anaerobic digestion permitting 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

  • Financing an anaerobic digester

    LENDERS are generally well disposed to projects that diversify revenues while lowering costs and mitigating risks. Add a ready source of equity and you are well on the way toward financing a project that is a win-win proposition for the lender and the project developer. Such is the case with the anaerobic digester project at Geerlings Hillside Farm (GHF). The Geerlings's 8,000-head hog farm is ...


    By BioCycle Magazine

  • 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 ...

  • 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

  • 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

  • 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 Developer Taps Natural Gas Markets

    IN the late 1990s, Dan Eastman and two colleagues were researching business opportunities in the renewable energy industry. They were looking for a commercially viable technology that could take renewable energy from an experimental phase to a solid business investment. In 1999, Eastman and his partners founded Microgy, Inc., with its base in Wisconsin. The company licensed the Xergi anaerobic ...


    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

  • `Hyperwaste Reduction` :Organics Recycling May Get Digested Look In Iowa

    CEDAR RAPIDS — with active support from the Iowa Department of Natural Resources (DNR) — is optimistic about its new strategy to expand organics recycling. Under the leadership of executive director Dave Hogan, the Bluestem Solid Waste Agency, which serves the Cedar Rapids region, is presently composting 118,000 tons/year of yard trimmings and paper/pharmaceutical sludges. But Hogan is convinced ...


    By BioCycle Magazine

  • A multi-parameter analyzer helps a Kentucky treatment plant step up to the plate and meet a new phosphorus limit in its permit

    In 2001, the Lexington Fayette Urban County Government West Hickman Creek Wastewater Treatment Plant in Nicholasville, Ky., was starting Phase II of its third upgrade since 1972, when the state imposed a phosphorus limit. Total phosphorus hovered around 6 mg/l, but the permit required 1 mg/l monthly average and 2 mg/l daily maximum from May through October. Engineers from Tetra-Tech, the ...


    By ASA Analytics

  • Nitrogen and Phosphorus-Rich Sidestreams: Managing the Nutrient Merry-Go-Round

    ABSTRACTMany wastewater treatment plants (WWTPs) in the Midwest are facing nutrient removal for the first time, while plants in other parts of the US and the world are struggling with permits that become more stringent with each cycle. Depending on the permit, in-plant sidestreams generated during biosolids processing can greatly affect plant operations and performance, particularly when these ...

  • Closed loop system takes manure and methane

    A CONVERSION plant in Mead, Nebraska is processing manure and methane to create ethanol and compost. According to Nebraska Governor Dave Heineman: “This plant sets a new standard for ethanol production in this state and our nation, and is an example of the innovation needed to take this industry to the next level. It lets America get its automotive fuel from the croplands of the Midwest instead ...


    By BioCycle Magazine

  • Biosolids composting at the Borough of Mechanicsburg, PA WWTP

    The Borough of Mechanicsburg, located in central Pennsylvania, was experiencing challenges in finding sufficient agricultural fields to continue the beneficial use of their anaerobically digested liquid wastewater treatment plant Class B biosolids. At the time, the only alternative available was dewatering and going to landfill, which is significantly more expensive. Due to environmental ...


    By IWA Publishing

  • Tapping the potential of codigestion

    Codigestion refers to processing multiple biodegradable substrates (feedstocks) in an anaerobic digestion (AD) system. A more contemporary definition refers to the digestion of a combination of select biodegradable feedstocks with a base substrate that an AD system was designed to handle. The intent is to maximize the production of biogas (i.e., renewable energy) by adding substrates that produce ...


    By BioCycle Magazine

  • Federal grants support food waste solutions in Connecticut

    Federal grants totaling $100,000 have been designated to help Connecticut meet federal, state, and local efforts to divert food from landfills while helping provide healthy food to the hungry, protecting the environment, and saving money for businesses and consumers. The Center for EcoTechnology, a nonprofit organization focused on food waste, will use a portion of those grants to provide ...


    By Fluence Corporation

  • Codigestion In Central Florida

    New digester in the Orlando region processes 130,000 tons/year of biosolids, fats, oils, grease and food waste, producing power, a Class AA granular fertilizer and phosphorous-rich struvite. What is today a region in Central Florida teeming with theme parks, resorts, golf courses and over 50 million tourists annually was once an area considered too remote and uninhabitable for ...


    By BioCycle Magazine

  • 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.

  • Food scraps recovery in Ohio

    THE STATE of Ohio launched the Ohio Food Scraps Recovery Initiative in June 2007. Prior to the launch, there were internal discussions at both Ohio Environmental Protection Agency (EPA) and the Ohio Department of Natural Resources (ODNR) for months and years prior to the formal announcement. In September 2007, the State invited grocers, haulers and composters to a stakeholders meeting to ...


    By BioCycle Magazine

  • Wastewater Treatment Upgrade Helps Paper Manufacturer Meet Environmental Standards & Save on Operating Costs - Case Study

    PROJECT DETAILS LOCATION Tivoli, Italy CUSTOMER Consorzio Cartiere di Tivoli SRL SOLUTION Wastewater Treatment, Waste-to-Energy TECHNOLOGIES External Forced Circulation (EFC) Reactor, Oxidation, and Clarification System Sustainability is a primary goal driving ...


    By Fluence Corporation

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