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Consumer Reports


Food processing wastewater to energy



http://www.jewishworldreview.com | (UPI) -- In laboratory tests, Pennsylvania State University environmental engineers have shown wastewater from three food processors can produce hydrogen gas worth more than $80,000 a year.

"In addition to hydrogen, which can be used as a fuel and industrial feedstock, methane, the main component of natural gas, can be generated from the wastewaters," doctoral candidate Steven Van Ginkel and researcher Sang-Eun Oh, say in a statement.

By using a continuous fermentation process, nearly all of the energy can be stripped out of the wastewater in forms that people can use now, according to Van Ginkel.

"Over 10 billion BTUs of energy from methane could be produced every year at a single one of these food processing plants," says Van Ginkel.

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