organic waste fermentation Articles

  • Potential of hydrogen production from organic Urban Solid Waste fermentation in Mexico

    Mexico generated 35.4 million tons of urban solid wastes in 2005 of which 51% were organic ones. This biomass can be fermented into H2 when H2-based technologies increase their market penetration for the year 2020. The purpose of this work was to review studies that have utilised organic solid wastes for fermentative H2 production and to evaluate the potential for Mexico. The experimental H2 ...


    By Inderscience Publishers

  • Anaerobic fermentation of organic solid wastes: volatile fatty acid production and separation

    Anaerobic fermentation of organic municipal solid waste was investigated using a leach-bed reactor (LBR) to assess the volatile fatty acid (VFA) production efficiency. The leachate recycle rate in the LBR affected the VFA composition of the leachate. A six-fold increase in the recycle rate resulted in an increase of the acetic acid fraction of leachate from 24.7 to 43.0%. The separation ...


    By IWA Publishing

  • Anaerobic procedures (fermentation)

    Anaerobic technology is particularly well suited for the utilisation of organic industrial refuse with a high water content as well as for the organic part of bio-waste. A crucial factor for the increasing acceptance of anaerobic waste treatment is the fact that - in contrast to composting - the energy (digested gas) which is released during fermentation can be collected and used and enables ...


    By ORBIT e.V.

  • Solid Waste District Pilots Dry Fermentation Digester

    Special events, restaurants and other commercial businesses in the Monterey region of California have found a way to close the compostable waste loop and produce usable electricity at the same time. The electricity is produced via dry fermentation anaerobic digestion (AD) units that came online this spring at the Monterey Regional Waste Management District (MRWMD) in Marina. The pilot AD ...


    By BioCycle Magazine

  • Microbial community analysis during continuous fermentation of thermally hydrolysed waste activated sludge

    Acidogenic fermentation of thermally hydrolysed waste activated sludge was carried out at laboratory scale in two reactors operated under different hydraulic retention times (HRT). Process performance was assessed in terms of volatile fatty acid (VFA) composition and yield. The diversity of the microbial population was investigated by constructing a 16S rRNA gene library and subsequent ...


    By IWA Publishing

  • Acidogenic fermentation of municipal solid waste and its application to bio-electricity production via microbial fuel cells (MFCs)

    Acidogenic fermentation of organic municipal solid waste (MSW) and the bio-electricity production potential from its volatile fatty acid (VFA)-rich leachate using an air-cathode microbial fuel cell (MFC) was investigated in this study. The acidogenic fermentation of 2 kg of MSW has been carried out in a 6 L anaerobic leach-bed reactor (LBR) under mesophilic conditions (30 °C). Total production of ...


    By IWA Publishing

  • Comparison of multi-enzyme and thermophilic bacteria on the hydrolysis of mariculture organic waste (MOW)

    Mariculture organic waste (MOW) is rich in organic matter, which is a potential energy resource for anaerobic digestion. In order to enhance the anaerobic fermentation, the MOW was hydrolyzed by multi-enzyme and thermophilic bacteria. It was advantageous for soluble chemical oxygen demand (SCOD) release at MOW concentrations of 6 and 10 g/L with multi-enzyme and thermophilic bacteria ...


    By IWA Publishing

  • On the pre–treatment of municipal organic waste towards fuel production: a review

    Lignocelluloses are the main constituents of municipal organic waste (MOW). In order to increase the production of fuels, via fermentations, the enzymatic hydrolysis is the first step towards a valorisation process. It is well–known that the hydrolysis of lignocelluloses is not very effective because of the high stability of the constituents. In this respect the pre–treatment of MOW is necessary ...


    By Inderscience Publishers

  • Database “organic and mineral residues”

    In the spirit of the material recycling concept in Germany (KrW-/AbfG, 1994), wastes are to be recycled as completely as possible, avoiding any impairment for mankind and the environment. In this connection, avoidance of material burdens by excessive nutrient and pollutant discharge is particularly important in the treatment, recycling and bringing into circulation of waste materials for re-use ...


    By ORBIT e.V.

