biogas foam Articles

  • Anaerobic digestion foaming in full-scale biogas plants: a survey on causes and solutions

    Anaerobic digestion foaming is a common operation problem in biogas plants with negative impacts on the biogas plants economy and environment. A survey of 16 Danish full-scale biogas plants on foaming problems revealed that most of them had experienced foaming in their processes up to three times per year. Foaming incidents often lasted from one day to three weeks, causing 20–50% ...


    By IWA Publishing

  • Fre-energy 250m3 DIY Installed Biogas Storage

    Following the installation in 2011 of our 250m3 biogas holder at Much Fawley Farm near Hereford, Fre-energy decided to purchase a second Base Biogas Holder for use with their own Anaerobic Digester located at Lodge Farm near Wrexham, which just happens to be the largest organic farm in Wales. Their unique AD tank design incorporates a clever mechanism for in-process de-gritting which greatly ...


    By Base Structures Ltd

  • Co-digestion of glycerine and sewage sludge to optimise green electricity production

    Sewage sludge and crude glycerine were co-digested in the mesophilic digester of Hoogstraten wastewater treatment plant. Additions of up to 1 kg of crude glycerine/(m³ reactor).(day) were done without significant operational problems. At higher dosage, severe digester foaming was observed. Methane production during co-digestion was up to 20% higher than what would be expected based ...


    By IWA Publishing

  • Improving products of anaerobic sludge digestion by microaeration

    Biogas, digested sludge and sludge liquor are the main products of anaerobic sludge digestion. Each of the products is influenced significantly by specific conditions of the digestion process. Therefore, any upgrade of the digestion technology must be considered with regard to quality changes in all products. Microaeration is one of the methods used for the improvement of biogas quality. ...


    By IWA Publishing

  • Crescent Duck gets its ducks in a row with GTI cover system - case study

    Crescent Duck, in coordination with its engineering consultants at Applied Technologies, Inc., contacted Geomembrane Technologies Inc. (GTI) for advice on replacing the damaged cover. As part of its research efforts, Crescent Duck visited another plant that had installed a GTI insulated gas collection cover and saw the quality and durability of the product first-hand. This site visit, combined ...

  • Anaerobic Co-Digestion of a Single Source Oily Waste and High Strength Pet Food Wastewater: A Study of Failure and Revival of a Full Scale Digester

    ABSTRACTThis paper focuses on the revival of a formerly failed digester of 1800 m3 volume. The most obvious cause of failure was identified to be due to capping caused by foam and scum, as result of attempting to treat oil rich, high strength wastewater. The revival was affected by implementing co-digestion in a 3-step remedial procedure. Though in the typical sense, codigestion involves separate ...

  • GTI Helps Dairy Plant Keep Treatment System Operating Successfully for 25 Years

    The Customer: A large milk processing plant located in the United States with global distribution. The Customer’s Needs: The plant is located in an urban setting, surrounded by residences and businesses. Odor from the treatment system is a prime concern for the milk processor. When the milk processor acquired the plant, the biogas collection ...

  • Crescent Duck Gets its Ducks in a Row by Switching to a GTI Cover

    The Customer: Crescent Duck Farm, located in Aquebogue, Long Island, NY, USA, produces only premium fresh and frozen ducks and duck products. Family-owned since 1908, Crescent Duck’s breeding and processing efforts have ensured that its products meet the standards of even the most discerning white tablecloth restaurants and Asian food trades. They also raise, slaughter, package, and ...

  • CSDU Granges, France case study

    Design & Build of a Landfill Leachate Treatment Plant The Client The landfill, opened in 1980 and managed by Veolia Propreté, receives about 110,000 tons/year of waste, producing 38 m3/day of leachate. The Challenge The client's main needs, which are typical of all companies operating in this sector, were the reduction in volume of the ...

  • CSDU Granges, France - Case Study

    The Client The landfill, opened in 1980 and managed by Veolia Propreté, receives about 110,000 tons/year of waste, producing 38 m3/day of leachate. The Challenge The client's main needs, which are typical of all companies operating in this sector, were the reduction in volume of the leachate to be disposed of, ensuring that any streams produced can be ...


    By IDRAFLOT

  • Case Study: 48 Hour Tank Lining Repair

    GUEST BLOG: 48-hour tank lining corrosion repair, thanks to SPI’s fast curing Polyshield HT-100F UB In this post, we focus on a tank lining corrosion repair that’s recently been completed by our 2015 Global Distributor of the Year, SPI Performance Coatings Ltd, of Wiltshire UK. This particular project involved a ...

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