E-Waste: Recovery of Precious Materials and Minimization of Environmental Impact by Separating Toxic Metals by RK Singhal* in Environmental Analysis & Ecology Studies
A relatively recent recognized hazardous waste product comes from discarded electrical and electronic equipment and is categorized as E-waste. E-Waste is chemically and physically distinct from other forms of household wastes. It contains both valuable and hazardous materials that require special handling and recycling methods to avoid environmental contamination and detrimental effects on human health. The chemical composition of E-waste varies with the development of new technologies. E-waste contains valuable metals (Ag, Au, Cu, Pt, In, Ga, etc.) as well as potential environmental contaminants, especially Pb, Sb, Hg, Cd, Ni, As, polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs). In addition to the discarded electrical and electronic equipment, the other E-waste materials will come from the Photovoltaic Cell (PV) used for the conversion of sunlight into electricity. As of now global installed PV capacity is around 300GW and is expected to further rise to 4,500GW by 2050. At the end of their life these PV will be treated as E-waste
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