BIOLEACHING
It is an advanced process used for recovery of metals from electronic waste with help of Fungi and Bacteria. Organisms like Bacillus Sp, Yarrowia lipolytica and Sacchormyces Cerelisiae can separate metals like tin, copper and lead from printed circuit boards when shredded to smaller sizes.
Also bacteria like T.Thiooxidans and T.Ferrooxidans can mobilize ninety percent of copper, nickel, zine and aluminum present in electronic waste.
A bacterium called C.Violaceum is used for separation of Gold from electronic waste and based on experiments it was observed to dissolve fourteen percent of gold from 10 mg of dicyanourate. These organisms can separate metals from electronic waste after they are broken to small pieces through process like shredding.