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Sample records for unknown keywords biogas

  1. Biogas utilization

    SciTech Connect

    Moser, M.A.

    1996-01-01

    Options for successfully using biogas depend on project scale. Almost all biogas from anaerobic digesters must first go through a gas handling system that pressurizes, meters, and filters the biogas. Additional treatment, including hydrogen sulfide-mercaptan scrubbing, gas drying, and carbon dioxide removal may be necessary for specialized uses, but these are complex and expensive processes. Thus, they can be justified only for large-scale projects that require high-quality biogas. Small-scale projects (less than 65 cfm) generally use biogas (as produced) as a boiler fuel or for fueling internal combustion engine-generators to produce electricity. If engines or boilers are selected properly, there should be no need to remove hydrogen sulfide. Small-scale combustion turbines, steam turbines, and fuel cells are not used because of their technical complexity and high capital cost. Biogas cleanup to pipeline or transportation fuel specifications is very costly, and energy economics preclude this level of treatment.

  2. Biogas utilization

    SciTech Connect

    Moser, M.A.

    1995-11-01

    Options for successfully using biomass depend on project scale. Almost all biogas from anaerobic digesters must first go through a gas handling system that pressurizes, meters, and filters the biogas. Additional treatment, including hydrogen sulfide-mercaptan scrubbing, gas drying, and carbon dioxide removal may be necessary for specialized uses, but these are complex and expensive processes. Thus, they can be justified only for large-scale projects that require high-quality biogas. Small-scale projects (less than 65 cfm) generally use biogas (as produced) as a boiler fuel or for fueling internal combustion engine generators to produce electricity. If engines or boilers as selected properly, there should be no need to remove hydrogen sulfide. Small-scale combustion turbines, steam turbines, and fuel cells are not used because of their technical complexity and high capital cost. Biogas cleanup to pipeline or transportation fuel specification is very costly, and energy economics preclude this level of treatment.

  3. Abwicklungsgesellschaft Biogas I AG Formerly Schmack Biogas AG...

    OpenEI (Open Energy Information) [EERE & EIA]

    Abwicklungsgesellschaft Biogas I AG Formerly Schmack Biogas AG Jump to: navigation, search Name: Abwicklungsgesellschaft Biogas I AG (Formerly Schmack Biogas AG) Place: Schwandorf,...

  4. Guidebook on biogas development

    SciTech Connect

    Not Available

    1980-01-01

    This guidebook covers the practical aspects of small-scale biogas development suitable for use in rural areas in developing countries, especially those of the ESCAP region. It is intended that all aspects of biogas are covered so that someone with no knowledge of the subject can, with confidence, design, build, operate and maintain a biogas plant. Information on biogas technology in China is also included. Chapters cover: the biogas process; factors effecting gas-plant design and operation; the classification and design principles of plants; design, size and site selection; the construction of digesters; gas holders and pipes; household gas appliances and their use; starting and operating a biogas digester; servicing and safety; improving gas-plant performance; commercial uses of biogas; the effluent and its uses, biogas-plant development programmes; community plants; and economics. In the annexes, designs for biogas plants of the fixed-dome, bag and floating gas-holder type are presented. 9 references.

  5. Biogas Markets and Federal Policy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    americanbiogascouncil.org Promoting the Anaerobic Digestion and Biogas Industries 1 americanbiogascouncil.org Biogas Markets and Federal Policy Patrick Serfass, Executive Director www.americanbiogascouncil.org Promoting the Anaerobic Digestion and Biogas Industries www.americanbiogascouncil.org Promoting the Anaerobic Digestion and Biogas Industries American Biogas Council: The Voice of the US Biogas Industry  The only U.S. organization representing the biogas and anaerobic digestion industry

  6. GWE Biogas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogas Jump to: navigation, search Name: GWE Biogas Place: United Kingdom Product: UK-based biogas project developer. The firm is currently developing a waste-to-energy plant in...

  7. Energen Biogas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogas Place: United Kingdom Product: Scottish company developing anaerobic digestion plants. References: Energen Biogas1 This article is a stub. You can help OpenEI by...

  8. Biogas Production Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Production Technologies Ruihong Zhang, Professor Biological and Agricultural Engineering University of California, Davis Email: rhzhang@ucdavis.edu Biogas and Fuel Cell Workshop National Renewable Energy Laboratory June 12, 2012 Presentation Outline * Status of anaerobic digestion technologies and opportunities for further development * New UC Davis solid waste digestion technologies applied to commercial projects Anaerobic Digestion Biogas Digester Effluent (residual solids and water) Organic

  9. Electricity from biogas

    SciTech Connect

    Augenstein, D.; Benemann, J.; Hughes, E.

    1994-12-31

    Biogas is a medium-Btu methane and carbon dioxide mix produced by bacterial decomposition of organic matter. Its sources include landfills, waste water sludges, and animal wastes. It can fuel energy applications, of which electricity generation is a frequently-preferred option. The greatest current U.S. biogas recovery and energy use is at landfills, where biogas at about 80 landfill sites fuels a total of approximately 300 MWe. Wastewater treatment plants and confined animal waste management systems support additional electric power production. Generation of electricity from biogas can present difficulties due to the generally small scale of the generating facility, variable energy content of the gas, fluctuating availability, contaminant problems, and often-demanding control needs. However, such difficulties are being successfully addressed and economics for electricity generation are often favorable as biogas can be essentially {open_quotes}free{close_quotes} fuel. Biogas recovery and use has the additional advantage of mitigating a potent greenhouse gas. Biogas from U.S. landfills alone could fuel about 1% of U.S. electrical generation while giving climate change benefit equivalent to reducing CO{sub 2} emissions in the electricity sector by more than 10%. Growth in landfill gas use will be facilitated by recent regulations, advances in equipment, and improved management techniques such as {open_quotes}controlled landfilling{close_quotes}. The potential for biogas recovery and electricity production from sewage sludges, animal wastes and other organic resources such as agricultural residues is uncertain but probably exceeds the estimate for landfills.

  10. Biogas Technologies and Integration with Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    NREL BIOGAS WORKSHOP BIOGAS TECHNOLOGIES AND INTEGRATION WITH FUEL CELLS Ian Handley Ros Roca Envirotec USA American Biogas Council SUMMARY * Introduction and Background * Anaerobic Digestion * Biogas Utilization * Biogas Upgrading Technology * Biogas Specification * Biogas to Fuel Cell * Conclusions Promoting the use of Biogas and Anaerobic Digestion O 149 Members from the U.S., Germany, Italy, Canada and the UK O All Industry Sectors Represented Key Industry Goals: O Promote biogas markets,

  11. Biogas Direct LCC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LCC Jump to: navigation, search Name: Biogas Direct LCC Place: Spring Green, Wisconsin Zip: WI 53588 Product: Biogas Direct is specialized in constructing Biogas plants for the...

  12. American Biogas Council: The Voice of the U.S. Biogas Industry | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Biogas Council: The Voice of the U.S. Biogas Industry American Biogas Council: The Voice of the U.S. Biogas Industry Breakout Session 3-C: Renewable Gaseous Fuels American Biogas Council: The Voice of the U.S. Biogas Industry Patrick Serfass, Executive Director, American Biogas Council serfass_bioenergy_2015.pdf (903.93 KB) More Documents & Publications Biogas Markets and Federal Policy Biogas Opportunities Roadmap Biogas and Fuel Cells Workshop Summary Report: Proceedings from

  13. Rapid automatic keyword extraction for information retrieval and analysis

    DOEpatents

    Rose, Stuart J; Cowley,; Wendy E; Crow, Vernon L; Cramer, Nicholas O

    2012-03-06

    Methods and systems for rapid automatic keyword extraction for information retrieval and analysis. Embodiments can include parsing words in an individual document by delimiters, stop words, or both in order to identify candidate keywords. Word scores for each word within the candidate keywords are then calculated based on a function of co-occurrence degree, co-occurrence frequency, or both. Based on a function of the word scores for words within the candidate keyword, a keyword score is calculated for each of the candidate keywords. A portion of the candidate keywords are then extracted as keywords based, at least in part, on the candidate keywords having the highest keyword scores.

  14. Refeeding biogas digester solids

    SciTech Connect

    Licht, L.A.

    1981-01-01

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

  15. Biomass: Biogas Generator

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    BIOGAS GENERATOR Curriculum: Biomass Power (organic chemistry, chemical/carbon cycles, plants, energy resources/transformations) Grade Level: Middle School (6-8) Small groups (3 to 4) Time: 90 minutes to assemble, days to generate sufficient gas to burn Summary: Students build a simple digester to generate a quantity of gas to burn. This demonstrates the small amount of technology needed to generate a renewable energy source. Biogas has been used in the past and is still used today as an energy

  16. Chesterfield Biogas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogas Jump to: navigation, search Name: Chesterfield Biogas Place: United Kingdom Zip: S9 1BT Product: UK-based firm which provides turnkey solutions for the cleaning, storage and...

  17. Biogas: the Chinese experience

    SciTech Connect

    Thorhaug, A.

    1980-10-01

    This article details the history of biogas in China and its development as a renewable energy source. There are 7.2 million biogas plants that benefit directly 35 million rural people. The average family digester costs $20 to $40 and can easily be made by unskilled technical workers. The design of a typical digester is described together with its maintenance and recovery of gas. The uses of biogas in China are numerous and solves most of the major energy problems of rural life such as village cooking, and fuel for irrigation pumps and farm tractors. The utilizing of human, animal and agricultural waste is in itself a large benefit and a list of other benefits to the Chinese is given.

  18. Updated guidebook on biogas development

    SciTech Connect

    Not Available

    1985-01-01

    On the practical aspects of small-scale biogas development suitable for use in rural areas of developing countries reviews biogas development throughout the ESCAP region and examines each of the steps involved in developing and operating a biogas plant. It details both the process and the microbiology of biogas fermentation and analyses the factors affecting gas plant design and operation. Also covered are the classification and design principles of plants, design, site, and site selection; starting and operating a gas plant; servicing and safety; and efficient plant performance. Also considered are the commercial uses of biogas and possible use of effluent.

  19. American Biogas Council: The Voice of the US Biogas Industry

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Council: The Voice of the US Biogas Industry  The only U.S. organization representing the biogas and anaerobic digestion industry  Over 220 Organizations from the U.S., Germany, Italy, Canada, Sweden, Belgium and the UK  All Industry Sectors Represented:  project developers/owners  anaerobic digestion designers  equipment dealers  waste managers  waste water companies  farms  utilities  consultants and EPCs  financiers, accountants, lawyers and

  20. Zebec Biogas Limited | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Zebec Biogas Limited Jump to: navigation, search Name: Zebec Biogas Limited Place: Glasgow, Scotland, United Kingdom Zip: G12 9JD Product: Sotland-based biogas company. The firm is...

  1. Small-scale biogas applications

    SciTech Connect

    Not Available

    1981-08-01

    Guidance is given through the exercise of determining whether a biogas system is worthwhile for a farm owner. After a brief description of anaerobic digestion and characteristics and economics of biogas, basic features of anaerobic digesters are discussed. The use of biogas is discussed, starting with gas collection at the digester and ending with waste heat recovery in cogeneration systems. Direct heating with biogas is also covered briefly. The parts of a working biogas system are discussed. Three different case studies are reviewed. Directions are offered for collecting site data and a method for performing a preliminary economic analysis of a given operation. Firms and consultants with experience in the design and construction of biogas systems are listed. (LEW)

  2. Biogas Opportunities Roadmap | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Opportunities Roadmap Biogas Opportunities Roadmap Biogas is a proven source of energy used in the United States and around the world for decades. As such, biogas systems can and should be an integral part of America's energy strategy moving forward. The Biogas Opportunities Roadmap builds on progress made to date to identify voluntary actions that can be taken to reduce methane emissions through the use of biogas systems and outlines strategies to overcome barriers limiting further

  3. Biogas Technology Group Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Group Ltd Jump to: navigation, search Name: Biogas Technology Group Ltd. Place: England, United Kingdom Zip: PE28 5SB Product: UK based, Biogas Technology, provides infrastructure...

  4. German Biogas Association | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Association Jump to: navigation, search Name: German Biogas Association Place: Freising, Germany Zip: 85356 Product: The Association represents the interests of biogas plant...

  5. Biogas Opportunities Roadmap Progress Report (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    Biogas Opportunities Roadmap Progress Report Citation Details In-Document Search Title: Biogas Opportunities Roadmap Progress Report In support of the Obama Administration's ...

  6. Biogas Opportunities Roadmap Progress Report Infographic

    Energy.gov [DOE] (indexed site)

    Protection Agency (EPA), created the Biogas Opportunities Roadmap as a response to ... partners have formed an Interagency Working Group to help expand the biogas industry. ...

  7. Archea Biogas N V | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogas N V Jump to: navigation, search Name: Archea Biogas N.V. Place: Hessisch Oldendorf, Lower Saxony, Germany Zip: 31840 Product: Design, analysis, planning and construction of...

  8. Biogas Opportunities Roadmap Progress Report

    SciTech Connect

    None, None

    2015-12-01

    In support of the Obama Administration's Climate Action Plan, the U.S. Department of Energy, the U.S. Environmental Protection Agency, and U.S. Department of Agriculture jointly released the Biogas Opportunities Roadmap Progress Report, updating the federal government's progress to reduce methane emissions through biogas systems since the Biogas Opportunities Roadmap was completed by the three agencies in July 2014. The report highlights actions taken, outlines challenges and opportunities, and identifies next steps to the growth of a robust biogas industry.

  9. Biogas Opportunities Roadmap Progress Report Infographic | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Biogas Opportunities Roadmap Progress Report Infographic Biogas Opportunities Roadmap Progress Report Infographic biogas_opportunites_roadmap_progress_report_infographic.pdf (707.86 KB) More Documents & Publications Biogas Opportunities Roadmap Progress Report Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 Biogas Opportunities Roadmap

  10. Biogas Opportunities Roadmap Progress Report | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Opportunities Roadmap Progress Report Biogas Opportunities Roadmap Progress Report biogas_opportunites_roadmap_progress_report.pdf (1.14 MB) biogas_opportunites_roadmap_progress_report_infographic.pdf (707.86 KB) More Documents & Publications Biogas Opportunities Roadmap Progress Report Infographic Biogas Opportunities Roadmap Biogas Markets and Federal Policy

  11. Shell structures for biogas plants

    SciTech Connect

    Sasse, L.

    1982-01-01

    The shell structures designed for biogas plants of the fixed-dome type by the Bremen Overseas Research and Development Association are described. Biogas digesters of the design described have been successfully tested in Rwanda and India without structural or contractural problems.

  12. Biogas Opportunities Roadmap 8-1-14

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Opportunities Roadmap Voluntary Actions to Reduce Methane Emissions and Increase Energy Independence U.S. Department of Agriculture, U.S. Environmental Protection Agency, U.S. Department of Energy August 2014 1 Biogas Opportunities Roadmap Table of Contents Executive Summary . ............................................................................................................. 4 I. Biogas and Biogas Systems

  13. Biogas Nord GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name: Biogas Nord GmbH Place: Bielefeld, North Rhine-Westphalia, Germany Zip: 33719 Product: Biogas Nord is a specialized engineering company for biogas...

  14. Hydrogen and Biogas Production using Microbial Electrolysis Cells...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hydrogen and Biogas Production using Microbial Electrolysis Cells Hydrogen and Biogas Production using Microbial Electrolysis Cells Breakout Session 2-C: Biogas and Beyond: ...

  15. Tulalip Tribe - Biogas Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Bio-Gas Project Daryl Williams November 18, 2008 Introduction Background Description of Project Partnership Feasibility Study/Business Plan Creation of Quil Ceda Power Funding Creation of Qualco Energy Closing Background Land-Use Changes from Agriculture to Other Types of Development Skykomish River WQ Problems Bacteria Nutrient Loading Relationship Between Tribes and Dairies Poor Economy for Dairy Operations Project Description Sewage Treatment for

  16. Biogas Production Technologies | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Production Technologies Biogas Production Technologies Presentation about UC Davis's biogas technologies and integration with fuel cells. Presented by Ruihong Zhang, UC Davis, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_zhang.pdf (4.19 MB) More Documents & Publications Biogas Markets and Federal Policy Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Project Reports for

  17. National Library of Energy : Main View : Search Results for Keyword...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Search: Keyword: microelectromechanical OR mems OR mem Did you mean ? Create new alert from this search New Search My Selections (0) Alerts Source Status Activity Indicator 0 top...

  18. Hese Biogas GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Hese Biogas GmbH Place: Gelsenkirchen, North Rhine-Westphalia, Germany Zip: 45881 Product: Hese Biogas is a biogas plant manufacturer and a subsidiary of Schmack Biogas AG....

  19. Biogas Opportunities Roadmap Fact Sheet

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Opportunities Roadmap: Voluntary Actions to Reduce Methane Emissions, Increase Energy Independence and Grow the Economy President Obama's Climate Action Plan In his Climate Action Plan, released in June 2013, President Obama directed the Administration to develop a comprehensive, interagency strategy to reduce methane emissions and promote cutting-edge technologies that help farmers, energy companies, and communities convert methane into a renewable energy source and grow America's biogas

  20. Introduction to biogas production on the farm

    SciTech Connect

    Not Available

    1984-03-01

    A number of farmers, ranchers, and engineers received support from the US Department of Energy Appropriate Technology Small Grants Program to design, construct, and demonstrate biogas production systems. Many of these projects generated more than just biogas; grantees' work and results have contributed to a growing body of information about practical applications of this technology. This publication was developed to share some of that information, to answer the basic questions about biogas production, and to lead farmers to more information. Section I introduces biogas and the various components of a biogas production system, discusses the system's benefits and liabilities, and provides a brief checklist to determine if biogas production may be applicable to an individual's particular situation. Section II features descriptions of four biogas projects of various sizes. Section III provides sources of additional information including descriptions of other biogas production projects.

  1. Biogas Energia Ambiental SA | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Ambiental SA Jump to: navigation, search Name: Biogas Energia Ambiental SA Place: Sao Paulo, Sao Paulo, Brazil Zip: 04561-004 Product: Sao Paulo-based landfill biogas-to-energy...

  2. Air Liquide - Biogas & Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Liquide - Biogas & Fuel Cells ■ Hydrogen Energy ■ Biogas Upgrading Technology 12 June 2012 Charlie.Anderson@airliquide.com 2 Air Liquide, world leader in gases for industry, health and the environment Renewable H 2 to Fuel Cell, Integrated Concept Purified Biogas 3 Air Liquide, world leader in gases for industry, health and the environment Renewable H 2 to Fuel Cell, Non-Integrated Concept Landfill WWTP digester Biogas membrane Pipeline quality methane CH4 Pipeline Hydrogen Production To

  3. Janata biogas technology and fodder production

    SciTech Connect

    Neelakantan, S.

    1981-01-01

    An effective bio-gas program leads to efficient use of cow dung for gas recovery and partial supplement to plant nutrient requirements. Bio-gas program leads to improvement in rural living including rural sanitation. The Janata biogas plant designed by the State Planning Institute, Lucknow, based on biogas technology, has proved to be efficient and economical. This book contains the various papers presented at the seminar held to review this technology. The various topics covered are: Status of Biogas Program in India; Role of Extension Agencies in Developing Program of Energy Utilization; Introduction to Drumless Biogas Plant; Principles and Application of Anaerobic Fermentation and Biogas Production, Operational System of Gobar Gas in Rural India; Complete Recycling of Cattle Shed Wastes through Biogas Plant; Chemical Composition of Cattle Excreta and Its Manurial Value; Profitability of Biogas Plant; Biogas Production from Various Organic Wastes; Performance of Janata Biogas Plant and Biogas Utilization in Appliances; Utilization of Solar Energy for Domestic Purposes; and Conservation of Forages. Plant requirements and cost estimates have been given for several units.

  4. Air Liquide - Biogas & Fuel Cells | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Air Liquide - Biogas & Fuel Cells Air Liquide - Biogas & Fuel Cells Presentation about Air Liquide's biogas technologies and integration with fuel cells. Presented by Charlie Anderson, Air Liquide, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_anderson.pdf (1.22 MB) More Documents & Publications Biogas Technologies and Integration with Fuel Cells Biogas and Fuel Cells Workshop Summary Report: Proceedings from the

  5. Biogas Markets and Federal Policy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Markets and Federal Policy Biogas Markets and Federal Policy National policy and legislative outlook for biogas and fuel cells. Presented by Patrick Serfass, American Biogas Council, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_serfass.pdf (3.79 MB) More Documents & Publications Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 State

  6. Biogas project advances in California

    SciTech Connect

    Wittrup, L.

    1995-04-01

    The National Renewable Energy Laboratory (NREL) has given a `thumbs up` rating to the high solids anaerobic digester project which is designed to produce biogas. The Sacramento Municipal Utility District (SMUD), the local utility, is considering the use of biogas to run a fuel cell pilot project. The designs for the three digesters are state-of-the-art, with each containing a horizontal trough measuring 120 feet long, 32 feet wide and 22 feet tall. NREL was asked by the PIA to review the mixing method in the digesters and analyze the overall potential success of the operation. The design employs a redundant system for foam removal from the digester gas, and has provisions to remove moisture from the biogas. However, there are no systems specified to reduce hydrogen sulfide levels. Since hydrogen sulfide is known to be corrosive, it may be destructive to the ultimate use as biogas in fuel cells. A suggested remedy from NREL is to add redundant iron sponge systems to remove hydrogen sulfide gases. A redundant system would allow regenerating one while the other is in service. In general, the lab found the design offers low construction costs, relative ease of operation, and a reasonably high level of anticipated success in operation. Therefore, NREL recommends proceeding with the current digester design plans, once the modifications as indicated are made.

  7. S R Biogas Energiesysteme AG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Energiesysteme AG Jump to: navigation, search Name: S&R Biogas Energiesysteme AG Place: Frankfurt am Main, Hessen, Germany Zip: 60598 Product: S&R Biogas Energiesysteme is a biogas...

  8. Envio Biogas GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Envio Biogas GmbH Jump to: navigation, search Name: Envio Biogas GmbH Place: Dortmund, North Rhine-Westphalia, Germany Zip: 44147 Product: North Rhine-Westphalia based biogas...

  9. Renion Biogas GmbH Co KG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Renion Biogas GmbH Co KG Jump to: navigation, search Name: Renion Biogas GmbH & Co KG Place: Regensburg, Bavaria, Germany Zip: 93055 Product: JV between Schmack Biogas and Rewag to...

  10. Bio Energy Biogas GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogas GmbH Jump to: navigation, search Name: Bio Energy Biogas GmbH Place: Bad Oeynhausen, North Rhine-Westphalia, Germany Zip: 32545 Product: Bio Energy Biogas provides the whole...

  11. Biogas Technologies and Integration with Fuel Cells | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technologies and Integration with Fuel Cells Biogas Technologies and Integration with Fuel Cells Presentation about Ros Roca Envirotec's biogas technologies and integration with fuel cells. Presented by Ian Handley, Ros Roca Envirotec, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_handley.pdf (2.9 MB) More Documents & Publications Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells

  12. Biogas Opportunities Roadmap Progress Report Infographic

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    United States Department of Agriculture (USDA), Department of Energy (DOE), and Environmental Protection Agency (EPA), created the Biogas Opportunities Roadmap as a response to the White House Climate Action Plan's directive to develop an interagency strategy to reduce methane emissions. Together, the Agencies along with industry partners have formed an Interagency Working Group to help expand the biogas industry. Strategically deployed biogas systems o er the nation a cost-e ective and

  13. Biogas and Fuel Cells Workshop Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    AND FUEL CELLS WORKSHOP AGENDA National Renewable Energy Laboratory Research Support Facility, Beaver Creek Conference Room Golden, Colorado June 11-13, 2012 WORKSHOP OBJECTIVES: * Discuss current state-of-the art for biogas and waste-to-energy technologies for fuel cell applications. * Identify key challenges (both technical and non-technical) preventing or delaying the widespread near term deployment of biogas fuel cells projects. * Identify synergies and opportunities for biogas and fuel cell

  14. Alternative Fuels Data Center: Landfills Convert Biogas Into...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Landfills Convert Biogas Into Renewable Natural Gas to someone by E-mail Share Alternative Fuels Data Center: Landfills Convert Biogas Into Renewable Natural Gas on Facebook Tweet ...

  15. Biogas, Solar, and Wind Energy Equipment Exemption | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas, Solar, and Wind Energy Equipment Exemption Biogas, Solar, and Wind Energy Equipment Exemption < Back Eligibility Commercial Industrial Residential Agricultural Multifamily...

  16. Biogas and Fuel Cells Workshop Summary Report: Proceedings from...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 Biogas and Fuel Cells Workshop Summary Report: Proceedings ...

  17. EnviTec Biogas AG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    EnviTec Biogas AG Place: Saerbeck, North Rhine-Westphalia, Germany Zip: 48369 Product: Plans, finances, installs and commissions biogas systems including technical and biological...

  18. EnviTec Biogas India Private Limited | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Private Limited Jump to: navigation, search Name: EnviTec Biogas India Private Limited Place: India Product: Manufacturer of anaerobic digesters. References: EnviTec Biogas India...

  19. Natural Gas Quality Biogas | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Natural Gas Quality Biogas Transportation fuel and organic solid fertilizer from anaerobic digestion of wastewater solids and other organic wastes Organic solid fertilizer is rich...

  20. Swine lagoon biogas utilization system

    SciTech Connect

    Gettier, S.W.; Roberts, M.

    1994-12-31

    A project was conceived to design and build a system to recover methane from pig manure with covered anaerobic lagoon technology. Covered lagoon technology lends itself both to new lagoon construction and to retrofit designs on existing anaerobic lagoons. A two cell passive in-ground digester/lagoon system was designed for a 600 sow feeder pig farm. The digester was covered with a flexible fabric cover made of 30 mil XR-5. The biogas has 1,100 ppm hydrogen sulfide. For the first month of operation 473 cubic feet of biogas per hour has been recovered from the digester 24 hours per day. At this gas flow the engine turns an induction generator to produce 17.1 KW per hour. A little over 80% of the farm`s electrical needs are generated with methane from swine manure. On an annual basis there will be 150,000 KWh of electricity produced from 4.3 million cubic feet of biogas.

  1. Development of biogas technology in India

    SciTech Connect

    Chiranjivi, C.; Raviprasad, A.; Rao, K.V.

    1981-01-01

    Biogas from organic wastes is a potential renewable energy to meet the domestic energy needs in India. The fundamentals of bio-gasification by anaerobic digestion are presented. The production of biogas from cattle manure in small anaerobic digesters is discussed illustrating with a popular digester model. 9 refs.

  2. Liquid membrane purification of biogas

    SciTech Connect

    Majumdar, S.; Guha, A.K.; Lee, Y.T.; Papadopoulos, T.; Khare, S. . Dept. of Chemistry and Chemical Engineering)

    1991-03-01

    Conventional gas purification technologies are highly energy intensive. They are not suitable for economic removal of CO{sub 2} from methane obtained in biogas due to the small scale of gas production. Membrane separation techniques on the other hand are ideally suited for low gas production rate applications due to their modular nature. Although liquid membranes possess a high species permeability and selectivity, they have not been used for industrial applications due to the problems of membrane stability, membrane flooding and poor operational flexibility, etc. A new hollow-fiber-contained liquid membrane (HFCLM) technique has been developed recently. This technique overcomes the shortcomings of the traditional immobilized liquid membrane technology. A new technique uses two sets of hydrophobic, microporous hollow fine fibers, packed tightly in a permeator shell. The inter-fiber space is filled with an aqueous liquid acting as the membrane. The feed gas mixture is separated by selective permeation of a species through the liquid from one fiber set to the other. The second fiber set carries a sweep stream, gas or liquid, or simply the permeated gas stream. The objectives (which were met) of the present investigation were as follows. To study the selective removal of CO{sub 2} from a model biogas mixture containing 40% CO{sub 2} (the rest being N{sub 2} or CH{sub 4}) using a HFCLM permeator under various operating modes that include sweep gas, sweep liquid, vacuum and conventional permeation; to develop a mathematical model for each mode of operation; to build a large-scale purification loop and large-scale permeators for model biogas separation and to show stable performance over a period of one month.

