anaerobic digestion outputs Articles

  • Assessing the Market for Anaerobic Digestion

    The anaerobic digestion (AD) industry is growing rapidly. In the UK there are over 215 anaerobic digesters in operation and more than 100 in planning. Understanding how a market will develop is crucial to any successful venture. A client came to us looking to improve their understanding of the current status and future potential of the AD market in the UK and Ireland. In order to progress ...


    By NNFCC

  • Residential SSO To High Solids Anaerobic Digestion

    Source separated organics, including kitchen and garden waste, are processed in a dry AD plant. Resulting biomethane is injected into an adjacent natural gas pipeline. Winterthur, a city in the canton of Zürich in northern Switzerland, has the country’s sixth largest population, estimated at more than 100,000. In 2011, the City of Winterthur launched a 2050 energy policy to ...


    By BioCycle Magazine

  • Anaerobic digestion system for dairy farm wastes

    On of the critical problems in dairy farms is the management of animal wastes. The first negative impact of manure and other animal wastes is emission of malodor and air pollutants and furthermore attraction of insects that may correspond to spreading of pathogens and emerging epidemic diseases. The secondary impacts of un-controlled release of manure and animal wastes are pollution of soil and ...


  • Landfills Expand Energy Output

    HIGH fossil fuel prices and growing concern about global climate change are creating favorable conditions for landfill gas energy (LFGE) projects. Notably, endorsement of LFGE by Federal agencies and many states as a form of “green” power has enabled LFGE developers to earn premiums for electricity marketed through green power programs, and to benefit from expanded federal tax credits for ...


    By BioCycle Magazine

  • Model assisted startup of anaerobic digesters fed with thermally hydrolysed activated sludge

    This paper presents the use of the IWA ADM1 to predict and interpret results from two full-scale anaerobic digesters fed with thermal hyrolysate (waste activated sludge with a long upstream sludge age) from a Cambi hydrolysis process operating at 165°C and 6 bar-g. The first digester was fed conventionally—though intermittently, while the second was heavily diluted through a substantial component ...


    By IWA Publishing

  • Measuring methane at the UK`s first viable compact anaerobic digester plant

    At the UK's first viable compact anaerobic digester (AD) plant aimed at local food waste treatment, a Geotech GA3000 fixed biogas analyser monitors methane (CH4), carbon dioxide (CO2), oxygen (O2) and hydrogen sulphide (H2S). The plant, a modular scalable AD system, unveiled by React Environmental in July 2012 at Llangadog, Carmarthenshire, can handle some 1,000 ...

  • Manure Spills: Prevention, Detection, Control Options, & the Role of Anaerobic Digesters

    An internet search for manure-related spills can lead to an exhausting list of news articles and images of catastrophic environmental damage. In Wisconsin alone, the ...


    By BIOFerm™ Energy Systems

  • Manure Spills: Prevention, Detection, Control Options, and the Role of Anaerobic Digesters

    Manure Spills: Prevention, Detection, Control Options, and the Role of Anaerobic Digesters FOR IMMEDIATE RELEASE By Steven Sell, Biologist & Application Engineer Wednesdays August 27, 2014 ...


    By BIOFerm™ Energy Systems

  • Modified ADM1 for high-rate anaerobic co-digestion of thermally pre-treated brewery surplus yeast wastewater

    Co-digestion of surplus yeast with brewery wastewater is a potentially economical method for recovering energy, in the form of biogas, from this difficult to dispose of by-product. In this work a modified version of the ADM1 (Anaerobic Digestion Model No. 1) was calibrated for an anaerobic digester fed with thermally pre-treated brewery yeast surplus wastewater. The model could predict changes ...


    By IWA Publishing

  • Pilot-scale experiment on thermally hydrolyzed sludge liquor anaerobic digestion using a mesophilic expanded granular sludge bed reactor

    A pilot process of thermal hydrolysis combined with an expanded granular sludge bed reactor (EGSB) was carried out to evaluate pretreated sludge liquor into biogas conversion, process stability, and energy input/output balance. Approximately 25% of suspended solids of sludge were liquefied into aqueous phase during thermal hydrolysis pretreatment, which resulted in chemical oxygen demand ...


