No Mercury, No Cyanide: This is the Safest and Greenest Way to Recover Gold from E-waste
A pool cleaner and a spongy polymer can turn used and discarded electronic items into a treasure trove of gold.
A pool cleaner and a spongy polymer can turn used and discarded electronic items into a treasure trove of gold.
Researchers have been sounding the alarm for years, but the US still has a big mercury pollution problem.