biogas cogeneration system Articles

  • CHP efficiency for biogas

    Combined heat and power plant efficiency is a function of the conversion efficiency of the energy in the fuel gas to useful energy in the form of electricity and heat. A combined heat and power (CHP) plant is typically a reciprocating gas engine that uses the energy in the gas to drive a crank shaft. The crank shaft turns an alternator to ...


    By Clarke Energy

  • National brewery benefits from biogas

    Anheuser-Busch has installed anaerobic digestion systems at 10 of its 12 large breweries in the U.S., with an 11th system in design. Primary drivers are cost-avoidance for wastewater treatment fees and fossil fuel purchases. ANHEUSER-BUSCH, owner of 12 large breweries in the U.S., has committed to reduce its greenhouse gas emissions 5 percent from 2005 levels by 2010. The company is well ...


    By BioCycle Magazine

  • What`s New? Biogas Power

    Technologies that connect the biogas line to the power line include cooling and clean up components, microturbines and reciprocating gas engines and control systems. TOP BILLING on the biogas to electricity stage typically goes to the microturbines and reciprocating gas engines. But in the theater of renewable energy from organics recycling, the show can’t go on without the supporting cast of gas ...


    By BioCycle Magazine

  • Using biogas for combined heat and power

    An integral part of the majority of anaerobic digestion facilities across the world is the CHP combined heat and power (CHP) engine. For the first time builder of a biogas plant, it is often neglected as the focus is on reducing the capital costs ...


    By Clarke Energy

  • Using biogas for combined heat and power

    An integral part of the majority of anaerobic digestion facilities across the world is the CHP combined heat and power (CHP) engine. For the first time builder of a biogas plant, it is often neglected as the focus is on reducing the capital costs ...


    By Clarke Energy

  • Ethanol by-product raises biogas output

    In 2007, the City of Fergus Falls, Minnesota undertook a study to evaluate adding thick corn stillage to the anaerobic digesters at its wastewater treatment plant (WWTP). The goal was to determine the potential for codigesting syrup with biosolids to increase biogas production, while avoiding operational and regulatory problems. The Fergus Falls WWTP operates three digesters in series, two ...


    By BioCycle Magazine

  • Case study - Purification of biogas in EDAR Mapocho

    BIOCONSERVACION: Integral solution for biogas purification in WWTPs Biogas is mainly composed by methane and carbon dioxide as a result of organic matter fermentation in the absence of air by the action of a microbial consortium (anaerobic digestion). The composition of biogas depends entirely on the nature of the waste processed and the conditions under which takes place the anaerobic digestion. ...


    By Bioconservacion SA

  • High-strength wastes boost biogas production

    Water and wastewater treatment plants (WWTP) are significant consumers of energy. The U.S. Environmental Protection Agency estimates the industry uses the equivalent of 56 billion kilowatt hours (kWh) of electricity, representing three percent of the nation’s energy consumption, and is responsible for creating 45 million tons of greenhouse gas emissions each year. Energy intensive processes, such ...


    By BioCycle Magazine

  • Idex Environnement’s Biogas plant at Amiens - Case Study

    The Anaerobic Digestion (AD) plant in Amiens is operated by Idex Environment. The biogas is derived from the municipal solid waste (MSW) originating from the local area. Clarke Energy has delivered a full turnkey installation for this site, creating renewable energy. The engines supplied for this project are two JGMC ...


    By Clarke Energy

  • Thoeni, Allens Farm Biogas Installation - Case Study

    Allens Farm anaerobic digestion (AD) facility is located within the beautiful countryside of Colchester, which is said to be the oldest recorded town in Great Britain. The farm is run by three partners – David Hunter, Charlie Lochore and Will Lochore, who felt ...


    By Clarke Energy

  • Microturbines, Gas Engines Link Biogas to the Grid

    OPPORTUNITIES to produce electricity from methane are being improved continuously as manufacturers introduce new and upgraded equipment to address market needs and varying characteristics of raw biogas. In the renewable energy from organics recycling arena, the two primary types of electricity generation equipment are microturbines and reciprocating gas engines. This article provides a brief ...


