Photocatalytic Heavy Metal Detoxification from Water Systems

Heavy metals are one of the greatest elevating threat to mankind and other living organisms it is released into environment due increasing dumpsites, transports, industrial sectors. The wastewater containing heavy metal ions easily enters food chain through air, water, soil; results in bioaccumulation biomagnifications human beings. It causes severe chronic health disorders affecting nervous system, circulatory digestive system sensitive organs body. Many conventional techniques such as adsorption, coagulation, flocculation, electrochemical treatment, biological treatment used for reduction aqueous system. photocatalysis method emerging effective ways eliminating toxic from solution. This chapter elaborates principle, mechanism various methods utilized photocatalytic wastewater.