anaerobic digestion facility Articles

  • Biogen food waste anaerobic digestion plant, St Asaph - Case Study

    Biogen provides an integrated food waste management solution for supermarkets, caterers, pubs, hotels, food manufacturers and local authorities across the UK. Biogen’s plant at Waen, St Asaph in Wales processes waste from a variety of county’s such as Conwy, Swansea, Denbighshire and Flintshire. The anaerobic digestion (AD) plant processes 22,500 tonnes of food waste per year which ...


    By Clarke Energy

  • Improved Anaerobic Digestion Feed Systems and Concepts

    The sludge feed systems for anaerobic digestion facilities at wastewater plants in North America have been and continue to be modified and upgraded for a variety of reasons. These reasons include operational problems and issues, evolution from prior primary-sludge-only digestion facilities, performance-based reasons, regulatory-based reasons, and include the desire to improve the digestion ...

  • Pressure-loss computation procedures for non-Newtonian pipe flow

    Wastewater sludge with solids concentrations above about 2 percent exhibit non-Newtonian behavior, i.e., the sludge apparent viscosity changes with the shear rate (flow velocity). To determine pipeline head loss for sludge streams to and from anaerobic digesters, samples of primary, secondary and digested sludge were collected from Orange County Sanitation District Plant No. 1 and analyzed to ...

  • Anaerobic Digestion—What Are the Economics?

    Although solid waste AD facilities are just starting to emerge, haulers and their customers may see some benefits if the development trend continues. A Pro Forma Model objective can be constructed for strategic planning of an anaerobic digestion facility. Anaerobic digestion (AD) of food wastes in the U.S. is a developing market that is poised for continued growth in many regions. ...


    By Waste Advantage Magazine

  • Applying Rheological Techniques to Upgrade Anaerobic Digesters and Handle High Solids Concentrations

    The Orange County Sanitation District (OCSD) is implementing a Capital Improvements Program that includes upgrading their wastewater treatment Plant No. 1 in Fountain Valley, California to full secondary treatment. The expansion will increase both primary and secondary solids production. OCSD prepared a Long-Range Biosolids Management Plan that concluded the waste solids should continue to be ...

  • ABS Innate Microbial Enhancer

    Anaerobic digestion facilities is recognized by the United Nations Development Program as one of the most useful decentralized sources of energy supply, as they are less capital intensive than large power-plants. The technical expertise required to maintain anaerobic digesters coupled with high equipment cost lower process efficiencies have so far limited the level of its industrial application ...

  • Viessmann Group/BIOFerm Energy Systems Selected for Municipal Anaerobic Digestion Project with The City of Edmonton and The University of Alberta

    Viessmann Group/BIOFerm Energy Systems Selected for Municipal Anaerobic Digestion Project with The City of Edmonton and The University of Alberta July 8, 2015  Written by Whitney Beadle PRESS RELEASE For Immediate Release   Madison, WI –  ...


    By BIOFerm™ Energy Systems

  • Huckabay Ridge

    Location: Stephenville, TX Online date: November 2006 Acquisition Date: November 2010 In 2010 Element Markets acquired the largest anaerobic digestion facility in North America through its wholly owned subsidiary EM Biogas. The Huckabay Ridge Anaerobic Digestion Project, located in a large dairy community in Stephenville, Texas, turns manure ...


    By Element Markets LLC

  • Food waste service defence case study

    Client: Sodexo Defence Location: South West & South Central Navy MAC Date: March 2012 Sector: Defence About the Project: GPT Waste in partnership with Sodexo Defence delivers waste services to 11 MOD establishments on contract. Service improvements have been provided from contract start and the ...


    By GPT Waste Management Ltd

  • Federal grants support food waste solutions in Connecticut

    Federal grants totaling $100,000 have been designated to help Connecticut meet federal, state, and local efforts to divert food from landfills while helping provide healthy food to the hungry, protecting the environment, and saving money for businesses and consumers. The Center for EcoTechnology, a nonprofit organization focused on food waste, will use a portion of those grants to provide ...


