'Poop To Power' Program Turns Pig Manure Into Sustainable Energy

01/01/2012 01:32 pm ET
  • Mother Nature Network

The nearly 9,000 hogs at Loyd Ray Farms in Yadkin County, N.C., produce 400,000 gallons of manure every week. Since the waste had too high a nitrogen content to be used as fertilizer, owner Loyd Bryant used to pump that waste into a local lagoon, where it released methane, ammonia and "an unholy stink," according to the Los Angeles Times.

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