assessment that evaluates the potential environmental impacts to provide partial funding through a cooperative agreement with the City of Auburn for the design and construction of a cnetralized anaerobic digester facility for the production of approximately 3 Megawatts of renewable electric power in Auburn, New York. Auburn Landfill Gas Electric Generators and Anaerobic Digester Energy Facilities Auburn, New York More Documents & Publications EA-1624: Final Environmental Assessment EA-1907: Finding of No Significant Impact

487

Determination of Wear Metals in Marine Lubricating Oils by Microwave Digestion and Atomic Absorption Spectrometry  

Science Journals Connector (OSTI)

?The difficulties associated with the development of a microwave-assisted acid digestion of lubricating oils in determination of wear metals are presented. The interest of this sample treatment lies in its bas...

Celestino Sanz-Segundo; María P. Hernández-Artiga…

1999-11-01T23:59:59.000Z

488

Chemical oxidation of tryptic digests to improve sequence coverage in peptide mass fingerprint protein identification  

E-Print Network [OSTI]

Peptide mass fingerprinting (PMF) of protein digests is a widely-accepted method for protein identification in MS-based proteomic studies. Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) is the technique of choice in PMF...

Lucas, Jessica Elaine

2004-09-30T23:59:59.000Z

489

An in vitro digestibility study on human milk and related proteins used in infant formula  

E-Print Network [OSTI]

Formula. (August 1988) Adriana Coromoto Vethencourt-Petrini, B. S. , Texas A & M University Chair of Advisory Committee: Dr. Charles W. Dill Human skim milk, whey proteins and soy protein isolate were subjected to a pepsin-pancreatin in vitro..., respectively. The digestion was monitored by measuring the automatic addition of acid or base, the increase of free amino groups, and the decrease in molecular weight of the protein components involved in the digestion. Whey proteins needed the largest...

Vethencourt-Petrini, Adriana Coromoto

2012-06-07T23:59:59.000Z

490

Effect of sorghum type on the digestibility of segmented and whole plant sorghum silages  

E-Print Network [OSTI]

EFFECT OF SORGHUM TYPE ON THE DIGESTIBILITY OF SEGMENTED AND NHOLE PLANT SORGHUM SILAGES A Thesis RODRIGO E. SPIEGEL Submitted to the Grs duate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1975 Major Suhject: Animal Nutri tion EFFECT OF SORGHUM TYPE ON THE DIGESTIBILITY OF SEGMENTED AND WHOLE PLANT SORGHUM SILAGES A Thesis by RODRIGO E. SPIEGEL Approved as to style and content by: ' Chairman o . Cdmmittee Member Head...

Spiegel Richa, Rodrigo Enrique

2012-06-07T23:59:59.000Z

491

Comparison of the intake and digestibility of different diets in Ilamas and sheep  

E-Print Network [OSTI]

conditions in llamas, which are more efficient in digesting plant cell walls than sheep. MATERIALS efficient than that of sheep. intake / digestibility / roughage / sheep / Ilama Résumé -Comparaison de l, lamas et moutons ont ingéré la même quantité de foin (17,4 glkg PV), mais les lamas ont ingéré 14% de

Paris-Sud XI, Université de

492

Composition and nutrient digestibility of weather-damaged sorghum in swine  

E-Print Network [OSTI]

COMPOSITION AND NUTRIENT DIGESTIBILITY OF WEATHER-DAMAGED SORGHUM IN SWINE A Thesis by Wendell Craig Bailey Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1980 Major subject: Animal Science COMPOSITION AND NUTRIENT DIGESTIBILITY OF WEATHER-DAMAGED SORGHUM IN SWINE A Thesis by Wendell Craig Bailey Approved as to style and content by: (Chairman) u~~4 ~ (Member) (Member) (Member...

Bailey, Wendell Craig

2012-06-07T23:59:59.000Z

493

Purification and properties of a biologically active peptide released from bovine lactoferrin by pepsin digestion  

E-Print Network [OSTI]

PURIFICATION AND PROPERTIES OF A BIOLOGICALLY ACTIVE PEPTIDE RELEASED FROM BOVINE LACTOFERRIN BY PEPSIN DIGESTION A Thesis by DENISSE ALICIA MAURER Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment... of the requirements for the degree of MASTER QF SCIENCE May 1995 Major Subject: Food Science and Technology PURIFICATION AND PROPERTIES OF A BIOLOGICALLY ACTIVE PEPTIDE RELEASED FROM BOVINE LACTOFERRIN BY PEPSIN DIGESTION A Thesis by DENISSE ALICIA MAURER...

