A new energy source has been brought up in the media. The energy source, using household sewage to make electricity. The studies show that by extracting the methane and hydrogen from household sewage, the potential energy of the sewage is increased by 20 percent. The U.S. uses a little under two percent of its power to treat 2,500,000,000,000 gallons of wastewater a year. A gallon of sewage has the energy potential to power a 100 watt light bulb for five minutes. If the water treatment plants could use the energy in the wastewater to power the plant, the U.S. will save trillions of kilowatts of electricity per year.
www.sciencedaily.com/releases/2011/01/110105121131.htm
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