ethanol production Articles

  • 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

  • Frame analysis of environmental conflicts in ethanol production in Brazil

    Various actions have been taken by environmental agencies and ethanol producers to promote the environmental sustainability of Brazilian ethanol. The banning of cane burning before harvesting is one such action, since this decreases air pollution and CO2emissions. However, it also changes harvesting from a manual to a mechanised process and is thus likely to cost the jobs of the hundreds of ...


    By Inderscience Publishers

  • Corn stover for ethanol production: Potential and pitfalls

    This study uses a national agro-environmental production model to evaluate the environmental and economic impacts of introducing a market for corn stover to support a stover-based ethanol industry. Prompted by volatility in oil markets, growing concerns about global warming, and an interest in supporting farms and rural communities through stronger agricultural markets, several groups in the ...

  • Tom Vilsack Responds To Studies On Evolution Of Ethanol Production

    On February 16, 2016, Agriculture Secretary Tom Vilsack responded to two recent reports on ethanol and renewable fuels. The first report was published by USDA and is on "2015 Energy Balance for ...


    By Bergeson & Campbell, P.C.

  • Case study - Keeping ethanol production green

    OVERVIEW Originally published in Pollution Engineering Magazine. In an effort to reduce the world’s dependence on fossil fuels, there has been a major push towards alternatives. Ethanol has been at the forefront of this movement because it reduces greenhouse gas emissions from automobiles and its production has a positive net energy balance. The homegrown fuel also ...

  • Reference: Well water treatment for ethanol production

    Europe’s largest ethanol plant in the future requires different water qualities for several processes. A state-of-the-art turn-key water treatment system from ProMinent with reverse osmosis plants and water softener fulfils this challenge. Turning corn into ethanol In Dunaföldvár, south of the Hungarian capital Budapest, the company Pannonia Ethanol Zrt. ...

  • USDA Reports On Increasing Ethanol Production Capacity In The Philippines

    On August, 24, 2016, the U.S. Department of Agriculture (USDA) Foreign Agricultural Service released an annual report on the Philippines' biofuel industry and ethanol imports. In January 2007, The Biofuels Act or Republic Act (RA 9367) was signed, creating ...


    By Bergeson & Campbell, P.C.

  • Commericalizing cellulosic ethanol

    Cellulosic biofuels, produced from nonfood feedstock, are expected to play a critical role in reducing the country's dependence on imported oil. EISA, the Energy Independence and Security Act of 2007, calls for the production of 100 million gallons per year (mgpy) of cellulosic biofuels by 2010, with a longer term goal of 16 billion gallons by 2022.Achieving these goals will not be easy. Several ...


    By BioCycle Magazine

  • Case study - Bakery ethanol

    Overview A bread and bun bakery was faced with installing air pollution control equipment to control the volatile organic compounds (VOCs) emitted during their baking process. The local regulatory agency requires bakeries that generate over 25 tons of ethanol per year to reduce emissions by 95% by installing control devices on their ovens. The airstream that needed to be treated included ...

  • Ethanol Company - Iowa

    A leading ethanol producer located in Iowa produces approximately 50 million gallons of ethanol annually. The plant is owned by more than 750 members, two-thirds of whom are farmers. In order to maximize production and increase operational efficiencies, the company selected Pavilion’s model predictive control (MPC) ethanol solution to enhance the performance of its dryers, syrup evaporator and ...


    By Rockwell Automation, Inc.

  • Badger State Ethanol

    Badger State Ethanol (BSE) is one of the 97 biomass feedstock ethanol plants built in the U.S. as of 2006. Based in Monroe, Wisconsin, BSE engaged in a Model Predictive Control (MPC) solution with Pavilion Technologies, focused on the distillation and dehydration processes. The MPC project has allowed BSE to achieve record production rates by finding optimal process operating conditions which ...


    By Rockwell Automation, Inc.

