Science Stats Environment

Stinkin’ rich

Sewage sludge carries loads of valuable metals

Money from sewage illustrated

MONEY FLUSH  Millions of dollars’ worth of gold, silver and other expensive elements swirl down the drain and into sewage treatment plants.

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By Beth Mole

- More than 2 years ago

Sewage may be a gold mine. Researchers have found that sewage entering municipal wastewater treatment plants teems with 58 valuable elements such as gold and copper.