Spoiled Milk Turns into a Tool for Extracting Gold from E-Waste
Researchers in Switzerland have discovered an innovative way to recover gold from discarded electronics using spoiled milk, offering a greener alternative to toxic chemical extraction methods. With the world producing more than 50 million tons of e-waste each year, scientists at the Swiss Federal Laboratories for Materials Science and Technology (Empa) sought a safe, low-cost […]
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