Sewage Sludge Is Flush With Gold and Platinum

Whoever coined the phrase “you can’t polish a turd” may have been full of crap.

As it turns out, a city of roughly one million inhabitants flushes $13 million worth of precious metals down toilets and sewer drains on an annual basis, according to a new study from scientists at Arizona State University. Although those scientists didn’t say whether extracting these metals from sewage sludge is economically feasible, they are encouraging us to look at wastewater as a commodity, rather than,

Leave a Reply

Your email address will not be published. Required fields are marked *