organic waste anaerobic digestion Articles

  • Anaerobic Digest

    Washington, DC: NOSB Considers Digestate Use Petition The National Organic Standards Board (NOSB) of the U.S. Department of Agriculture (USDA) has agreed to consider a petition from Cenergy USA, the makers of Magic Dirt™, to allow use of digestate from anaerobic digestion plants in organic agriculture. Magic Dirt is made from digested dairy manure fibers. The soil amendment products ...


    By BioCycle Magazine

  • 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

  • Anaerobic Digest

    Boulder, Colorado: U.S. Distributed Renewables Forecast Published Navigant Research, a market research and consulting firm in Boulder, recently published the “U.S. Distributed Renewables Deployment Forecast, 2016-2025.” The report notes that deployment of distributed renewables, such as wind, solar and anaerobic digestion facilities, in the U.S. has accelerated in the last ...


    By BioCycle Magazine

  • Bio-fuels- Anaerobic digestion

    Anaerobic digestion is a series of processes in which micro organisms break down biodegradable material in the absence of oxygen. It is widely used to treat wastewater sludges and organic (agricultural) wastes.  As part of an integrated waste management system, anaerobic digestion reduces the emission of gas into the atmosphere. Anaerobic digestion is a renewable energy source because the ...


    By Triangle Ltd

  • Environmental efficiency of composting versus anaerobic digestion of separately collected, organic waste

    Environmental policy in the Netherlands among others aims at closing material cycles and minimising the amount of waste requiring final disposal. In this policy the highest priority is given to the prevention of waste production followed by (in descending order of preference) reuse, incineration with energy recovery and sanitary landfilling. In the implementation of this solid waste policy also ...


    By ORBIT e.V.

  • Perspectives on organic waste recovery relative to composting and anaerobic digestion

    Generally speaking, organic waste renders its self suitable for recovery purposes owing to the nutrient elements it contains and the energy stored in the biochemical bonds of its constituent organic compounds. Both composting and anaerobic digestion (AD) have been used since a long time ago in reclaiming organic material. It seems that the first modern composting process was developed in 1920s in ...


    By ORBIT e.V.

  • Perspectives on organic waste recovery relative to composting and anaerobic digestion

    Generally speaking, organic waste renders its self suitable for recovery purposes owing to the nutrient elements it contains and the energy stored in the biochemical bonds of its constituent organic compounds. Both composting and anaerobic digestion (AD) have been used since a long time ago in reclaiming organic material. It seems that the first modern composting process was developed in 1920s in ...


    By ORBIT e.V.

  • Anaerobic digestion in the United Kingdom

    Anaerobic digestion (AD) has been used to treat sewage sludge by the United Kingdom’s (UK) water industry for over 100 years. More recent years have seen a revolution as AD has swiftly expanded into agricultural feedstocks and food waste. Data from the Waste Resource and Action Programme (WRAP) shows that in the past year alone, there has been a 46 percent growth in the size of the sector. ...


    By BioCycle Magazine

  • Comparison of Capacity Factors in Anaerobic Digestion of Organic Waste in the UK

    The ranking was made based on the ratio between the gross electrical production of the plant during 2014 and the registered capacity of the plant under Renewable Energy Guarantees of Origin (REGO) scheme. The data on the electrical production of the plants is publically available through Ofgem  (The Office of Gas and Electricity Markets) which is responsible for the issuance of ...

  • January Anaerobic Digest

    San Francisco Bay Region, California: ABC Digester Operator Training Course The American Biogas Council (ABC) has organized a 3-day, hands-on operator training course, February 6-8, 2018 in the San Francisco Bay area, that focuses on digester operations overall with an additional emphasis on renewable natural gas (RNG) and codigestion at wastewater treatment plants. Each morning starts ...


    By BioCycle Magazine

  • 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

  • Anaerobic Digestion Of Compostable Bags

    Dry anaerobic digestion facility in Luxembourg successfully treats mixed yard and food waste collected in compostable plastic bags. Preprocessing, anaerobic digestion and composting operations are enclosed at the Syndicat Minett-Kompost facility. While the value of compostable plastic bags to increase participation in residential source separated organics (SSO) programs is well-recognized, much ...


    By BioCycle Magazine

  • Anaerobic Digestion technologies for the treatment of Municipal Solid Waste

    Anaerobic Digestion (AD) of Municipal Solid Waste (MSW) is used in several regions worldwide and systems span a range of design options including wet, dry, thermophilic, mesophilic, batch, continuous, single-stage, and multi-stage configurations. This paper reviews a number of commercial and emerging solid waste digestion systems discussing performance and costs. Systems yield 250?710 m³ of ...


    By Inderscience Publishers

  • Addressing food waste through anaerobic digestion

    Food waste continues to be a problem worldwide, even with more and more attention being paid to reducing spoilage and to salvaging edible foods for redistribution or reuse. One approach to the problem is diverting inedible organic matter from landfills and treating it with anaerobic digestion, which has the side effect of capturing energy. The amount of food wasted worldwide was 2.3 billion ...


    By Fluence Corporation

  • Enhanced anaerobic digestion of waste activated sludge of low organic content in a novel digester

    A novel digester, termed an internal circulation anaerobic digester (ICAD), was developed to intensify sludge digestion. It consists of reaction zone, settling zone, thickening zone, riser and downcomer. Internal circulation in the digester is intensified by backflow biogas. The mesophilic ICAD treating thermal pretreated waste activated sludge with volatile suspended solids (VSS)/suspended ...


    By IWA Publishing

  • Effect of organic loading rate on the performance of two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW)

    Two-stage anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) was carried out: hydrolysis and acidogenesis in a continuous anaerobic hydrolytic leach bed (AHLB) reactor loaded at different rates (Bv = 3.8–7 gVSSL−1d−1) and methanogenesis of leachates, diluted with municipal wastewater in an upflow anaerobic ...


    By IWA Publishing

  • Anaerobic digestion in Sweden - status and experiences

    The implementation of biogas technology has in general increased in Sweden over the last 4-5 years. The main reason for this development is the effort to replace landfilling of nutrient-rich, wet organic waste with sustainable alternatives. In accordance with the EU directive on landfilling, a tax on putting organic waste into landfills will be introduced the 1st of January 2000, together with a ...


    By ORBIT e.V.

  • Optimization of Anaerobic Digestion & Bio-Organic Catalyst Compositions (BOCs)

    Abstract: Anaerobic digestion offers excellent opportunities to convert organic waste streams into environmentally safe bio-solids and generation of renewable energy through the bio-methane produced by the microbiological populations processing the wastes. Bio-organic catalyst compositions (BOCs) offer improvements in enhancing anaerobic biological activity and raising bio-methane ...


    By EcoJump LLC

  • Anaerobic co-digestion of municipal organic wastes and pre-treatment to enhance biogas production from waste

    Co-digestion and pre-treatment have been recognized as effective, low-cost and commercially viable approaches to reduce anaerobic digestion process limitations and improve biogas yields. In our previous batch-scale study, fat, oil, and grease (FOG) was investigated as a suitable potential co-substrate, and thermo-chemical pre-treatment (TCPT) at pH = 10 and 55 °C improved CH4 ...


    By IWA Publishing

  • The effect of iron and aluminium for phosphorus removal on anaerobic digestion and organic sulfur generation

    The addition of iron or aluminium into activated sludge basins for phosphorus removal is likely to impact both the efficiency of the anaerobic digestion process and the generation of odor-causing compounds following digestion and dewatering. In this study, the impact of iron and aluminium addition on digestion and odor-causing compounds was investigated by using batch digestion of combined ...


    By IWA Publishing

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