National Geographic Story.
$this->bbcode_second_pass_quote('', 'P')anda has plans to build similar facilities in Haskell County, Kansas, and Yuma, Colorado.
In Mead, Nebraska, a small town of about 600 people 30 miles west of Omaha (Nebraska map), E3 Biofuels is taking the idea of cow power a step further.
Their new facility, set to begin operation in October, will integrate cattle and ethanol production in a highly efficient "closed loop" system.
The E3 operation is smaller than the Panda facilities. Built around an existing feedlot, 30,000 head of cattle will provide the energy needed to produce 24 million gallons (91 million liters) of ethanol a year.
Cattle will be kept in long, covered enclosures with slotted floors, and manure falling through will be pumped directly into the processing facility.
E3 CEO Dennis Langley says collecting the manure immediately eliminates the common problem of water pollution caused by manure left standing in feedlots or spread across farmland.
$this->bbcode_second_pass_quote('', 'T')he close proximity of the feedlot operation wasn't the only reason that brought E3 to Mead; the existence of slatted floors in the feedlot played a key role. It is rare, and expensive, for this flooring technology to be used in feedlots of this size. The slatted floors allow for the manure to be easily collected below the feedlot, cleaned, and pumped into the anaerobic digester. Inside the digester, bacteria breaks down the manure, resulting in bio-methane that is channeled to the ethanol plant.