International Journal of Chemical Studies
Vol. 1, Issue 4 (2013)
Adsorption of Heavy Metal (Cd2+, Cr6+ and Pb2+) from Synthetic Waste Water by Coconut husk Adsorbent
Author(s): Lokendra Singh Thakur, Pradeep Semil
Abstract: Industrial waste constitutes the major source of various kinds of metal pollution in natural water. There are at least 20 metals which cannot be degraded or destroyed. The important toxic metals are Cd2+, Cr6+ and Pb2+. There are numerous methods currently employed to remove and recover the metals from our environment and many physico-chemical methods have been proposed for their removal from wastewater. Adsorption is one of the alternatives for such cases and is an effective purification and separation technique used in industry especially in water and wastewater treatments. Cost is an important parameter for comparing the adsorbent materials. Therefore, there is increasing research interest in using alternative low-cost adsorbents. The use of coconut husk as the low-cost adsorbents was investigated as a replacement for current costly methods of removing heavy metal ions from aqueous solutions. The experiment results showed that maximum removal of Chromium ion by coconut husk adsorbent is 83% and for Cadmium & Lead ion are 94% at optimum condition.
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Fig. 1: Effect of contact time on %removal of cadmium ion by coconut husk adsorbent.
Fig. 2: Effect of contact time on %removal of chromium ion by coconut husk adsorbent.
Fig. 3: Effect of contact time on %removal of lead ion by coconut husk adsorbent.
Pages: 64-72 | 1142 Views 15 Downloads
How to cite this article:
Lokendra Singh Thakur, Pradeep Semil. Adsorption of Heavy Metal (Cd2+, Cr6+ and Pb2+) from Synthetic Waste Water by Coconut husk Adsorbent. Int J Chem Stud 2013;1(4):64-72.