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Last update: 09.07.2011
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UC Davis ITS take a detailed look at water consumption for ethanol
Source : greencarcongress.com
While a number of studies have tired to assess the water consumption required for ethanol production, the results differ by orders of magnitude, with estimates ranging from 1.1 to 335 l/vehicle kilometer traveled (VKT) for Iowa and from 59 to 214 l/VKT for Nebraska. The major difference between these studies stems from the debate existing in the water life cycle analysis (LCA) literature regarding whether, and how, to include consumption of green water (GW), which comes from precipitation before and during the crop season and is stored as soil moisture, note UC Davis Institute of Transportation Studies (ITS) Gouri Shankar Mishra and Sonia Yeh in a new paper published in the ACS journal Environmental Science & Technology. In their paper, Mishra and Yeh analyze the lifecycle water requirement consumption and withdrawal requirements of ethanol produced from corn and from crop residue.
read more ...
2 May 2011 |
Research ::
Bioethanol ::
United States & Canada
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Articles in the category 'Research' (133 articles)
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