  3. Biogas and Fuel Cells Workshop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas and Fuel Cells Workshop Biogas and Fuel Cells Workshop The U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) held a Biogas and Fuel Cells Workshop June 11-13, 2012, in Golden, Colorado, to discuss biogas and waste-to-energy technologies for fuel cell applications. Workshop objectives were to discuss the state-of-the-art of the technologies; identify challenges preventing or delaying widespread deployment of biogas fuel cell projects and opportunities to

  4. Biogas and Fuel Cells Workshop Agenda | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Agenda Biogas and Fuel Cells Workshop Agenda Agenda for the Biogas and Fuel Cells Workshop held June 11-13, 2012, at the National Renewable Energy Laboratory in Golden, Colorado. june2012_biogas_workshop_agenda.pdf (148.26 KB) More Documents & Publications Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 Hydrogen Infrastructure Market Readiness Workshop Agenda EERE Quality Control Workshop Agenda

  5. Passive solar technology aids biogas digesters

    SciTech Connect

    Not Available

    1988-07-01

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

  6. Sludge storage lagoon biogas recovery and use

    SciTech Connect

    Muller, D.; Norville, C. )

    1991-07-01

    The City of Memphis has two wastewater treatment plants. The SWTP employs two large anaerobic digestion sludge lagoons as part of the overall sludge treatment system. Although these lagoons are effective in concentrating and digesting sludge, they can generate offensive odors. The SWTP uses aerobic digesters to partially stabilize the sludge and help reduce objectionable odors before it enters the lagoons. The anaerobic digestion of sludge in the lagoons results in the dispersion of a large quantity of biogas into the atmosphere. The City realized that if the lagoons could be covered, the odor problem could be resolved, and at the same, time, biogas could be recovered and utilized as a source of energy. In 1987, the City commissioned ADI International to conduct a feasibility study to evaluate alternative methods of covering the lagoons and recovering and utilizing the biogas. The study recommended that the project be developed in two phases: (1) recovery of the biogas and (2) utilization of the biogas. Phase 1 consists of covering the two lagoons with an insulated membrane to control odor and temperature and collect the biogas. Phase 1 was found to be economically feasible and offered a unique opportunity for the City to save substantial operating costs at the treatment facility. The Memphis biogas recovery project is the only application in the world where a membrane cover has been used on a municipal wastewater sludge lagoon. It is also the largest lagoon cover system in the world.

  7. Biogas, compost and fuel cells

    SciTech Connect

    Wichert, B.; Wittrup, L.; Robel, R.

    1994-08-01

    A pilot project now under development in Folsom, California, incorporates an anaerobic digestion/aerobic composting process that could eventually supply enough biogas to a fuel cell. The Sacramento Municipal Utility District (SMUD) has two fuel cells in operation and is participating in the research project. Recently, the California Prison Industry Authority (PIA) began operating a processing facility at the Folsom prison, designed for 100 tons/day of mixed waste from the City of Folsom. The 35,000 square foot Correctional Resource Recovery Facility (CRRF) uses minimum security inmates from Folsom`s Return to Custody Facility to manually separate recyclables and compostable materials from the waste stream. The PIA will be using a new technology, high solids anaerobic digestion, to compost the organic fraction (representing approximately 60 to 70 percent of the waste stream). Construction began in June on a 40-foot wide by 120-foot long and 22-foot deep anaerobic digester. Once the vessel is operational in 1995, the composting process and the gradual breakdown of organic material will produce biogas, which SMUD hopes to use to power an adjacent two megawatt fuel cell. The electricity generated will serve SMUD customers, including the waste facility and nearby correctional institutions. 1 fig.

  8. Performance of biogas plants of different designs

    SciTech Connect

    Not Available

    1981-08-01

    The performance of different designs of biogas digesters were evaluated at four Khadi and Village Industries Commission (KVIC) regional centres in: Vijapadi in Gujarat, Nasik in Maharashtra, Srinagar in Jammu and Kashmir, and Allahabad in Uttar Pradesh, India. The information provided in the evaluation includes the average daily gas production per unit of digester volume for each month, the total gas produced per unit of digester volume over an 18-month period, the costs of the KVIC-designed biogas digesters of different volume and the expenditures incurred in installing biogas digesters of different design.

  9. Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 | Department of Energy and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 The U.S. Department of Energy (DOE) National Renewable Energy Laboratory (NREL) held a Biogas and Fuel Cells Workshop June 11-13, 2012, in Golden,

  10. White Earth Biomass/Biogas Feasibility Study

    SciTech Connect

    Triplett, Michael

    2015-03-12

    The White Earth Nation examined the feasibility of cost savings and fossil energy reduction through the installation of biogas/biomass boiler at the tribal casino. The study rejected biogas options due to availability and site constraints, but found a favorable environment for technical and financial feasibility of installing a 5 MMBtu hot water boiler system to offset 60-70 percent of current fuel oil and propane usage.

  11. Expanding the Use of Biogas with Fuel Cell Technologies

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE perspective on expanding the use of biogas with fuel cell technologies. Presented by Sunita Satyapal, DOE Fuel Cell Technologies Program, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

  12. Biogas and Fuel Cells Workshop Summary Report: Proceedings from...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas and Fuel Cells Workshop Summary Report Proceedings from the Biogas and Fuel Cells Workshop Golden, Colorado June 11-13, 2012 Workshop Proceedings NRELBK-5600-56523 January ...

  13. Hydrogen and Biogas Production using Microbial Electrolysis Cells |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Hydrogen and Biogas Production using Microbial Electrolysis Cells Hydrogen and Biogas Production using Microbial Electrolysis Cells Breakout Session 2-C: Biogas and Beyond: Challenges and Opportunities for Advanced Biofuels from Wet-Waste Feedstocks Hydrogen and Biogas Production using Microbial Electrolysis Cells Bruce Logan, Kappe Professor of Environmental Engineering and Evan Pugh Professor, Pennsylvania State University logan_bioenergy_2015.pdf (2.98 MB) More

  14. New Biogas Opportunities Roadmap is Part of Climate Change Solution |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Biogas Opportunities Roadmap is Part of Climate Change Solution New Biogas Opportunities Roadmap is Part of Climate Change Solution August 1, 2014 - 11:39am Addthis Biogas -- a byproduct of anaerobic digestion or fermentation of materials like sewage, municipal waste, crops and manure -- currently provides enough renewable energy to power the equivalent of almost 70,000 average American homes. | Energy Department file photo. Biogas -- a byproduct of anaerobic digestion

  15. Biogas Impurities and Cleanup for Fuel Cells | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Impurities and Cleanup for Fuel Cells Biogas Impurities and Cleanup for Fuel Cells Presentation about biogas technologies and integration with fuel cells. Presented by Shabbir Ahmed, Argonne National Laboratory, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_ahmed.pdf (936.39 KB) More Documents & Publications Workshop on Gas Clean-Up for Fuel Cell Applications Fuel Quality Issues in Stationary Fuel Cell Systems

  16. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    MATERIAL* J. A. Van Den Avyle, Mechanical Metallurgy Division H. J. Sutherland, Wind Energy Research Division Sandia National Laboratories Albuquerque, New Mexico ABSTRACT The...

  17. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Mechanical El Stanford University Stanford, CA 94305 K. Bergey University of Oklahoma Aero Engineering Department Norman, OK 73069 Ir. Jos Beurskens Programme Manager for...

  18. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Laboratories Albuquerque, NM 87185 ABSTRACT The LIFE2 computer code is a fatiguefracture analysis code that is specialized to the analysis of wind turbine components. The...

  19. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    joints as shown in Figure 2, a schematic of the blade shape geometry. Because of the multi-sectioned, step- tapered characteristics of the Test Bed blades, the normally-used...

  20. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... loss, just as trans- mitting watts does, and creates voltage drop.) The important considerations when discussing var con- sumption are the cost, transmission, regulation impacts. ...

  1. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... and otherwise) for this document. . iv Preface This document is intended to promote the knowledge and appropriate use of solar photovoltaic technology for development applications. ...

  2. UNKNOWN

    Office of Legacy Management (LM)

    DEPARTMENT O F ENERGY'S AMCHITKA ISLAND NUCLEAR TEST SlTE Joanna Burger',', Henry J. ... contamination is from underground nuclear test shot cavities containing large ...

  3. UNKNOWN

    Office of Legacy Management (LM)

    Energy; Arnchitka, Alaska; Under- ground nuclear testing; Conflict resolution; Consen- ... no longer needed for nuclear material production or related national security mis- sions. ...

  4. UNKNOWN

    Office of Legacy Management (LM)

    radionuclides from the underground nuclear test sites at Amchitka Island, Alaska, ... May Z O O 0 Abstract Three underground nuclear tests representing approximately 15-16% ...

  5. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    we study a D-spar composite structure, which is part of the airfoil shape. The basic dimension of the D-spar is 6' (long), 6" (wide) and 3" (height) as shown in Figure 2...

  6. Unknown

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... PV power is produced directly by sun- light shining on an array of PV modules, ... A thin, silicon cell, 10 cm across, can produce more than 1 watt (W) of dc electrical ...

  7. Biogas electricity -- The Pura village case study

    SciTech Connect

    Rajabapaiah, P.; Jayakumar, S.; Reddy, A.K.N.

    1993-12-31

    A potentially useful decentralized source of energy is biogas, which is an approximately 60:40 mixture of methane (CH{sub 4}) and carbon dioxide (CO{sub 2}), produced by the anaerobic fermentation of cellulosic biomass materials such as bovine wastes. Since 1987, the traditional system of obtaining water, illumination, and fertilizer in Pura village in south India has been replaced with a community biogas plant electricity-generation system. The technical, managerial, and economical aspects of this system are the subject manner of the present paper. Various subsystems are described, and the problems of operation and maintenance under field conditions are also discussed. A comparison of Pura`s present community biogas system with its traditional means for obtaining water, illumination, and fertilizer shows that the households are winners on all counts, having obtained such benefits as improved hygiene and convenience at relatively low cost. The Pura community biogas plant is held together and sustained by the convergence of individual and collective interests. Noncooperation with the community biogas plant results in a heavy individual price (access to water and light being cut off by the village), which is too great a personal loss to compensate for the minor advantages of noncooperation and noncontribution to collective interests.

  8. Ultrasound assisted biogas production from landfill leachate

    SciTech Connect

    Oz, Nilgün Ayman Yarimtepe, Canan Can

    2014-07-15

    Highlights: • Effect of low frequency ultrasound pretreatment on leachate was investigated. • Three different ultrasound energy inputs (200, 400 and 600 W/l) was applied. • Low-frequency ultrasound treatment increased soluble COD in landfill leachate. • Application of ultrasound to leachate increased biogas production about 40%. • Application of ultrasound to leachate increased total methane production rate about 20%. - Abstract: The aim of this study is to increase biogas production and methane yield from landfill leachate in anaerobic batch reactors by using low frequency ultrasound as a pretreatment step. In the first part of the study, optimum conditions for solubilization of organic matter in leachate samples were investigated using various sonication durations at an ultrasound frequency of 20 kHz. The level of organic matter solubilization during ultrasonic pretreatment experiments was determined by calculating the ratio of soluble chemical oxygen demand (sCOD) to total chemical oxygen demand (tCOD). The sCOD/tCOD ratio was increased from 47% in raw leachate to 63% after 45 min sonication at 600 W/l. Non-parametric Friedman’s test indicated that ultrasonic pretreatment has a significant effect on sCOD parameter for leachate (p < 0.05). In the second part of the study, anaerobic batch reactors were operated for both ultrasonically pretreated and untreated landfill leachate samples in order to assess the effect of sonication on biogas and methane production rate. In anaerobic batch reactor feed with ultrasonically pretreated leachate, 40% more biogas was obtained compared to the control reactor. For statistical analysis, Mann–Whitney U test was performed to compare biogas and methane production rates for raw and pretreated leachate samples and it has been found that ultrasonic pretreatment significantly enhanced biogas and methane production rates from leachate (p < 0.05) in anaerobic batch reactors. The overall results showed that low frequency

  9. Renewable Hydrogen Potential from Biogas in the United States

    SciTech Connect

    Saur, G.; Milbrandt, A.

    2014-07-01

    This analysis updates and expands upon previous biogas studies to include total potential and net availability of methane in raw biogas with respect to competing demands and includes a resource assessment of four sources of biogas: (1) wastewater treatment plants, including domestic and a new assessment of industrial sources; (2) landfills; (3) animal manure; and (4) a new assessment of industrial, institutional, and commercial sources. The results of the biogas resource assessment are used to estimate the potential production of renewable hydrogen from biogas as well as the fuel cell electric vehicles that the produced hydrogen might support.

  10. Biogas Impurities and Cleanup for Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Impurities and Cleanup for Fuel Cells Dennis Papadias and Shabbir Ahmed Argonne National Laboratory Presented at the Biogas and Fuel Cells Workshop Golden, CO June 11-13, 2012 Biogas is the product of anaerobic decomposition of organic waste Municipal solid wastes (MSW)  For every 1 million tons of MSW: - 432,000 cubic feet per day of landfill gas (LFG) for a period of 20 years - 1 MW of electricity 1 Sewage sludge/waste water (WWTP or ADG)  A typical WWTP processes 100 gallons per day

  11. Fuel Cells on Bio-Gas (Presentation)

    SciTech Connect

    Remick, R. J.

    2009-03-04

    The conclusions of this presentation are: (1) Fuel cells operating on bio-gas offer a pathway to renewable electricity generation; (2) With federal incentives of $3,500/kW or 30% of the project costs, reasonable payback periods of less than five years can be achieved; (3) Tri-generation of electricity, heat, and hydrogen offers an alternative route to solving the H{sub 2} infrastructure problem facing fuel cell vehicle deployment; and (4) DOE will be promoting bio-gas fuel cells in the future under its Market Transformation Programs.

  12. Process for electric power production using a biogas

    SciTech Connect

    Archer, D.H.; Bauer, F.I.; Vidt, E.J.

    1987-01-27

    A process is described for the production of electric power with a biogas used as a fuel for an electric power producing combustion turbine which drives a generator. The turbine will accept such a biogas only at a temperature below a predetermined temperature, wherein a biomass is gasified to produce a hot stream of a biogas. The biogas is at temperatures of between about 650/sup 0/-875/sup 0/C and contains vaporized tar components and solid particulate matter. It is characterized in that: the hot stream of biogas, consisting essentially of a biogas, vaporized tars and solid particulate matter, has water injected thereto partially cool the biogas to a temperature below the predetermined temperature by vaporization of the water. However, the biogas is above a temperature at which the vaporized tars in the biogas would condense out of the stream; filtering the partially cooled biogas to remove the particulate matter; and directly charging the partially cooled, filtered biogas containing the vaporized water and vaporized tars to an electric power producing combustion turbine to produce electric power.

  13. State Level Incentives for Biogas-Fuel Cell Projects

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    LEVEL INCENTIVES FOR BIOGAS-FUEL CELL PROJECTS Norma McDonald Vice Chair, American Biogas Council North American Sales Manager, Organic Waste Systems, Inc. www.americanbiogascouncil.org FIGURES * FOUNDED IN 1988 * SALES: $25-35 MILLION * 75 EMPLOYEES ACTIVITIES * BIOGAS CONSULTANCY & SUPPORT * BIODEGRADATION TESTING AND WASTE MANAGEMENT CONSULTANCY * DESIGN & CONSTRUCTION OF ANAEROBIC DIGESTION PLANTS FOR ORGANIC WASTE AND RESIDUALS * NO FORMAL STATE CHAPTERS - YET * MEMBER DRIVEN

  14. Biogas Potential in the United States (Fact Sheet)

    SciTech Connect

    Not Available

    2013-10-01

    Biogas has received increased attention as an alternative energy source in the United States. The factsheet provides information about the biogas (methane) potential from various sources in the country (by county and state) and estimates the power generation and transportation fuels production (renewable natural gas) potential from these biogas sources. It provides valuable information to the industry, academia and policy makers in support of their future decisions.

  15. Biogas Upgrading and Waste-to-Energy | Bioenergy | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Analysis Biogas Potential in the United States Biogas is the gaseous product of anaerobic digestion, a biological process in which microorganisms break down biodegradable material in the absence of oxygen. Biogas is comprised primarily of methane (50%-70%) and carbon dioxide (30%-50%), with trace amounts of other particulates and contaminants. It can be produced from various waste sources, including landfll material; animal manure; wastewater; and industrial, institutional, and commercial

  16. BioGas Energy Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Area Sector: Biomass Product: Makes anaerobic digesters that convert manure into methane for fuel Website: www.biogas-energy.comsiteind Coordinates: 47.6163159,...

  17. A technoeconomic assessment of solar-assisted biogas systems

    SciTech Connect

    Bansal, N.K. )

    1988-01-01

    Biogas has been recognized as one of the best available renewable and decentralized sources of energy and organic fertilizer for a country like India. There is enough evidence to prove that temperature has a profound influence on the rate of biogas production. In temperate climates, where the winters are mild, solar energy systems can be effectively used to increase the temperature of the biogas digester to the desired level. This paper examines various techniques, such as a solar greenhouse on the biogas digester, a shallow solar pond water heater, insulation, and a heat exchanger, and their technoeconomic viability.

  18. Biogas as a source of rural energy

    SciTech Connect

    Kalia, A.K.

    2000-01-01

    The hilly state of Himachal Pradesh, with nearly 2.15 million cattle and 0.7 million buffalo, has the potential to install 0.64 million biogas plants of 1 m{sup 3} size. These plants could generate nearly 4.90 x 105 m{sup 3} of biogas, equivalent to 3.07 x 10{sup 5} L kerosene per day to meet domestic energy needs of nearly one-fourth of its rural population. During 1982--1998, only 12.8% of this potential was achieved. The percent of possible potential achieved in plant installations in 12 districts of this state, namely, Bilaspur, Chamba, Hamirpur, Kangra, Kinnaur, Kullu, Lahul-Spiti, Mandi, Shimla, Sirmour, Solan, and Una, are 35.35, 1.70, 20.96, 8.67, 1.54, 6.96, 0.00, 18.49, 3.84, 8.521, 18.29, and 13.23%, respectively. There is a need to strengthen biogas promotion, particularly in the districts of Kangra, Mandi, Solan, and Una, which range from mid-hill to low-hill terrain and which have large potential due to high concentration of bovine population. Increased costs and comparatively low rate of subsidies has resulted in a decreasing rate of plant installation annually, from 3,500 during 1987--1992 to fewer than 1,200 during 1995--1998. The percentage of functioning plants was 82% in 1987--1988 but has decreased to 63%. To ensure proper installation and functionality of plants, the authors discuss the needed improvements in the biogas promotion program.

  19. Climate balance of biogas upgrading systems

    SciTech Connect

    Pertl, A.; Mostbauer, P.; Obersteiner, G.

    2010-01-15

    One of the numerous applications of renewable energy is represented by the use of upgraded biogas where needed by feeding into the gas grid. The aim of the present study was to identify an upgrading scenario featuring minimum overall GHG emissions. The study was based on a life-cycle approach taking into account also GHG emissions resulting from plant cultivation to the process of energy conversion. For anaerobic digestion two substrates have been taken into account: (1) agricultural resources and (2) municipal organic waste. The study provides results for four different upgrading technologies including the BABIU (Bottom Ash for Biogas Upgrading) method. As the transport of bottom ash is a critical factor implicated in the BABIU-method, different transport distances and means of conveyance (lorry, train) have been considered. Furthermore, aspects including biogas compression and energy conversion in a combined heat and power plant were assessed. GHG emissions from a conventional energy supply system (natural gas) have been estimated as reference scenario. The main findings obtained underlined how the overall reduction of GHG emissions may be rather limited, for example for an agricultural context in which PSA-scenarios emit only 10% less greenhouse gases than the reference scenario. The BABIU-method constitutes an efficient upgrading method capable of attaining a high reduction of GHG emission by sequestration of CO{sub 2}.

  20. Biogas Potential on Long Island, New York: A Quantification Study

    SciTech Connect

    Mahajan, D.; Patel, S.; Tonjes, D.

    2011-08-25

    Biogas is the product of anaerobic digestion of waste, whether occurring spontaneously in landfills or under controlled conditions in digesters. Biogas is viewed as an important energy source in current efforts to reduce the use of fossil fuels and dependency on imported resources. Several studies on the assessment of biogas potential have been made at regional, national, and global scales. However, because it is not economically feasible to transport biogas feedstock over long distances, it is more appropriate to consider local waste sources for their potential to produce biogas. An assessment of the biogas potential on Long Island, based on the review of local landfills, wastewater treatment plants, solid waste generation and management, and agricultural waste, found that 234 x 10{sup 6} m{sup 3} of methane (CH{sub 4}) from biogas might be harvestable, although substantial barriers for complete exploitation exist. This number is equivalent to 2.52 TW-h of electricity, approximately 12% of fossil fuel power generation on Long Island. This work can serve as a template for other areas to rapidly create or approximate biogas potentials, especially for suburban U.S. locations that are not usually thought of as sources of renewable energy.

  1. Technoeconomic Analysis of Biomethane Production from Biogas and Pipeline Delivery (Presentation)

    SciTech Connect

    Jalalzadeh-Azar, A.

    2010-10-18

    This presentation summarizes "A Technoeconomic Analysis of Biomethane Production from Biogas and Pipeline Delivery".

  2. Sludge storage lagoon biogas recovery and use. Volume 2

    SciTech Connect

    Muller, D.; Norville, C.

    1991-07-01

    The City of Memphis has two wastewater treatment plants. The SWTP employs two large anaerobic digestion sludge lagoons as part of the overall sludge treatment system. Although these lagoons are effective in concentrating and digesting sludge, they can generate offensive odors. The SWTP uses aerobic digesters to partially stabilize the sludge and help reduce objectionable odors before it enters the lagoons. The anaerobic digestion of sludge in the lagoons results in the dispersion of a large quantity of biogas into the atmosphere. The City realized that if the lagoons could be covered, the odor problem could be resolved, and at the same, time, biogas could be recovered and utilized as a source of energy. In 1987, the City commissioned ADI International to conduct a feasibility study to evaluate alternative methods of covering the lagoons and recovering and utilizing the biogas. The study recommended that the project be developed in two phases: (1) recovery of the biogas and (2) utilization of the biogas. Phase 1 consists of covering the two lagoons with an insulated membrane to control odor and temperature and collect the biogas. Phase 1 was found to be economically feasible and offered a unique opportunity for the City to save substantial operating costs at the treatment facility. The Memphis biogas recovery project is the only application in the world where a membrane cover has been used on a municipal wastewater sludge lagoon. It is also the largest lagoon cover system in the world.

  3. Biogas electric power generation: 25 kW or greater

    SciTech Connect

    Not Available

    1981-06-01

    A biogas cogeneration system consists basically of: an anaerobic digester to produce the gas, a prime mover which burns the gas and makes power, and recovery devices which capture engine waste heat. Guidance is given through the exercise of determining whether biogas cogeneration is worthwhile. Design, construction, and operation are covered in general. Theoretical and practical background on biogas cogeneration are given, and directions for collecting site data and a method for performing a preliminary economic analysis for a given operation are given. (LEW)

  4. US Energy Biogas Corp prev ZAPCO | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Corp prev ZAPCO Jump to: navigation, search Name: US Energy Biogas Corp (prev ZAPCO) Place: Connecticut Zip: 6001 Product: Owns and operates 26 landfill gas-to-energy (LFG)...

  5. The PC/Ecuador biogas program: considerations for future development

    SciTech Connect

    Warpeha, P.R.

    1980-06-28

    Biogas, the production of methane fuel and fertilizer through the process of controlled anaerobic decomposition, has been one of the most controversial of the new renewable energy technologies. The integrated approach to fuel and fertilizer production, conservation and sanitation on a decentralized community level potentially holds great promise as a truly appropriate technology for rural development. The report presents the research, development, and demonstration of biogas technology conducted by the Peace Corps in Ecuador for the past six years.

  6. SulfaTrap(tm): Novel Sorbent to Clean Biogas for Fuel Cell Combined...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    SulfaTrap(tm): Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power SulfaTrap(tm): Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power Improving ...

  7. Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and...

    Energy Saver

    Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power - Fact Sheet, 2015 Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power - Fact Sheet, 2015 TDA Research ...

  8. Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and...

    Office of Environmental Management (EM)

    both sulfur species in biogas to ppb levels, making its use possible in a fuel cell CHP unit The high concentrations of sulfur species in the biogas (up to 1.5% vol.) ...

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

    Energy.gov [DOE] (indexed site)

    the value proposition for biogas from waste water treatment plants. Presented by Steve Hamilton, SCS Energy, at the NRELDOE Biogas and Fuel Cells Workshop held June 11-13, 2012, ...

  10. B A S Biogas Anlagen Systeme GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    B A S Biogas Anlagen Systeme GmbH Jump to: navigation, search Name: B.A.S. Biogas Anlagen Systeme GmbH Place: Tellingstedt, Schleswig-Holstein, Germany Zip: 25782 Product: B.A.S....

  11. ABO Wind Biogas Sachsen Anhalt GmbH Co KG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogas Sachsen Anhalt GmbH Co KG Jump to: navigation, search Name: ABO Wind Biogas Sachsen-Anhalt GmbH & Co. KG Place: Wiesbaden, Saxony-Anhalt, Germany Zip: 65193 Product: Company...

  12. Continuous dry fermentation of swine manure for biogas production

    SciTech Connect

    Chen, Chuang; Zheng, Dan; Liu, Gang–Jin; Deng, Liang–Wei; Long, Yan; Fan, Zhan–Hui

    2015-04-15

    Highlights: • Continuous dry fermentation of swine manure for biogas production is feasible. • The feedstock TS concentration exerted a significant impact on biogas production. • Influences of ammonia and digestate liquidity were investigated in this study. • The results showed that the feedstock TS of swine manure should not exceed 30%. - Abstract: A down plug-flow anaerobic reactor (DPAR) was designed for the feasibility study on continuous dry fermentation of swine manure without any additional stirring. Using fresh swine manure as the feedstock with TS concentration (w/w) of 20%, 25%, 30%, and 35%, stable volumetric biogas production rates of 2.40, 1.92, 0.911, and 0.644 L·(L d){sup −1} and biogas yields of 0.665, 0.532, 0.252, and 0.178 L g{sup −1}VS were obtained respectively, and the TS degradation rates were 46.5%, 45.4%, 53.2%, and 55.6%, respectively. With the increase of feedstock TS concentration, the concentration of ammonia nitrogen grew up to the maximum value of 3500 mg L{sup −1}. Biogas production was obviously inhibited when the concentration of ammonia nitrogen was above 3000 mg L{sup −1}. The maximal volumetric biogas production rate of 2.34 L·(L d){sup −1} and biogas yield of 0.649 L g{sup −1}VS were obtained with TS concentration of 25% at 25 °C without inhibition. Liquidity experiments showed that TS concentration of digestate could be less than 15.8%, and the flow rate of digestate more than 0.98 m s{sup −1} when the feedstock TS concentration was less than 35%, which indicated the digestate could be easily discharged from a DPAR. Therefore, it is feasible to conduct a continuous dry fermentation in a DPAR using fresh swine manure as the feedstock with TS concentration less than 35%, whereas the feedstock TS concentration should not exceed 30% to achieve the maximal biogas production rate and biogas yield.

  13. Biogas end-use in the European community

    SciTech Connect

    Constant, M.; Naveau, H.; Nyns, E.J. ); Ferrero, G.L.