Maurer, Denisse Alicia

1995-01-01T23:59:59.000Z

494

Anaerobic fermentation of rice straw and chicken manure to carboxylic acids  

E-Print Network [OSTI]

biomass (Lynd et al., 2002). Carboxylic acids (C2? C7) are produced from anaerobic fermentation. Because they have a high market value, these acids can be recovered and sold. Alternatively, they can be converted to methane (biogas) or chemicals (e... conditions, both of which contribute heavily to production costs. Zhang and Zhang (1999) studied biogasification of rice straw to produce biogas (CH4 (50%)); however, methane is a low-value product. 1.6 The MixAlco Process An alternative to SSF...

Agbogbo, Frank Kwesi

2007-04-25T23:59:59.000Z

495

Investigation of possible alternate end products of anaerobic metabolism in the Gulf toadfish, Opsanus beta  

E-Print Network [OSTI]

accumulated due to anoxia in the fish was lactate. Succinate and alanine showed slight or no accumulation with t1me. Alanine actually showed reduced pool size due to anox1a and hypoxia as compared to 1n vitro aerobic tissue pool-size. Even though in vivo... anaerobic tissues showed only slightly elevated and time constant lactate concentrat1ons compared to 1n vitro aerob1c tissue, a C tracer ind1cated accumulation and an efflux 14 w1th1n the lactate pool. Total act1vity decreased with t1me. There- fore...

Trant, John Miller

1981-01-01T23:59:59.000Z

496

Neutron Gas  

Science Journals Connector (OSTI)

We assume that the neutron-neutron potential is well-behaved and velocity-dependent. We can then apply perturbation theory to find the energy per particle of a neutron gas, in the range of Fermi wave numbers 0.5

J. S. Levinger and L. M. Simmons

1961-11-01T23:59:59.000Z

497

Nitrogen content, amino acid composition and digestibility of fungi from a nutritional perspective in animal mycophagy  

Science Journals Connector (OSTI)

Fungi comprise a major part of the diet of many animals. Even so, the nutritional value of fungi has been much debated, with some arguing that fungi are nutritionally poor. However, the chemical composition of fungi and of the biology of the animals that eat them are not well understood, particularly in reference to amino acid (AA) composition of fungi and digestibility of fungal protein. We analysed fibre, total nitrogen (N), available N, and AA contents and measured in vitro digestibility of a wide range of epigeous and hypogeous fungi collected in Australia and the USA to test three hypotheses: (i) fungi are nutritionally poor because they contain few nutrients or are otherwise of low digestibility, (ii) fungi vary substantially in their nutritional composition; and (iii) animals can counter this variable quality by eating diverse taxa. Resultant data indicate many fungi are a reasonable source of \\{AAs\\} and digestible nitrogen. However, they vary highly between species in AA content, and the protein has a poor balance of digestible AAs. This helps explain why many mycophagous animals eat a wide array of fungi and often have digestive strategies to cope with fungi, such as foregut fermentation. Another common strategy is to supplement the diet with high quality protein, such as insect protein. Accordingly, evaluating nutritional value of fungi requires consideration of physiology of the animal species and their whole diet.

Ian R. Wallis; Andrew W. Claridge; James M. Trappe

2012-01-01T23:59:59.000Z

498

Coupling between H+ transport and anaerobic glycolysis in turtle urinary bladder: effect of inhibitors of H+ ATPase  

SciTech Connect (OSTI)

The coupling between H+ transport (JH) and anaerobic glycolysis was examined in vitro in an anaerobic preparation of turtle urinary bladder. JH was measured as the short-circuit current after Na+ transport was abolished with ouabain and by pH stat titration. The media were gassed with N2 and 1% CO2 (PO2 less than 0.5 mm Hg) and contained 10 mM glucose. Under these conditions, JH was not inhibited by 3 mM serosal (S) cyanide or by 0.1 mM mucosal (M) dinitrophenol. Control anaerobic lactate production (Jlac) of 47 bladders was plotted as a function of simultaneously measured JH. The slope of Jlac on JH was 0.58

Steinmetz, P.R.; Husted, R.F.; Mueller, A.; Beauwens, R.

1981-03-15T23:59:59.000Z

499

Natural Gas Hydrates  

Science Journals Connector (OSTI)

Natural Gas Hydrates ... Formation Characteristics of Synthesized Natural Gas Hydrates in Meso- and Macroporous Silica Gels ... Formation Characteristics of Synthesized Natural Gas Hydrates in Meso- and Macroporous Silica Gels ...

Willard I. Wilcox; D. B. Carson; D. L. Katz

1941-01-01T23:59:59.000Z

500

Gas Kick Mechanistic Model  

E-Print Network [OSTI]

Gas kicks occur during drilling when the formation pressure is greater than the wellbore pressure causing influx of gas into the wellbore. Uncontrolled gas kicks could result in blowout of the rig causing major financial loss and possible injury...

Zubairy, Raheel

2014-04-18T23:59:59.000Z