Sponge made from cheese production byproducts pulls 22 carat gold from tech trash
Swiss researchers from ETH Zurich developed a process to extract gold from electronic waste using whey proteins from cheese ...
Graphene oxide and chitosan sponge found to be ten times more efficient at removing gold from e-waste
Measurement prior to treatment showed gold concentrations of 3 ppm. The newly developed sponge was able to extract ...