    1989-01-01

    In Europe over the past few years the generation of biogas for energy and environmental purposes has been gaining in importance. Industrial wastewaters, cattle manure, sewage sludges, urban wastes, crop residues, algae and aquatic biomass are all typical of the materials being utilized. In contrast to the extensive inventory of biomethanation processes which has been carried out within the EEC, until recently a detailed, up-to-date investigation of the end-sues of biogas had not been undertaken. To supply the necessary information, the Commission of the European Communities and the Belgian Science Policy Office jointly entrusted a study to the Unit of Bioengineering at the Catholic University of Louvain, Belgium. This book is record of the study and has the following key features: it gives a broad overview of the ongoing use of biogas in Europe; it summarizes available data on storage, purification and engines using biogas; it draws several conclusions concerning the technical and economic viability of the processes; it discusses the problems of using biogas; and it outlines recommendations and future R and D and demonstration projects in the field.

  14. Substrate inhibition and control for high rate biogas production

    SciTech Connect

    Shin, H.S.

    1982-01-01

    This research addresses a critical aspect of the technical feasibility of biogas recovery with poultry manure using anaerobic digestion, namely, inhibition and toxicity factors limiting methane generation under high rate conditions. The research was designed to identify the limiting factors and to examine alternative pretreatment and in situ control methods for the anaerobic digestion of poultry manure as an energy producing system. Biogas production was indicated by the daily gas volume produced per unit digester capacity. Enhanced biogas generation from the anaerobic digester systems using poultry manure was studied in laboratory- and pilot-scale digester operations. It was found that ammonia nitrogen concentration above 4000 mg/l was inhibitory to biogas production. Pretreatment of the manure by elutriation was effective for decreasing inhibitory/toxic conditions. Increased gas production resulted without an indication of serious inhibition by increased volatile acids, indicating a limitation of available carbon sources. For poultry manure digestion, the optimum pH range was 7.1 to 7.6. Annual costs for pretreatment/biogas systems for 10,000, 30,000 and 50,000 birds were estimated and compared with annual surplus energy produced. The economic break-even point was achieved in digesters for greater than 30,000 birds. Capital cost of the digester system was estimated to be $18,300 with annual costs around $4000. It is anticipated that the digester system could be economically applied to smaller farms as energy costs increase.

  15. Design and operation of small biogas plants

    SciTech Connect

    Abdel-Dayem, A.M.; Hamad, M.A.

    1980-12-01

    This paper concentrates on the experience gained from the adaptation of the Chinese biogas technology to rural areas of Egypt. Three different prototype digesters have been constructed. The first is a 10 M/sup 3/ rectangular digester of the water pressure type, the second is a 6 M/sup 3/ circular and shallow digester with domed roof and dished bottom. The third prototype unit with a capacity of 7 M/sup 3/ has been recently constructed. It combines the features of both plug flow and the Indian movable cap types. Provisions for solar heating of feed water, composting of effluent and attachments to both latrine and animal shed were incorporated in the unit. The structural theory, design criteria, construction technique and cost estimation of the circular digester are described. Some operation and performance data of the circular digester are presented. This covers the effects of variation of ambient temperature on internal temperature, effects of temperature and pressure on the gas production rate and composition.

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy From Municipal WWTPs: Fuel Cells Viewed as a Value Proposition Biogas From Municipal WWTPs: Fuel Cells Viewed as a Value Proposition Presentation about the value proposition for biogas from waste water treatment plants. Presented by Steve Hamilton, SCS Energy, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_hamilton.pdf (450.16 KB) More Documents & Publications Biogas and Fuel Cells Workshop Summary

  17. State Level Incentives for Biogas-Fuel Cell Projects | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Level Incentives for Biogas-Fuel Cell Projects State Level Incentives for Biogas-Fuel Cell Projects State policy and legislative outlook for biogas and fuel cells. Presented by Norma McDonald, Organic Waste Systems, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_mcdonald.pdf (1.9 MB) More Documents & Publications Power Purchase Agreements 2016 Tribal Energy and Economic Development May 4 Webinar: Understanding the Energy

  18. Biogas from agricultural and other wastes: a subject bibliography

    SciTech Connect

    Shadduck, G.

    1981-01-01

    This bibliography covers the following areas: application of anaerobic digestion to agricultural wastes, biochemistry and microbiology, factors in digester design and performance, digester design and types, digestion of individual materials, biogas use, use of digester effluent, integrated recycling systems, and economics and policy. (MHR)

  19. Increasing biogas yield of rural biogas digester by addition of NH/sub 4/HCO/sub 3/

    SciTech Connect

    Sun, G.C.; Chen, G.Q.; Chen, M.; Liu, K.X.; Zhou, S.Y.

    1983-12-01

    By addition of 0.3% NH/sub 4/HCO/sub 3/ instead of animal manure into rural biogas digester in which the rotted rice straw was the major feedstock, the biogas yield doubled in comparison with the check digester (0.1 m/sup 3//m/sup 3//d) and the fertility of NH/sub 4/HCO/sub 3/ did not decrease because of biogas fermentation. Many digesters have been built in China. But, owing to the problems of improper management, unsuitable influent mixing, etc., neither digesters nor feedstock were fully utilized. In order to solve these problems, adding NH/sub 4/HCO/sub 3/ into digester instead of animal manure was tried. Its results showed that the suitable C/N ratio of influent mixing was obtained, the fertility of effluent went up, and biogas producing rate increased. The concentration of NH/sub 4/HCO/sub 3/ is 0.2-0.6%, but the optimal is 0.3%.

  20. Oil merger trend: exploring the unknowns

    SciTech Connect

    Solomon, B.

    1984-03-26

    Experts disagree on the effect recent oil company mergers will have on exploration spending and US credit markets. Proclaiming the answers unknowable, some see the issue as surpassing antitrust concerns. It is generally agreed, however, that there will be less spending on exploration and production during the transition period of the merger. The effect on stocks is also unknown, but analysts suggest that shareholder's adjustments will have only a minimal effect on the credit market.

  1. High Temperature Fuel Cell Tri-Generation of Power, Heat & H2 from Biogas |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Tri-Generation of Power, Heat & H2 from Biogas High Temperature Fuel Cell Tri-Generation of Power, Heat & H2 from Biogas Success story about using waste water treatment gas for hydrogen production at UC Irvine. Presented by Jack Brouwer, UC Irvine, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_brouwer.pdf (4.1 MB) More Documents & Publications U.S. DOE Webinar Series - 2011-2012 Hydrogen

  2. Overview of An Analysis Project for Renewable Biogas / Fuel Cell Technologies (Presentation)

    SciTech Connect

    Jalalzadeh-Azar, A.

    2009-11-19

    Presentation on renewable biogas: as an opportunity for commercialization of fuel cells presented as part of a panel discussion at the 2009 Fuel Cell Seminar, Palm Springs, CA.

  3. O'Brien Biogas IV LLC Biomass Facility | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    References NEEDS 2006 Database Retrieved from "http:en.openei.orgwindex.php?titleO%27BrienBiogasIVLLCBiomassFacility&oldid397863" Feedback Contact needs updating...

  4. Performance evaluation of Janata and Deenbandhu biogas plants

    SciTech Connect

    Kalia, A.K.; Kanwar, S.S.

    1996-04-01

    Performance of the Janata and Deenbandhu fixed dome biogas plants for anaerobic digestion of dairy manure was evaluated under the conditions of a hilly region. In contrast to Janata, the Deenbandhu biogas plant was found to be not only cheaper on the basis of cost/m{sup 3} rated capacity of the plant, but it also produced more gas per unit of manure fed and per unit of digester volume in addition to maintaining a consistent rate of gas production during subsequent years from initial charging. The higher production of gas by 28.5% and 12.5% per kg of manure fed and 49.5% and 28.9% per m{sup 3} of digester volume was observed from this plant for highest 24 C and lowest 14 C digester temperatures of the plants for the months of July and December, respectively.

  5. Landfill Gas and Biogas - Energy Explained, Your Guide To Understanding

    Energy Information Administration (EIA) (indexed site)

    Energy - Energy Information Administration Landfill Gas and Biogas Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the Climate Where Greenhouse Gases Come

  6. Biogas production from Jatropha curcas press-cake

    SciTech Connect

    Staubmann, R.; Guebitz, G.M.; Lafferty, R.M.

    1997-12-31

    Seeds of the tropical plant Jatropha curcas (purge nut, physic nut) are used for the production of oil. Several methods for oil extraction have been developed. In all processes, about 50% of the weight of the seeds remain as a press cake containing mainly protein and carbohydrates. Investigations have shown that this residue contains toxic compounds and cannot be used as animal feed without further processing. Preliminary experiments have shown that the residue is a good substrate for biogas production. Biogas formation was studied using a semicontinous upflow anaerobic sludge blanket (UASB) reactor; a contact-process and an anaerobic filter each reactor having a total volume of 110 L. A maximum production rate of 3.5 m{sup 3} m{sup -3} d{sup -1} was obtained in the anaerobic filter with a loading rate of 13 kg COD m{sup -3} d{sup -1}. However, the UAS reactor and the contact-process were not suitable for using this substrate. When using an anaerobic filter with Jatropha curcas seed cake as a substrate, 76% of the COD was degraded and 1 kg degraded COD yielded 355 L of biogas containing 70% methane. 28 refs., 3 figs., 4 tabs.

  7. Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012

    SciTech Connect

    Not Available

    2013-01-01

    The U.S. Department of Energy (DOE) National Renewable Energy Laboratory (NREL) held a Biogas and Fuel Cells Workshop June 11-13, 2012, in Golden, Colorado, to discuss biogas and waste-to-energy technologies for fuel cell applications. The overall objective was to identify opportunities for coupling renewable biomethane with highly efficient fuel cells to produce electricity; heat; combined heat and power (CHP); or combined heat, hydrogen and power (CHHP) for stationary or motive applications. The workshop focused on biogas sourced from wastewater treatment plants (WWTPs), landfills, and industrial facilities that generate or process large amounts of organic waste, including large biofuel production facilities (biorefineries).

  8. Thermal analysis of a simple-cycle gas turbine in biogas power generation

    SciTech Connect

    Yomogida, D.E.; Thinh, Ngo Dinh

    1995-09-01

    This paper investigates the technical feasibility of utilizing small simple-cycle gas turbines (25 kW to 125 kW) for biogas power generation through thermal analysis. A computer code, GTPower, was developed to evaluate the performance of small simple-cycle gas turbines specifically for biogas combustion. The 125 KW Solar Gas Turbine (Tital series) has been selected as the base case gas turbine for biogas combustion. After its design parameters and typical operating conditions were entered into GTPower for analysis, GTPower outputted expected values for the thermal efficiency and specific work. For a sensitivity analysis, the GTPower Model outputted the thermal efficiency and specific work. For a sensitivity analysis, the GTPower Model outputted the thermal efficiency and specific work profiles for various operating conditions encountered in biogas combustion. These results will assist future research projects in determining the type of combustion device most suitable for biogas power generation.

  9. On-farm biogas systems information dissemination project. Final report

    SciTech Connect

    Campbell, J.K.; Koelsch, R.K.; Guest, R.W.; Fabian, E.

    1997-03-01

    The purpose of this project was to study how farmers manage anaerobic digesters on three New York State dairy farms. Two years of data collected were from both plug-flow and tower-type mixed-flow digesters at regular intervals over a three-year period revealed that the financial return from the energy produced by a biogass system in the late 1980`s is marginal. Little difficulty was experienced in operation of the anaerobic digester; however, several farms utilizing congeneration to convert biogas into electricity and heat suffered from not applying maintenance to the congenerator in a timely fashion.

  10. EA-1907: Biogas Anaerobic Digester Facility, Oakley, Kansas

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

  11. Biogas production from anaerobic digestion of Spirulina maxima algal biomass

    SciTech Connect

    Rejean Samson; Anh LeDuy

    1982-08-01

    Spirulina maxima algal biomass could be used as the sole nutrient for the production of biogas by anaerobic digestion process. It is relatively simple to adapt the municipal sewage sludge to this new substrate. The adapted sludge is very stable. Under nonoptimal conditions, the methane yield and productivity obtained were 0.26 m/sup 3//(kg VS added day) and 0.26 m/sup 3//(kg VS added day), respectively, with the semicontinuous, daily fed, anaerobic digestion having loading rate of 0.97 kg VS/(m/sup 3/ day), retention time of 33 days and temperature of 30/sup 0/C.

  12. Biogas Purifications for Fuel Cells: SulfaTrap Sorbents

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Purifications for Fuel Cells SulfaTrap TM Sorbents Gökhan Alptekin, PhD Vice President, Technology Tel: 303 940 2349 galptekin@tda.com DOE Workshop on Gas Clean-up for Fuel Cell Applications Argonne National Laboratory March 7, 2014 TDA Research Inc. * Wheat Ridge, CO 80033 * www.tda.com Background - SulfaTrap TM Sorbents Bio-ethanol desulfurizer SulfaTrap TM sorbents for stationary/mobile fuel cell applications * Fundamental work started at TDA Research in 2002 * SulfaTrap LLC was

  13. Innovative test method for the estimation of the foaming tendency of substrates for biogas plants

    SciTech Connect

    Moeller, Lucie; Eismann, Frank; Wißmann, Daniel; Nägele, Hans-Joachim; Zielonka, Simon; Müller, Roland A.; Zehnsdorf, Andreas

    2015-07-15

    Graphical abstract: Display Omitted - Highlights: • Foaming in biogas plants depends on the interactions between substrate and digestate. • Foaming tests enable the evaluation of substrate foaming tendency in biogas plants. • Leipzig foam tester enables foaming tests of substrates prior to use. - Abstract: Excessive foaming in anaerobic digestion occurs at many biogas plants and can cause problems including plugged gas pipes. Unfortunately, the majority of biogas plant operators are unable to identify the causes of foaming in their biogas reactor. The occurrence of foaming is often related to the chemical composition of substrates fed to the reactor. The consistency of the digestate itself is also a crucial part of the foam formation process. Thus, no specific recommendations concerning substrates can be given in order to prevent foam formation in biogas plants. The safest way to avoid foaming is to test the foaming tendency of substrates on-site. A possible solution is offered by an innovative foaming test. With the help of this tool, biogas plant operators can evaluate the foaming disposition of new substrates prior to use in order to adjust the composition of substrate mixes.

  14. Energy Economics of Farm Biogas in Cold Climates

    SciTech Connect

    Pillay, Pragasen; Grimberg, Stefan; Powers, Susan E

    2012-10-24

    Anaerobic digestion of farm and dairy waste has been shown to be capital intensive. One way to improve digester economics is to co-digest high-energy substrates together with the dairy manure. Cheese whey for example represents a high-energy substrate that is generated during cheese manufacture. There are currently no quantitative tools available that predict performance of co-digestion farm systems. The goal of this project was to develop a mathematical tool that would (1) predict the impact of co-digestion and (2) determine the best use of the generated biogas for a cheese manufacturing plant. Two models were developed that separately could be used to meet both goals of the project. Given current pricing structures of the most economical use of the generated biogas at the cheese manufacturing plant was as a replacement of fuel oil to generate heat. The developed digester model accurately predicted the performance of 26 farm digesters operating in the North Eastern U.S.

  15. Biogas production from anaerobic digestion of Spirulina maxima algal biomass

    SciTech Connect

    Samson, R.; LeDuy, A.

    1982-08-01

    The photosynthetic spectrum of solar energy could be exploited for the production of chemical energy of methane through the combined algal-bacterial process. In this process, the algae are mass produced from light and from carbon in the first step. The algal biomass is then used as a nutrient for feeding the anaerobic digester, in the second step, for the production of methane by anaerobic bacteria. The carbon source for the production of algal biomass could be either organic carbon from wastewaters (for eucaryotic algae), or carbon dioxide from the atmosphere or from the combustion exhaust gases (for both prokaryotic and eukaryotic algae). The technical feasibility data on the anaerobic digestion of algal biomass have been reported for many species of algae including macroscopic algae and microscopic algae. Research being conducted in the authors' laboratory consists of using the semimicroscopic blue-green alga Spirulina maxima as the sole substrate for this combined algal-bacterial process. This species of alga is very attractive for the process because of its capability of using the atmospheric carbon dioxide as carbon source and its simple harvesting methods. Furthermore, it appeared that the fermentability of S. maxima is significantly higher than other microscopic algae. This communication presents the results on the anaerobic inoculum development by the adaptation technique. This inoculum was then used for the semicontinuous anaerobic digestion of S. maxima algal biomass. The evolutions of biogas production and composition, biogas yield, total volatile fatty acids, alkalinity, ammonia nitrogen, pH, and electrode potential were followed.

  16. Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power - Fact

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sheet, 2015 | Department of Energy Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power - Fact Sheet, 2015 Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power - Fact Sheet, 2015 TDA Research Inc., in collaboration with FuelCell Energy, is developing a new, high-capacity sorbent to remove sulfur from anaerobic digester gas. This technology will enable the production of a nearly sulfur-free biogas to replace natural gas in fuel cell power plants while reducing

  17. Novel Sorbent to Clean Up Biogas for CHPs

    SciTech Connect

    Alptekin, Gökhan O.; Jayataman, Ambalavanan; Schaefer, Matthew; Ware, Michael; Hunt, Jennifer; Dobek, Frank

    2015-05-30

    In this project, TDA Research Inc. (TDA) has developed low-cost (on a per unit volume of gas processed basis), high-capacity expendable sorbents that can remove both the H2S and organic sulfur species in biogas to the ppb levels. The proposed sorbents will operate downstream of a bulk desulfurization system as a polishing bed to provide an essentially sulfur-free gas to a fuel cell (or any other application that needs a completely sulfur-free feed). Our sorbents use a highly dispersed mixed metal oxides active phase with desired modifiers prepared over on a mesoporous support. The support structure allows the large organic sulfur compounds (such as the diethyl sulfide and dipropyl sulfide phases with a large kinetic diameter) to enter the sorbent pores so that they can be adsorbed and removed from the gas stream.

  18. Biogas production from anaerobic digestion of Spirulina maxima algal biomass

    SciTech Connect

    Samson, R.; LeDuy, A.

    1982-08-01

    The semimicroscopic blue-green alga Spirulina maxima makes an ideal substrate for anaerobic digestion because it is easy to harvest, it can use carbon dioxide from the atmosphere as its carbon source, and its fermentability is higher than that of other small algae. Digestion experiments demonstrated that S. maxima can serve as the sole nutrient for biogas production and that municipal sewage sludge, when adapted to this new substrate, is very stable. During semicontinuous daily-fed trials under non-optimal conditions at an 0.06 lb volatile solids (VS)/ft/sup 3/ (0.97 kg VS/m/sup 3/) loading rate, 33-day retention time, and 86/sup 0/F (30/sup 0/C) digestion temperature, the daily methane yield was 4.2 CF/lb (0.26 m/sup 3//kg) VS added, which represents 47% of the maximum theoretical yield. Studies on optimizing the process are underway.

  19. Biogas to Liquid Fuels and Chemicals Presentation for BETO 2015 Project Peer Review

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas to Liquid Fuels and Chemicals Using a Methanotrophic Microorganism WBS 2.3.2.102 2015 DOE BioEnergy Technologies Office (BETO) Project Peer Review March 24, 2015 Technology Area: Biochemical Conversion Principal Investigator: Michael T. Guarnieri Organization: National Renewable Energy Laboratory 2 Goal Statement Goals 1. Demonstrate proof of concept for a biogas-to-liquid fuels and chemicals process. 2. Enhance carbon conversion efficiency from methane to biomass and products. Outcome:

  20. One Year Down the Road of Biogas Industry Development | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy One Year Down the Road of Biogas Industry Development One Year Down the Road of Biogas Industry Development December 18, 2015 - 9:40am Addthis Newtown Creek Wastewater Treatment Plant | New York City Department of Environmental Protection Newtown Creek Wastewater Treatment Plant | New York City Department of Environmental Protection DC Water’s Blue Plains Advanced Wastewater Treatment Plant | DC water DC Water's Blue Plains Advanced Wastewater Treatment Plant | DC water Newtown

  1. City of Tulare Renewable Biogas Fuel Cell Project | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    City of Tulare Renewable Biogas Fuel Cell Project City of Tulare Renewable Biogas Fuel Cell Project Presented at the Technology Transition Corporation and U.S. Department of Energy Fuel Cell Technologies Program Webinar: Go Local: Maximizing Your Local Renewable Resources With Fuel Cells, August 16, 2011. webinaraug16_nelson.pdf (3.26 MB) More Documents & Publications Vehicle Technologies Office Merit Review 2016: Co-Optimization of Fuels and Engines (Co-Optima) Overview Synergy between

  2. High Temperature Fuel Cell Tri-Generation of Power, Heat & H2 from Biogas

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    National Fuel Cell Research Center, 2012 1/22 High Temperature Fuel Cell Tri-Generation of Power, Heat & H 2 from Biogas Jack Brouwer, Ph.D. June 19, 2012 DOE/ NREL Biogas Workshop - Golden, CO © National Fuel Cell Research Center, 2012 2/22 Outline * Introduction and Background * Tri-Generation/Poly-Generation Analyses * OCSD Project Introduction © National Fuel Cell Research Center, 2012 3/22 Introduction and Background * Hydrogen fuel cell vehicle performance is outstanding * Energy

  3. Discovering a previously unknown mechanism that halts solar eruptions...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    a previously unknown mechanism that halts solar eruptions before they blast into space By John Greenwald December 23, 2015 Tweet Widget Google Plus One Share on Facebook...

  4. The method of solid fermentation of biogas in Chinese rural areas

    SciTech Connect

    Zou, Y.; Zhao, Z.

    1983-12-01

    This report describes laboratory experimental results of solid method of biogas fermentation by using farm stalks and livestock manure as raw materials but without hydraulic pressure. Under natural conditions of ordinary temperature, the average rate of biogas production for 100 days has increased from 0.13 m/sup 3//m/sup 3/ of materials per day by using hydraulic pressure to 0.37 m/sup 3//m/sup 3/ of materials per day with dry method. The amount of gas produced per kg by the volatile solid material increases about 14% and there is little change in the methane content of the biogas. At present the biogas fermentation by means of hydraulic pressure in Chinese rural areas has certain special features, but there are disadvantages of low rate of biogas production and difficulty in filling and taking off materials. It requires about 100 dans (50 kg = 1 dan) of water to fill a digester. Hence a lot of labour is required. And, without stirring, it may easily result in separation of material and liquid in two layers and the formation of scum of the floating materials. It is thus unfavorable for microbial activities. According to our previous experiments and the reports of other workers, one of the important reasons for the low rate of biogas production is due to insufficient total solid (TS) content of the fermentation material. In this experiment, the authors used the method of solid fermentation instead of hydraulic pressure and obtained nearly double the rate of biogas production using smaller digesters which did not require as much labor to fill and remove materials.

  5. Bayesian methods for characterizing unknown parameters of material models

    DOE PAGES [OSTI]

    Emery, J. M.; Grigoriu, M. D.; Field Jr., R. V.

    2016-02-04

    A Bayesian framework is developed for characterizing the unknown parameters of probabilistic models for material properties. In this framework, the unknown parameters are viewed as random and described by their posterior distributions obtained from prior information and measurements of quantities of interest that are observable and depend on the unknown parameters. The proposed Bayesian method is applied to characterize an unknown spatial correlation of the conductivity field in the definition of a stochastic transport equation and to solve this equation by Monte Carlo simulation and stochastic reduced order models (SROMs). As a result, the Bayesian method is also employed tomore » characterize unknown parameters of material properties for laser welds from measurements of peak forces sustained by these welds.« less

  6. Demonstration of anaerobic biogas digesters in developing countries. Part III. The Philippines

    SciTech Connect

    Simpson, M.H.; Morales, E.C.

    1980-03-01

    The main theme of this series of articles is that ours is now a world-wide society, short on meeting needs for energy yet long on waste from our industrial, agricultural and human consumption processes. This is a study report about developments in the Philippines where waste management has been recognized and considered as an important practical source of energy. This is revealed by several reports of the number of biogas plants in operation in this country. According to the July 31, 1977 survey made by the Philippines Bureau of Animal Industries, 200 biogas plants were then installed and in operation of which 46 were government-owned and 154 privately-owned. More have been installed since then. This report presents some of the operating observations and developments from the joint engineering analyses project of the Philippines Bureau of Animal Industry, Man and the Biosphere Inter-Agency Committee on Ecological Studies, Bureau of Fisheries and Aquatic Resources and the National Institute of Science and Technology. The project's main objective was to show that establishing a biogas plant involves not only the production of a methane gas mixture but the integration of its other products as part of a system (i.e., using effluent water from the biogas digester for production of algae chlorell sp. for livestock and poultry feed, production of fish and fertilizing-irrigating of pasture and vegetable plots.). Housing development sewer systems with added biogas generators are also discussed.

  7. System for identifying known materials within a mixture of unknowns

    DOEpatents

    Wagner, John S.

    1999-01-01

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy.

  8. Method for identifying known materials within a mixture of unknowns

    DOEpatents

    Wagner, John S.

    2000-01-01

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy.

  9. System for identifying known materials within a mixture of unknowns

    DOEpatents

    Wagner, J.S.

    1999-07-20

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy. 37 figs.

  10. Biogas from bio-waste-potential for an ecological waste and energy management in resort hotels

    SciTech Connect

    Steinbach, D.; Schultheis, A.

    1996-12-31

    This paper gives an overview about waste management in holiday resorts. The objective is to determine the composition of waste and the specific waste quantities per guest. This data represents the basis for planning recycling measures and corresponding treatment facilities. The sorting analyses show the great potential of organic material suitable for biological treatment. Because of the characteristics (water content, structure) of these organic materials, composting is not as suitable as fermentation. Fermentation tests with hotel bio-waste turned out a much higher rate of biogas compared with communal bio-waste. Until now, biogas as a possibility of regenerative energy, has not been taken into consideration for big hotels or holiday resorts. Using biogas as an additional source of energy and the fermentation products as fertilizer would be a further step to an ecologically beneficial tourism.

  11. Comparative analysis of environmental impacts of maize-biogas and photovoltaics on a land use basis

    SciTech Connect

    Graebig, Markus; Fenner, Richard; Bringezu, Stefan

    2010-07-15

    This study aims to stimulate the discussion on how to optimize a sustainable energy mix from an environmental perspective and how to apply existing renewable energy sources in the most efficient way. Ground-mounted photovoltaics (PV) and the maize-biogas-electricity route are compared with regard to their potential to mitigate environmental pressure, assuming that a given agricultural area is available for energy production. Existing life cycle assessment (LCA) studies are taken as a basis to analyse environmental impacts of those technologies in relation to conventional technology for power and heat generation. The life-cycle-wide mitigation potential per area used is calculated for the impact categories non-renewable energy input, green house gas (GHG) emissions, acidification and eutrophication. The environmental performance of each system depends on the scenario that is assumed for end energy use (electricity and heat supply have been contemplated). In all scenarios under consideration, PV turns out to be superior to biogas in almost all studied impact categories. Even when maize is used for electricity production in connection with very efficient heat usage, and reduced PV performance is assumed to account for intermittence, PV can still mitigate about four times the amount of green house gas emissions and non-renewable energy input compared to maize-biogas. Soil erosion, which can be entirely avoided with PV, exceeds soil renewal rates roughly 20-fold on maize fields. Regarding the overall Eco-indicator 99 (H) score under most favourable assumptions for the maize-biogas route, PV has still a more than 100% higher potential to mitigate environmental burden. At present, the key advantages of biogas are its price and its availability without intermittence. In the long run, and with respect to more efficient land use, biogas might preferably be produced from organic waste or manure, whereas PV should be integrated into buildings and infrastructures. (author)

  12. Improved biogas production from rice straw by co-digestion with kitchen waste and pig manure

    SciTech Connect

    Ye, Jingqing; Li, Dong; Sun, Yongming; Wang, Guohui; Yuan, Zhenhong; Zhen, Feng; Wang, Yao

    2013-12-15

    Highlights: • Biogas production was enhanced by co-digestion of rice straw with other materials. • The optimal ratio of kitchen waste, pig manure and rice straw is 0.4:1.6:1. • The maximum biogas yield of 674.4 L/kg VS was obtained. • VFA inhibition occurred when kitchen waste content was more than 26%. • The dominant VFA were propionate and acetate in successful reactors. - Abstract: In order to investigate the effect of feedstock ratios in biogas production, anaerobic co-digestions of rice straw with kitchen waste and pig manure were carried out. A series of single-stage batch mesophilic (37 ± 1 °C) anaerobic digestions were performed at a substrate concentration of 54 g/L based on volatile solids (VS). The results showed that the optimal ratio of kitchen waste, pig manure, and rice straw was 0.4:1.6:1, for which the C/N ratio was 21.7. The methane content was 45.9–70.0% and rate of VS reduction was 55.8%. The biogas yield of 674.4 L/kg VS was higher than that of the digestion of rice straw or pig manure alone by 71.67% and 10.41%, respectively. Inhibition of biogas production by volatile fatty acids (VFA) occurred when the addition of kitchen waste was greater than 26%. The VFA analysis showed that, in the reactors that successfully produced biogas, the dominant intermediate metabolites were propionate and acetate, while they were lactic acid, acetate, and propionate in the others.

