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Conventional And Innovative Techniques For Removal Of Heavy Metals From Electroplating Industry Waste Water

Authors: Dr. Monika Singh* and Dr.Susan Verghese.P;

Conventional And Innovative Techniques For Removal Of Heavy Metals From Electroplating Industry Waste Water

Abstract

The main goal today is to adopt appropriate measures and develop suitable techniques for removing heavy metals from waste water released from industrial operations. The major constituents in the waste water being generated from the metal finishing processes are cyanides, various metal ions [Fe, Cu, Ni, Ag, Mn, Pb, Zn and Cr(VI)] oils and greases, organic solvents, acids and alkalies. The characteristics of the waste stream from electroplating industries are so toxic and corrosive due to the presence of these heavy metals. The present paper reveals the electroplating industry operations which involve use of heavy metals and toxic chemicals and finally result in increased contamination and load of these metals in their waste stream discharges. The paper focuses on various easily available methods as chemical precipitation, low cost novel adsorption through coconut shell, mango seed and shell, bagasse, waste tea leaves, wood barks and usar soil, membrane processes, which are capable of 90% -100% removal of these metals, bioremoval methods, removal by minerals and removal by newer technique as semiconductor photo catalysis technology.

Keywords

Heavy Metal, Electroplating, Waste water, Removal Techniques

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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