  • Optimization of gasoline with ethanol blending

    Interest to alcohols is caused by a ratio between their prime cost and their useful properties as gasoline components,  be more specific their ability to increase octane number. As the component to fuels ethanol represents better interest, than methanol as it is better dissolved in hydrocarbons and is less hygroscopic. It was set that the additive of 5% of ethanol to gasoline doesn’t ...


    By GlobeCore Blending

  • The effect of sulfide and ammonia on cassava fermentation for ethanol production in an ethanol–methane coupled system

    An ethanol–methane coupled system was proposed to resolve wastewater pollution in cassava ethanol production. The wastewater originated from ethanol distillation is treated with two-stage anaerobic digestion and then recycled for medium preparation for the next batch ethanol fermentation, thus eliminating wastewater discharge and saving fresh water. The constituents of the two-stage anaerobic ...


    By IWA Publishing

  • Effect of acetic acid in recycling water on ethanol production for cassava in an integrated ethanol–methane fermentation process

    Recently, the integrated ethanol–methane fermentation process has been studied to prevent wastewater pollution. However, when the anaerobic digestion reaction runs poorly, acetic acid will accumulate in the recycling water. In this paper, we studied the effect of low concentration of acetic acid (≤25 mM) on ethanol fermentation at different initial pH values (4.2, 5.2 or 6.2). At an initial pH ...


    By IWA Publishing

  • MSW and Biosolids Become Feedstocks for Ethanol

    The first commercial facility designed to recover recyclables from municipal solid waste, and utilize the residuals with biosolids as feedstock for ethanol production, is moving forward in Middletown, New York. The Orange Recycling and Ethanol Production Facility, to be built on a 22-acre site adjacent to the Middletown Wastewater Treatment Plant, has capacity to process approximately 230,000 ...


    By BioCycle Magazine

  • Framing land use changes in the expansion of Brazilian ethanol production

    Internationally land use change for the expansion of ethanol production in Brazil has been associated with deforestation and CO2 emissions. This association has been denied by important Brazilian actors. To clarify the diverging opinions, a study was made of the expansion of sugarcane plantations. Frame analysis was the tool selected. The conflicting frames identified were ...


    By Inderscience Publishers

  • Ethanol, Biomass Plants Planned for Minnesota

    Proposed facilities prepare to turn organic residuals into electricity, methane and synthesis gas “with minimal emissions and more profit.” AN ETHANOL plant in Little Falls, Minnesota is building an on-site gasifier that will convert wood waste and distiller's grains to gas for generating electricity and heat to serve the needs of the Central Minnesota Ethanol Cooperative. At the same time, ...


    By BioCycle Magazine

  • Optimization of VFAs and ethanol production with waste sludge used as the denitrification carbon source

    An acidification metabolite such as volatile fatty acids (VFAs) and ethanol could be used as denitrification carbon sources for solving the difficult problem of carbon source shortages and low nitrogen removal efficiency. A proper control of environmental factors could be essential for obtaining the optimal contents of VFAs and ethanol. In this study, suspended solids (SS), oxidation reduction ...


    By IWA Publishing

  • Use of cooling tower blow down in ethanol fermentation

    Reducing water consumption in bioethanol production conserves an increasingly scarce natural resource, lowers production costs, and minimizes effluent management issues. The suitability of cooling tower blow down water for reuse in fermentation was investigated as a means to lower water consumption. Extensive chemical characterization of the blow down water revealed low concentrations of toxic ...


    By IWA Publishing

  • Current and future ethanol production technologies: costs of production and Rates of Return on invested capital

    Considering the production goals for cellulosic and advanced biofuels in the Energy Independence and Security Act of 2007 (EISA), this study compares production costs and returns on invested capital for two current and three proposed ethanol technologies. Two methods use corn grain as the feedstock, and three use cellulosic feedstocks of corn stover, switchgrass and wood chips. Baseline levels ...


    By Inderscience Publishers

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