  13. H2A Biomethane Model Documentation and a Case Study for Biogas From Dairy Farms

    SciTech Connect

    Saur, G.; Jalalzadeh, A.

    2010-12-01

    The new H2A Biomethane model was developed to estimate the levelized cost of biomethane by using the framework of the vetted original H2A models for hydrogen production and delivery. For biomethane production, biogas from sources such as dairy farms and landfills is upgraded by a cleanup process. The model also estimates the cost to compress and transport the product gas via the pipeline to export it to the natural gas grid or any other potential end-use site. Inputs include feed biogas composition and cost, required biomethane quality, cleanup equipment capital and operations and maintenance costs, process electricity usage and costs, and pipeline delivery specifications.

  14. Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power

    SciTech Connect

    2009-11-01

    TDA Research Inc., in collaboration with FuelCell Energy, will develop a new, high-capacity sorbent to remove sulfur from anaerobic digester gas. This technology will enable the production of a nearly sulfur-free biogas to replace natural gas in fuel cell power plants while reducing greenhouse gas emissions from fossil fuels.

  15. Energy production potential of a 100 m/sup 3/ biogas generator

    SciTech Connect

    Bartlett, H.D.; Persson, S.P.; Regan, R.W.

    1981-01-01

    The Penn State 100-cow capacity digester system - 100 m/sup 3/ (Upright Silo), heated (35/sup 0/C), continuous feed (1 to 2 times daily), gas agitation (continuously) - operated dependably on a continuous basis for periods as long as 9 months. Alternative systems for handling high solids-content input (up to 15% TS) were tested. Daily feedings of dairy manure slurries (8 to 15% TS) at rates of 345 to 1030 kg VS resulted in total biogas production rates of 70 to 200 m/sup 3//day, respectively. Increased loading rates, and related reduction in retention time to as low as 11 days, increased the energy recovery ratio (m/sup 3/ biogas/m/sup 3/ digester volume) to 2.02. Daily energy production was as high as 35,000 kJ/cow. Part of the biogas produced was used satisfactorily as fuel or a hot water boiler to heat incoming slurry and offset the digester heat losses. Tests of biogas as fuel for a water heater and for internal combustion engines showed combustion efficiencies comparable to other fuels on the basis of its energy content. Experience in operating the digester over a 4-year period showed that uncoated, galvanized, or enamel-painted steel are unsatisfactory for digester components that are in contact with both biogas and slurry. Carefully applied epoxy paints seemed to adequately protect continuously submerged steel components. Concrete, plastic, stainless steel, and treated wood appear to be suitable construction materials. Estimated costs versus returns for the Penn State digester system (75 to 76 prices) were $20,000 initial costs, and an annual return equal to the value of 900 GJ of energy.

  16. Chinese biogas digester: a potential model for small-scale, rural applications (a manual for construction and operation)

    SciTech Connect

    Nakagawa, C.H.; Honquilada, Q.L.

    1985-07-01

    This report gives a thorough description of a Philippine biogas project. It provides basic knowledge and guidance for the construction and operation of a small-scale family-size biogas unit. The report includes benefits of installation and a general overview of the construction process: structural features/considerations, planning/preparation, site consideration and operation and maintenance provisions. Contains numerous sketches, design diagrams, appendices and a reference bibliography.

  17. Discovering a previously unknown mechanism that halts solar eruptions

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    before they blast into space | Princeton Plasma Physics Lab Discovering a previously unknown mechanism that halts solar eruptions before they blast into space By John Greenwald December 23, 2015 Tweet Widget Google Plus One Share on Facebook This solar flare occurred at the peak of the solar cycle in October 2014 with no observed eruptions. PPPL researchers say this is a promising candidate for studying the effect of guide magnetic fields. (Photo by NASA) This solar flare occurred at the

  18. Discovering a previously unknown mechanism that halts solar eruptions

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    before they blast into space | Princeton Plasma Physics Lab Discovering a previously unknown mechanism that halts solar eruptions before they blast into space By John Greenwald December 23, 2015 Tweet Widget Google Plus One Share on Facebook This solar flare occurred at the peak of the solar cycle in October 2014 with no observed eruptions. PPPL researchers say this is a promising candidate for studying the effect of guide magnetic fields. (Photo by NASA) This solar flare occurred at the

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    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

  20. Biogas production in Kentucky: A best management practice alternative for nonpoint source pollution prevention

    SciTech Connect

    Zourarakis, D.P.; Coleman, S.A.; Thom, W.O.

    1996-12-31

    Despite continued conservation efforts on the part of private landowners, citizens groups, universities, and government agencies, the lack of adequate animal waste management systems still poses a significant threat to both water and land quality in Kentucky. Recent surveys indicate that only a fraction of the animal confinement units in the state have waste management systems in good operating condition. Biogas production systems are not presently included as a technological option or {open_quotes}best management practice{close_quotes} (BMP) for recycling animal wastes and are not eligible for Cost Share financial aid programs. Abundant animal manure is produced as a reasonably collectible resource in farm operations where dairy cattle, swine, and poultry are raised. Broiler and layer houses are rapidly proliferating in the western part of the state. This paper assesses the economic viability of using a low-cost, floating cover lagoon technology to collect biogas and generate electricity in several types of animal raising operations. In cases where the biogas energy can be used effectively on the farm and the technology receives partial funding as a BMP, the technology is economically viable.

  1. Design consideration and economic analysis of a community size biogas unit

    SciTech Connect

    Abbus, S.P.

    1983-12-01

    At present, various organizations in Pakistan are involved in RandD work in biogas technology. Most of them are government organizations. The units developed or advertised by these organizations are of small size, i.e., for a single family, to provide gas for cooking and lighting only. In this paper, the design of a community-size biogas unit for power generation has been discussed based on hydraulic flow characteristics. The type of digesters which have been discussed are plug flow, arbitrary flow and complete mix flow. As the biological activity of the organic material in the reactor depends on the residence time and also on the temperature of the digesting liquor, hence the flow characteristics play a major role in the sizing of the digestion reactor tank. A diesel engine coupled with the biogas unit has been discussed. This not only provides power for pumping water, power for cottage industries, etc., but also the waste heat from the internal combustion engine can be used to heat the digester or for other heating needs. The economic evaluation of such a plant has been completed and the payback period has been calculated.

  2. Biogas energy for Hawaiian small farms and homesteads, HI-11. Final report

    SciTech Connect

    Weitzenhoff, M.H.

    1980-02-01

    This report contains the results of a US Department of Energy, Appropriate Energy Technology grant for the development and demonstration of a simple, easy-to-operate and high energy yielding anaerobic bioconversion system for Hawaiian small scale hog farms. The system included a flexible material ''rubber'' digester, gas storage tank, algae pond, wastewater recycling loop, and gas utilization appliances. Ten cubic feet of biogas per 150 pound hog per day was identified as the sustainable yield of biogas using this system under Hawaiian farm conditions at a 15-day retention period without heating or mixing the anaerobic digester. Cost of the system was compared with the economic value of the gas produced and the investment recovery period was found to be 1.16 years. Biogas was used to fuel numerous farm appliances, including nursery infra-red heaters, gas lamps and an internal combustion powered water pump. Digested pig manure was renovated by recycling through an algae pond, after which it was used in biweekly hog housing sanitation washdowns. Finally, the results of the project have been promulgated through informal seminars, workshops, and the publication-distribution of a farmer oriented manual on digester installation and operation. 6 refs., 14 figs., 1 tab.

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

    SciTech Connect

    Nges, Ivo Achu; Escobar, Federico; Fu Xinmei; Bjoernsson, Lovisa

    2012-01-15

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

  4. Upgraded biogas from municipal solid waste for natural gas substitution and CO{sub 2} reduction – A case study of Austria, Italy, and Spain

    SciTech Connect

    Starr, Katherine; Villalba, Gara; Gabarrell, Xavier

    2015-04-15

    Highlights: • Biogas can be upgraded to create biomethane, a substitute to natural gas. • Biogas upgrading was applied to landfills and anaerobic digestors in 3 countries. • Up to 0.6% of a country’s consumption of natural gas could be replaced by biomethane. • Italy could save 46% of the national CO{sub 2} emissions attributed to the waste sector. • Scenarios were created to increase biomethane production. - Abstract: Biogas is rich in methane and can be further purified through biogas upgrading technologies, presenting a viable alternative to natural gas. Landfills and anaerobic digestors treating municipal solid waste are a large source of such biogas. They therefore offer an attractive opportunity to tap into this potential source of natural gas while at the same time minimizing the global warming impact resulting from methane emissions in waste management schemes (WMS) and fossil fuel consumption reduction. This study looks at the current municipal solid waste flows of Spain, Italy, and Austria over one year (2009), in order to determine how much biogas is generated. Then it examines how much natural gas could be substituted by using four different biogas upgrading technologies. Based on current waste generation rates, exploratory but realistic WMS were created for each country in order to maximize biogas production and potential for natural gas substitution. It was found that the potential substitution of natural gas by biogas resulting from the current WMS seems rather insignificant: 0.2% for Austria, 0.6% for Italy and 0.3% for Spain. However, if the WMS is redesigned to maximize biogas production, these figures can increase to 0.7% for Austria, 1% for Italy and 2% for Spain. Furthermore, the potential CO{sub 2} reduction as a consequence of capturing the biogas and replacing fossil fuel can result in up to a 93% reduction of the annual national waste greenhouse gas emissions of Spain and Italy.

  5. Simulated NMIS Imaging Data for an Unknown Object

    SciTech Connect

    Walker, Mark E; Mihalczo, John T

    2012-04-01

    This report presents simulated Nuclear Materials Identification System (NMIS) imaging data for an unclassified object, whose characteristics are initially unknown to the reader. This data will be used to test various analysis capabilities and was created with a simple deterministic ray-tracing algorithm. NMIS is a time-dependent coincidence counting system that is used to characterize both fissile and non-fissile materials undergoing nondestructive assay. NMIS characterizes materials by interrogating them with neutrons, either from an associated-particle deuterium-tritium (DT) neutron generator, which produces a time and directionally tagged monoenergetic beam of 14.1 MeV neutrons, or a time-tagged spontaneous fission source in an ionization chamber.

  6. Environmental assessment and finding of no significant impact: Biorecycling Technologies, Inc., Noble Biogas and Fertilizer Plant, Fresno County, California

    SciTech Connect

    1997-09-01

    The US Department of Energy (DOE) is considering a proposal from the California Energy Commission for partial funding up to $1,500,000 of the construction of the biorecycling Technologies, Inc., (BTI) Noble Biogas and Fertilizer Plant in Fresno County, California. BTI along with its contractors and business partners would develop the plant, which would use manure and green waste to produce biogas and a variety of organic fertilizer products. The California Energy Commission has requested funding from the DOE Commercialization Ventures program to assist in the construction of the plant, which would produce up to one megawatt of electricity by burning biogas in a cogeneration unit. The purpose of this environmental assessment (EA) is to provide DOE and the public with information on potential environmental impacts associated with funding development of the proposed project.

  7. Evaluating the biogas potential of the dry fraction from pretreatment of food waste from households

    SciTech Connect

    Murto, Marika; Björnsson, Lovisa; Rosqvist, Håkan; Bohn, Irene

    2013-05-15

    Highlights: ► A novel approach for biogas production from a waste fraction that today is incinerated. ► Biogas production is possible in spite of the impurities of the waste. ► Tracer studies are applied in a novel way. ► Structural material is needed to improve the flow pattern of the waste. ► We provide a solution to biological treatment for the complex waste fraction. - Abstract: At the waste handling company NSR, Helsingborg, Sweden, the food waste fraction of source separated municipal solid waste is pretreated to obtain a liquid fraction, which is used for biogas production, and a dry fraction, which is at present incinerated. This pretreatment and separation is performed to remove impurities, however also some of the organic material is removed. The possibility of realising the methane potential of the dry fraction through batch-wise dry anaerobic digestion was investigated. The anaerobic digestion technique used was a two-stage process consisting of a static leach bed reactor and a methane reactor. Treatment of the dry fraction alone and in a mixture with structural material was tested to investigate the effect on the porosity of the leach bed. A tracer experiment was carried out to investigate the liquid flow through the leach beds, and this method proved useful in demonstrating a more homogenous flow through the leach bed when structural material was added. Addition of structural material to the dry fraction was needed to achieve a functional digestion process. A methane yield of 98 m{sup 3}/ton was obtained from the dry fraction mixed with structural material after 76 days of digestion. This was in the same range as obtained in the laboratory scale biochemical methane potential test, showing that it was possible to extract the organic content in the dry fraction in this type of dry digestion system for the production of methane.

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

    SciTech Connect

    Maranon, E.; Castrillon, L.; Quiroga, G.; Fernandez-Nava, Y.; Gomez, L.; Garcia, M.M.

    2012-10-15

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

  9. Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power Systems

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Gökhan O. Alptekin TDA Research, Inc. Wheat Ridge, CO U.S. DOE Advanced Manufacturing Office Peer Review Meeting Washington, D.C. May 6-7, 2014 This presentation does not contain any proprietary, confidential, or otherwise restricted information. Project Objective  The objective is to develop a low-cost, high-capacity expendable sorbent to remove both sulfur species in biogas to ppb levels, making its use possible in a fuel cell CHP unit  The high concentrations of sulfur species in the

  10. Biogas Cleanup Challenges and R&D Needs for Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biogas Cleanup Challenges and R&D Needs for Fuel Cells Chakravarthy Sishtla, Gas Technology Institute Presented at the Gas Cleanup for Fuel Cell Applications Workshop Argonne National Laboratory, March 7, 2014 ANL Gas Cleanup Workshop March 7, 2014 2 Flex-Fuel GTI at a Glance... > Not-for-profit research, with 65+ year history > Facilities ─ 18 acre campus near Chicago ─ 200,000 ft 2 , 28 specialized labs > $60 + million in revenue > Staff of 250 Test Offices Facility > A

  11. Membrane separation of CO{sub 2} and H{sub 2}S from biogas for industrial cogeneration purposes

    SciTech Connect

    Calabro, L.A.; Friedman, A.A.; Stern, S.A.; Krishnakumar, B.

    1996-11-01

    Membrane separation processes are being used on an increasingly larger scale for a wide variety of gas mixtures. The objective of this study was to assess the feasibility and economics of a new membrane separation process for upgrading the CH{sub 4} content of biogas produced by anaerobic processes in industrial wastewater treatment plants. The upgraded biogas can be utilized for the cogeneration of electricity and heat, which could result in substantial savings in plant operation costs. This paper reports preliminary results of laboratory and pilot plant studies on the separation of CO{sub 2} and H{sub 2}S from mixtures with CH{sub 4} by means of polymer membranes in the form of hollow fibers. Both synthetic CH{sub 4}/CO{sub 2} and CH{sub 4}/CO{sub 2}H{sub 2}S mixtures and biogas produced in a municipal wastewater treatment plant were used in a range of elevated pressures selected to determine optimum operating conditions. These data were used to develop economic assessments of cogeneration systems fueled with biogas upgraded by membrane systems.

  12. Determination of biogas generation potential as a renewable energy source from supermarket wastes

    SciTech Connect

    Alkanok, Gizem; Demirel, Burak Onay, Turgut T.

    2014-01-15

    Highlights: • Disposal of supermarket wastes in landfills may contribute to environmental pollution. • High methane yields can be obtained from supermarket wastes by anaerobic co-digestion. • Fruit and vegetable wastes or dairy products wastes could individually be handled by a two-stage anaerobic process. • Buffering capacity, trace metal and C/N ratio are essential for digestion of supermarket wastes. - Abstract: Fruit, vegetable, flower waste (FVFW), dairy products waste (DPW), meat waste (MW) and sugar waste (SW) obtained from a supermarket chain were anaerobically digested, in order to recover methane as a source of renewable energy. Batch mesophilic anaerobic reactors were run at total solids (TS) ratios of 5%, 8% and 10%. The highest methane yield of 0.44 L CH{sub 4}/g VS{sub added} was obtained from anaerobic digestion of wastes (FVFW + DPW + MW + SW) at 10% TS, with 66.4% of methane (CH{sub 4}) composition in biogas. Anaerobic digestion of mixed wastes at 5% and 8% TS provided slightly lower methane yields of 0.41 and 0.40 L CH{sub 4}/g VS{sub added}, respectively. When the wastes were digested alone without co-substrate addition, the highest methane yield of 0.40 L CH{sub 4}/g VS{sub added} was obtained from FVFW at 5% TS. Generally, although the volatile solids (VS) conversion percentages seemed low during the experiments, higher methane yields could be obtained from anaerobic digestion of supermarket wastes. A suitable carbon/nitrogen (C/N) ratio, proper adjustment of the buffering capacity and the addition of essential trace nutrients (such as Ni) could improve VS conversion and biogas production yields significantly.

  13. Process and installation for simultaneously producing compost and biogas from organic waste

    SciTech Connect

    Lebesgue, Y.; Zeana, A.

    1986-12-30

    A process is described for the simultaneous treatment of solid or semi-solid organic waste and liquid organic waste with a view to the simultaneous production of compost and biogas, wherein the liquid organic waste is subjected to a liquid-solid separation. The liquid phase from this separation is subjected to anaerobic fermentation in at least one closed digester, the solid phase from the liquid-solid separation is mixed with the solid or semi-solid organic waste, and the resulting mixture is subjected to aerobic fermentation at the periphery of the digester and in contact therewith. Mud, clarified liquid and gas are respectively discharged from the digester whereas compost from the aerobic fermentation of the solid or semi-solid waste is recovered at the periphery of the digester wherein the digester is characterized by two superimposed compartments, an upper compartment at low pressure and a lower compartment at high pressure, the compartments communicating together through at least one lateral pipe and through a central siphon. A means is provided for lowering the pressure of the lower compartment when the liquid reaches a predetermined level therein. An installation is described for the simultaneous treatment of solid or semi-solid organic waste and liquid waste with a view to the simultaneous production of compost and biogas. This comprises: means for separating the liquid organic waste into a solid phase and a liquid phase; at least one closed digester; means for introducing the liquid phase into the digester; means for mixing the solid phase with the solid or semi-solid waste; means for bringing the resulting mixture to the periphery of the digester in contact therewith; and means for discharging respectively from the digester the gas which is formed therein by anaerobic fermentation and the sludges which are deposited therein.

  14. Presence of Siloxanes in the Biogas of a Wastewater Treatment Plant Separation in Condensates and Influence of the Dose of Iron Chloride on its Elimination

    SciTech Connect

    Mariano, García; Daniel, Prats; Arturo, Trapote

    2015-12-21

    The siloxanes present in the biogas produced during anaerobic digestion damage the mechanism of cogeneration equipment and, consequently, negatively affect the energy valorization process. For this reason, the detection and elimination of these silicon-derived chemical compounds are a priority in the management of cogeneration facilities. In this regard, the objectives of this paper are, firstly, to characterize the siloxanes in the biogas and, secondly, to qualitatively evaluate the influence of the dose of iron chloride on its elimination. The research was performed at the Rincón de León Wastewater Treatment Plant (Alicante, Spain). The outflow biogas of the digesters and of the pressurized gasometers was sampled and analyzed. The results obtained made it possible to demonstrate, firstly, the absence of linear siloxanes and that, of the cyclic siloxanes, the predominant type was decamethylcyclopentasiloxane, and, secondly, that the addition of iron chloride in the digesters significantly reduces the siloxane content in the biogas. Additionally, it was demonstrated that the process of compression of the biogas, with the elimination of condensates, also produces significant reductions in the concentration of siloxanes in the biogas.

  15. Biogas and alcohol fuels production. Proceedings of the Seminar on Biomass, Energy for City, Farm, and Industry, Chicago, IL, October 25, 26, 1979

    SciTech Connect

    Goldstein, J.

    1980-01-01

    Basic principles of anaerobic digestion are considered along with the status of the Imperial Valley Biogas Project, the Department of Energy program for the recovery of energy and materials from urban waste, the principles of alcohol production from wastes, the mechanical recovery of a refuse-derived cellulosic feedstock for ethanol production, and the production of ethanol from cellulosic biomass. Attention is given to on-farm alcohol fuel production, the current status and future role of gasohol production, methane generation from small scale farms, farmsite installations of energy harvester anaerobic digesters, biogas/composting and landfill recovery, farm-scale composting as an option to anaerobic digestion, designing a high-quality biogas system, and methane as fuel of the future. A description is presented of subjects which are related to landfill gas recovery, biogas purification with permselective membranes, and anaerobic digestion of marine biomass. Other topics studied include the application of biogas technology in India, biogas production in China, biogasification of organic wastes in the Republic of the Philippines, and economics and operational experience of full-scale anaerobic dairy manure digester.

  16. Effects of total solids concentrations of poultry, cattle, and piggery waste slurries on biogas yield

    SciTech Connect

    Itodo, I.N.; Awulu, J.O.

    1999-12-01

    The effects of total solids concentrations of poultry, cattle and piggery waste slurries on biogas yield was investigated. Twelve laboratory-size anaerobic batch digesters with 25 L volume were constructed and used for the experiments. Three replicates of 5%, 10%, 15%, and 20% TS concentrations of poultry, cattle, and piggery waste slurries were anaerobically digested for a 30-day detention period and gas yield was measured by the method of water displacement. Temperature variation within the digesters was measured with a maximum and minimum thermometer. Anaerobic digestion of the slurries was undertaken in the mesophilic temperature range (20--40 C). The carbon:nitrogen ratio of each of the slurries digested was determined. The carbon content was determined using the wackley-Black method, and nitrogen content was determined by the regular kjeldhal method. The pH was measured weekly during the period of digestion from a digital pH meter. Gas quality (% methane fraction) was also measured weekly from an analyzer. Coefficient of variation was computed to ascertain the status of the digestion process. Analysis of variance was used to determine the significant difference in gas yield at p < 0.05. Duncan's New Multiple Range Test at p < 0.05 was used to analyze the difference in gas yield among the various TS concentrations of the slurries investigated. The results indicate that biogas yield is of the order: 5% TS > 10% TS > 15% TS > 20% TS. This result shows that gas yield increases with decreasing TS concentration of the slurries. The ANOVA showed that the gas yield from the various TS % was significantly different (p < 0.05). DNMRT showed that there was significant difference in gas yield from the slurries and wastetypes investigated. Poultry waste slurries had the greatest gas yield (L CH4/kg TS) as the gas yield from the waste types was of the order: Poultry > Piggery > Cattle. The pH of the slurries was of the range 5.5 to 6.8 (weakly acidic). The C:N of the

  17. Biogas from refuse via an earth-sheltered passive solar digester. Final report

    SciTech Connect

    Not Available

    1984-02-01

    As originally conceived, the project involved the design, construction and operation of a test-scale refuse digestion system and alternative energy technology, as an integral component of a planned comprehensive waste management system based on the concept of recycling and resource recovery. Specific technologies employed in the digestion system included aerobic composting and anaerobic fermentation. System inputs included non-recycleable organic refuse (paper, food wastes, etc.) and septage (septic tank sludge), both of which represent disposal problems for many North American communities, and heat. Anticipated system outputs were biogas (50 to 60% methane), a premium fuel, and compostable sludge, a potential soil amendment-fertilizer. Projected net energy output was enhanced by incorporating biological feedstock preheating, earth sheltering, passive solar heating, and sludge heat recovery into the project design. The purpose of the project was to demonstrate the economic and environmental viability of this system versus competing waste-to-energy technologies. Due primarily to institutional barriers and related factors, the project did not progress to the point of enabling the stated purpose to be demonstrated.

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

    SciTech Connect

    Fountoulakis, M.S.; Petousi, I.; Manios, T.

    2010-10-15

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

  19. Rural biogas technology: effect of digester pressure on gas rate and composition

    SciTech Connect

    Hamad, M.A.; Abdel, Dayem, A.M.; El-Halwagi, M.M.

    1983-01-01

    The effect of digester pressure on gas rate and composition was studied using an experimental Chinese-type digester of 5 m/sup 3/ volume. Water buffalo dung was used as feedstock and was fermented at 40 days retention time. The increase in digester pressure was accompanied by a decrease in the amount of biogas produced. However, this decrease was partially compensated for by the increase in methane content. The latter may be attributed to the transfer of carbon dioxide from the gas phase to the liquid phase. The remainder of the noted decrease in the obtained gas amount was related to the increase of the nonconfined amount of slurry in the outlet chamber. Thus, it can be concluded that the initial amount of gas liberated was not a direct consequence of varying the digester pressure. A modified design for the outlet chamber is proposed. Such modification is anticipated to decrease the gas losses, partially stabilize the gas pressure and accordingly increase the efficiency of the digester operation as well as the gas combustion process.

  20. Discovery of a meta-stable Al-Sm phase with unknown stoichiometry...

    Office of Scientific and Technical Information (OSTI)

    Discovery of a meta-stable Al-Sm phase with unknown stoichiometry using a genetic algorithm Citation Details In-Document Search Title: Discovery of a meta-stable Al-Sm phase with...

  1. Metal-Organic Frameworks Based on Previously Unknown Zr8/Hf Cubic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Metal-Organic Frameworks Based on Previously Unknown Zr8Hf Cubic Clusters Previous Next List Dawei Feng, Hai-Long Jiang, Ying-Pin Chen, Zhi-Yuan Gu, Zhangwen Wei, and Hong-Cai...

  2. A comparative study of leachate quality and biogas generation in simulated anaerobic and hybrid bioreactors

    SciTech Connect

    Xu, Qiyong; Tian, Ying; Wang, Shen; Ko, Jae Hac

    2015-07-15

    Highlights: • Temporary aeration shortened the initial acid inhibition phase for methanogens. • COD decreased faster in the hybrid bioreactor than that in the anaerobic control. • Methane generations from hybrid bioreactors were 133.4 L/kg{sub vs} and 113.2 L/kg{sub vs}. • MSW settlement increased with increasing the frequency of intermittent aeration. - Abstract: Research has been conducted to compare leachate characterization and biogas generation in simulated anaerobic and hybrid bioreactor landfills with typical Chinese municipal solid waste (MSW). Three laboratory-scale reactors, an anaerobic (A1) and two hybrid bioreactors (C1 and C2), were constructed and operated for about 10 months. The hybrid bioreactors were operated in an aerobic–anaerobic mode with different aeration frequencies by providing air into the upper layer of waste. Results showed that the temporary aeration into the upper layer aided methane generation by shortening the initial acidogenic phase because of volatile fatty acids (VFAs) reduction and pH increase. Chemical oxygen demand (COD) decreased faster in the hybrid bioreactors, but the concentrations of ammonia–nitrogen in the hybrid bioreactors were greater than those in the anaerobic control. Methanogenic conditions were established within 75 d and 60 d in C1 and C2, respectively. However, high aeration frequency led to the consumption of organic matters by aerobic degradation and resulted in reducing accumulative methane volume. The temporary aeration enhanced waste settlement and the settlement increased with increasing the frequency of aeration. Methane production was inhibited in the anaerobic control; however, the total methane generations from hybrid bioreactors were 133.4 L/kg{sub vs} and 113.2 L/kg{sub vs}. As for MSW with high content of food waste, leachate recirculation right after aeration stopped was not recommended due to VFA inhibition for methanogens.

