Volume No. 8 Issue No.: 2 Page No.: 196-205 Oct-Dec 2013

 

APPLICATIONS OF CALCIUM IMPREGNATED ACTIVATED CHARCOAL PREPARED FROM Jatropha SEED RESIDUE FOR REMOVAL OF ARSENIC (III) FROM WATER

 

Pathak Vinay Kumar*, Agnihotri Neeraj, Rahman Masihur and Khatoon Naseema

Department of Industrial Chemistry, Integral University, Kursi Road, Lucknow (INDIA)

 

Received on : August 10, 2013

 

ABSTRACT

 

Arsenic removal from water in form of As (III) was investigated using activated charcoal obtained from potential biodiesel plant Jatropha carcus. The surface of activated charcoal was modified with Ca2+ ions using CaCl2. The sorption efficiency was examined through batch system and maximum removal efficiency of 88.09% was observed. The effect of various sorption parameters such as adsorbent dose, contact time, agitation rate and pH were extensively experimented and found to be 10 g/L, 4 hours, 400 osc/min and 10 respectively. These conditions were optimised and percent sorption of adsorbent was studied for different initial As (III) concentrations. Langmuir and Freundlich adsorption isotherms were used to explain the phenomena of adsorption. Related parameters from these isotherms were calculated which established that calcium impregnated activated charcoal obtained from Jatropha seed residue stands neck to neck with other efficient activated charcoals already available and can be potentially used as a cost effective, environmentally safe suitable adsorbent for the removal of As (III) from water.

 

Keywords : Activated carbon, Arsenic, Removal efficiency, Adsorption isotherms, Jatropha carcus

 

 

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