advanced anaerobic digestion Articles

  • Advances in Thermophilic Anaerobic Digestion

    ABSTRACTSignificant advances have been made in the knowledge base and practical options for improving thermophilic anaerobic digestion over the past 10 to 15 years. Today, more options exist that promise to enhance the degree of stabilization achieved and finished product quality in new and retrofitted existing processes. In parallel, the body of knowledge regarding pathogen inactivation in these ...

  • Anaerobic Digest

    Wilsonville, Oregon: Food Scraps Digester Proposed An anaerobic digester with capacity to process 50,000 to 70,000 tons/year of commercial food waste is being proposed in Wilsonville by Sustainable Organics Recycling Technology (SORT) Bioenergy. Wilsonville is in the Portland metro area. Currently, a portion of commercial food scraps from the metro area are hauled to the ...


    By BioCycle Magazine

  • Operational Experience of Advanced Anaerobic Digestion

    Abstract Anaerobic processes have been used in wastewater treatment systems for more than a century. Initially they were used to stabilise the solids produced, and generally consisted of simple concrete tanks in which the solids were placed as thin slurry and allowed to decompose anaerobically. However, using advanced pre-treatment processes in conjunction with traditional anaerobic ...


  • Startup of Anaerobic Mesophilic Digesters

    Many operators have started up mesophilic digesters, but everyone has differing stories and experiences. This paper is a combination of the startup of several mesophilic anaerobic digesters, with very low seeding to fully seeded conditions. Upper Occoquan Sewage Authority (UOSA) operates the Millard H. Robbins Water Reclamation Plant. UOSA started three anaerobic digesters between August 2000 and ...

  • Review of The Performance of An Advanced Digestion Process

    Abstract The United Kingdom has seen a renewed interest in anaerobic digestion and in particular Advanced Digestion systems. The benefits claimed for these systems are many including increased biogas production, high pathogen kill to Treated and Enhanced Treated standards and better dewaterability of digested sludge to name a few.   This paper reviews performance of three ...


  • Effect of Secondary Aerobic Digestion on Properties of Anaerobic Digested Biosolids

    ABSTRACTIn this study, the performance of sequential anaerobic-aerobic digestion was compared to conventional anaerobic digestion for sludge from the Blue Plains Advanced Wastewater Treatment Plant. Volatile solids removal, polymer conditioning demand for dewatering, and biosolids odor characteristics following anaerobic digestion and sequential anaerobic-aerobic digestion were monitored. Aerobic ...

  • Toronto moves forward with anaerobic digestion of residential SSO

    In June 2007, Toronto's City Council approved the “Target 70” plan to achieve 70 percent diversion by 2010. Target 70 includes construction of two, 55,000 metric tons/year anaerobic digestion plants to process residential source separated organics (SSO). City Council says that the digester facilities, along with adoption of single stream recycling and a pay-as-you-throw funding system, will ...


    By BioCycle Magazine

  • 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

  • Advanced anaerobic processes to enhance waste activated sludge stabilization

    The requirement for enhanced stabilization processes to obtain a more stable, pathogen-free sludge for agricultural use is an increasing challenge to comply with in the waste hierarchy. With this in mind, the Routes European project (‘Novel processing routes for effective sewage sludge management’) is addressed to assess innovative solutions with the aim of maximizing sludge ...


    By IWA Publishing

  • Walpole food waste advanced digestion facility case study

    Dedicated to Digestion Design, Build, Commission, Optimise 30,000 tonnes treated per annum Advanced food waste anaerobic digestion plant Total installed power -1.4 MWe electric Hydrolysis - High Biogas yields Pasteurisation - ABP compliant Digestate - PAS 110 compliant ...


  • Avonmouth food waste advanced digestion facility case study

    Dedicated to Digestion Design, Build, Commission 40,000 tonnes treated per annum Advanced food waste anaerobic digestion plant Total installed power - 5.75 MWe electric Hydrolysis - high biogas yields Pasteurisation - ABP compliant Digestate - PAS 110 compliant ...


  • 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 ...


    By Monsal Limited

  • 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 ...


  • Advanced Digestion Plant at Bran Sands design and construct experiences

    Abstract In June 2007 Northumbrian Water awarded a design and construct contract to Aker Solutions for a new advanced digestion (AD) plant at their Bran Sands site on Teesside. Following laboratory trials, advanced digestion via thermal hydrolysis was identified as the preferred treatment process for the upgrade of Bran Sands Regional Sludge Treatment Centre (RSTC). The plant will treat ...


    By Cambi AS

  • Innovation Key To Biosolids Digestion

    A $400 million project at the Blue Plains Advanced Wastewater Treatment Plant (AWTP) in Washington, D.C., involves building an innovative biosolids management system comprised of a thermal hydrolysis process, four 3.8-million gallon mesophilic digesters (measuring 70-ft tall by 100-ft in diameter) with fixed covers, a cogeneration system consisting of three 4.6-MW Solar Mercu ry 50 gas turbines ...


    By BioCycle Magazine

  • Novel anaerobic digestion process with sludge ozonation for economically feasible power production from biogas

    A novel process scheme was developed to achieve economically feasible energy recovery from anaerobic digestion. The new process scheme employs a hybrid configuration of mesophilic and thermophilic anaerobic digestion with sludge ozonation: the ozonated sludge is first degraded in a thermophilic digester and then further degraded in a mesophilic digester. In small-scale pilot experiments of the ...


    By IWA Publishing

  • Use of an elemental balance over primary and secondary anaerobic digestion of sewage sludge to determine its carbon impact

    This paper details how a mass balance, which was conducted for all of United Utilities’ anaerobic digestion plants, was used to calculate emission factors for various types of anaerobic digestion processes to enable calculation their carbon footprint. The mass balance showed average volatile solids destruction rates of 45% and 11% over primary and secondary digestion respectively. The calculated ...


    By Cambi AS

  • Thermophilic sludge digestion and advanced nutrient treatment: Perfect fits for sustainable sewage treatment

    Conventional sewage treatment Sludge line: 20 kg DM IE-1 year1 to sludge Sludge treatment and disposal: 40% of STP opex Electricity: Overall STP consumption: 33 kWh IE-1 year1 Recovery with mesophilic (30-35°C) anaerobic digestion (AD) The Netherlands: -50% of sludge digested, producing 8.9 kWh IE-1 ...


    By Colsen International b.v.

  • 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 ...

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