    By BioCycle Magazine

  • Clarke Energy applauded for its ongoing adaptation to the biogas market

    French magazine Energie Plus has put Clarke Energy forward as a good example of a traditional key player adjusting to the constant developing biogas sector. The article shows that today’s companies have to adapt to the markets to survive. It demonstrates Clarke Energy being an inspiring case of a company that has looked at innovative possibilities to handle that new and constantly changing ...


    By Clarke Energy

  • Case study - Biogas desulphurisation in the WWTP do Norte (Portugal)

    The Northern Wastewater Treatment Plant (WWTP) is one of the biggest in the central region of Portugal, servicing various municipalities. The infrastructure is located in the area of Coimbra, Leiria, taking up 6 hectares of land; it receives effluents from some 250,000 inhabitants across multiple municipalities. It has the capacity to treat around 38,000m3 of wastewater on a daily basis, 77% of ...


    By Bioconservacion SA

  • Green Light for Recycling – Biogas has an exciting future - Case Study

    The tipping lorry of the container vehicle moves up. In minutes, its load of food residue is emptied and starts its course to energy recovery. "Energy for tomorrow" is the slogan of the Danpower Group for a reason. Danpower sees the biogas sector as a key growth factor for the future. Twenty five biogas plants are currently in operation, one of which is in Bad Köstritz/Thüringen. ...


    By HSM GmbH + Co. KG

  • Environmental assessment of energy production by combustion of biogas provided by the anaerobic digestion of agricultural biomass

    This paper tries to compare the environmental impacts of energy production using agricultural biomass and energy production using traditional reactor systems (natural gas and fuel oil) by using the Life Cycle Assessment (LCA) methodology. In order to make this comparison, the impact assessment methods CML 2 BASELINE 2000 (problem oriented method) and ECOINDICATOR 99 (damage oriented method) are ...


    By Inderscience Publishers

  • Maximizing Energy Recovery through Digester Gas Management System Enhancement

    ABSTRACTAdvanced anaerobic digestion practices and maximum energy recovery call for a digester gas system that reliably allows for complete biogas collection and utilization. This paper will describe the planning, design, and construction of a new digester gas management system at the East Bay Municipal Utility District’s (District) Main Wastewater Treatment Plant. The need for an upgraded ...

  • Queensland Urban Utilities Upgrades Flood Damaged Site - Case Study

    Adelaide, Australia: Clarke Energy has been commissioned by Queensland Urban Utilities (QUU) to supply two sewage treatment plants (STPs) with new sewage gascogeneration units in Brisbane. Clarke Energy assisting Queensland ...


    By Clarke Energy

  • An optimal energy allocation model using fuzzy linear programming for energy planning in India for the year 2020

    Development of an energy allocation model will help in the proper allocation of the energy sources in meeting the future energy demand in India. In this paper, an attempt has been made to develop a fuzzy-based linear programming optimal energy model that minimises the cost and determines the optimum allocation of different energy sources for the centralised and decentralised power generation in ...


    By Inderscience Publishers

  • Turning waste into power

    Economic, social and environmental factors dictate the necessity to manage waste to a new level. Wastewater plants, landfills, farms and food plants are all the owners of biomass that can be digested to produce biogas and turned into power. Biogas can be burned directly in boilers for heat recovery and used for manufacturing, heating or cooling; this is the simplest method of direct biogas ...


    By Hurll Nu-Way

  • THyPAD – From Pilot to Full Scale Application at Hamar WWTP

    During 2001-2003 the city and county of San Francisco completed a two-year pilot study of pretreatment processes to mesophilic anaerobic digestion for improved biosolids stabilization and production of biosolids suitable for unrestricted reuse (class A biosolids). The pre-treatment options investigated included:   1. A thermophilic (55 °C; TP) process with 5 days hydraulic retention time (HRT).   ...

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