Extracting gold from ore is a poisonous business. The most common method is cyanide leaching, where cyanide salts in solution are used to suck the gold out from its ore. You get gold, but you also get ...

Researchers at Flinders University revealed a method to extract gold from both ore and electronic waste using a mix of saltwater, ultraviolet (UV) light, and a recyclable polymer. This technique ...

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