    By IWA Publishing

  • Building Farm And Food Scrap Digesters

    In the past several weeks, we received invitations to two ribbon cuttings for newly installed farm-based digesters — one at a dairy farm in western Massachusetts and another at a swine operation in North Carolina. We also received a press release from the University of California, Davis, about its new food scraps digester on campus. And then there were a few new projects that we had been ...


    By BioCycle Magazine

  • Digester Developers Target Mixed Organic Waste Streams

     emerging group of commercial companies see a viable business opportunity in North America around building, owning and operating larger scale anaerobic digestion (AD) facilities to process mixed organic waste streams. In some instances, the projects being proposed and constructed only include anaerobic digester operations. In others, there is a combination of digestion with back-end ...


    By BioCycle Magazine

  • Westry food waste advanced digestion facility case study

    Dedicated to Digestion Design, Build, Commission 60,000 tonnes per annum food waste advanced anaerobic digestion plant Treating source segregated food waste, C&l food waste, slurries and sludges 3 MW electrical power output Modular design with 30,000 tonnes per annum first phase development Fully integrated waste preparation ...


  • Deerdykes food waste advanced digestion facility case study

    Dedicated to Digestion Design, Build, Commission 30,000 tonnes per annum food waste advanced anaerobic digestion plant Treating source segregated food waste, C&l food waste, slurries and sludges 1 MW electrical power output Fully integrated waste preparation system PAS110 and ABPR Cat3 compliant Digestate separation ...


  • RTI`s Co-digester Creator V. 3.0 (beta)

    March 13, 2013.  In conjunction with this year's Global Methane Initiative conference taking place now in Vancouver, RTI is launching our next version of our codigestion creator software, version 3.0.  Biodigestion is the anaerobic decomposition of organic material with methane (biogas) as an output.  Co-digestion is the simultaneous digestion of more than one feedstock in a single ...


    By IWA Publishing

  • Case study - Heat loss - A problem for wastewater treatment & nitrification

    Problem: Operators know aerobic and anaerobic systems need sufficient water temperature to keep microbial populations active and working. Heat loss is detrimental to effluent quality and gas production. Both systems can be negatively affected from low daily and seasonal temperatures. Unfortunately, most operators and engineers have no control over water temperature loss in their tanks and ...

  • Waste-to-Energy Upgrade for Chicken Processing WWTP - Case Study

    When one of Italy’s top chicken producers needed to increase production while lowering costs, it turned to Fluence for a waste-to-energy upgrade to its existing WWTP. When one of Italy’s top agro-food processors wanted to expand its operations, it faced some difficult challenges, including reducing operational costs and producing an effluent that would meet strict European Union ...


    By Fluence Corporation

  • Latest analytical technology ensures biogas efficiency

    Anaerobic Digestion (AD) relies on the ability of specific micro-organisms to convert organic material into a gas that can be used to generate electricity. However, these bacteria require specific conditions if they are to function effectively and instrumentation specialist company HACH LANGE has developed a range of online, portable and laboratory instruments that have enabled a large number of ...


  • Municipal waste water treatment plant case study

    A municipal WWTP in the North of England was experiencing significant problems with accumulations of FOG in the Wetwell at the head of the treatment plant. The FOG would form a solid cap over the well several feet thick. This put considerable strain on the pumping gear, interrupted the performance of the float switches and required regular manual intervention from the staff. High costs were also ...


    By Cleveland Biotech Ltd.

  • Electric Utilities Hook up To Biogas

    Pennsylvania Power & Light, Alliant Energy, Wisconsin Electric and Portland General Electric are some utilities that are plugging into anaerobic digestion projects. AT the October, 2001 BioCycle conference on “Renewable Energy from Organics Recycling,” the director of the Iowa Energy Center, Floyd Barwig, pointed out that the possibility of separating the United States from Middle ...


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