    By Fluence Corporation

  • MICROBE-LIFT Technology Improves Efficiency of Anaerobic Digesters in Columbia - Preventing Costly Expansion - Case Study

    Location: Empresas Publicas, Columbia Background: Ecological Laboratories Inc. was contacted by Empresas Publicas to determine if bioaugmentation with MICROBE-LIFT® technology could assist in the operation of their anaerobic digesters. The facility consisted of two anaerobic digesters of 7,900 m3 each. The average flow rate was ...


    By Ecological Laboratories Inc

  • Harper Adams College Anaerobic Digester CHP Plant - Case Study

    Harper Adams University College Anaerobic Digestion Facility is an award winning renewable energy development in Shropshire. Operated under the name Harper Adams Energy, the anaerobic digester generates biogas derived from food waste originating from the surrounding area. The plant was officially opened by Lord Taylor of Holbeach CBE, ...


    By Clarke Energy

  • Investigating Steam Application for Reducing Foaming in Activated Sludge Systems

    Filamentous foam, the dispersion of gas bubbles that creates a dense brown scum layer on the surface of activated sludge basins and secondary clarifiers, is caused by the predominance of mycolic acid-containing actinomycetes, such as Gordonia amarae (formerly Nocardia amarae) and the filament Microthrix parvicella. The accumulation of foam causes a variety of operational, safety, and aesthetic ...

  • Study examines anaerobic digestion’s role in water, agriculture, and biofuels issues

    According to a new analysis, working on both clean water and biofuels production in tandem may reap significant environmental and economic benefits. For example, using anaerobic digestion to treat manure could prevent nutrient-runoff pollution and create a renewable energy source, according to the study by EcoEngineers and Goss & Associates. Looking at Iowa farming, the analysts estimated ...


    By Fluence Corporation

  • 15 U.S. Corporations pledge to halve food waste by 2030

    Fifteen United States-based corporations have openly pledged to cut food loss and waste in their operations 50 percent by 2030. This reduction aligns with the United Nations Sustainable Development Goals, which call for cutting “per capita global food waste at the retail and consumer levels and reduce food losses along production and supply chains, including post-harvest losses” in ...


    By Fluence Corporation

  • Molecular Chemical Grinder Improves Digestion in Sludge

    Municipal wastewater treatment plants (WWTPs) can reduce the costs and liabilities of sludge handling and disposal and increase their organic solids conversion rate with the Advanced Fluidized Composting (AFC) Process or the Advanced Fluidized Co-Digeson & Co-Generaon (AFC2) Process from BioConversion Soluons, LLC (BCS). The conventional sludge treatment techniques of aerobic and anaerobic ...

  • Thick sludge digestion - research design and validation of key process unit operations

    ABSTRACTAdvances in the design of anaerobic digesters have seen a trend towards digestion of thicker sludges in the US, UK and elsewhere. This includes a number of new facilities using bolt on technologies to mesophilic anaerobic digestion such as Cambi Thermal Hydrolysis, Prepasteurisation and Biological Hydrolysis. Cambi Thermal hydrolysis utilises thickenedsludge and the digestion process is ...


    By Cambi Group AS

  • Landfills have a huge greenhouse gas problem. Here’s what we can do about it.

    We take out our trash and feel lighter and cleaner. But at the landfill, the food and yard waste that trash contains is decomposing and releasing methane, a greenhouse gas that’s 28 times more potent than carbon dioxide. Landfill gas also contributes to smog, worsening health problems like asthma. Globally, trash released nearly 800 million metric tons (882 million tons) of ...


    By Ensia

  • Creating green energy requires accurate weighing solution

    A 50-tonne, Avery Weigh-Tronix weighbridge/truck scale is helping Malaby Biogas generate 500kW per hour of green electricity to feed the National Grid and supply renewable energy to nine business units on its UK-based anaerobic digestion facility. The 15m, 50 tonne Bridgemont pit mounted weighbridge/truck scale is being used on site ...


    By Avery Weigh-Tronix

  • Technical and economic analysis of real anaerobic digester centrate by means of partial nitrification and sustainable heterotrophic denitrification

    The reliability of partial nitrification coupled with heterotrophic denitrification for the treatment of real anaerobic digester centrate produced in a wastewater treatment plant was technically and economically assessed in two sequencing batch reactors. Removal efficiencies above 90% were consistently achieved at N-ammonium loads above 1.2 g N L−1 d−1. Ethanol, ...


    By IWA Publishing

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