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

    SciTech Connect

    Chen Guangyin; Zheng Zheng; Yang Shiguan; Fang Caixia; Zou Xingxing; Luo Yan

    2010-10-15

    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.

  4. Hydrogen production via reforming of biogas over nanostructured Ni/Y catalyst: Effect of ultrasound irradiation and Ni-content on catalyst properties and performance

    SciTech Connect

    Sharifi, Mahdi; Haghighi, Mohammad; Abdollahifar, Mozaffar

    2014-12-15

    Highlights: • Synthesis of nanostructured Ni/Y catalyst by sonochemical and impregnation methods. • Enhancement of size distribution and active phase dispersion by employing sonochemical method. • Evaluation of biogas reforming over Ni/Y catalyst with different Ni-loadings. • Preparation of highly active and stable catalyst with low Ni content for biogas reforming. • Getting H{sub 2}/CO very close to equilibrium ratio by employing sonochemical method. - Abstract: The effect of ultrasound irradiation and various Ni-loadings on dispersion of active phase over zeolite Y were evaluated in biogas reforming for hydrogen production. X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray, Brunauer–Emmett–Teller, Fourier transform infrared analysis and TEM analysis were employed to observe the characteristics of nanostructured catalysts. The characterizations implied that utilization of ultrasound irradiation enhanced catalyst physicochemical properties including high dispersion of Ni on support, smallest particles size and high catalyst surface area. The reforming reactions were carried out at GHSV = 24 l/g.h, P = 1 atm, CH{sub 4}/CO{sub 2} = 1 and temperature range of 550–850 °C. Activity test displayed that ultrasound irradiated Ni(5 wt.%)/Y had the best performance and the activity remained stable during 600 min. Furthermore, the proposed reaction mechanism showed that there are three major reaction channels in biogas reforming.

  5. Assessment of biogas production from MBT waste under different operating conditions

    SciTech Connect

    Pantini, Sara; Verginelli, Iason; Lombardi, Francesco; Scheutz, Charlotte; Kjeldsen, Peter

    2015-09-15

    Highlights: • BMP test displayed high gas potential generation capacity of MBT waste. • Strong inhibition effects were observed due to ammonia and VFA accumulation. • Waste water content was found as the key parameter limiting gas generation. • First order k-values were determined for different operating conditions. - Abstract: In this work, the influence of different operating conditions on the biogas production from mechanically–biologically treated (MBT) wastes is investigated. Specifically, different lab-scale anaerobic tests varying the water content (26–43% w/w up to 75% w/w), the temperature (from 20 to 25 °C up to 55 °C) and the amount of inoculum have been performed on waste samples collected from a full-scale Italian MBT plant. For each test, the gas generation yield and, where applicable, the first-order gas generation rates were determined. Nearly all tests were characterised by a quite long lag-phase. This result was mainly ascribed to the inhibition effects resulting from the high concentrations of volatile fatty acids (VFAs) and ammonia detected in the different stages of the experiments. Furthermore, water content was found as one of the key factor limiting the anaerobic biological process. Indeed, the experimental results showed that when the moisture was lower than 32% w/w, the methanogenic microbial activity was completely inhibited. For the higher water content tested (75% w/w), high values of accumulated gas volume (up to 150 Nl/kgTS) and a relatively short time period to deplete the MBT waste gas generation capacity were observed. At these test conditions, the effect of temperature became evident, leading to gas generation rates of 0.007 d{sup −1} at room temperature that increased to 0.03–0.05 d{sup −1} at 37 °C and to 0.04–0.11 d{sup −1} at 55 °C. Overall, the obtained results highlighted that the operative conditions can drastically affect the gas production from MBT wastes. This suggests that particular caution

  6. Performance study of LMS based adaptive algorithms for unknown system identification

    SciTech Connect

    Javed, Shazia; Ahmad, Noor Atinah

    2014-07-10

    Adaptive filtering techniques have gained much popularity in the modeling of unknown system identification problem. These techniques can be classified as either iterative or direct. Iterative techniques include stochastic descent method and its improved versions in affine space. In this paper we present a comparative study of the least mean square (LMS) algorithm and some improved versions of LMS, more precisely the normalized LMS (NLMS), LMS-Newton, transform domain LMS (TDLMS) and affine projection algorithm (APA). The performance evaluation of these algorithms is carried out using adaptive system identification (ASI) model with random input signals, in which the unknown (measured) signal is assumed to be contaminated by output noise. Simulation results are recorded to compare the performance in terms of convergence speed, robustness, misalignment, and their sensitivity to the spectral properties of input signals. Main objective of this comparative study is to observe the effects of fast convergence rate of improved versions of LMS algorithms on their robustness and misalignment.

  7. Production of unknown transactinides in asymmetry-exit-channel quasifission reactions

    SciTech Connect

    Adamian, G.G.; Antonenko, N. V.; Zubov, A. S.

    2005-03-01

    Possibilities of production of new isotopes of superheavy nuclei with charge numbers 104-108 in asymmetry-exit-channel quasifission reactions are studied for the first time. The optimal conditions for the synthesis are suggested in this type of reaction. The products of suggested reactions can fill a gap of unknown isotopes between the isotopes of heaviest nuclei obtained in cold and hot complete fusion reactions.

  8. Research on Anaerobic Digestion: Optimization and Scalability of Mixed High-strength Food Processing Wastes for Renewable Biogas Energy

    SciTech Connect

    Yu, Zhongtang; Hitzhusen, Fredrick

    2012-12-27

    This research project developed and improved anaerobic digestion technologies, created a comprehensive Inventory of Ohio Biomass and a database of microorganisms of anaerobic digesters, and advanced knowledge and understanding of the underpinning microbiology of the anaerobic digestion process. The results and finding of this research project may be useful for future development and implementation of anaerobic digesters, especially at livestock farms. Policy makers and investors may also find the information on the biomass availability in Ohio and valuation of energy projects useful in policy making and making of investment decisions. The public may benefit from the information on biogas as an energy source and the potential impact of anaerobic digester projects on their neighborhoods.

  9. Differences in volatile methyl siloxane (VMS) profiles in biogas from landfills and anaerobic digesters and energetics of VMS transformations

    SciTech Connect

    Tansel, Berrin Surita, Sharon C.

    2014-11-15

    Highlights: • In the digester gas, D4 and D5 comprised the 62% and 27% if siloxanes, respectively. • In landfill gas, the bulk of siloxanes were TMSOH (58%) followed by D4 (17%). • Methane utilization may be a possible mechanism for TMSOH formation in the landfills. • The geometric configurations of D4 and D5 molecules make them very stable. - Abstract: The objectives of this study were to compare the types and levels of volatile methyl siloxanes (VMS) present in biogas generated in the anaerobic digesters and landfills, evaluate the energetics of siloxane transformations under anaerobic conditions, compare the conditions in anaerobic digesters and municipal solid waste (MSW) landfills which result in differences in siloxane compositions. Biogas samples were collected at the South District Wastewater Treatment Plant and South Dade Landfill in Miami, Florida. In the digester gas, D4 and D5 comprised the bulk of total siloxanes (62% and 27%, respectively) whereas in the landfill gas, the bulk of siloxanes were trimethylsilanol (TMSOH) (58%) followed by D4 (17%). Presence of high levels of TMSOH in the landfill gas indicates that methane utilization may be a possible reaction mechanism for TMSOH formation. The free energy change for transformation of D5 and D4 to TMSOH either by hydrogen or methane utilization are thermodynamically favorable. Either hydrogen or methane should be present at relatively high concentrations for TMSOH formation which explains the high levels present in the landfill gas. The high bond energy and bond distance of the Si–O bond, in view of the atomic sizes of Si and O atoms, indicate that Si atoms can provide a barrier, making it difficult to break the Si–O bonds especially for molecules with specific geometric configurations such as D4 and D5 where oxygen atoms are positioned inside the frame formed by the large Si atoms which are surrounded by the methyl groups.

  10. GIS keyword | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    Open government map data initiatives in the USA or Canada? IRENA launches global atlas of renewable energy potential more Group members (8) Managers: NickL Recent members:...

  11. Reconstruction of signals with unknown spectra in information field theory with parameter uncertainty

    SciTech Connect

    Ensslin, Torsten A.; Frommert, Mona [Max-Planck-Institut fuer Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching (Germany)

    2011-05-15

    The optimal reconstruction of cosmic metric perturbations and other signals requires knowledge of their power spectra and other parameters. If these are not known a priori, they have to be measured simultaneously from the same data used for the signal reconstruction. We formulate the general problem of signal inference in the presence of unknown parameters within the framework of information field theory. To solve this, we develop a generic parameter-uncertainty renormalized estimation (PURE) technique. As a concrete application, we address the problem of reconstructing Gaussian signals with unknown power-spectrum with five different approaches: (i) separate maximum-a-posteriori power-spectrum measurement and subsequent reconstruction, (ii) maximum-a-posteriori reconstruction with marginalized power-spectrum, (iii) maximizing the joint posterior of signal and spectrum, (iv) guessing the spectrum from the variance in the Wiener-filter map, and (v) renormalization flow analysis of the field-theoretical problem providing the PURE filter. In all cases, the reconstruction can be described or approximated as Wiener-filter operations with assumed signal spectra derived from the data according to the same recipe, but with differing coefficients. All of these filters, except the renormalized one, exhibit a perception threshold in case of a Jeffreys prior for the unknown spectrum. Data modes with variance below this threshold do not affect the signal reconstruction at all. Filter (iv) seems to be similar to the so-called Karhune-Loeve and Feldman-Kaiser-Peacock estimators for galaxy power spectra used in cosmology, which therefore should also exhibit a marginal perception threshold if correctly implemented. We present statistical performance tests and show that the PURE filter is superior to the others, especially if the post-Wiener-filter corrections are included or in case an additional scale-independent spectral smoothness prior can be adopted.

  12. Utilization of high-strength wastewater for the production of biogas as a renewable energy source using hybrid upflow anaerobic sludge blanket (HUASB) reactor

    SciTech Connect

    Shivayogimath, C.B.; Ramanujam, T.K.

    1998-07-01

    Anaerobic digestion of distillery spentwash, a high-strength wastewater, was studied using a hybrid upflow anaerobic sludge blanket (HUASB) reactor for 240 days under ambient conditions. The HUASB reactor combined an open volume in the bottom two-thirds of the reactor for sludge blanket and polypropylene pall rings packing in the upper one-third of the reactor. The aim of the study was to achieve optimum biogas production and waste treatment. Using non-granular anaerobic sewage sludge as seed, the start-up of the HUASB reactor was successfully completed, with the production of active bacterial granules of 1--2 mm size, within 90 days. Examination of the bacterial granules under scanning electron microscope (SEM) revealed that Methanothrix like microorganisms were the dominant species besides Methanosarcina. An organic loading of 24 kg COD/m{sup 3}d at a low hydraulic retention time (HRT) of 6 hours was achieved with 82% reduction in COD. Biogas with high methane content (80%) was produced at these loadings. The specific biogas yield was 0.36 m{sup 3} CH{sub 4}/kg COD. Packing in the upper third of the reactor was very efficient as a gas-solid separator (GSS); and in addition it retained the biomass.

  13. Pilot project of biogas production from pig manure and urine mixture at ambient temperature in Ventanilla (Lima, Peru)

    SciTech Connect

    Ferrer, I. Gamiz, M.

    2009-01-15

    Parque Porcino de Ventanilla has an extension of 840 ha with 2200 farmers dedicated to pig production. There is a lack of services in the area (i.e., water supply, electricity, or waste collection). Anaerobic treatment of pig manure would replace current dumping and incineration, reducing environmental pollution and hazards to public health, as well as providing an organic fertilizer and biogas. The objective of the present work was to study the viability of ambient temperature anaerobic digestion of pig manure diluted in urine, by means of on-site pilot scale reactors. The final goal was to establish design parameters for anaerobic digesters to be implemented; since it was part of a project to improve life conditions for the farmers through the incorporation of better management techniques. Experiments were carried out in a low-cost pilot plant, which consists of three anaerobic digesters (225 L total volume), without heating or agitation, placed in a greenhouse. The start-up of the digestion process was performed with a mixture of temperature adapted pig manure-sludge and fresh rumen, and showed a good performance regardless of the dilution of pig manure with water or urine, which is a key parameter due to the scarcity of water in the area under study.

  14. Role of Definitive Radiation Therapy in Carcinoma of Unknown Primary in the Abdomen and Pelvis

    SciTech Connect

    Kelly, Patrick; Das, Prajnan; Varadhachary, Gauri R.; Fontanilla, Hiral P.; Krishnan, Sunil; Delclos, Marc E.; Jhingran, Anuja; Eifel, Patricia J.; Crane, Christopher H.

    2012-04-01

    Objectives: Carcinoma of unknown primary (CUP) in the abdomen and pelvis is a heterogeneous group of cancers with no standard treatment. Considered by many to be incurable, these patients are often treated with chemotherapy alone. In this study, we determined the effectiveness of radiation therapy in combination with chemotherapy in patients with CUP in the abdomen and pelvis. Patients and Methods: Medical records were reviewed for 37 patients with CUP treated with radiation therapy for disease located in the soft tissues and/or nodal basins of the abdomen and pelvis at University of Texas M.D. Anderson Cancer between 2002 and 2009. All patients underwent chemotherapy, either before or concurrent with radiation therapy. Patients were selected for radiation therapy on the basis of histologic type, disease extent, and prior therapy response. Twenty patients underwent definitive radiation therapy (defined as radiation therapy targeting all known disease sites with at least 45 Gy) and 17 patients underwent palliative radiation therapy. Only 6 patients had surgical resection of their disease. Patient and treatment characteristics were extracted and the endpoints of local disease control, progression-free survival (PFS), overall survival (OS), and treatment-related toxicity incidence were analyzed. Results: The 2-year PFS and OS rates for the entire cohort were 32% and 57%, respectively. However, in patients treated with definitive radiation therapy, the rates were 48% and 76%, and 7 patients lived more than 3 years after treatment with no evidence of disease progression. Nevertheless, radiation-associated toxicity was significant in this cohort, as 40% experienced Grade 2 or higher late toxicities. Conclusions: The use of definitive radiation therapy should be considered in selected patients with CUP in the soft tissues or nodal basins of the abdomen and pelvis.

  15. Current State of Anaerobic Digestion of Organic Wastes in North...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    10012015 ISSN 2196-3010 Keywords anaerobic digestion, biogas, biosolids, fertilizer, food waste, manure, organic waste, renewable energy Abstract With the large volumes of...

  16. Comparison of different procedures to stabilize biogas formation after process failure in a thermophilic waste digestion system: Influence of aggregate formation on process stability

    SciTech Connect

    Kleyboecker, A.; Liebrich, M.; Kasina, M.; Kraume, M.; Wittmaier, M.; Wuerdemann, H.

    2012-06-15

    Highlights: Black-Right-Pointing-Pointer Mechanism of process recovery with calcium oxide. Black-Right-Pointing-Pointer Formation of insoluble calcium salts with long chain fatty acids and phosphate. Black-Right-Pointing-Pointer Adsorption of VFAs by the precipitates resulting in the formation of aggregates. Black-Right-Pointing-Pointer Acid uptake and phosphate release by the phosphate-accumulating organisms. Black-Right-Pointing-Pointer Microbial degradation of volatile fatty acids in the aggregates. - Abstract: Following a process failure in a full-scale biogas reactor, different counter measures were undertaken to stabilize the process of biogas formation, including the reduction of the organic loading rate, the addition of sodium hydroxide (NaOH), and the introduction of calcium oxide (CaO). Corresponding to the results of the process recovery in the full-scale digester, laboratory experiments showed that CaO was more capable of stabilizing the process than NaOH. While both additives were able to raise the pH to a neutral milieu (pH > 7.0), the formation of aggregates was observed particularly when CaO was used as the additive. Scanning electron microscopy investigations revealed calcium phosphate compounds in the core of the aggregates. Phosphate seemed to be released by phosphorus-accumulating organisms, when volatile fatty acids accumulated. The calcium, which was charged by the CaO addition, formed insoluble salts with long chain fatty acids, and caused the precipitation of calcium phosphate compounds. These aggregates were surrounded by a white layer of carbon rich organic matter, probably consisting of volatile fatty acids. Thus, during the process recovery with CaO, the decrease in the amount of accumulated acids in the liquid phase was likely enabled by (1) the formation of insoluble calcium salts with long chain fatty acids, (2) the adsorption of volatile fatty acids by the precipitates, (3) the acid uptake by phosphorus-accumulating organisms and (4

  17. Biogas systems in India

    SciTech Connect

    Lichtman, R.J.

    1983-01-01

    In addition to an analysis of household energy consumption, three scenarios are presented for the economic analysis of energy systems used for cooking, lighting, irrigation, and rice husk-cement manufacture. Digester design and feedstock variations are discussed. Problems such as gas pricing, sociological problems of distribution to diverse ethnic groups, and the complexity of technology transfer are mentioned. (CKK)

  18. The structure of the cyanobactin domain of unknown function from PatG in the patellamide gene cluster

    SciTech Connect

    Mann, Greg; Koehnke, Jesko; Bent, Andrew F.; Graham, Rachael; Houssen, Wael; Jaspars, Marcel; Schwarz-Linek, Uli; Naismith, James H.

    2014-11-14

    The highly conserved domain of unknown function in the cyanobactin superfamily has a novel fold. The protein does not appear to bind the most plausible substrates, leaving questions as to its role. Patellamides are members of the cyanobactin family of ribosomally synthesized and post-translationally modified cyclic peptide natural products, many of which, including some patellamides, are biologically active. A detailed mechanistic understanding of the biosynthetic pathway would enable the construction of a biotechnological toolkit to make novel analogues of patellamides that are not found in nature. All but two of the protein domains involved in patellamide biosynthesis have been characterized. The two domains of unknown function (DUFs) are homologous to each other and are found at the C-termini of the multi-domain proteins PatA and PatG. The domain sequence is found in all cyanobactin-biosynthetic pathways characterized to date, implying a functional role in cyanobactin biosynthesis. Here, the crystal structure of the PatG DUF domain is reported and its binding interactions with plausible substrates are investigated.

  19. Improved Dosimetric and Clinical Outcomes With Intensity-Modulated Radiotherapy for Head-and-Neck Cancer of Unknown Primary Origin

    SciTech Connect

    Chen, Allen M.; Li Baoqing; Farwell, D. Gregory; Marsano, Joseph; Vijayakumar, Srinivasan; Purdy, James A.

    2011-03-01

    Purpose: To compare differences in dosimetric, clinical, and quality-of-life endpoints among a cohort of patients treated by intensity-modulated radiotherapy (IMRT) and conventional radiotherapy (CRT) for head-and-neck cancer of unknown primary origin. Methods and Materials: The medical records of 51 patients treated by radiation therapy for squamous cell carcinoma of the head and neck presenting as cervical lymph node metastasis of occult primary origin were reviewed. Twenty-four patients (47%) were treated using CRT, and 27 (53%) were treated using IMRT. The proportions of patients receiving concurrent chemotherapy were 54% and 63%, respectively. Results: The 2-year estimates of overall survival, local-regional control, and disease-specific survival for the entire patient population were 86%, 89%, and84%, respectively. There were no significant differences in any of these endpoints with respect to radiation therapy technique (p > 0.05 for all). Dosimetric analysis revealed that the use of IMRT resulted in significant improvements with respect to mean dose and V30 to the contralateral (spared) parotid gland. In addition, mean doses to the ipsilateral inner and middle ear structures were significantly reduced with IMRT (p < 0.05 for all). The incidence of severe xerostomia in the late setting was 58% and 11% among patients treated by CRT and IMRT, respectively (p < 0.001). The percentages of patients who were G-tube dependent at 6 months after treatment were 42% and 11%, respectively (p < 0.001). Conclusions: IMRT results in significant improvements in the therapeutic ratio among patients treated by radiation therapy for head-and-neck cancer of unknown primary origin.

  20. Property:OpenEI/Tool/Keyword | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    +, Green Button Apps + Badema + Cleanweb Hackathon +, Boston +, Community Generated + Bioenergy KDF + Energy Efficiency and Renewable Energy (EERE) Tools + Biofuels Techno-Economic...

  1. National Library of Energy : Main View : Search Results for Keyword...

    Office of Scientific and Technical Information (OSTI)

    site. Website Policies and Important Links Search capabilities provided by DOEOSTI Deep Web Technologies Source Status Additional Results Available There are more results...

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

    SciTech Connect

    Martin-Gonzalez, L.; Colturato, L.F.; Font, X.; Vicent, T.

    2010-10-15

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

  3. Efficacy and Toxicity of Chemoradiotherapy Using Intensity-Modulated Radiotherapy for Unknown Primary of Head and Neck

    SciTech Connect

    Sher, David J.; Balboni, Tracy A.; Haddad, Robert I.; Norris, Charles M.; Posner, Marshall R.; Wirth, Lori J.; Goguen, Laura A.; Annino, Donald; Tishler, Roy B.

    2011-08-01

    Purpose: No single standard treatment paradigm is available for head-and-neck squamous cell carcinoma of an unknown primary (HNCUP). Bilateral neck radiotherapy with mucosal axis irradiation is widely used, with or without chemotherapy and/or surgical resection. Intensity-modulated radiotherapy (IMRT) is a highly conformal method for delivering radiation that is becoming the standard of care and might reduce the long-term treatment-related sequelae. We report the Dana-Farber Cancer Institute experience with IMRT-based treatment for HNCUP. Patients and Materials: A retrospective study of all patients treated at the Dana-Farber Cancer Institute for HNCUP with IMRT between August 2004 and January 2009. The primary endpoint was overall survival; the secondary endpoints were locoregional and distant control, and acute and chronic toxicity. Results: A total of 24 patients with HNCUP were included. Of these patients, 22 had Stage N2 disease or greater. All patients underwent neck computed tomography, positron emission tomography-computed tomography, and examination under anesthesia with directed biopsies. Of the 24 patients, 22 received concurrent chemotherapy, and 7 (29%) also underwent induction chemotherapy. The median involved nodal dose was 70 Gy, and the median mucosal dose was 60 Gy. With a median follow-up of 2.1 years, the 2-year actuarial overall survival and locoregional control rate was 92% and 100%, respectively. Only 25% of the patients had Grade 2 xerostomia, although 11 patients (46%) required esophageal dilation for stricture. Conclusion: In a single-institution series, IMRT-based chemoradiotherapy for HNCUP was associated with superb overall survival and locoregional control. The xerostomia rates were promising, but the aggressive therapy was associated with significant rates of esophageal stenosis.

  4. Teleportation of a two-qubit arbitrary unknown state using a four-qubit genuine entangled state with the combination of bell-state measurements

    SciTech Connect

    Dong, Li; Xiu, Xiao-Ming, E-mail: xiuxiaomingdl@126.com [Dalian University of Technology, School of Physics and Optoelectronic Technology (China)] [Dalian University of Technology, School of Physics and Optoelectronic Technology (China); Ren, Yuan-Peng [Bohai University, Higher Professional Technical Institute (China)] [Bohai University, Higher Professional Technical Institute (China); Gao, Ya-Jun [Bohai University, College of Mathematics and Physics (China)] [Bohai University, College of Mathematics and Physics (China); Yi, X. X. [Dalian University of Technology, School of Physics and Optoelectronic Technology (China)] [Dalian University of Technology, School of Physics and Optoelectronic Technology (China)

    2013-01-15

    We propose a protocol transferring an arbitrary unknown two-qubit state using the quantum channel of a four-qubit genuine entangled state. Simplifying the four-qubit joint measurement to the combination of Bell-state measurements, it can be realized more easily with currently available technologies.

  5. Biogas Opportunities Roadmap Progress Report

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    OPPORTUNITIES ROADMAP PROGRESS REPORT USDA - EPA - DOE December 2015 ROADMAP INTRODUCTION 1 ACHIEVEMENTS 1 Policy and Program Achievements 1 Government Agency Achievements 1 Private Industry Achievements 4 Technology Achievements 5 Projects Funded 5 Technology Information Developed, Updated, and Revised 7 Dissemination of Resources and Information for Stakeholders 8 CHALLENGES AND OPPORTUNITIES 9 Challenges 9 Opportunities 11 Sector Trends 11 Stakeholder Engagement 11 Next Steps 13 Coming Soon

  6. Method for measuring dose-equivalent in a neutron flux with an unknown energy spectra and means for carrying out that method

    DOEpatents

    Distenfeld, Carl H.

    1978-01-01

    A method for measuring the dose-equivalent for exposure to an unknown and/or time varing neutron flux which comprises simultaneously exposing a plurality of neutron detecting elements of different types to a neutron flux and combining the measured responses of the various detecting elements by means of a function, whose value is an approximate measure of the dose-equivalent, which is substantially independent of the energy spectra of the flux. Also, a personnel neutron dosimeter, which is useful in carrying out the above method, comprising a plurality of various neutron detecting elements in a single housing suitable for personnel to wear while working in a radiation area.

  7. Radiation Therapy in the Management of Head-and-Neck Cancer of Unknown Primary Origin: How Does the Addition of Concurrent Chemotherapy Affect the Therapeutic Ratio?

    SciTech Connect

    Chen, Allen M.; Farwell, D. Gregory; Lau, Derick H.; Li Baoqing; Luu, Quang; Donald, Paul J.

    2011-10-01

    Purpose: To determine how the addition of cisplatin-based concurrent chemotherapy to radiation therapy influences outcomes among a cohort of patients treated for head-and-neck cancer of unknown primary origin. Methods and Materials: The medical records of 60 consecutive patients treated by radiation therapy for squamous cell carcinoma of the head and neck presenting as cervical lymph node metastasis of occult primary origin were reviewed. Thirty-two patients (53%) were treated by concurrent chemoradiation, and 28 patients (47%) were treated by radiation therapy alone. Forty-five patients (75%) received radiation therapy after surgical resection, and 15 patients (25%) received primary radiation therapy. Thirty-five patients (58%) were treated by intensity-modulated radiotherapy. Results: The 2-year estimates of overall survival, local-regional control, and progression-free survival were 89%, 89%, and 79%, respectively, among patients treated by chemoradiation, compared to 90%, 92%, and 83%, respectively, among patients treated by radiation therapy alone (p > 0.05, for all). Exploratory analysis failed to identify any subset of patients who benefited from the addition of concurrent chemotherapy to radiation therapy. The use of concurrent chemotherapy was associated with a significantly increased incidence of Grade 3+ acute and late toxicity (p < 0.001, for both). Conclusions: Concurrent chemoradiation is associated with significant toxicity without a clear advantage to overall survival, local-regional control, and progression-free survival in the treatment of head-and-neck cancer of unknown primary origin. Although selection bias cannot be ignored, prospective data are needed to further address this question.

  8. Proposed Plan for the R-Area Bingham Pump Outage Pits (643-8G, -9G, -10G) and R-Area Unknown Pits No.1, No.2, No.3 (RUNK-1, -2, -3)

    SciTech Connect

    Mundy, S.

