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An Environmental Approach in Metal Recovery from Secondary Resources: Bioleaching



Research on biohydrometallurgy of secondary metal resources is primarily focussed on the leaching of valuable metals. For secondary metal resources biological processing can be an economically more effective and environmentally friendlier alternative to traditional hydrometallurgical and pyrometallurgical processes. Therefore, Bioydrometallurgy is a rapidly evolving biotechnology that has already provided revolutionary solutions to old problems associated with recovery of metals by conventional pyrometallurgy and chemical metallurgy. This review evaluates various pr ocesses of recovery of metals from waste materials and commercial applications are di scussed. Case studies and future technology directions are reviewed. Keywords: Biohydrometallurgy; Metal recovery; Recycling; Secondary metal resources
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