observatornews.ro/eveniment/electronicele-aruncate

Old electronic devices may contain valuable metals like gold, which can be extracted using a new environmentally friendly method developed by researchers at ETH Zurich. This innovative process utilizes a byproduct from cheese production to attract and retain precious metals during extraction. In an experiment, scientists successfully recovered a small nugget of gold from 20 old computer motherboards, highlighting the potential for recycling electronic waste sustainably. This discovery could lead to more efficient recycling methods, encouraging people to recycle rather than discard old electronics.