Applicability of membrane technologies for the removal of heavy metals

摘要

Heavy metals constitute a major portion of the contaminants in chemical effluents and they cannot be degraded or destroyed.Heavy metals are dangerous due to bioaccumulation.In water bodies,they accumulate in sediment and organisms from where they may transfer into the food chain.Due to their hazard to human health,lead,arsenic,cadmium and mercury are targeted by international environmental legislation.