The waste in your body might not be as much of a waste as you think. At a meeting of the American Chemical Society, researchers have announced that they are working on a way to extract tons of valuable metals from sewage.
A study published in Environmental Science and Technology earlier this year found that the waste from 1 million Americans might contain metal (including gold, silver, titanium, lead, and zinc) worth up to $13 million. With nearly 320 million people living in the United States, that's a substantial goldmine - if scientists can figure out how sift the valuables from the sludge.
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