    2002-07-31

    The purpose of this proposed plan is to describe the preferred remedial alternative for the R-Area Bingham Pump Outage Pits (R BPOPs) and the R-Area Unknowns (RUNKs) operable unit (OU) and to provide for public involvement in the decision-making process.

  9. Biogas and Biomass to Energy Grant Program

    Energy.gov [DOE]

    The Renewable Energy Resources Program (RERP) promotes the development of renewable energy in Illinois. This program is funded by the Renewable Energy Resources Trust Fund (RERTF)-- the state's...

  10. Biomass/Biogas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    may include: * Municipal solid waste located adjacent to urban centers * Dedicated energy crops * Manure * Vegetable crops * Liquid food processing wastes Retrieved from...

  11. BIOENERGIZEME INFOGRAPHIC CHALLENGE: What is Biogas?

    Office of Energy Efficiency and Renewable Energy (EERE)

    This infographic was created by students from Sparks HS in Sparks, NV, as part of the U.S. Department of Energy-BioenergizeME Infographic Challenge. The BioenergizeME Infographic Challenge...

  12. City of Tulare Renewable Biogas Fuel Cell Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    C C i i t t y y o o f f T T u u l l a a r r e e R R e e n n e e w w a a b b l l e e B B i i o o g g a a s s F F u u e e l l C C e e l l l l P P r r o o j j e e c c t t G G o o L L o o c c a a l l : : M M a a x x i i m m i i z z i i n n g g Y Y o o u u r r L L o o c c a a l l R R e e n n e e w w a a b b l l e e R R e e s s o o u u r r c c e e s s W W i i t t h h F F u u e e l l C C e e l l l l s s A A u u g g u u s s t t 1 1 6 6 , , 2 2 0 0 1 1 1 1 P P r r e e s s e e n n t t a a t t i i o o n n

  13. Biogas and Fuel Cells Workshop Summary Report: Proceedings from...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    facilities that generate or process large amounts of organic waste, including large biofuel production facilities (biorefineries). june2012biogasworkshopreport.pdf More...

  14. Bio-Gas Technologies, LLC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    wholesale;Engineeringarchitecturaldesign;Installation;Investmentfinances;Maintenance and repair;Manufacturing Phone Number: 419-663-8000 Website: www.biogastech.com...

  15. Gender Mainstreaming Guide for the Africa Biogas Partnership...

    OpenEI (Open Energy Information) [EERE & EIA]

    Focus Area: Renewable Energy, Biomass Topics: Policiesdeployment programs Resource Type: Lessons learnedbest practices Website: www.energia.orgfileadminfilesmediapubs...

  16. Biogas, once flared, fuels cogen plant serving two hosts

    SciTech Connect

    Johnson, J.K.; McRae, C.L.

    1995-04-01

    This article reports that digester gas from a wastewater treatment plant meets up to 40% of the fuel needs of this cogenerator. Steam is exported for heating the treatment plant`s digesters and for ice production by a second steam host. The Carson Ice-Gen Project promises to enhance the reliability of electric service to the Sacramento Regional Waste water Treatment Plant (SRWTP), to prevent effluent discharges to nearby water ways during power disruptions, and to reduce air emissions associated with flaring of digester gas. The project comprises a 95-MW combined-cycle cogeneration powerplant and a 300-ton/day ice-production plant. The powerplant features twin LM 6000 gas turbines (GTs). One, used as a 53-MW base-load unit, is paired with a heat-recovery steam generator (HRSG) feeding an extraction/condensing steam turbine/generator (STG). The other GT is used as a 42-MW, simple-cycle peaking unit. Primary fuel is natural gas, which is supplemented by digester gas that is currently being flared at the wastewater treatment plant. Export steam extracted from the STG is used to heat the digesters and to drive ammonia compressors at the ice plant. Steam is also used on-site to chill water in absorption chillers that cool the GT inlet air for power augmentation.

  17. Kinetic model for anaerobic digestion of biogas biological sludge

    SciTech Connect

    Pavlostathis, S.G.; Gossett, J.M.

    1986-10-01

    The principal objective of this study was the development and evaluation of a comprehensive kinetic model capable of predicting digester performance when fed biological sludge. Preliminary conversion mechanisms such as cell deaths, lysis, and hydrolysis responsible for rendering viable biological sludge organisms to available substrate were studied in depth. The results of this study indicate that hydrolysis of the dead, particulate biomass - primarily consisting of protein - is the slowest step, and therefore kinetically controls the overall process of an anaerobic digestion of biological sludge. A kinetic model was developed which could accurately describe digester performance and predict effluent quality.

  18. Expanding the Use of Biogas with Fuel Cell Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    & Commercial Petroleum 37% Natural Gas ... fuel cell patents issued in 2011. * Nearly double the second place holder, solar, which ... reduction for FCEVs (vs. today's gasoline ...

  19. Renewable Hydrogen Potential from Biogas in the United States

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... reforming tonne metric ton VS volatile solids WIP waste in ... from imported petroleum when used in the ... market introduction of fuel cell electric vehicles (FCEVs). ...

  20. Biogas Potential in the United States (Fact Sheet), Energy Analysis...

    Alternative Fuels and Advanced Vehicles Data Center

    In addition, it can be upgraded to pure methane- also called biomethane or renewable natural gas-by removing water, carbon dioxide, hydrogen sulfde, and other trace elements. This ...

  1. Discovering a previously unknown mechanism that halts solar eruptions...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... and a "potential magnetic field" like the ones that enclose the rope in the solar corona. Potential magnetic field This potential magnetic field is composed of magnetic ...

  2. Property:Plants with Unknown Planned Capacity | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Colorado Plateau Geothermal Region + 0 + Southern Rockies Geothermal Region + 0 + T Transition Zone Geothermal Region + 1 + W Walker-Lane Transition Zone Geothermal Region + 0 + Y...

  3. Methods for characterizing, classifying, and identifying unknowns in samples

    DOEpatents

    Grate, Jay W [West Richland, WA; Wise, Barry M [Manson, WA

    2002-01-01

    Disclosed is a method for taking the data generated from an array of responses from a multichannel instrument, and determining the characteristics of a chemical in the sample without the necessity of calibrating or training the instrument with known samples containing the same chemical. The characteristics determined by the method are then used to classify and identify the chemical in the sample. The method can also be used to quantify the concentration of the chemical in the sample.

  4. Methods for characterizing, classifying, and identifying unknowns in samples

    DOEpatents

    Grate, Jay W.; Wise, Barry M.

    2003-08-12

    Disclosed is a method for taking the data generated from an array of responses from a multichannel instrument, and determining the characteristics of a chemical in the sample without the necessity of calibrating or training the instrument with known samples containing the same chemical. The characteristics determined by the method are then used to classify and identify the chemical in the sample. The method can also be used to quantify the concentration of the chemical in the sample.

  5. Microbes in Thawing Permafrost: The Unknown Variable in the Climate...

    Office of Scientific and Technical Information (OSTI)

    has been continuously frozen for at least 2 years), our understanding of the diversity of microbial life in this extreme habitat is surprisingly limited. Taking into account the...

  6. Microbes in thawing permafrost: the unknown variable in the climate...

    Office of Scientific and Technical Information (OSTI)

    and Biological Problems in Soil Science, Russian Academy of Sciences U.S. Department of Energy, Joint Genome Institute Bob L ORNL Alfred Wegener Institute for Polar and Marine...

  7. St. Petersburg, FL: Vehicle Use of Recycled Natural Gas Derived...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (1.58 MB) More Documents & Publications Biogas Opportunities Roadmap CX-010223: Categorical Exclusion Determination Biogas Opportunities Roadmap Progress Report

  8. Exploitation of olive mill wastewater and liquid cow manure for biogas production

    SciTech Connect

    Dareioti, Margarita A.; Dokianakis, Spyros N.; Stamatelatou, Katerina; Zafiri, Constantina; Kornaros, Michael

    2010-10-15

    Co-digestion of organic waste streams is an innovative technology for the reduction of methane/greenhouse gas emissions. Different organic substrates are combined to generate a homogeneous mixture as input to the anaerobic reactor in order to increase process performance, realize a more efficient use of equipment and cost-sharing by processing multiple waste streams in a single facility. In this study, the potential of anaerobic digestion for the treatment of a mixture containing olive mill wastewater (OMW) and liquid cow manure (LCM) using a two-stage process has been evaluated by using two continuously stirred tank reactors (CSTRs) under mesophilic conditions (35 {sup o}C) in order to separately monitor and control the processes of acidogenesis and methanogenesis. The overall process was studied with a hydraulic retention time (HRT) of 19 days. The digester was continuously fed with an influent composed (v/v) of 20% OMW and 80% LCM. The average removal of dissolved and total COD was 63.2% and 50%, respectively. The volatile solids (VS) removal was 34.2% for the examined mixture of feedstocks operating the system at an overall OLR of 3.63 g CODL{sub reactor}{sup -1}d{sup -1}. Methane production rate at the steady state reached 0.91 L CH{sub 4}L{sub reactor}{sup -1}d{sup -1} or 250.9 L CH{sub 4} at standard temperature and pressure conditions (STP) per kg COD fed to the system.

  9. Novel Sorbent to Clean Biogas for Fuel Cell Combined Heat and Power

    Office of Energy Efficiency and Renewable Energy (EERE)

    With their clean and quiet operation, fuel cells represent a promising means of implementing small-scale distributed power generation in the future. Waste heat from the fuel cell can be harnessed...

  10. Removal of hydrogen sulfide from waste treatment plant biogas using the apollo scrubber

    SciTech Connect

    Smith, J.W.; Burrowes, P.A.; Gupta, A.; Walton, P.S.; Meffe, S.

    1996-12-31

    The removal of hydrogen sulfide and other sulphur compounds from anaerobic digester gas streams prior to their use as fuel for boilers, stationary engines, and cogeneration units minimizes corrosion problems and reduces sulfur emission loadings. A research program at the Department of Chemical Engineering and Applied Chemistry, University of Toronto in the 1980`s demonstrated the use of a modified flotation cell for the absorption of hydrogen sulfide from a gas stream and its catalytic oxidation to sulfur. The essence of the technology was a proprietary gas liquid contactor which provided very high mass transfer rates at the interface. A bench scale contactor developed at the university achieved hydrogen sulfide removal efficiencies of over 99.9% at atmospheric pressure. A demonstration unit for digester gas scrubbing applications was designed, fabricated, and then installed and evaluated at the Metropolitan Toronto Works Department - Main Treatment Plant (MTP).

  11. Biogas management by controlled feeding and heating of a dairy manure digester

    SciTech Connect

    Chayovan, S.

    1984-01-01

    Gas production dynamics were investigated using laboratory scale digesters fed daily with dairy manure and operated both at constant temperature and with imposed temperature fluctuations of +/-3.3/sup 0/C about a mean of 35.8/sup 0/C. At constant temperature, a 14-liter control digester with a detention time of 19 days, fed with manure diluted to 25% and blended, behaved similarly to two 3-liter digesters fed hole manure at a detection time of 15 days. A second 14-liter digester fed with the diluted manure was operated with three phase relations between the 24 hour temperature cycle and the pulse feeding time. The higher the temperature at the time of feeding, the higher the peak gas production, up to 1.8 times the control. Gradually increasing the temperature after feeding results in sustained high gas production until the most rapidly degradable material is consumed. In all cases digester operation was stable as indicated by pH, alkalinity and total daily gas production. A mathematical model based on three substrate fractions having each first order kinetics and the Arrhenius temperature relationship successfully predicted gas production dynamics as long as hydrolysis remained the rate limiting step and the volatile acid pool did not change rapidly. Results show that gas storage can be reduced as much as 52% using managed heating and feeding for a situation in which gas is productively utilized for only eight hours of the day.

  12. LA-UR-12-22318

    Office of Scientific and Technical Information (OSTI)

    PAR keyword enhanced New keyword LOC New keyword LOC New keyword DAT Benchmarking (NUSTLGoldhagen collaboration) Atmosphere (primary spectra, soon) ...

  13. Backscattering spectrometry device for identifying unknown elements present in a workpiece

    DOEpatents

    Doyle, Barney L.; Knapp, James A.

    1991-01-01

    A backscattering spectrometry method and device for identifying and quantifying impurities in a workpiece during processing and manufacturing of that workpiece. While the workpiece is implanted with an ion beam, that same ion beam backscatters resulting from collisions with known atoms and with impurities within the workpiece. Those ions backscatter along a predetermined scattering angle and are filtered using a self-supporting filter to stop the ions with a lower energy because they collided with the known atoms of the workpiece of a smaller mass. Those ions which pass through the filter have a greater energy resulting from impact with impurities having a greater mass than the known atoms of the workpiece. A detector counts the number and measures the energy of the ions which pass through the filter. From the energy determination and knowledge of the scattering angle, a mass calculation determines the identity, and from the number and solid angle of the scattering angle, a relative concentration of the impurity is obtained.

  14. Two-color X-rays Give Scientists 3-D View of the Unknown | U...

    Office of Science (SC)

    with a pair of precisely tuned X-ray laser pulses of different colors, or photon energies. ... photocathode with a train of two laser pulses separated in time by a few picoseconds. ...

  15. The crossing statistic: dealing with unknown errors in the dispersion of Type Ia supernovae

    SciTech Connect

    Shafieloo, Arman; Clifton, Timothy; Ferreira, Pedro E-mail: tclifton@astro.ox.ac.uk

    2011-08-01

    We propose a new statistic that has been designed to be used in situations where the intrinsic dispersion of a data set is not well known: The Crossing Statistic. This statistic is in general less sensitive than χ{sup 2} to the intrinsic dispersion of the data, and hence allows us to make progress in distinguishing between different models using goodness of fit to the data even when the errors involved are poorly understood. The proposed statistic makes use of the shape and trends of a model's predictions in a quantifiable manner. It is applicable to a variety of circumstances, although we consider it to be especially well suited to the task of distinguishing between different cosmological models using type Ia supernovae. We show that this statistic can easily distinguish between different models in cases where the χ{sup 2} statistic fails. We also show that the last mode of the Crossing Statistic is identical to χ{sup 2}, so that it can be considered as a generalization of χ{sup 2}.

  16. Discovering the Unknown: Improving Detection of Novel Species and Genera from Short Reads

    DOE PAGES [OSTI]

    Rosen, Gail L.; Polikar, Robi; Caseiro, Diamantino A.; Essinger, Steven D.; Sokhansanj, Bahrad A.

    2011-01-01

    High-throughput sequencing technologies enable metagenome profiling, simultaneous sequencing of multiple microbial species present within an environmental sample. Since metagenomic data includes sequence fragments (“reads”) from organisms that are absent from any database, new algorithms must be developed for the identification and annotation of novel sequence fragments. Homology-based techniques have been modified to detect novel species and genera, but, composition-based methods, have not been adapted. We develop a detection technique that can discriminate between “known” and “unknown” taxa, which can be used with composition-based methods, as well as a hybrid method. Unlike previous studies, we rigorously evaluate all algorithms for theirmore » ability to detect novel taxa. First, we show that the integration of a detector with a composition-based method performs significantly better than homology-based methods for the detection of novel species and genera, with best performance at finer taxonomic resolutions. Most importantly, we evaluate all the algorithms by introducing an “unknown” class and show that the modified version of PhymmBL has similar or better overall classification performance than the other modified algorithms, especially for the species-level and ultrashort reads. Finally, we evaluate theperformance of several algorithms on a real acid mine drainage dataset.« less

  17. Microbes in Thawing Permafrost: The Unknown Variable in the Climate Change Equation

    SciTech Connect

    Graham, David E; Wallenstein, Matthew D; Vishnivetskaya, T.; Waldrop, Mark P.; Phelps, Tommy Joe; Pfiffner, Susan M.; Onstott, T. C.; Whyte, Lyle; Rivkina, Elizaveta; Gilichinsky, David A; Elias, Dwayne A; Mackelprang, Rachel; Verberkmoes, Nathan C; Hettich, Robert {Bob} L; Wagner, Dirk; Wullschleger, Stan D; Jansson, Janet

    2012-01-01

    Considering that 25% of Earth's terrestrial surface is underlain by permafrost (ground that has been continuously frozen for at least 2 years), our understanding of the diversity of microbial life in this extreme habitat is surprisingly limited. Taking into account the total mass of perennially frozen sediment (up to several hundred meters deep), permafrost contains a huge amount of buried, ancient organic carbon (Tarnocai et al., 2009).

  18. Microbes in thawing permafrost: the unknown variable in the climate change equation

    SciTech Connect

    Graham, David E; Wallenstein, Matthew D; Vishnivetskaya, T.; Waldrop, Mark P.; Phelps, Tommy Joe; Pfiffner, Susan M.; Onstott, T. C.; Whyte, Lyle; Rivkina, Elizaveta; Gilichinsky, David A; Elias, Dwayne A; Mackelprang, Rachel; Verberkmoes, Nathan C; Hettich, Robert {Bob} L; Wagner, Dirk; Wullschleger, Stan D; Jansson, Janet

    2012-01-01

    Considering that 25% of Earth s terrestrial surface is underlain by permafrost (ground that has been continuously frozen for at least 2 years), our understanding of the diversity of microbial life in this extreme habitat is surprisingly limited. Taking into account the total mass of perennially frozen sediment (up to several hundred meters deep), permafrost contains a huge amount of buried, ancient organic carbon (Tarnocai et al., 2009). In addition, permafrost is warming rapidly in response to global climate change (Romanovsky et al., 2010), potentially leading to widespread thaw and a larger, seasonally thawed soil active layer. This concern has prompted the question: will permafrost thawing lead to the release of massive amounts of carbon dioxide (CO2) and methane (CH4) into the atmosphere? This question can only be answered by understanding how the microbes residing in permafrost will respond to thaw, through processes such as respiration, fermentation, methanogenesis and CH4 oxidation (Schuur et al., 2009). Predicting future carbon fluxes is complicated by the diversity of permafrost environments, ranging from high mountains, southern boreal forests, frozen peatlands and Pleistocene ice complexes (yedoma) up to several hundred meters deep, which vary widely in soil composition, soil organic matter (SOM) quality, hydrology and thermal regimes (Figure 1). Permafrost degradation can occur in many forms: thaw can progress downward from seasonally-thawed active layer soils in warming climates or laterally because of changes in surface or groundwater flow paths (Grosse et al., 2011). Permafrost degradation can sometimes lead to dramatic changes in ecosystem structure and function

  19. Biogreen Energy Systems Pvt Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biogreen makes steam turbines, biogas engines, and converts kitchen waste into methane rich biogas. Coordinates: 18.52671, 73.8616 Show Map Loading map......

  20. Feasibility Study for the Formation of a Renewable Energy Tribal...

    Office of Environmental Management (EM)

    ... and Technology Assessment Wind Biogas Biodiesel Solar Detailed Reservation Load Profile ... Wind Solar Biogas Biodiesel 7 Legal Analysis 13 Participate in Tribal Energy Program ...

  1. World's First Tri-Generation Fuel Cell and Hydrogen Fueling Station...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The system runs on natural gas and biogas generated by the Orange County Sanitation ... out the tri-generation facility that uses biogas from Orange County Sanitation District's ...

  2. EERE Success Story-World's First Tri-Generation Fuel Cell and...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The system runs on natural gas and biogas generated by the Orange County Sanitation ... out the tri-generation facility that uses biogas from Orange County Sanitation District's ...

  3. Renewable Energy Deployment Projects for Forest County Potawatomi...

    Energy Saver

    through the deployment of a biogas generation facility and solar photovoltaic (PV) system. ... FCPC developed a 2-megawatt anaerobic digestion and biogas generation facility. ...

  4. Secretary Chu Announces More Than $20.5 million for Community...

    Energy Saver

    ... heating, cooling and electricity; a biogas digester and 150 kW generation facility; ... processing waste with sewage to produce biogas with estimated power recovery of 1 - 3 ...

  5. Energy Policy: National Assessments and Tribal Actions

    Energy Saver

    2011) * Milwaukee Biodigester and Biogas Facility (completed 2014) * Community- ... Milwaukee Biodigester and Biogas Facility 2014 13 * 2.0 megawatt anaerobic biodigester and ...

  6. Dubuque, Iowa A White House Climate Action Champions Case Study

    Energy.gov [DOE] (indexed site)

    ... In 2012, the City of Dubuque partnered with local engineering and biogas production ... Combined Heat & Power The City partnered with Unison Solutions, a Dubuque-based biogas ...

  7. Energy Department's Hospital Energy Alliance Helps Partner Save...

    Energy Saver

    Gundersen is investing in renewable energy solutions, including a biogas generator that ... Gunderson is even investing in a biogas generator that uses methane from a local landfill ...

  8. Forest County Potawatomi Tribe Cuts Emissions, Promotes Green...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    that includes the installation of solar, biogas, and biomass energy systems to heat, ... of a 2-MW anaerobic digester and biogas generation facility in Milwaukee that ...

  9. Microsoft PowerPoint - Forest County Potawatomi Project Greenfire

    Office of Environmental Management (EM)

    2.0 megawatt anaerobic biodigester and biogas facility located near Potawatomi Bingo ... for stable quality We Energies Biogas Tariff - Power Purchase Agreement ...

  10. Energy Department Announces $13.4 Million to Develop Advanced...

    Energy Saver

    efforts on the efficient conversion of biogas (a mixture of gases generated from the ... to develop a conversion process demonstrating the production of muconic acid from biogas. ...

  11. Industrial Assessment Centers Identifying Energy Savings in Water...

    Energy.gov [DOE] (indexed site)

    powered by biogas. * Green Power Partnership - Supports and recognizes water utilities (and others) using electricity produced on-site from resources such as biogas, wind and ...

  12. Forest County Potawatomi Recognized for Renewable Energy Achievements...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    biogas generation facility converts food waste into electricity to power 1,500 homes. Photo from Forest County Potawatomi Community. A 2-megawatt anaerobic digester and biogas ...

  13. DOE Supports Renewable Energy Deployment Projects for Forest...

    Energy Saver

    through the deployment of a biogas generation facility and solar photovoltaic system. ... the Community developed a 2-megawatt anaerobic digestion and biogas generation facility. ...

  14. Clean Energy Projects Helping Wisconsin Tribe Achieve Sustainability...

    Energy Saver

    digester to convert food waste into biogas; An LED lighting project at the tribe's ... Related Articles A 2-megawatt anaerobic digester and biogas generation facility converts ...

  15. Pathway to Fuel Cell Deployment--The 3rd Party Transaction: A...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Biogas Markets and Federal Policy Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Biogas Technologies ...

  16. Panel 4, Hydrogen Energy Storage Policy Considerations

    Energy.gov [DOE] (indexed site)

    COASTAL SYSTEM (120 MMCFD) VALLEY SYSTEM (150 MMCFD) RNG Pipeline and Storage Pathways WWTP Biogas Collection Organic Matter Landfill Biogas Collection Gasification 22% Energy Loss ...

  17. Enhanced Anaerobic Digestion and Hydrocarbon Precursor Production

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    digestion of biosolids to produce biogas with 90% methane content and hydrogen ... 2) Enables sustainable production of biogas that is considered as a cellulosic ...

  18. Renewable Electricity Generation and Delivery at the Sacramento...

    Energy Saver

    (CEC), helped build a solar power system, biogas generation from waste systems, and ... facility completed construction on a biogas enhancement facility that co-digests ...

  19. Bioenergy Technologies Office Announces Notice of Intent for...

    Energy.gov [DOE] (indexed site)

    Pilot-scale production of biofuels from high impact cellulosic, algal, or biogas feedstocks Demonstration-scale production of biofuels from high impact cellulosic, algal, or biogas ...

  20. Energy Department Works with Sacramento Municipal Utility District...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (CEC), helped build a solar power system, biogas generation from waste systems, and ... waste (FPW), such as off-specification soda pop, with sewage to generate biogas. ...

  1. Quil Ceda Power BioBio-Gas Project

    Energy Saver

    the feasibility of constructing a regional biogas plant that would run on manure from a regional biogas plant that would run on manure from local dairies. local dairies. ...

  2. Energiefeld Bayern GmbH Co KG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    & Co KG Place: Mnchen, Bavaria, Germany Zip: 81539 Product: JV between Schmack Biogas and Erdgas Suedbayern to constructown biogas plants and market electricity directly....

  3. Erich Stallkamp ESTA GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Lower Saxony, Germany Zip: 49413 Product: Stallkamp provides equipment related to biogas and sewage technology as well as whole biogas and sewage plants. Coordinates:...

  4. Bio Gas Technologies LTd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gas Technologies LTd Jump to: navigation, search Name: Bio-Gas Technologies LTd Place: Norwalk, Ohio Zip: 44857 Sector: Renewable Energy Product: Bio-gas Technologies is involved...

  5. Nuclear forensic analysis of an unknown uranium ore concentrate sample seized in a criminal investigation in Australia

    DOE PAGES [OSTI]

    Keegan, Elizabeth; Kristo, Michael J.; Colella, Michael; Robel, Martin; Williams, Ross; Lindvall, Rachel; Eppich, Gary; Roberts, Sarah; Borg, Lars; Gaffney, Amy; et al

    2014-04-13

    In early 2009, a state policing agency raided a clandestine drug laboratory in a suburb of a major city in Australia. While searching the laboratory, they discovered a small glass jar labelled “Gamma Source” and containing a green powder. The powder was radioactive. This paper documents the detailed nuclear forensic analysis undertaken to characterize and identify the material and determine its provenance. Isotopic and impurity content, phase composition, microstructure and other characteristics were measured on the seized sample, and the results were compared with similar material obtained from the suspected source (ore and ore concentrate material). While an extensive rangemore » of parameters were measured, the key ‘nuclear forensic signatures’ used to identify the material were the U isotopic composition, Pb and Sr isotope ratios, and the rare earth element pattern. These measurements, in combination with statistical analysis of the elemental and isotopic content of the material against a database of uranium ore concentrates sourced from mines located worldwide, led to the conclusion that the seized material (a uranium ore concentrate of natural isotopic abundance) most likely originated from Mary Kathleen, a former Australian uranium mine.« less

  6. Nuclear forensic analysis of an unknown uranium ore concentrate sample seized in a criminal investigation in Australia

    SciTech Connect

    Keegan, Elizabeth; Kristo, Michael J.; Colella, Michael; Robel, Martin; Williams, Ross; Lindvall, Rachel; Eppich, Gary; Roberts, Sarah; Borg, Lars; Gaffney, Amy; Plaue, Jonathan; Wong, Henri; Davis, Joel; Loi, Elaine; Reinhard, Mark; Hutcheon, Ian

    2014-04-13

    In early 2009, a state policing agency raided a clandestine drug laboratory in a suburb of a major city in Australia. While searching the laboratory, they discovered a small glass jar labelled “Gamma Source” and containing a green powder. The powder was radioactive. This paper documents the detailed nuclear forensic analysis undertaken to characterize and identify the material and determine its provenance. Isotopic and impurity content, phase composition, microstructure and other characteristics were measured on the seized sample, and the results were compared with similar material obtained from the suspected source (ore and ore concentrate material). While an extensive range of parameters were measured, the key ‘nuclear forensic signatures’ used to identify the material were the U isotopic composition, Pb and Sr isotope ratios, and the rare earth element pattern. These measurements, in combination with statistical analysis of the elemental and isotopic content of the material against a database of uranium ore concentrates sourced from mines located worldwide, led to the conclusion that the seized material (a uranium ore concentrate of natural isotopic abundance) most likely originated from Mary Kathleen, a former Australian uranium mine.

  7. Search | Y-12 National Security Complex

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Search / Search Search Enter your keywords Search

  8. State-of-the-art report on methane fermentation of biomass

    SciTech Connect

    Woods, S.L.; Vause, K.H.; Skrinde, R.T.

