Gold in Your Junk Drawer: Scientists Use Cheese Waste to Extract Precious Metals

Researchers at ETH Zurich have unveiled a breakthrough in e-waste recycling using a whey-protein amyloid aerogel designed to pull gold ions from acid-dissolved electronic scrap. This innovative method leverages cheese waste to recover high-purity metals, turning discarded hardware into a viable source of precious materials.
The implications for the circular economy are profound, as the team successfully recovered a 450-milligram nugget of 22-carat gold from just 20 old computer motherboards. This scientific milestone, published in Advanced Materials, paves the way for more sustainable urban mining practices and reduces the environmental footprint of traditional metal extraction.
This is a summarized and adapted version by Artificial Intelligence. To read the complete original story, visit the official source.
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