The Elements of Innovation Discovered

Gold's latest big cheese in urban mining

Metal Tech News - April 24, 2024

An efficient e-waste recycling process is made possible by whey, a byproduct of cheesemaking.

Scientists in Switzerland have recovered high-purity gold through a scalable process using food scrap-derived sponges that efficiently adsorb the precious metal from tricky e-waste.

The final result is 450 milligrams of 22-carat gold recovered from 20 discarded motherboards.

Because the method utilizes in...

 
 

Reader Comments(1)

Eidolon writes:

This is amazing! 450mgs is about $30 worth of gold today. How many motherboards are thrown away each day in Fairbanks, Anchorage, and Juneau? What about the waste from the acid bath?

 
 
 
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