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REMOVAL OF TOXIC METALS FROM AQUEOUS ENVIRONMENT USING VARIOUS ADSORBENTS: A REVIEW

Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.5, No. 3)

Publication Date:

Authors : ; ;

Page : 79-87

Keywords : Toxic metals; adsorbents; adsorbate; aqueous environment;

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Abstract

In Recent decades, there has been an increasing public awareness of the long - term effect of water containing dissolved toxic metal ions. Toxic metals are known to be detrimental to plants, animals and humans. Even at very low concentration they adversely i mpair the nervous, digestive and skeletal system. Toxic metal contamination has been a crucial issue because these metals tend to persist and accumulate in the environment. Aquatic environment are particularly sensitive to toxic metal contamination possibl y due to the structure of their food chain. This is because toxic pollutants are directly or indirectly introduced into aqueous environment significantly as a result of various industrial effluent injections in natural water bodies. In this review, presenc e of heavy metals in aqueous environment, its non bio - degradable properties, its high toxicity, followed by removal of these toxic metals using different techniques are discussed.

Last modified: 2016-03-08 14:33:25