biogas bacteria Articles

  • Cleaning biogas with bacteria

    Organic materials added to an anaerobic digester commonly contain sulphur components. During the anaerobic digestion process, the sulphur is converted into hydrogen sulphide (H2S), which is absorbed by the biogas. When the biogas produced in an AD plant goes on to be combusted in a gas engine or boiler, the H2S will give off sulphur dioxide (SO2) and sulphuric acid ...


    By Biogasclean A/S

  • Aerobic thermophilic bacteria enhance biogas production

    The enhancing effect of aerobic thermophilic (AT) bacteria on the production of biogas from anaerobically digested sewage sludge (methanogenic sludge) was investigated. Sewage sludge (5%, w/w) was incubated at 65°C with shaking for a few months to prepare the AT seed sludge. AT sludge was prepared by incubation of the AT seed sludge (5%, v/v) and sewage sludge (5%, w/w) at 65°C with shaking. The ...


    By Springer

  • Where To Find Money In Biogas

    On the surface, wastewater treatment operations don’t appear to be handling precious material. But these facilities are actually processing a great deal of value every day. Sludge, a byproduct of wastewater treatment, turns out to be an entity worth cherishing. “Depending on treated sludge quality, the final product can be land applied, landfilled, incinerated, or composed,” ...


    By KLa Systems, Inc.

  • The Benefits of Biogas Conditioning

    Abstract Anaerobic digestion is quickly becoming the choice technology for sewage sludge treatment at wastewater treatment plants, as the methane rich biogas produced is a valuable resource which can be used to generate electricity. In the oxygen restricted environment, a natural by-product of the anaerobic process is hydrogen sulfide, a harmful contaminant. Also present in the biogas are ...


    By Biorem Technologies Inc.

  • Above all, biogas must be efficient

    Herning Bioenergi and Bigadan use blower technology made by AERZEN In Denmark, AERZEN blowers create the link between biogas plant and dairy plant. Until 2020 Denmark wants to reduce its gross energy consumption - regardless of the aspired economic growth - by 12% compared with 2006. Another goal: Until 2050 the own power and heat requirements shall exclusively be served by ...

  • 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

  • H2 Energy 7m3 DIY Biogas Storage

    50 years after The Beatles barged their way into the public consciousness, fellow Merseysiders H2 Energy hope to herald a new wave of inspiration and confidence for the renewable energy sector by introducing their Bio Refining process. It would be quite wrong to describe H2 Energy as the new kids on the block however, as there is an enviable pedigree lurking behind the companies youthful good ...


    By Base Structures Ltd

  • Developing a Novel Device for Accurate Biogas Concentration Measurement

    Due to increasing awareness on the impact of fossil fuels on the environment, and heavier taxes on carbon emissions there is a worldwide effort to seek renewable sources of energy – alternative energy sources that increase energy efficiency and security.  A renewable source that’s gained significant attention in recent years is biogas, one of the most ...


    By Edinburgh Instruments Ltd

  • Anaerobic digestion foaming in full-scale biogas plants: a survey on causes and solutions

    Anaerobic digestion foaming is a common operation problem in biogas plants with negative impacts on the biogas plants economy and environment. A survey of 16 Danish full-scale biogas plants on foaming problems revealed that most of them had experienced foaming in their processes up to three times per year. Foaming incidents often lasted from one day to three weeks, causing 20–50% ...


    By IWA Publishing

  • Biogas desulphurisation using the DMT multiple stage Sulfurex® process

    Global rising energy costs are focusing efforts by many industrial and municipal entities to find new sources of energy. Generating electricity from Biogas is of course nothing new however the cost of cleaning up certain Biogas streams with excessive levels of Hydrogen Sulphide (H2S) has previously proven to be financially unsustainable. Rising energy costs combined with improvements and cost ...

  • The DMT Carborex® MS Small scale biogas upgrading plant

    Introduction As we are all aware, fossil fuels are depleting rapidly and the energy consumption is growing. Due to increasing fossil fuel prices other types of fuels become more interesting. Nowadays technology enables us to use renewable fuels in an economically profitable way. An easy technique to produce fuel is the digestion of green waste; sewage sludge, manure and agricultural ...

  • Case study - ElectraTherm green machine installed at biogas plant in Austria

    Biogas/Heat-to-Power Application on a GE Jenbacher 312 Location: Inning, Austria Gross Power Output Range: 18 - 32kWe Thermal Heat Input Range: 260 - 450kWt  Hot Water Input Range:  180°F (82°C) – 200°F (93°C) Hot Water Flow Range: 50 -130 GPM (3.15 – 8.21 l/s) Date Commissioned: Q1 2012 ElectraTherm installed its first Green ...


    By ElectraTherm

  • Influence of cyanide on the anaerobic degradation of glucose

    Bacteria in the anaerobic degradation process convert the substrate to the final products methane and carbon dioxide. Toxic substances can change the process substantially. The purpose of this study was to investigate the influence of toxic cyanide on biogas production in anaerobic degradation of glucose at 40°C. The OxiTop respirometric system offers a quick and simple method for measurement of ...


    By IWA Publishing

  • Case study: Maabjerg Bioenergy

    Substrate: Animal manure and food waste Biogas flow: 3.600 Nm3/h H2S Inlet: 3.000 ppm H2S Outlet: 80 ppm Year of installation: 2012 The Maabjerg plant is a collaboration between agriculture, municipalities and the district heat station and is situated in the northern part of Denmark. When in full ...


    By Biogasclean A/S

  • Modified kinetic-hydraulic UASB reactor model for treatment of wastewater containing biodegradable organic substrates

    This paper addresses a modified kinetic-hydraulic model for up-flow anaerobic sludge blanket (UASB) reactor aimed to treat wastewater of biodegradable organic substrates as acetic acid based on Van der Meer model incorporated with biological granules inclusion. This dynamic model illustrates the biomass kinetic reaction rate for both direct and indirect growth of microorganisms coupled with ...


    By IWA Publishing

  • Dreyer & Bosse deliver renewable energy CHP project to Sofia in Bulgaria

    The Sofia council decided to invest in renewable energy to make use of the many tons of biowaste (vegetative material),  20,000 tons per annum, from the waste removal collections that take place daily in Sofia and surrounding area. To make this possible it was decided to go for wet fermentation where the substrate or raw material ferments and the biogas is collected. After three weeks the ...

  • The whey to renewable energy

    When Tom Wilson with the Pennsylvania State University Cooperative Extension set out to study the feasibility of a community-based anaerobic digester in Mercer County, he initially analyzed processing manure collected from area dairies and food wastes gathered from the local college, nearby prisons and industrial food processors. But the economics of transporting the materials just did not make ...


    By BioCycle Magazine

  • Cavitation Reactors

    By combining the developments in acoustics, hydrodynamics and chemical kinetics, a new promising device is entering the market: the cavitation reactors, used for processing of suspensions, emulsions and for intensification of chemical processes in solutions. These devices are can be used either separately (in laboratory test-benches) or in industrial mixing processes. In today’s market, two ...


    By GlobeCore GmbH

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you