industrial digester Articles

  • Innovation and efficiency at the forefront of long-standing partnership

    Wiltshire-based Malaby Biogas operates one of the few independent anaerobic digestion (AD) plants in the UK, specialising in the diversion of food waste from landfill. Its Bore Hill Farm Biodigester provides a combined waste disposal and energy generation solution in one safe, clean and highly-efficient process and the facility has gained a wide-ranging ...


    By Geotech

  • 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

  • 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

  • Anaerobic digestion of aliphatic polyesters

    Anaerobic processes for the treatment of plastic materials waste represent versatile and effective approach in environmental protection and solid waste management. In this work, anaerobic biodegradability of model aliphatic polyesters, poly(L-lactic acid) (PLA), and poly(ɛ-caprolactone) (PCL), in the form of powder and melt-pressed films with varying molar mass, was studied. Biogas production ...


    By IWA Publishing

  • Golf and a Small Anaerobic Digester

    Golf course associations and golf clubs around the world are looking at ways to improve the sport’s environmental criteria.  Sustainable developments and low carbon footprint operations are the name of the game.  As golf courses use fertiliser for the courses, power for the maintenance machinery, and power for the golf carts, there are many areas where sustainability of the sport ...


    By SEaB Energy Ltd.

  • Digester gas - case study

    BV Dairy, of Dorset, is aiming to cut its carbon footprint by more than 65% as a pioneer of liquid Anaerobic Digestion (AD) technology BV Dairy, Shaftsbury, Dorset Established in 1958, BV Dairy processes around 35 million litres of milk per year, sourced from 35 farms located near its site. The product range includes fresh and cultured dairy products for sale to the UK’s ...


    By ENER-G

  • Equipping Digester For Feedstock Flexibility

    Bayview Flowers is a high value, greenhouse floriculture operation in Jordan Station, Ontario, Canada, that supplies wholesalers and retailers across North America. In 2007, the company installed an anaerobic digester (AD) plant to generate 250 kW of renewable energy. The system was installed to take advantage of a province-wide Feed-In-Tariff (FIT) incentive program to increase the amount of ...


    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

  • 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

  • Anaerobic digestion of wastewater from the fruit juice industry: experiments and modeling

    Anaerobic digestion of wastewater from the fruit juice industry was carried out in a batch digester. To study the effect of the pH values as well as the nutrient medium on the fermentation process, different parameters were monitored under mesophilic temperature, such as cumulative biogas volume, chemical oxygen demand (COD), total sugar, and biomass growth. It was found that for all cases, the ...


    By IWA Publishing

  • Assessment of the state of the art of technologies for the processing of digestate residue from anaerobic digesters

    Anaerobic digestion is widely used as an important source of renewable energy. With the increasing number and capacity of biogas plants also, adequate treatment technologies for whole digestate – the residue from anaerobic digestion – are gaining attention. In this study the state of the art of digestate processing is analysed, and currently used treatment schemes and the various ...


    By IWA Publishing

  • The dirty little secret of anaerobic digesters

    First, I want to state that I am a firm believer in the benefits of anaerobic digesters as both technologies to reduce solid wastes, and also as means of creating clean, renewable fuel. With the abundance of animal and vegetable wastes clogging landfills and polluting rivers and aquifers, plus the rising cost of power, the non-use of anaerobic digesters (both as a revenue generator and a cost ...


  • Aerators Enhance Aerobic Digestion Process

    The city of Eden,N.C.,operates an extended aeration process designed for an average flow rate of 13.5 mgd with a mixed liquor suspended solids concentration that typically checks in about 6,000 mg/l. This high biomass concentration is necessary to provide a well-settling sludge and good effluent quality. Further, the plant influent is approximately 40% domestic wastewater and 60% industrial ...


    By S & N Airoflo, Inc.

  • Designed for generations, water & wastes digest

    Nearly 25 years ago, the consulting engineering firm Banner & Associate, Inc. designed an efficient wastewater treatment facility for the city of Madison, S.D., that featured process control, flexibility and treatment efficiency while minimizing operating and maintenance costs. Key to the system was the aspirator aeration system that supplied reliable oxygenation and mixing to the oxidation ...

  • 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

  • Co-digestion - Processes, potentials and organization Forms

    Co-digestion of organic wastes together with livestock manure has received growing interest in Germany during the last 5 years because some waste acts have been changed in order to achieve a better protection of the environment and to promote the utilisation of wastes for the formation of renewable energy and secondary products which can substitute mineral fertilisers and conventional soil ...


    By ORBIT e.V.

  • Winery and distillery wastewater treatment by anaerobic digestion

    ABSTRACTAnaerobic digestion is widely used for wastewater treatment, especially in the food industries. Generally after the anaerobic treatment there is an aerobic post-treatment in order to return the treated water to nature. Several technologies are applied for winery wastewater treatment. They are using free cells or flocs (anaerobic contact digesters, anaerobic sequencing batch reactors and ...


    By IWA Publishing

  • Part 3 of biofuels digest series on TSCA and the bioeconomy

    Part 3 of Biofuels Digest's "Thought Leadership" series highlighting some of the ways the Toxic Substances Control Act (TSCA) applies to biobased products was published May 18, 2015. Summaries of the first two "TSCA and the Bioeconomy" articles, written by Biobased and Renewable Products Advocacy Group (BRAG®) Senior Policy Advisor and ...


    By Bergeson & Campbell, P.C.

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