Biotech Updates

Impacts of Large Scale Biofuel Ethanol Production on Water Quality

April 11, 2008
http://jeq.scijournals.org/cgi/content/abstract/37/2/318
(may require paid subscription for full paper access)
https://www.soils.org/press/releases/2008/0331/001/

In the March-April 2008 issue of the Journal of Environmental Quality, American scientists from the University of Maryland, University of Arkansas, University of North Carolina at Chapel Hill, Cornell University and Kansas State University, assessed and reported the potential impacts of large scale corn ethanol and cellulose ethanol production on nutrient/animal management, as they relate to water quality. Increased plantations of corn could lead to increases in the nitrogen and phosphorus losses to water. These nutrient losses were estimated to be about 37% for nitrogen and 25% for phosphorous. Measures to mitigate these nutrient losses, such as the use of distiller’s dried grains (DDG) as animal feed to increase manure phosphorus and nitrogen content in soils, were recommended. The technology for the production of ethanol from cellulosic feedstocks (“cellulosic ethanol”) was also seen to have a potential to provide water quality benefits..