"Revolutionary Method Uses Food Waste Byproduct to Extract Gold Sustainably"
Researchers at ETH Zurich have developed a groundbreaking method to extract gold from old motherboards using food waste byproduct, specifically whey from the cheesemaking industry. The process involves creating a sponge from whey to collect gold from e-waste in an acid bath, followed by high heat to form nuggets. The value of the extracted gold is 50 times more than the cost of the process, making it commercially viable and environmentally sustainable. This innovative technique offers a more sustainable and profitable alternative to current methods, contributing to e-waste recycling and potentially making electronic devices more affordable for consumers.