Pulling gold out of e-waste suddenly becomes super-profitable
A new method for recovering high-purity gold from discarded electronics is paying back US$50 for every dollar spent, according to researchers – who found the key gold-filtering substance in cheesemaking, of all places.Society has held gold in high esteem for millennia. More recently, for its technical applications across electronics and microelectronics, aerospace, medicine, biotechnology, and nanotechnology. However, like any metal, gold is a non-renewable resource. And increasingly valuable.In a new study, researchers…