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ISSN: 2157-7587

Hydrology: Current Research
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Research Article

Phenol Adsorption onto Various Soil Composite Membranes: Insight into Process Kinetics, Modelling and Optimisation Using Response Surface Methodology

Papita Das1*, Sudipto Goswami1, Priya Banerjee2and Siddhartha Datta1
1Department of Chemical Engineering, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata-700 032, India
2Department of Environmental Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700 019, India
Corresponding Author : Papita Das
Associate Professor, Department of Chemical Engineering
Jadavpur University, Kolkata, India
Tel: (033)24572696
Fax: (033)24146378
E-mail: [email protected]
Received: April 10, 2015 Accepted: May 11, 2015 Published: May 13, 2015
Citation:Das P, Goswami S, Banerjee P, Datta S (2015) Phenol Adsorption onto Various Soil Composite Membranes: Insight into Process Kinetics, Modelling and Optimisation Using Response Surface Methodology. Hydrol Current Res 6:203. doi:10.4172/2157-7587.1000203
Copyright: © 2015 Das P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

The present study investigates the potential of soil and soil composites for removal of phenol from solution on a comparative scale. Different experimental parameters were optimized with a novel approach of response surface methodology (RSM) and a central composite design (CCD) for achieving maximum efficiency. Maximum adsorption efficiency (1.44 mg g-1) was obtained at initial pH 5.5, an adsorbent dosage of 7.5 g L-1 and a treatment time of 32.5 mins at a temperature of 313 K as predicted by the RSM design. The phenomenon best fitted the Temkin isotherm at different temperatures. The process was guided by the pseudo-secondorder kinetic model and was analyzed to be spontaneous, endothermic and chemisorption in nature. Characterization of soil particles using Scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy showed the changes in its structure and surface morphology both before and after use and explained it’s prospective as a good and environmentally benign adsorbent in very low quantities. Hence, this adsorbent can be implemented as an efficient liner material for the removal of phenol and phenolic compounds from wastewater.

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