    1980-09-01

    Research and development on biogas have emphasized technologies for expediting natural methane generation from anaerobic digestion of biomass. This indepth study reviews the status of biogas technology in developing countries and assesses the feasibility and desirability of expanding biogas production. First, based on an extensive review of the literature, the principal technical, social, economic, and environmental issues associated with methane production from farm-and feedlot-scale biogas plants and from marine biomass, urban refuse, and landfill are delineated. The microbiological processes underlying anaerobic digestion and the influences of various environmental factors (e.g., mixing, heating, toxicity, pH, retention time, nutrients) on the digestion process are then described. Raw materials available for biogas, different biogas plant designs (e.g., Chinese, Indian, Philippine, and bag), and the maintenance, operation, and safety of biogas plants are discussed. Next, the composition, fuel value, and processing of biogas are examined; attention is also given to the uses of sludge by-products. The ecological, health, and sociocultural implications of constructing and operating biogas plants in developing countries are reviewed and the status of biogas technology is described. The authors conclude that in both developed and developing countries the energy value obtained through biogas generation is only slightly greater than the costs involved. Thus, a major factor in implementing biogas projects is reclamation of by-products for animal feed and fertilizer. In rural areas where kerosene is expensive and labor inexpensive, a very simple biogas system prod

  9. Energy Department Applauds World's First Fuel Cell and Hydrogen...

    Energy.gov [DOE] (indexed site)

    The Fountain Valley tri-generation fuel cell and hydrogen energy station uses biogas from ... to utilize multiple feedstocks, such as biogas and natural gas, to produce power and ...

  10. Albany, OR * Anchorage, AK * Morgantown, WV * Pittsburgh, PA...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Industries that utilize natural gas, gasifier syngas, biogas, landfill gas, or any other ... For fuel-flexible power systems, in which the supply gas includes syngas or biogas as well ...

  11. Panel 3, Necessary Conditions for Hydrogen Energy Storage Projects...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    the link HES (Power-to-Gas) Solution Biogas Methanation FCEVs Conventional Fuels ... Refining) RH2 FCEV Fueling H2 in NG Blend Biogas Methanation RNG (Methanation) Sell H2 ...

  12. Lessons Learned with Early PV Plant Integration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... whether it's PV, wind, geothermal, hydro, biogas - or you might have smooth parallel ... For example, we had a situation last year where we installed a dedicated TAP for a biogas ...

  13. Towards a sustainable paradigm of waste-to-energy process: Enhanced...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    amendment material to sequester CO2 from biogas in the digester. The biochar-amended digesters achieved average methane content in biogas of up to 92.3% and 79.0%, corresponding ...

  14. High Temperature Fuel Cell Tri-Generation of Power, Heat & H2...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tri-Generation of Power, Heat & H2 from Biogas High Temperature Fuel Cell Tri-Generation of Power, Heat & H2 from Biogas Success story about using waste water treatment gas for ...

  15. Life-Cycle Analysis Shows Potential for Almost 70% Greenhouse...

    Office of Environmental Management (EM)

    non-lipid components of the algae are converted to biogas. The biogas is used for renewable heat and electricity to power the conversion process of the lipids to renewable diesel. ...

  16. MEMORANDUM FOR: JOHN CONTI ASSISTANT ADMINISTRATOR FOR ENERGY...

    Gasoline and Diesel Fuel Update

    to exclude the renewable fuel oil and biogas representation in the RFS for AEO2016. ... The conversation expanded to biogas and compressed NG in long-haul heavy duty vehicles, to ...

  17. Lab-Corps Cohort 3 Teams | Department of Energy

    Office of Environmental Management (EM)

    organic wastes into biogas, a mix of CH4 and CO2. AD is used to reduce waste volumes. Our additive technology increases digestion rates and the energy content of the biogas. ...

  18. Transcript of Tribal Energy and Economic Development August Webinar...

    Office of Environmental Management (EM)

    ... And basically this is most important if you're going to have like a biomass or biogas ... a biomass or biogas plant - where there might be discharges where there's contact water. ...

  19. Resource Recovery OpportunitiesatAmericas Water Resource Recovery...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    recovery at WRRF's in the next decade Biogas with Addition of Fats, Oil & Grease (FOG) 50 dry tonsday solids > 600,000 ft 3 day of biogas 4,800day energy value 55,000 ...

  20. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Residential Tax Credits, Rebates & Savings Tax Credits, Rebates & Savings Biogas, Solar, and Wind Energy Equipment Exemption Eligible Technologies Eligibility: Commercial,...

  1. Opportunities in Bond Financing | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in Bond Financing Opportunities in Bond Financing Presentation about financial options and opportunities for biogas and fuel cells. Presented by James Dack, Stern Brothers, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_dack.pdf (154.9 KB) More Documents & Publications U.S. And International Case Studies for Financing Bioeconomy Projects Leveraging Federal Funds Biogas and Fuel Cells Workshop Summary Report: Proceedings

  2. ActiveGreenScore | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Website: hackerleague.orghackathonsboston-cleanweb-hackathonhacksactivegree Cost: Free OpenEI Keyword(s): Cleanweb Hackathon, Boston, Community Generated Coordinates:...

  3. Badema | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Website: hackerleague.orghackathonsboston-cleanweb-hackathonhacksdesigning- Cost: Free OpenEI Keyword(s): Cleanweb Hackathon, Boston, Community Generated Coordinates:...

  4. Energy and economic assessment of anaerobic digester and biofuels for waste management

    SciTech Connect

    Not Available

    1981-08-01

    A history of biogas production in the USA is presented. Recent systems approaches to biogas are considered. Technological problems that have interfered with the routine operation of biogas digesters are the barriers to feed-material handling, inadequate feed material preparation, irregular gas production of current designs of small-scale systems, and the capital- and maintenance-intensive nature of the conversion of biogas to electricity. Finally, it was noted that so far no work has been carried out to study alternative uses for biogas, as for example the production of methanol or ammonia.

  5. Industry Perspective | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Industry Perspective Industry Perspective Fuel cell and biogas industries perspectives. Presented by Mike Hicks, Fuel Cell and Hydrogen Energy Association, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_hicks.pdf (534.01 KB) More Documents & Publications The Business Case for Fuel Cells 2011: Energizing America's Top Companies 2011 Fuel Cell Technologies Market Report Florida Hydrogen Initiative

  6. Welcome to NREL | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Welcome to NREL Welcome to NREL Welcome presentation by Dale Gardner, National Renewable Energy Laboratory, at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012_biogas_workshop_gardner.pdf (2.23 MB) More Documents & Publications Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell Integration at Biorefineries Biogas and Fuel Cells Workshop Agenda DOD-DOE Aircraft Petroleum Use Reduction Workshop Agenda

  7. Methane generation from animal wastes

    SciTech Connect

    Fulton, E.L.

    1980-06-01

    The conversion of manure to biogas via anaerobic digestion is described. The effluent resulting from the conversion retains fertilizer value and is environmentally acceptable. Discussion is presented under the headings: methane formation in the digester; the Tarleton State Poultry Waste to Methane production system; operating experience at Tarleton State; economics of biogas production from poultry waste; construction cost and biogas value; energy uses; feed and waste processing; and advantages of anaerobic digestion. (DMC)

  8. The Arabidopsis domain of unknown function 1218 (DUF1218) containing proteins, MODIFYING WALL LIGNIN-1 and 2 (At1g31720/MWL-1 and At4g19370/MWL-2) function redundantly to alter secondary cell wall lignin content

    DOE PAGES [OSTI]

    Mewalal, Ritesh; Mizrachi, Eshchar; Coetzee, Berdine; Mansfield, Shawn D.; Myburg, Alexander A.; Zabotina, Olga A.

    2016-03-01

    DUF1218 is a land plant-specific innovation and has previously been shown to be associated with cell wall biology, vasculature patterning and abiotic/biotic stress response. The Arabidopsis genome encodes 15 members, two of which (At1g31720 and At4g27435) are preferentially expressed in the secondary cell wall depositing inflorescence stems. To further our understanding of the roles of DUF1218-containing proteins in secondary cell wall biology, we functionally characterized At1g31720 (herein referred to as MODIFYING WALL LIGNIN-1 or MWL-1). Since related gene family members may contribute to functional redundancy, we also characterized At4g19370 (MWL-2), the most closely related gene to MWL-1 in the proteinmore » family. Subcellular localization revealed that both Arabidopsis proteins are targeted to the cell periphery. The single T-DNA knockout lines, mwl-1 and mwl-2, and independent overexpression lines showed no significant differences in plant growth or changes in total lignin content relative to wild-type (WT) control plants. However, the double homozygous mutant, mwl-1/mwl-2, had smaller rosettes with a significant decrease in rosette fresh weight and stem height relative to the WT control at four weeks and six weeks, respectively. Moreover, mwl-1/mwl-2 showed a significant reduction in total lignin content (by ca. 11% relative to WT) and an increase in syringyl/guaiacyl (S/G) monomer ratio relative to the control plants. Lastly, our study has identified two additional members of the DUF1218 family in Arabidopsis as novel contributors to secondary cell wall biology, specifically lignin biosynthesis, and these proteins appear to function redundantly.« less

  9. EA-1907: Final Environmental Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Assessment EA-1907: Final Environmental Assessment Western Plains Energy, LLC Biogas Anaerobic Digester Facility, Oakley, Kansas For more information, contact: Ms. Melissa...

  10. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Small), Geothermal Direct-Use, Anaerobic Digestion, Fuel Cells using Renewable Fuels Biogas, Solar, and Wind Energy Equipment Exemption Eligible Technologies Eligibility:...

  11. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    produce materials, components or systems to convert solar, wind, geothermal, biomass, biogas or waste heat resources into... Eligibility: Commercial, Industrial Savings Category:...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

  13. Fuel-Flexible Combustion System for Refinery and Chemical Plant...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    low-emission operation across a broad range of fuel compositions, including syngas, biogas, natural gas, and refinery fuel gas. PDF icon Displacing Natural Gas Consumption and...

  14. Net Metering | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    who generate electricity using solar, wind, hydroelectric, geothermal, biomass, biogas, combined heat and power, or fuel cell technologies.* A net metering facility must be...

  15. EA-1832: Finding of No Significant Impact | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    32: Finding of No Significant Impact EA-1832: Finding of No Significant Impact Rainer Biogas LLC Community Anaerobic Manure Digester, Enumclaw, King County, Washington The U.S....

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

    Energy Saver

    Virginia, MN 55792 FCPC Renewable Generation Facility * 2.0 megawatt biodigestion and biogas facility currently being constructed in Menomonee Valley of Milwaukee * Will operate...

  17. Definition:Digester Gas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    digestion is a biological process that produces a gas principally composed of methane (CH4) and carbon dioxide (CO2) otherwise known as biogas. These gases are produced...

  18. Intrepid Technology and Resources Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    specialises in development of biomassbiofuel plants, primarily biogas projects(methane from processing animal waste). References: Intrepid Technology and Resources Inc1...

  19. Paul Gunning | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Gunning About Us Paul Gunning - Director, Climate Change Division, U.S. Environmental Protection Agency Most Recent New Biogas Opportunities Roadmap is Part of Climate Change Solution August

  20. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center

    Alternative fuel production facilities, including biodiesel, biomass, biogas, and ethanol ... In addition, temporary property tax rate abatements are available for qualified biodiesel, ...

  1. Enhanced Anaerobic Digestion and Hydrocarbon Precursor Production...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... to 7 days to minimize the biogas production. Summary Renewable Methane Production We developed a novel process using biochar for producing biomethane at pipeline quality ...

  2. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    components or systems to convert solar, wind, geothermal, biomass, biogas or waste heat resources into... Eligibility: Commercial, Industrial Savings Category: Solar Water...

  3. SBBiogas GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    SBBiogas GmbH Jump to: navigation, search Name: SBBiogas GmbH Place: Marktbreit, Bavaria, Germany Zip: 97340 Sector: Efficiency Product: Bavarian-based biogas turnkey provider...

  4. Biostrom Energiesysteme GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name: Biostrom Energiesysteme GmbH Place: Vechta, Lower Saxony, Germany Zip: 49377 Product: Biostrom Energiesysteme develops, plans and constructs biogas...

  5. BGA Feichten GmbH Co | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Co Jump to: navigation, search Name: BGA Feichten GmbH & Co. Place: Feichten, Bavaria, Germany Zip: 84550 Product: Local investment cooperative operates biogas plant....

  6. Fermenter Doktor | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: Fermenter-Doktor Place: Stuttgart-Vaihingen, Baden-Wrttemberg, Germany Zip: 70569 Product: The cooperative consulting group supports biogas plant...

  7. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    energy manufacturing facilities are those that (1) produce materials, components or systems to convert solar, wind, geothermal, biomass, biogas or waste heat resources...

  8. H2 Refueling Infrastructure: Accelerating Electric Drives: The...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    " 1. Natural gas reforming + CCUS 2. Water electrolysis (renewable, nuclear) 3. Biomass gasification 4. Biogas reforming A commitment to meet both environmental requirements and ...

  9. Greenvironment plc formerly Greenvironment Oy | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    for the construction and operation of autonomous cogeneration plants for biogas and natural gas. References: Greenvironment plc (formerly Greenvironment Oy)1 This article is a...

  10. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    Biomass, Solar Pool Heating, Wind (Small), Anaerobic Digestion Biogas, Solar and Wind Energy Equipment Exemption A solar-energy system is defined as "equipment which directly...

  11. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    Biogas and Biomass to Energy Grant Program The Renewable Energy Resources Program (RERP) promotes the development of renewable energy in Illinois. This program is funded by the...

  12. British Thermal Units (Btu) - Energy Explained, Your Guide To...

    Energy Information Administration (EIA) (indexed site)

    Wood and Wood Waste Waste-to-Energy (MSW) Landfill Gas and Biogas Biomass & the Environment See also: Biofuels Biofuels: Ethanol & Biodiesel Ethanol Use of Ethanol Ethanol & the ...

  13. Industrial Assessment Centers Identifying Energy Savings in Water...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Paul Mehta (309) 677-2754 mehta@bradley.edu DOE Headquarters Program Manager: John Smegal ... including units powered by biogas. * Green Power Partnership - Supports and ...

  14. Industrial Assessment Centers Identifying Energy Savings in Water...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    DOE Headquarters Program Manager: John Smegal John.Smegal@ee.doe.gov Sustainable ... including units powered by biogas. * Green Power Partnership - Supports and ...

  15. List of Wave Energy Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  16. Property Tax Incentive | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Govt Systems Integrator Transportation Tribal Government Utility Coal with CCS Natural Gas BiomassBiogas Yes Alabama Property Tax Exemptions (Alabama) Property Tax...

  17. Line Extension Analysis | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Wind energy BiomassBiogas Hydroelectric energy Hydroelectric (Small)...

  18. Sales Tax Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Govt Systems Integrator Transportation Tribal Government Utility Coal with CCS Natural Gas BiomassBiogas Yes Alcohol Fuels Exemption (Hawaii) Sales Tax Incentive Hawaii...

  19. GasHighWay Best Practices | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    This website provides a compilation of best practices and experiences in the use of natural gas vehicles, the production of biogas and natural gas, and the expansion of...

  20. List of Geothermal Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  1. List of Hydroelectric Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  2. Property Tax Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Govt Systems Integrator Transportation Tribal Government Utility Coal with CCS Natural Gas BiomassBiogas Yes Alabama Property Tax Exemptions (Alabama) Property Tax...

  3. Sales Tax Incentive | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Govt Systems Integrator Transportation Tribal Government Utility Coal with CCS Natural Gas BiomassBiogas Yes Alcohol Fuels Exemption (Hawaii) Sales Tax Incentive Hawaii...

  4. List of Fuel Cells Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  5. List of Geothermal Electric Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  6. List of Tidal Energy Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Coal with CCS Concentrating Solar Power Energy Storage Fuel Cells Geothermal Electric Natural Gas Nuclear Tidal Energy Wave Energy Wind energy BiomassBiogas Hydroelectric...

  7. Corntec GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    GmbH Jump to: navigation, search Name: Corntec GmbH Place: Twist, Lower Saxony, Germany Zip: 49767 Product: Investor in biogas projects in Germany. References: Corntec...

  8. Enbion | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Enbion Jump to: navigation, search Name: Enbion Place: Germany Sector: Solar Product: Germany-based biogas and solar project developer. References: Enbion1 This article is a...

  9. Abengoa | Department of Energy

    Office of Environmental Management (EM)

    of cellulosic ethanol each year. In addition, the facility's integrated, biomass cogeneration plant will use the residual solids and waste water treatment biogas to generate up...

  10. BioEnergy Solutions BES | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Solutions BES Jump to: navigation, search Name: BioEnergy Solutions (BES) Place: Bakersfield, California Zip: 93309 Product: Bakersfield-based firm installing and operating biogas...

  11. DOE Offers Conditional Commitment for a $105 Million Loan Guarantee...

    Energy Saver

    ... The project's innovative process uses enzymatic hydrolysis to convert waste into ethanol and will produce enough biogas to power both Project LIBERTY and POET's adjacent ...

  12. Fuel Cell Power Model for CHHP System Economics and Performance...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Presented at the Renewable Hydrogen Workshop, Nov. 16, 2009, in Palm Springs, CA renewablehydrogenworkshopnov16steward.pdf (818.96 KB) More Documents & Publications Biogas ...

  13. Opportunities for CHP at Wastewater Treatment Facilities: Market...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications 2008 EPA CHP Partnership Update Biogas Technologies and Integration with Fuel Cells Biomass Program Perspectives on Anaerobic Digestion and Fuel Cell ...

  14. Energy Department Finalizes $105 Million Loan Guarantee forFirst...

    Energy.gov [DOE] (indexed site)

    Project LIBERTY's innovative process uses enzymes to convert cellulose from corncobs, corn leaves and corn husks into ethanol. The facility will produce enough biogas to power both ...

  15. Microbial Electrolysis Cells (MECs) for High Yield Hydrogen ...

    Energy.gov [DOE] (indexed site)

    Microbial Electrochemical Technology (MxCs): Challenges and Opportunities 2013 Biological Hydrogen Production Workshop Summary Report Hydrogen and Biogas Production using Microbial ...

  16. Transcript of June 29 Webinar: Tribal Clean Energy for Sovereignty...

    Energy Saver

    ... The construction of the building also includes sustainability measures that recycle a number of food waste sources, resources that go directly to the biogas facility which is just ...

  17. Energy Department Receives EPA Award for Top Green Power Purchase...

    Energy.gov [DOE] (indexed site)

    Green power is electricity that is generated from environmentally preferable renewable resources, such as wind, solar, geothermal, biogas, eligible biomass, and low-impact hydro. ...

  18. BETO Hosts Roundtable Discussion on Bioenergy with 4-H Youth...

    Energy Saver

    (2) hydrogen production from biomass for use in fuel cells, and (3) utilizing biogas (primarily a mixture of methane and carbon dioxide produced by the bacterial ...

  19. EPA Honors Organizations for Supporting Green Power | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    generated from renewable resources, such as solar, wind, geothermal, biogas, and low-impact hydropower, and it produces little or no net increase of greenhouse gas emissions. ...

  20. Driving Home to a Clean Energy Future | Department of Energy

    Office of Environmental Management (EM)

    ... National Fuel Cell Research Center, points out the tri-generation facility that uses biogas from Orange County Sanitation District's wastewater treatment plant to produce ...

  1. DOE Announces Contracts to Achieve $140 Million in Energy Efficiency...

    Energy Saver

    ... National Energy Technology Laboratory (Pittsburgh, Penn.) - The project will provide a showcase of innovative technologies, including: biogas boilers, green roofs, hybrid lighting, ...

  2. Denali Commission: Department of Energy Tribal Energy Conference

    Energy Saver

    found in Alaska lake water Coupled with feedstock (lunchroomAC waste) Biogas Cordova High School Students Solid waste reduction Intergovernmental ...

  3. Federal Finance Facilities Available for Energy Efficiency Upgrades

    Office of Environmental Management (EM)

    ... from corn kernel starch), hemicelluloses, lignin, waste materials, biogas, butanol, diesel-equivalent fuel, sugarcane, and nonfood crops such as poplar trees or switchgrass. ...

  4. DOE and USDA Select Projects for more than $24 Million in Biomass...

    Energy Saver

    ... and post-consumer food wastes from supermarkets and restaurants, waste sawdust, grass, leaves, stumps and other forms of wood waste to produce biogas, heat, and electrical power. ...

  5. BILIWG Meeting: DOE Hydrogen Quality Working Group Update and...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Effects of Fuel and Air Impurities on PEM Fuel Cell Performance Effects of Impurities on Fuel Cell Performance and Durability Biogas Impurities and ...

  6. CX-008535: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    King County Biogas and Nutrient Reduction CX(s) Applied: A9 Date: 05/22/2012 Location(s): Washington Offices(s): Golden Field Office

  7. Project Reports for Tulalip Tribes - 2003 Project | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The Tulalip Tribes of Washington, a federally recognized Indian tribe, will assess the feasibility of developing biogas generation facilities to convert manure and other biomass ...

  8. Refueliing Infrastructure for Alternative Fuel Vehicles: Lessons...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    KB) More Documents & Publications Proceedings of the 2005 Hydrogen Pipeline Working Group Workshop City of Tulare Renewable Biogas Fuel Cell Project Microsoft Word - AL2003-04.doc

  9. Slide 1

    Office of Environmental Management (EM)

    ... (AZ) Forest County Potawatomi Community(WI) 2-megawatt anaerobic digestion and biogas generation facility (May 2013) Between 2010 -2016 DOE's Office of Indian Energy has ...

  10. Challenges and Opportunities for Wet-Waste Feedstocks - Resource...

    Office of Environmental Management (EM)

    Challenges and Opportunities for Wet-Waste Feedstocks - Resource Assessment Breakout Session 2-C: Biogas and Beyond: Challenges and Opportunities for Advanced Biofuels from ...

  11. Fuel-Flexible Combustion System for Refinery and Chemical Plant...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    capable of automatic, safe, reliable, efficient, and low-emission operation across a broad range of fuel compositions, including syngas, biogas, natural gas, and refinery fuel gas. ...

  12. Enhanced Anaerobic Digestion and Hydrocarbon Precursor Production...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Enhanced Anaerobic Digestion and Hydrocarbon Precursor Production from Sewage Sludge Breakout Session 2-C: Biogas and Beyond: Challenges and Opportunities for Advanced Biofuels ...

  13. Microsoft Word - 2015-05-08_SRNL Enviro Sci and Biotechn Support...

    Office of Environmental Management (EM)

    ... Impact of trace element addition on degradation efficiency of volatile fatty acids, oleic acid and phenyl acetate and on microbial populations in a biogas digester. J. Biosci. ...

  14. Algae-to-Fuel: Integrating Thermochemical Conversion, Nutrient...

    Office of Environmental Management (EM)

    Algae-to-Fuel: Integrating Thermochemical Conversion, Nutrient Recycling, and Wastewater Breakout Session 2-C: Biogas and Beyond: Challenges and Opportunities for Advanced Biofuels ...

  15. Crave Brothers Farm

    SciTech Connect

    2009-10-01

    This is a combined heat and power (CHP) project profile on a 633 kW biogas CHP application at Crave Brothers Farm in Waterloo, Wisconsin.

  16. Office of Indian Energy 2017 Budget Rollout Presentation

    Energy Saver

    ... (WI) Solar powered tribal government building and an anaerobic digestion and biogas generation facility "Wherever it makes sense, I recommend that tribes develop these ...

  17. Early Markets: Fuel Cells for Material Handling Equipment

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    By directly converting the chemical energy in fuels such as hydrogen, natural gas, or biogas to electricity, fuel cells can effciently provide power while at the same time ...

  18. Garbage In, Power Out: South Carolina BMW Plant Demonstrates...

    Energy Saver

    ... Treatment Plant | New York City Department of Environmental Protection One Year Down the Road of Biogas Industry Development DOE Releases 2013 Fuel Cell Technologies Market Report

  19. Bioenergy Technologies Office Allocates $1 Million for Round...

    Office of Environmental Management (EM)

    ... Mango Materials, Albany, California (partnerships with LBNL and LANL): Mango Materials has a biogas fermentation process to produce sustainable and biodegradable biopolymers. The ...

  20. An Analysis of Concentrating Solar Power with Thermal Energy...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    California Independent System Operator (CAISO) Scenarios Scenario Region Incremental Capacity (MW) Biomass Biogas Geo- thermal Small Hydro Solar Photovoltaics (PV) Distributed ...

  1. Biomass Resources Overview and Perspectives on Best Fits for...

    Energy.gov [DOE] (indexed site)

    Presented by Darlene Steward, National Renewable Energy Laboratory, at the NRELDOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado. june2012biogasworks...

  2. EERE Success Story-California: Microturbine Protects Environment...

    Energy Saver

    Microturbines can operate effectively across a wide range of fuels using existing infrastructure including natural gas, landfill gas, biogas generated from anaerobic digesters, and ...

  3. Vehicle Technologies Office Merit Review 2016: Co-Optimization...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    More Documents & Publications City of Tulare Renewable Biogas Fuel Cell Project Vehicle Technologies Office Merit Review 2016: Co-Optimization of Fuels and Engines (Co-Optima) ...

  4. Color Palette

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Unique Features of Microgrid Controller Projects Types of GenerationStorage - Biogas plant - Hydroelectric power - Combined heat and power - Fuel cell - Flywheel Types of Services ...

  5. NREL/DOE EERE QC/Metrology Workshop - EERE Fuel Cell Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    More Documents & Publications Development of Reversible Fuel Cell Systems at Proton Energy Hydrogen and Fuel Cell Technologies Overview Expanding the Use of Biogas with Fuel Cell ...

  6. Microsoft PowerPoint - Tribal Leader Forum Waste to Energy Introductio...

    Energy Saver

    ... Breaks down organic material in absence of oxygen * Sewage, food waste, waste grease, organics from waste stream Produces low to medium Btu biogas and residues Emerging technology ...

  7. Property Tax Abatement for Production and Manufacturing Facilities

    Energy.gov [DOE]

    Qualifying renewable energy manufacturing facilities are those that (1) produce materials, components or systems to convert solar, wind, geothermal, biomass, biogas or waste heat resources into...

  8. EERE Success Story-One Man's Trash, Another Man's Fuel: BMW Plant...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Treatment Plant | New York City Department of Environmental Protection One Year Down the Road of Biogas Industry Development DOE Releases 2013 Fuel Cell Technologies Market Report

  9. AMO Announces Successful Completion of Industrial-Scale Combined...

    Energy.gov [DOE] (indexed site)

    Professor Jack Brouwer, Associate Director and Chief Technology Officer of the National Fuel Cell Research Center, points out the tri-generation facility that uses biogas from ...

  10. Efficient Use of Algal Biomass Residues for Biopower Production...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    on the conversion of algal residues to biogasbiopower via Anaerobic Digestion (AD) * Specific objectives include: * Optimize biogas production from spent microalgae to ...

  11. Panel 3, PEM Electrolysis Technology R&D and Near-Term Market...

    Energy.gov [DOE] (indexed site)

    for a variety of applications: - vehicle fuel, energy arbitrage, ammonia production, biogas enhancement, power-to-gas, etc. * Ancillary services markets provide added revenue ...

  12. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center

    property includes equipment that uses renewable biomass to produce ethanol, methanol, biodiesel, or methane produced from anaerobic biogas, using agricultural and animal waste or...

  13. Biotech | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    India Zip: 695 014 Product: Biotech has developed biogas digesters for domestic use (LPG replacement) and larger municipal sites (electricity generation). Coordinates:...

  14. Biotechnische Abfallverwertung | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    D-80339 Product: Biotechnische Abfallverwertung designs, plans, and constructs Biogas plants for the digestion of organic waste. References: Biotechnische Abfallverwertung1 This...

