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UConn professor seeks to turn grease into fuel

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STORRS, Conn. (AP) — A year ago, Richard Parnas had never heard of brown grease: sticky, stinky, remnants of sludge sucked from grease traps at restaurants, bars and commercial kitchens. The glop for years has been considered useless, a common clog-inducer at sewage treatment plants, often burned as costly waste. Parnas immediately saw the potential, one that he hopes could change the fuel...