2,572,677 research outputs found

    Use of bamboo fiber in oil water separation

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    One of the environmental issues facing the society is the separation of oil from water in emulsions. Oily wastewater enters into the environment through many ways such as oil spill as well as from the industry. Natural fibers are a viable alternative to synthetic fibers in separating oil from the water. The oil physical characteristics and sorbents made from the fiber influences the sorption of oil onto the fiber. This work uses the naturally available bamboo fibers for separation of oil from water. Very high adsorption capacities were obtained for vegetable oil. Furthermore, recovery of oil was also tested and 90% recovery was obtained. Bamboo fiber has thus great advantage in treating oil-water mixture

    Fossil Fuels: Oil

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    This lesson provides an introduction to the world oil market and the United States' dependence on it. Topics include our current usage, sources, and the political implications of acquiring oil from an international market. There is also discussion of how petroleum is created and trapped in reservoirs, and how oil companies find it. The lesson includes an activity in which students use an online game that simulates the exploration and production of petroleum. To win, they must actually 'produce' commercial quantities of oil or gas by drilling in the ground in a 8-by-8 mile plot of land with a budget of $2 million dollars. Educational levels: Undergraduate lower division, High school

    Electrobioremediation of oil spills

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    Annually, thousands of oil spills occur across the globe. As a result, petroleum substances and petrochemical compounds are widespread contaminants causing concern due to their toxicity and recalcitrance. Many remediation strategies have been developed using both physicochemical and biological approaches. Biological strategies are most benign, aiming to enhance microbial metabolic activities by supplying limiting inorganic nutrients, electron acceptors or donors, thus stimulating oxidation or reduction of contaminants. A key issue is controlling the supply of electron donors/acceptors. Bioelectrochemical systems (BES) have emerged, in which an electrical current serves as either electron donor or acceptor for oil spill bioremediation. BES are highly controllable and can possibly also serve as biosensors for real time monitoring of the degradation process. Despite being promising, multiple aspects need to be considered to make BES suitable for field applications including system design, electrode materials, operational parameters, mode of action and radius of influence. The microbiological processes, involved in bioelectrochemical contaminant degradation, are currently not fully understood, particularly in relation to electron transfer mechanisms. Especially in sulfate rich environments, the sulfur cycle appears pivotal during hydrocarbon oxidation. This review provides a comprehensive analysis of the research on bioelectrochemical remediation of oil spills and of the key parameters involved in the process

    How Best to Auction Oil Rights

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    I study the design of oil rights auctions. A good auction design promotes both an efficient assignment of rights and competitive revenues for the seller. The structure of bidder preferences and the degree of competition are key factors in determining the best design. With weak competition and additive values, a simultaneous first-price sealed-bid auction may suffice. With more complex value structures, a dynamic auction with package bids, such as the clock-proxy auction, likely is needed to promote the efficiency and revenue objectives. Bidding on production shares, rather than bonuses, typically increases government take by reducing oil company risk.Auctions, Oil Auctions, Market Design, Clock Auctions

    Studies on the nutrition of brackish water catfish - Chrysichthys nigrodigitatus . 1. Preliminary investigations on the probable use of vegetable oil in catfish feeds

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    Four groups of brackishwater catfish were fed four diets: N.F. (NIOMR formula 1 feed), A. B. and C. for seven weeks. Feeds N.F., A., B and C. contained 1.21% fish oil + 5.59% vegetable oil; 1.21% fish oil + 7.39% vegetable oil; 1.21% fish oil + 9.09% vegetable oil; 1.21% fish oil + 10.89% vegetable oil respectively. Results of feeding trial showed that growth was best in the group fed diets containing 10.89% vegetable oil and least in those containing 9.09% vegetable oi

    Appeal No. 0707: Halwell Company, Inc. v. Division of Mineral Resources Management

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    Chief\u27s Orders 2001-55, 2002-06, 2002-0

    Appeal No. 0756: Dalton Smith v. Division of Mineral Resources Management

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    Chief\u27s Order 2006-3

    Appeal No. 0698: BT Energy Corporation v. Division of Mineral Resources Management

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    Chief\u27s Order 2000-15

    Appeal No. 0864: Frack Free Mahoning, v. Division of Oil & Gas Resources Management

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    Chief\u27s Order 2014-52 (IWC/Ground Tech., Inc. Facility

    Appeal No. 0912: John & Arlene Wehr v. Division of Oil & Gas Resources Management & Gulfport Energy Corporation

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    Review of Chief\u27s Order 2014-471 (Gulfport Energy Corporation; Brown #9 Unit
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