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REMOVAL OF CHROMIUM (VI) FROM WASTE WATER USING MIXED ADSORBENT
D. Krishna, G. Santhosh Kumar, D.R. Prasada Raju

Published in: International Journal of Current Engineering And Scientific Research ( IJCESR)
Volume- 4, Issue-10, pp.28-42, Oct 2017
DPI :-> 16.10046.IJCESR.2017.V4I10.2842.2001



Abstract
The potential for removal of hexavalent chromium from waste water through biosorption using mixed adsorbent powder (Borasus flabellifer coir powder and Ragi husk powder) was investigated in batch experimentation. The percentage removal of chromium (VI) has been found to be dependent on several parameters, like, agitation time, the mixed adsorbent particle size, mixed adsorbent dosage, initial chromium (VI) ion concentration, temperature and pH. The adsorption mechanism was found to follow both the Langmuir and Freundlich models for chromium (VI) adsorption onto mixed adsorbents based on high regression coefficient R2 value. The adsorption behavior followed the second order kinetics. The maximum chromium (VI) metal percentage removal observed at pH 2 is 72.98% and also maximum metal uptake of 18.518 mg/g. The results obtained based on the experimental study showed that mixed adsorbent powder is found to be an effective and economically viable adsorbents for chromium (VI) removal from wastewater

Key-Words / Index Term
chromium (VI), adsorption, mixed adsorbents, adsorption isotherms, adsorption kinetics, thermodynamic parameters.

How to cite this article
D. Krishna, G. Santhosh Kumar, D.R. Prasada Raju , “REMOVAL OF CHROMIUM (VI) FROM WASTE WATER USING MIXED ADSORBENT”, International Journal of Current Engineering And Scientific Research ( IJCESR), 4, Issue-10, pp.28-42, Oct 2017. DPI:16.10046.IJCESR.V4.I10.2001