Waste Conversion Articles

  • Comparative evaluation of conventional and microwave hydrothermal carbonization of human biowaste for value recovery

    This paper compares conventional and microwave hydrothermal carbonization (HTC) of human biowaste (HBW) at 160 °C, 180 °C and 200 °C as a potential technology to recover valuable carbonaceous solid fuel char and organic-rich liquor. Also discussed are the influence of HTC heating methods and temperature on HBW processing conversion into solid fuel char, i.e. yield and post-HTC management, ...


    By IWA Publishing

  • Coalition “Feeds The Need” In California County

    The Waste Not Orange County Coalition is a public-private partnership that increases the flow of — and access to — wholesome nutrition for food-insecure families. Dr. Eric Handler is a pediatrician — and the Public Health Officer for Orange County, California. Over four years ago, he was attending a meeting in Sacramento, the state capital, and met Mark Lowry, Director ...


    By BioCycle Magazine

  • Global food security is a moral imperative

    We must work to overcome hunger not only for economic and political reasons, but also because it is the right thing to do. It is peculiar to live in a world where hunger is an endemic problem for half the planet while diet books are best sellers in the other half. This point is often lost in the broader bundle of jargon that now defines the conversation on food security in the ...


    By Ensia

  • How Food Waste Costs Our Cities Millions

    It would take farm land the size of Mexico just to grow the amount of food that humans produce, but do not eat, every year. More food goes uneaten at the consumption phase of the supply chain—in places like homes, restaurants and cafeterias—than at any other stage. Almost all urban areas experience high levels of food waste—food that is fit for consumption when it reaches ...


    By GLOBE SERIES

  • Conversion of solid organic waste into compost using Trichoderma spp. and its application on some selected vegetables

    This study was conducted to evaluate the potentiality of Trichoderma species as a bio-conversion agent for composting of solid organic waste and examine the effects of produced composts on the growth of two types of vegetables. The experiments were conducted both in vitro and in vivo processes. In vitro conversion of solid organic waste, the highest height and weight losses were found 42.64 ...


    By Inderscience Publishers

  • Effect of operational pH on biohydrogen production from food waste using anaerobic batch reactors

    This study was performed to investigate the influence of operational pH on dark H2 fermentation of food waste by employing anaerobic batch reactors. The highest maximum H2 yield was 1.63 mol H2/mol hexoseadded at operational pH 5.3, whereas the lowest maximum H2 yield was 0.88 mol H2/mol hexoseadded at operational pH 7.0. With ...


    By IWA Publishing

  • Emerging Waste Conversion Technologies

    Today, people and companies are more aware and concerned about the environment than ever before. Everyone is looking for ways to reduce waste or convert organic waste into something more useful. The Federal Government has introduced a renewable energy policy and is continuing to fund for new waste conversion technology. It is now important for local governments to portray their cities and towns ...


    By Compactor Management Company

  • Marketing and implementing emerging waste conversion technologies: the local effect

    Solid waste management in the U.S. has always been a uniquely local endeavor. Typically, landfilling has provided the most efficient and least expensive option for solid waste management by local governments. Recently, there has been an increasing demand for clean, affordable alternatives to landfilling and other traditional forms of waste disposal. Throughout the world, mainly in Europe and ...


    By Waste Advantage Magazine

  • Release behaviour of chromium from ferrochrome slag

    Huge amount of ferrochrome slag, a solid waste is being generated from submerged electric arc furnace during manufacturing of ferrochrome alloy. The waste slag contains about 6–12% chromium as chromium oxide and it has the potentiality of releasing hazardous chromium compounds. Although chromium exists in the slag as highly immobile Cr (III) state, there is possibility of chromium release under ...


    By Inderscience Publishers

  • Leveraging microgrids in waste-to-energy applications

    What do the waste-to-energy and real estate sectors have in common? In both, location is the key factor influencing the bottom line. Although waste-to-energy conversion technologies continue to improve their efficiency, energy will always be worth more when it is in the right location. With rising energy costs and increasing concern over electric power reliability and sustainability, the ...


    By Waste Advantage Magazine

  • Removal of benzene from wastewater via Fenton pre-treatment followed by enzyme catalyzed polymerization

    This study investigated the feasibility of a two-step process for the removal of benzene from buffered synthetic wastewater. Benzene is outside the scope of enzymatic removal. In order to remove it from wastewater using enzyme, its pretreatment by modified Fenton reaction was employed to generate the corresponding phenolic compounds. In the first phase, the optimum pH, H2O2 and Fe2+ ...


    By IWA Publishing

  • Waste-to-energy: Garbage to gold: putting waste conversion at the center of the clean fuel market

    As the U.S. explores new technologies to transform our energy supply and reduce our dependence on foreign oil, one of the most exciting clean energy solutions has the potential to transform the waste handling industry as well. Cellulosic ethanol, a clean burning advanced biofuel, can be derived from a wide variety of renewable, nonfood sources, including municipal solid waste (MSW) and ...


    By Waste Advantage Magazine

  • Carbon offsets from organic waste conversion projects

    The Climate Act ion Reserve (the Reserve) has long had a protocol to give credit for the capture and destruction of methane emissions from organic waste in landfills, but they have now opened up the possibility of credits for projects that prevent that waste from entering landfills in the first place. In October 2009, the Reserve adopted the Organic Waste Digestion Project Protocol, covering both ...


    By Waste Advantage Magazine

  • How Wastewater Optimization Saved $50k for Corrugating Conversion Facility

    Paper & Pulp Box Company Corrugating Facility Wastewater Optimization This corrugating company did not have an existing pretreatment system. Wastewater from their converting and corrugating ...


    By Integrated Engineers Inc.

  • Influence of poly(bisphenol A carbonate) and poly(ethylene terephthalate) on poly(vinyl chloride) dehydrochlorination

    Abstract  Recycling of poly(vinyl chloride) (PVC) waste is a serious problem because of its high chlorine content. Dehydrochlorination of PVC-containing polymer waste produces solid residue char, for which conversion to pyrolysis oil in a petrochemical plant seems to be an attractive way of recycling PVC waste. Unfortunately, some polymer admixtures react with HCl and cause formation of ...


  • Conversion Facility Chosen for Palm Desert, California

    Untitled Document Committee rates responses to ...


    By BioCycle Magazine

  • Conversion of food waste into hydrogen by thermophilic acidogenesis

    Conversion of food waste into hydrogen by thermophilic acidogenesis was investigated as a function of organic loading rate (OLR), hydraulic retention time (HRT) and pH in a continuous stirred tank reactor. In order to identify hydrogen-producing microorganisms, denaturing gradient gel electrophoresis (DGGE) of the polymerase chain reaction (PCR) – amplified V3 region of 16S rDNA analysis was ...


    By Springer

  • Workshop Proceedings: QUOVADIS Waste-to-Fuel Conversion? A Thinkshop

    Waste incineration practices are currently being diversified and optimised in terms of the efficiency of the recovery of the energy embedded in the waste. One of these tendencies is the conversion of non-hazardous waste into an adequate form for utilisation in an efficient combustion process. The fact that Directive 2000/76/EC on the incineration of waste (WID) now covers both incineration and ...


  • Recycling; Segregation of Waste; Use of Recycled Products; Energy Conservation: Flinders Medical Centre

     Background Flinders Medical Centre (FMC) initiated the Healthy Environment Project in December 1991 with the aim of minimising waste and exploring other environmental initiatives. FMC is a public teaching hospital in the southern suburbs of Adelaide, with 500 beds and 3,000 staff. Over the past two decades, hospitals have increasingly sought to minimise the risk of ...


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