US researchers are investigating ways to extract the gold and precious metals from human feces. The group identified gold in waste from American sewage treatment plants at levels which if found in rock could be worth mining. Details were outlined at the 249th national meeting of the American Chemical Society (ACS) in Denver. In addition to gold and silver, human waste also contains amounts of rare earth metals such as palladium and vanadium."We're interested in collecting valuable metals that could be sold, including some of the more technologically important metals, such as vanadium and copper. Imagine explaining our career choice o he family -- off to the poop mines
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