  • Perspectives on organic waste recovery relative to composting and anaerobic digestion

    Generally speaking, organic waste renders its self suitable for recovery purposes owing to the nutrient elements it contains and the energy stored in the biochemical bonds of its constituent organic compounds. Both composting and anaerobic digestion (AD) have been used since a long time ago in reclaiming organic material. It seems that the first modern composting process was developed in 1920s in ...


    By ORBIT e.V.

  • Perspectives on organic waste recovery relative to composting and anaerobic digestion

    Generally speaking, organic waste renders its self suitable for recovery purposes owing to the nutrient elements it contains and the energy stored in the biochemical bonds of its constituent organic compounds. Both composting and anaerobic digestion (AD) have been used since a long time ago in reclaiming organic material. It seems that the first modern composting process was developed in 1920s in ...


    By ORBIT e.V.

  • Presence and survival of fungi and clostridium Tyrobutyricum during anaerobic treatment of organic household waste

    Today the anaerobic microbial process of biogas formation is more into focus than ever. This interest is due to the fact that is offers the community means of fulfilling several obligations: treatment of organic wastes, recirculation of nutrients between urban and rural areas and production of renewable energy. Presently, several Swedish cities have built centralised biogas plants, treating ...


    By ORBIT e.V.

  • Waste not in Asheville

    Asheville, North Carolina, has gained a national reputation as a hub of local and artisanal foods. In fact, the local foods movement in this Southern Appalachian city has become so embedded in the community consciousness that the city has dubbed itself “the world’s first Foodtopian Society.” There are hundreds of unique restaurants, dozens of bakeries, breweries and ...


    By BioCycle Magazine

  • Industrial Biotechnology - ASTM Organizes New Technical Committee

    With a total population of nearly 7.2 billion people, and a new birth every eight seconds, our modest planet is straining at the seams. Finding ways to maximize the sustainability of the resources that support us all is of critical importance. One such effort falls under the general heading of industrial biotechnology, which is based on a fascinating premise: that ...


    By ASTM International

  • The Right Forces · Producing Power from Recycled Organics

    FOR the more than 200 persons attending the BioCycle “Renewable Energy from Organics Recycling” Conference held October 29-31 in Des Moines, Iowa, there was a sense they were part of “a profound revolution that is developing in our entire energy system.” The sessions revealed how timing, commercial systems, our nation’s priorities and research knowledge have coalesced. Recovery of biomass — ...


  • Thermophilic two-phase anaerobic digestion of source-sorted organic fraction of municipal solid waste for bio-hythane production: effect of recirculation sludge on process stability and microbiology over a long-term pilot-scale experience

    A two-stage thermophilic anaerobic digestion process for the concurrent production of hydrogen and methane through the treatment of the source-sorted organic fraction of municipal solid waste was carried out over a long-term pilot scale experience. Two continuously stirred tank reactors were operated for about 1 year. The results showed that stable production of bio-hythane without inoculum ...


    By IWA Publishing

  • Converting plant waste into biofuels

    Promising advances using yeast and fungi. Written by Nancy W. Stauffer. You can read the original story in MIT News MIT researchers are genetically engineering yeast to break down stubborn plant fibers into sugars that it can then ferment — a first ...

  • Waste composting as a component of ecological waste management in the Philippines

    Ecological waste management (EWM) is a system of analyzing solid waste concerns and coming up with solutions that would not pose any harm to the environment. This would imply the use of technologies that are environmentally sound such as waste segregation, waste reduction at source, composting and recycling. Furthermore, this system ought to comply with the vision of sustainable ...


    By ORBIT e.V.

  • Waste Water Treatment Processes Explained

    SUNCOAST WASTE WATER MANAGEMENT  presents  AEROBIC -verses- ANAEROBIC THE AEROBIC PROCESS There are two basic types of sewerage treatment processes, which are the Aerobic process and the Anaerobic process. Aerobic means with air or oxygen and Anaerobic (septic) means without air or oxygen. Aerobic bacteria are a higher life form and when digesting waste are utilising dissolved oxygen or air in ...

  • Humid, corrosive and malodorous waste gases - Case Study

    Example: Production of bio-ethanol Similar tasks: Dryers, Fibre board industry The production of bio-ethanol - fermentation, distillation, pelleting and drying - generates odorous and humid waste gas. Upstream lamellar demisters reduce both drop formation - causing lower VOC destruction efficiency - and solid matters. The regenerative thermal oxidiser (RTO) ...

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