  15. CEE Bioenergie | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Place: Germany Product: Holding company that will develop a portfolio of biogas plants through acquisitions and project development. References: CEE Bioenergie1 This...

  16. Kedco Group | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Co. Cork, Ireland Product: Cork-based project developer of biogas and gasification plants; also active in the residential heating sector. References: Kedco Group1 This...

  17. Spring Green, Wisconsin: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wisconsin. It falls under Wisconsin's 3rd congressional district.12 Registered Energy Companies in Spring Green, Wisconsin Biogas Direct LCC References US Census...

  18. Zero Waste Energy Development | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Energy Development Jump to: navigation, search Name: Zero Waste Energy Development Place: California Product: California-based partnership created to develop Zanker Road Biogas...

  19. Property:Distributed Generation System Enclosure | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    + Outdoor + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Dedicated Shelter + Distributed Generation StudySUNY Buffalo + Outdoor +...

  20. Sustainable Heat Power Europe GmbH formerly Solar Heat Power...

    OpenEI (Open Energy Information) [EERE & EIA]

    involved in the project development, design and construction of solar thermal, PV and biogas power plants. References: Sustainable Heat & Power Europe GmbH (formerly Solar Heat &...

  1. SS Agriservices | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Kingdom Sector: Renewable Energy Product: Lccal UK firm which is developing a 1MW biogas in Attleborough under a JV with Renewable Zukunft. References: SS Agriservices1 This...

  2. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    Wind (All), Biomass, Solar Pool Heating, Wind (Small), Anaerobic Digestion Biogas, Solar and Wind Energy Equipment Exemption A solar-energy system is defined as...

  3. Schnell Z ndstrahlmotoren AG Co KG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Zndstrahlmotoren is specialized on the production of dual fuel engines (CHPs) for biogas, dump and sewage gas. References: Schnell Zndstrahlmotoren AG & Co. KG1 This...

  4. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    Schools, Agricultural, Institutional Savings Category: Wind (All), Wind (Small) Biogas and Biomass to Energy Grant Program The Renewable Energy Resources Program (RERP)...

  5. Agridea BioPower GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    North Rhine-Westphalia, Germany Zip: 32312 Product: German developer and operator of biogas plants. Coordinates: 52.303048, 8.612882 Show Map Loading map......

  6. IMB Verfahrenstechnik GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    processes which facilitate the efficient exploitation of residues occurring during biogas production. References: IMB Verfahrenstechnik GmbH1 This article is a stub. You can...

  7. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    (Small), Anaerobic Digestion, Other Distributed Generation Technologies, Microturbines Biogas and Biomass to Energy Grant Program The Renewable Energy Resources Program (RERP)...

  8. Ecogenesys | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Name: Ecogenesys Place: Brazil Product: Brazil-based designer of projects focusing on biogas generation from anaerobic digestion of organic waste. References: Ecogenesys1 This...

  9. PlanET Biogastechnik GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Germany Zip: 48691 Product: PlanET Biogastechnik designs and constructs turnkey biogas systems and related components. Coordinates: 52.032844, 6.821105 Show Map Loading...

  10. Sri Chamundeswari Sugars Limited SCSL | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Karnataka-based producer of sugar that has also developed biomass plants including a biogas plant. Coordinates: 12.97092, 77.60482 Show Map Loading map......

  11. Linqu Qinchi Biological Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    City, Shandong Province, China Zip: 262600 Product: Shandong-based developer of a biogas plant that registered as a CDM project. References: Linqu Qinchi Biological Co.,...

  12. Hangzhou Energy Environment Engineering Co Ltd GEEE | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Province, China Zip: 310020 Product: The company develops, designs and contructs biogas plants. References: Hangzhou Energy & Environment Engineering Co Ltd (GEEE)1 This...

  13. Property:Heat Recovery Rating | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    + 2,000 + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + 1,366,072 + Distributed Generation StudySUNY Buffalo + 600,000 + Distributed...

  14. Renetec Co Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Korea (Republic) Sector: Solar Product: A specialist installer of solar, tidal, and biogas power generation plants. References: Renetec Co Ltd1 This article is a stub. You can...

  15. Property:Distributed Generation Prime Mover | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    G3508 + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Caterpillar G379 + Distributed Generation StudySUNY Buffalo + Capstone C60 +...

  16. Property:Nominal Voltage | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Farms + 480 + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + 480 + Distributed Generation StudySUNY Buffalo + 480 + Distributed Generation...

  17. Energie Europe Service | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    firm that develops, finances and operates PV systems as well as biomass and biogas projects. Coordinates: 48.85693, 2.3412 Show Map Loading map......

  18. Punjab Energy Development Agency PEDA | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Biomass, Hydro, Solar Product: Punjab Energy Development Agency is involved with biogas plants, biomass, solar energy, small hydro, municipal solid waste, and cogeneration....

  19. UTS Biogastechnik GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Sector: Services Product: Bavaria-based specialist consultancy in the construction of biogas plants as well as selling related components and services. Coordinates: 48.27304,...

  20. Synagro Technologies Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Zip: TX 77057 Product: Synagro, a residuals mangement company, also provides complete biogas cogeneration systems. References: Synagro Technologies Inc.1 This article is a stub....

  1. Krieg Fischer Ingenieure GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    & Fischer Ingenieure GmbH Place: Germany Product: Krieg & Fischer plans and constructs biogas plants around the world. References: Krieg & Fischer Ingenieure GmbH1 This article...

  2. Bekon Energy Technologies GmbH Co KG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    KG Place: Landshut, Bavaria, Germany Zip: 84034 Product: Planning and construction of biogas plants. Coordinates: 48.53657, 12.151775 Show Map Loading map......

  3. Klickitat County, Washington: Energy Resources | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Zone Subtype B. Energy Generation Facilities in Klickitat County, Washington Roosevelt Biogas 1 Biomass Facility Places in Klickitat County, Washington Bickleton, Washington...

  4. Proactive Energy Limited | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Energy Product: Scotland-based renewable energy company that is developing a 5MW biogas plant in South Lanarkshire. References: Proactive Energy Limited1 This article is a...

  5. Bison Renewable Energy LLC | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Renewable Energy LLC Place: Minneapolis, Minnesota Zip: 55401 Product: Developing biogas production facilities. References: Bison Renewable Energy LLC1 This article is a...

  6. Xergi A S | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Turnkey solutions provider of energy and enviromental CHP plants typically utilising biogas, biomass and landfill gas. Coordinates: 57.049355, 9.91629 Show Map Loading map......

  7. Property:Distributed Generation System Power Application | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    + Based Load + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Based Load + Distributed Generation StudySUNY Buffalo + Based Load + Distributed...

  8. WELtec BioPower GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Saxony, Germany Zip: 49377 Sector: Services Product: WELtec BioPower provides turnkey biogas plants and related services. Coordinates: 52.728997, 8.286404 Show Map Loading...

  9. ODAS OHG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    German company that specialises in the supply of plant based biomass raw materials to biogas facilities. Coordinates: 51.65899, 6.965215 Show Map Loading map......

  10. Incisa | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Rio de janeiro, Brazil Zip: 22250-040 Sector: Efficiency Product: Design and develops biogas projects based in anaerobic digestors and energy efficiency projecs for the indutry....

  11. Property:Technology | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Engine + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Internal Combustion Engine + (previous 25) (next 25) Retrieved from "http:...

  12. BKN biostrom AG formerly BKN BioKraftstoff Nord AG | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Zip: 29365 Product: Investment holding company focusing on project development for biogas plants and the production of biodiesel. Coordinates: 52.766651, 10.49397 Show Map...

  13. Property:Number of Prime Movers | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Farms + 1 + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + 1 + Distributed Generation StudySUNY Buffalo + 2 + Distributed Generation StudySea...

  14. Stirling Energy Systems Inc SES | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Hydrogen, Solar Product: Developer of Stirling engine-based solar systems for STEG, biogas and hydrogen applications. References: Stirling Energy Systems Inc (SES)1 This...

  15. Cowatec AG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cowatec AG Place: Burglengenfeld, Bavaria, Germany Zip: 93133 Product: Cowatec is a biogas plant turnkey provider, also offering financial and permission planning. References:...

  16. 3200 East Ave. S. * PO Box 817 * La Crosse, WI 54602-0817 ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in the Dairyland system is generated primarily at coal facilities but we have a diverse energy portfolio that also includes natural gas, hydro, wind, solar, biomass and biogas. ...

  17. Development of a Renewable Hydrogen Energy Station

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Development of a Renewable Hydrogen Energy Station Edward C. Heydorn - Air Products and ... Vegetable Oils Oils &1; Other Methane Sources Biogas Neighborhoods Businesses Heat ...

  18. CX-008282: Categorical Exclusion Determination

    Energy.gov [DOE]

    Biogas Reconditioning Project CX(s) Applied: B5.1 Date: 05/01/2012 Location(s): Nevada Offices(s): National Energy Technology Laboratory

  19. CX-008438: Categorical Exclusion Determination

    Energy.gov [DOE]

    Biogas Reconditioning Project CX(s) Applied: B5.1 Date: 06/27/2012 Location(s): Nevada Offices(s): National Energy Technology Laboratory

  20. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov [DOE] (indexed site)

    (1) produce materials, components or systems to convert solar, wind, geothermal, biomass, biogas or waste heat resources into... Eligibility: Commercial, Industrial Savings...

  1. Wisconsin's 3rd congressional district: Energy Resources | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    district Able Energy Co. Biogas Direct LCC Coulee Area Renewable Energy Coulee Region Bio Fuels LLC Dairyland Power Cooperative INOV8 International Inc Polymer Technology Corp...

  2. MDP Wiemken GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: MDP & Wiemken GmbH Place: Neuschoo, Germany Zip: 26487 Sector: Solar, Wind energy Product: Wind, biogas and solar project developer. Coordinates: 53.574875,...

  3. EPURON GmbH formerly Voltwerk AG | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    EPURON GmbH (formerly Voltwerk AG) Place: Hamburg, Germany Zip: 20537 Sector: Solar, Wind energy Product: Develops, finances, implements and operates solar, wind and biogas...

  4. Waste-to-Energy Road Mapping Workshop

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... for biogas to remove contaminants that damage downstream equipment * Basic gas ... impact products * High protein, high lipids more oil * High fiber more biochar * ...

  5. Fuel Cell Technologies Office Multi-Year Research, Development...

    Energy.gov [DOE] (indexed site)

    (use of diverse, domestic fuels, including hydrogen, natural gas, biogas, and methanol); reduced air pollution, criteria pollutants, water use; and highly reliable grid support. ...

  6. Wisconsin Tribal Leaders Work Towards a Clean Energy Future ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tribal Nations A 2-megawatt anaerobic digester and biogas generation facility converts food waste into electricity to power 1,500 homes. Photo from Forest County Potawatomi...

  7. Annual Sustainability Report FY 2014 (Management Publication...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... and will seek opportunities to purchase biogas to further reduce natural gas consumption. ... In addition, NREL is exploring options to purchase renewable natural gas from a biomethane ...

  8. Biomass and Waste-to-Energy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Anaerobic Digestion & Biogas: Industry Perspectives ... waste and manure, and municipal commercial food waste. ... Production of Gasoline and Diesel from Biomass via Fast ...

  9. Micropower | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: Micropower Place: Italy Sector: Biomass, Solar, Wind energy Product: Italian firm operating in the wind energy, solar energy, biomass and biogas sectors. The...

  10. U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Develop an expendable, high capacity sorbent to remove sulfur species from anaerobic digester gas, providing an essentially sulfur-free biogas for Direct FuelCell power plants. ...

  11. Algae-to-Fuel: Integrating Thermochemical Conversion, Nutrient Recycling, and Wastewater

    Energy.gov [DOE]

    Breakout Session 2-C: Biogas and Beyond: Challenges and Opportunities for Advanced Biofuels from Wet-Waste FeedstocksAlgae-to-Fuel: Integrating Thermochemical Conversion, Nutrient Recycling, and...

  12. BioPartners ApS | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    factual, professional and impartial advice in connection with processes that include biogas production and separation of clean fertilizers directly from degassed digester...

  13. Ohio's 9th congressional district: Energy Resources | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Generation LLC Advanced Distributed Generation LLC ADG Benjamin Company Bio-Gas Technologies, LLC Bottomline Energy Solutions LLC Buckeye Silicon Buckeye Silicon BeSi Edison...

  14. Technology Deployment List | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    technologiesmatrix.htmlcat OpenEI Keyword(s): EERE tool, Technology Deployment List Language: English References: Technology Deployment List1 Identify emerging-and...

  15. OpenStudio Policy Analysis Tool | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    OpenEI Keyword(s): Energy Efficiency and Renewable Energy (EERE) Tools Language: English References: Policy Analysis Tool1 Perform simple modeling and analysis by...

  16. Visualization of World Energy Supply | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    isualizationofWorldEnergySupply Cost: Free OpenEI Keyword(s): Community Generated Language: English References: OECD1 Motion chart visualization of the world energy supply...

  17. Distributed Energy Calculator | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ibutedenergycalculator.com OpenEI Keyword(s): Challenge Generated, Green Button Apps Language: English References: Apps for Energy1 The Distributed Energy Calculator allows you...

  18. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wind (All), Biomass, Hydroelectric, Tidal, Wave, Ocean Thermal, Solar Pool Heating, Wind (Small) previous 1 2 3 next Refine your results Keyword(s) State All Alabama...

  19. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    residential homes, including: appliances, HVAC equipment, insulation, and equipment recycling.. Rebate... Refine your results Keyword(s) State All Alabama Alaska American Samoa...

  20. Climate-Smart Agriculture Country Profiles | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    featuredproductscsa-country-profiles Country: Argentina, Colombia, Costa Rica, El Salvador, Grenada, Mexico, Peru Cost: Free OpenEI Keyword(s): Agriculture, country profiles,...

  1. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Processing and Manufacturing Equipment, CustomOthers pending approval, Other EE, Food Service Equipment previous 1 2 3 next Refine your results Keyword(s) State All Alabama...

  2. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Processing and Manufacturing Equipment, CustomOthers pending approval, Other EE, Food Service Equipment previous 1 2 next Refine your results Keyword(s) State All Alabama...

  3. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solid Waste, Landfill Gas, Solar Pool Heating, Yes; specific technologies not identified, Geothermal Direct-Use, Anaerobic Digestion Refine your results Keyword(s) State All...

  4. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar Pool Heating Tax Credits, Rebates & Savings Tax Credits, Rebates & Savings Refine your results Keyword(s) State All Alabama Alaska American Samoa Arizona Arkansas...

  5. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2009... Eligibility: Appliance Manufacturers Savings Category: RefrigeratorsFreezers, Water Heaters, Other EE, Food Service Equipment, Pool Pumps Refine your results Keyword(s)...

  6. ERCOT Wind Scraper | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Wind Resource Type: Softwaremodeling tools User Interface: Desktop Application Website: web.ecs.baylor.edufacultygrady OpenEI Keyword(s): Community Generated ERCOT Wind Scraper...

  7. Solar and Wind Energy Resource Assessment (SWERA) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Web Application Link: en.openei.orgappsSWERA OpenEI Keyword(s): Featured Language: English The Solar and Wind Energy Resource Assessment (SWERA) initiative brings together...

  8. Project Opportunities Tracker | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cost: Free OpenEI Keyword(s): Industrial Northern America Language: English The Project Opportunities Tracker provides a central location for viewing, comparing...

  9. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuels, Landfill Gas, Other EE, Anaerobic Digestion, Fuel Cells using Renewable Fuels, Microturbines previous 1 2 next Refine your results Keyword(s) State All Alabama Alaska...

  10. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    specific technologies not identified, Wind (Small), Fuel Cells using Renewable Fuels, Microturbines previous 1 2 3 next Refine your results Keyword(s) State All Alabama Alaska...

  11. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Landfill Gas, Wind (Small), Hydroelectric (Small), Fuel Cells using Renewable Fuels, Microturbines previous 1 2 3 4 next Refine your results Keyword(s) State All Alabama...

  12. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Digestion, Fuel Cells using Renewable Fuels, Other Distributed Generation Technologies, Microturbines previous 1 2 next Refine your results Keyword(s) State All Alabama Alaska...

  13. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Digestion, Fuel Cells using Renewable Fuels, Other Distributed Generation Technologies, Microturbines previous 1 2 3 4 5 next Refine your results Keyword(s) State All Alabama...

  14. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    specific technologies not identified, Wind (Small), Fuel Cells using Renewable Fuels, Microturbines Refine your results Keyword(s) State All Alabama Alaska American Samoa...

  15. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuels, Wind (Small), Geothermal Direct-Use, Fuel Cells using Renewable Fuels, Microturbines previous 1 2 next Refine your results Keyword(s) State All Alabama Alaska...

  16. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Small), Fuel Cells using Renewable Fuels, Other Distributed Generation Technologies, Microturbines previous 1 2 next Refine your results Keyword(s) State All Alabama Alaska...

  17. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solid Waste, Combined Heat & Power, Landfill Gas, Tidal, Wave, Anaerobic Digestion, Microturbines Refine your results Keyword(s) State All Alabama Alaska American Samoa...

  18. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Small), Hydroelectric (Small), Anaerobic Digestion, Fuel Cells using Renewable Fuels, Microturbines previous 1 2 3 4 next Refine your results Keyword(s) State All Alabama...

  19. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Digestion, Fuel Cells using Renewable Fuels, Other Distributed Generation Technologies, Microturbines previous 1 2 3 next Refine your results Keyword(s) State All Alabama Alaska...

  20. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Digestion, Fuel Cells using Renewable Fuels, Other Distributed Generation Technologies, Microturbines previous 1 2 3 4 next Refine your results Keyword(s) State All Alabama...

  1. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Small), Hydroelectric (Small), Anaerobic Digestion, Fuel Cells using Renewable Fuels, Microturbines previous 1 2 3 4 5 next Refine your results Keyword(s) State All Alabama...

  2. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Small), Hydroelectric (Small), Anaerobic Digestion, Fuel Cells using Renewable Fuels, Microturbines previous 1 2 3 next Refine your results Keyword(s) State All Alabama Alaska...

  3. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    specific technologies not identified, Wind (Small), Fuel Cells using Renewable Fuels, Microturbines previous 1 2 3 4 next Refine your results Keyword(s) State All Alabama...

  4. Building Dashboard Network | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    marketplacelisti Cost: Paid OpenEI Keyword(s): Building Management, Building Systems, Energy Management, Enterprise Management, Reporting, Sustainability, Tools, Water Building...

  5. Energy Performance Monitor | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Kingdom Cost: Paid OpenEI Keyword(s): Building Management, Building Systems, Compliance, Energy Management, Lighting, Reporting, Sustainability, Tools, Water Western Europe,...

  6. Continuous Diagnostics Advisor | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Cost: Paid OpenEI Keyword(s): Building Management, Building Systems, Compliance, Custom, Energy Management, Enterprise Management, Events, Scheduling, Sustainability Western...

  7. Building Dashboard Kiosk | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    marketplacelisti Cost: Paid OpenEI Keyword(s): Building Management, Building Systems, Energy Management, Enterprise Management, Reporting, Sustainability, Tools, Water Building...

  8. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    tax credit. Eligibility: Residential, Low Income Residential Savings Category: Geothermal Heat Pumps, Geothermal Direct-Use Refine your results Keyword(s) State All Alabama Alaska...

  9. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Windows, Doors, Motors, Motor VFDs, Comprehensive MeasuresWhole Building, Other EE, Wind (Small), Hydroelectric (Small) previous 1 2 next Refine your results Keyword(s) State...

  10. Ride with Me | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    hackathonsboston-cleanweb-hackathonhacksride-w-sla Country: USA Cost: Free OpenEI Keyword(s): Cleanweb Hackathon, Boston, Community Generated UN Region: Northern...

  11. Building Component Library | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technology characterizations Resource Type: Dataset Website: bcl.nrel.gov Cost: Free OpenEI Keyword(s): buildings, nrel, data, component Language: English Building...

  12. OpenBarter | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Interface: Desktop Application, Website Website: olivierch.github.ioopenBarter Cost: Free OpenEI Keyword(s): International Language: English References: openbarter1...

  13. PVDAQ | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    pvdaq Country: United States Web Application Link: maps.nrel.govpvdaq Cost: Free OpenEI Keyword(s): Featured UN Region: Northern America Coordinates: 39.7405574,...

  14. Opower Social | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Country: United States Web Application Link: social.opower.com Cost: Free OpenEI Keyword(s): Green Button Apps Northern America Coordinates: 38.8911837,...

  15. UnPlug Stuff | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Country: United States Web Application Link: www.unplugstuff.comindex.html Cost: Free OpenEI Keyword(s): Green Button Apps, Challenge Generated Northern America References:...

  16. Green Button Gamer: Driver Challenge | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Device Website: greenbuttongamer.com Web Application Link: greenbuttongamer.com Cost: Free OpenEI Keyword(s): Challenge Generated Green Button Gamer Screenshot References: Green...

  17. Clean Home Massachusetts | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    boston-cleanweb-hackathonhacksjordan-ste Web Application Link: www.cleanma.org Cost: Free OpenEI Keyword(s): Cleanweb Hackathon, Boston, Community Generated Coordinates:...

  18. Power Ally | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    hackspower-ally Country: USA Web Application Link: powerally.com Cost: Free OpenEI Keyword(s): Cleanweb Hackathon, Boston, Community Generated UN Region: Northern...

  19. NREL Energy DataBus | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    United States Web Application Link: www.nrel.govanalysisdatabusindex.html Cost: Free OpenEI Keyword(s): Featured UN Region: Northern America Coordinates: 37.09024,...

  20. BEopt | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    modeling tools User Interface: Desktop Application Website: beopt.nrel.gov Cost: Free OpenEI Keyword(s): EERE tool, BEopt BEopt Screenshot References: BEopt Website 1...

  1. Geothermal Electricity Technology Evaluation Model (GETEM) |...

    OpenEI (Open Energy Information) [EERE & EIA]

    OpenEI Keyword(s): EERE tool Equivalent URI: cleanenergysolutions.orgcontentgeothermal-electricity-technology-eva Language: English Policies: Deployment Programs...

  2. Microsoft Word - HSW-EIS-Review-Report-Rev-6.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... July 2004, author unknown * Unknown organization "Issues Surrounding NQA-1 Requirements from Hanford Contractors," author unknown, date unknown * Table of unknown ...

  3. Anaerobic digestion of the liquid fraction of dairy manure

    SciTech Connect

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

    1983-06-01

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

  4. DOE Technical Targets for Fuel Cell Systems for Stationary (Combined...

    Office of Environmental Management (EM)

    ... cost, natural gas kW 2,400g-5,500h 1,500i Equipment cost, biogas kW 3,200-6,500j 1,400i Installed cost, biogas kW 4,900-8,000j 2,100i Number of plannedforced outages over ...

  5. CX-000959: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Pennsylvania Green Energy Works! Targeted Grant - Biogas - Furmano Foods Biogas Recovery and UtilizationCX(s) Applied: B1.15, B5.1Date: 02/22/2010Location(s): Northumberland County, PennsylvaniaOffice(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  6. The biomethanation of waste material; An example in Germany

    SciTech Connect

    Shin, K.C. )

    1991-01-01

    This paper reports that digester gas (biogas) can be generated from anaerobic decomposition of organic waste substances. In the municipal sewage treatment plants in Germany most of the gas production is used for heating and electric power generation. The major portion of solid waste shall be returned to the economical circuit as biogas, compost and recyclable materials.

  7. Effects of nickel on biological methane generation from a laboratory poultry waste digester

    SciTech Connect

    Williams, C.M.; Shih, J.C.H.; Spears, J.W.

    1986-01-01

    Nickel added in concentrations as low as 10..mu..M significantly increased biogas production in a laboratory poultry waste digester utilizing excreta from laying hens as the organic energy source. It was shown that the initial rate of biogas production increased as early as 4 h after the addition of nickel to the laboratory cultures. Analysis of the excreta for nickel content prior to addition of exogenous NiCl/sub 2/ showed appreciable amounts of nickel present. The data indicate that nickel naturally present in layer excreta is suboptimal or unavailable to the bacteria for biogas production purposes.

  8. Biogass Generator

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Another internet tool by: Build Your Own Page 1 of 5 Teach...build...learn...renewable energy! Biogas Generator A Renewable Energy Project Kit The Pembina Institute What Is Biogas? Biogas is actually a mixture of gases, usually carbon dioxide and methane. It is produced by a few kinds of microorganisms, usually when air or oxygen is absent. (The absence of oxygen is called "anaerobic conditions.") Animals that eat a lot of plant material, particularly grazing animals such as cattle,

  9. Consorcio Horizonte Asja | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name: Consorcio Horizonte Asja Place: Brazil Product: Brazil-based joint venture between two subsidiaries of Asja.biz developing a 4.5MW biogas plant....

  10. E3 BioFuels | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    E3 BioFuels Place: Shawnee, Kansas Zip: 66218 Product: Owns a 90.9m litres-a-year ethanol plant in Nebraska; an anaerobic digester generates all the biogas needed to operate...

  11. Renewable LNG: Update on the World's Largest Landfill Gas to LNG Plant

    Office of Energy Efficiency and Renewable Energy (EERE)

    Success story about LNG from landfill gas. Presented by Mike McGowan, Linde NA, Inc., at the NREL/DOE Biogas and Fuel Cells Workshop held June 11-13, 2012, in Golden, Colorado.

  12. Farms to Fuels

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Chickens "Chicken manure provides the highest consistent biogas potential of all available ... Benefits * 820,000 cubic feet of BioMethane per day * 5.2 MW of electricity ...

  13. Industrial Assessment Centers Identifying Energy Savings in Water...

    Energy.gov [DOE] (indexed site)

    of Michigan Director: Dr. Arvind Atreya (734) 647-4790 aatreya@engin.umich.edu DOE ... using electricity produced on-site from resources such as biogas, wind and solar energy. ...

  14. BioConstruct GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    GmbH Jump to: navigation, search Name: BioConstruct GmbH Place: Melle, Lower Saxony, Germany Zip: 49328 Product: Biogas plant turnkey provider also develops and operates...

  15. OeKOBiT GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump to: navigation, search Name: OeKOBiT GmbH Place: Reinsfeld, Rhineland-Palatinate, Germany Zip: 54421 Product: OeKOBiT is a biogas plant turnkey provider, also offering...

  16. Energy Incentive Programs, Wisconsin | Department of Energy

    Energy Saver

    ... projects at commercial and industrial facilities that can reduce load by 50 kW or more. ... WE offers generous buy-back terms for up to 15 years for electricity from solar and biogas ...

  17. Project Profile: Integrated Solar Thermochemical Reaction System...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    a solar thermochemical augment of at least 20% to a chemical fuel (i.e., methane from natural gas or biogas) for use in a modified natural-gas combined-cycle (NGCC) power plant. ...

  18. Project Reports for Minnesota Chippewa Tribe: White Earth Band- 2012 Project

    Office of Energy Efficiency and Renewable Energy (EERE)

    The project will consist of a detailed feasibility study for a biogas/biomass-fired electric combined heat and power (CHP) facility to be located on tribal land adjacent to the Tribe's casino and hotel in Mahnomen, Minnesota.

  19. OpenEI:Projects/Improvements Oil and Gas | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    2 Oil | General Classification 3 Oil | Uses 3.1 Fuels 3.2 Derivatives 3.3 Agriculture 4 Natural Gas | Energy Basics 5 Natural Gas | General Classification 5.1 Biogas 6 Natural...

  20. Pro2 Anlagentechnik GmbH | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Zip: 47877 Product: Pro2 delivers turn-key plants for utilisation of biogas, sewage, natural gas and landfill gas in the range from 100 to 3,600 kWe. Coordinates: 51.26439,...