Dhruva Shah1, Hema

Abstract

Abstract: There is a global effort to manage metal contamination from electronic trash. Metals may be extracted from E-waste by chemical or biological leaching, however both methods are not without their limits.Electronic The presence of precious metals (PMs) such as gold (Au), silver (Ag), and others makes garbage an attractive recycling target. Two independent experiments have shown that we can recoverpreciousmetalsfromewaste. The sample sizes for the two experiments were 45 and 145 gms of e-waste material, respectively. To extract valuable metals from discarded electronics, we used aqua regia in a chemical leaching procedure. The first experiment yielded concentrations of 7.5316 mg/lit for gold, 624.7231 mg/lit for copper, and 5.752 mg/lit for silver. The concentration of gold, copper, and silver in the second experiment was 22.5595 mg/lit, 3619.7586 mg/lit,