raw biogas Articles

  • BioCycle World

    BioCycle REFOR16 Updates BioCycle’s 16th Annual Conference on Renewable Energy From Organics Recycling, October 17-20, 2016 at the Royal Caribe in Orlando, Florida is the only national biogas conference for the biogas industry organized by the leaders of the U.S. Biogas Industry — BioCycle and the American Biogas Council (ABC). Articles in this issue’s ...


    By BioCycle Magazine

  • Low energy mixing to optimize anaerobic digestion at the Kitchener WWTP

    The existing Kitchener Wastewater Treatment Plant (WWTP) is a conventional secondary treatment facility, with a rated capacity of 122,745 mVd. The plant is comprised of two separate secondary treatment plants (Plant 1 and Plant 2) served by a common headworks facilities and primary clarifier facilities. Plant 1 was constructed in the early 1960s and Plant 2 was constructed in the mid-1970s. Both ...

  • 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

  • BioCycle world

    Composters and organics recyclers are encouraged to lend support to the U.S. Composting Council’s education campaign (See “Composting Council Advocates Carbon Offsets In Climate Change Bill,” BioCycle September 2009) by signing an online petition: http://www.petitiononline.com/uscc2009/petition.html. The Solid Waste Association of North America ...


    By BioCycle Magazine

  • Combined experiences of thermal hydrolysis and anaerobic digestion – latest thinking on thermal hydrolysis of secondary sludge only for optimum dewatering and digestion.

    ABSTRACT The basic principles of batch thermal hydrolysis process (THP) are well known as a pre-treatment to anaerobic digestion (AD) . Early work done in the 70s in the USA and the 80s in Japan demonstrated the optimum time and temperature for thermal hydrolysis being 340 F for 30minutes. These principles have been put into full practice in 20 plants around the world at plants ranging from 5 ...


    By Cambi Group AS

  • Five Years of Successful Operation – A Report on North America’s First New Temperature Phased Anaerobic Digestion System at the Western Lake Superior Sanitary District (WLSSD)

    The Western Lake Superior Sanitary District (WLSSD) is located on the western shore of Lake Superior in Duluth, Minnesota. Five years ago, the WLSSD undertook a major change in its biosolids program, shifting from sludge co-incineration with solid waste to temperature phased anaerobic digestion (TPAD) and land application. The WLSSD wastewater treatment plant treats average flows of 162 million ...

  • Generation using gas-fuelled engines in South Africa – an overview

    Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...


    By Clarke Energy

  • How big is the distributed energy opportunity for water and wastewater utilities?

    Energy costs for water utilities are large, and growing Energy is a significant cost for many water utilities, and costs are growing as more energy-intensive forms of water supply, including desalination, are being used. Energy is typically the second-largest utility budget item in developed countries, after labour. In many developing countries, energy can account for 70% or even more, of ...

  • 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

  • Mass conversion in bioreactors - Process analytics controls biotechnological reactions – Case Study

    Bioreactors Bioreactors are technical vessels of different design in which biological and chemical substances are converted or produced under controlled conditions. In bioreactors the knowledge about metabolic processes is applied to produce different substances, to generate energy and to degrade or transform pollutants. Bioreactors, also called fermenters, are not ...

  • Cayuga County, New York Pioneers Community Digester Program

    New project of Soil And Water Conservation District will help control odors and improve water quality while generating biogas with an innovative system. A bioenergy vision that started several years ago is finally being built at the Cayuga County Soil and Water Conservation District headquarters in Auburn, New York. Jim Hotaling, Executive Director, has long envisioned a community digester ...


    By BioCycle Magazine

  • Baseline Projections of Selected Waste Streams

    Abstract Waste represents an enormous loss of resources both in the form of materials and energy. Indeed, quantities of waste can be seen as an indicator of the material efficiency of society. Waste generation is increasing in the European Union, and amounted to about 3.5 tonnes of solid waste per person in 1995 (excluding agricultural waste) 1 Excessive quantities of waste result from: ...

  • Zero Waste System in Paradise

    Most visitors to Fiji come for rest and relaxation on the white sand beaches or for diving and snorkeling among the unspoiled coral reefs. Few visitors realize that this tropical island in the South Pacific, north of New Zealand, is on the cutting edge of industrial ecology with a fully functional, zero waste program located near the Fijian capital of Suva. As part of an EPA funded review of ...


    By BioCycle Magazine

  • Renewable energy marketplace

    ALLU Group markets two types of equipment for use in biomass energy operations. The ALLU Screener Crusher bucket attaches to a front-end loader. The bucket is designed to aerate, crush, screen and mix at one time. The Screener Crusher has a rigid steel frame, onto which horizontally rotating screening and crushing drums are mounted. All the drums rotate in the same direction. There are several ...


    By BioCycle Magazine

  • Landfill gas to fleet fuel in Ohio

    In mid-September, the Solid Waste Authority of Columbus, Ohio (SWACO) cut the ribbon on Phase I of its Green Energy Center that will convert landfill gas to compressed natural gas (CNG) for use in CNG-powered cars and medium duty trucks. The facility will produce enough CNG annually to replace almost 250,000 gallons of gasoline, plus additional natural gas sufficient to generate electricity for ...


    By BioCycle Magazine

  • Flying High

    Operating a biogas plant without gas quality and flow instrumentation is like trying to fly a ...


    By Gas Data Ltd

  • Nestlé - Improving product performance along the value chain

    May 6, 2013 By Claus Conzelmann GLOBE-Net, May 6, 2013 - The food production chain uses a large share of the world's limited resources, which is why as the world's ...


    By GLOBE SERIES

  • 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

  • Urban sustainability issues — Resource-efficient cities: good practice

    Our current pattern of resource use is leading to the depletion and, consequently, scarcity of natural resources (1), the degradation of ecosystems and volatile and increasing prices of natural resources. On a planet with finite resources, the challenge is to find a way of delivering greater value and more services with fewer inputs (EC, 2011a). Resources are defined as raw materials, such as ...

  • 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

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