Researchers turn manure into fuel for cars

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Researchers at the vehicle research Institute at Western Washington University in Bellingham, Wash., have developed a way to power cars using manure.

First, the researchers pump manure into a storage tank. After 21 days, they use garden hoses to siphon the floating methane out of the tank. The methane is then purified to remove other gases before it is pumped into a car.

The technology could mean cheaper fuel for many drivers. Currently, the natural gas created from the manure is one-fifth the price of regular gasoline at the pump, notes Eric Leonhardt, engineering technology professor and director of the Vehicle Research Institute.

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