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Vermont dairy installs biodigester--sells energy it generates to utility company.

Green Mountain Dairy, Sheldon, VT, recently installed a biogester which utilizes unprocessed cow manure as a renewable resource and greatly reduces pathogens, fly and insect larvae, weed seeds and odor.

The remaining bio solids are pumped from the effluent pit at the end of the vessel to a manure solids separator. Separated solids, which have virtually no odor and look a good deal like peat moss, will be used as bedding for the herd. The separated liquid will gravity flow into the dairy's storage lagoon and can be pumped through an irrigation nozzle for field spreading.

In addition, the system can convert the waste into biogas which is used to fuel a combined heat and power generator that can consistently generate a minimum of 250 kWh of electricity. The local utility company, through its cow power program, will purchase 3-phase power under contract with Green Mountain Dairy.
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Comment:Vermont dairy installs biodigester--sells energy it generates to utility company.
Publication:Agri Marketing
Article Type:Brief article
Geographic Code:1U1VT
Date:May 1, 2006
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