SWS 2007 Lecture 7: Lecture 7
9 Mar 2017
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Document Summary
Water consumed by energy production is projected to increase at a faster rate than that for any other sector. Consumptive water use by the energy sector is expected to increase 85% by 2035. Daily water use in fl: 7 billion gallons/day. 3,297,528,000 barrels x 42 gal/barrel= 138. 5 billion gallons. It takes 97 gallons of water to produce one gallon of gasoline. Ethanol is an alcohol made from fermenting and distilling biomass that is high in carbohydrates- sugars, starches. Currently the most common substrate used in corn. Scientists are developing technology to allow it to be made from cellulose and hemicellulose the fibrous material that makes up the bulk of most plant matter. The amount of water it takes to produce ethanol varies according to how much irrigation is needed for the corn, the most water-consuming stage ethanol production. In ohio, because of sufficient rainfall, only 1% of the corn is irrigated while in nebraska 72% of the crop is irrigated.
