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Received August 2, 2011
Accepted June 6, 2012
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Dead immobilized Rhizopus Arrhizus as a potential biosorbent for copper removal
Department of Chemical Engineering, University of Engineering & Technology, 54890, Lahore, Pakistan
engr.smalikazmi@gmail.com
Korean Journal of Chemical Engineering, January 2013, 30(1), 95-100(6), 10.1007/s11814-012-0088-y
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Abstract
The contemporary study reveals the potential of dead immobilized Rhizopus Arrhizus (DIRA) by studying the effects of initial pH of solution, contact time, initial Cu(II) concentration, co-ion, desorption and biosorbent reuse on the uptake of Cu(II) from synthetic solution. Optimum pH for Cu(II) biosorption on DIRA was 6.5. Pseudo secondorder kinetic most suitably elucidated the kinetic trend. Removal of Cu(II) by DIRA followed the Freundlich adsorption isotherm. Experiments on effect of temperature revealed endothermic nature of Cu(II) biosorption upon DIRA. Na+ and Ca++ showed synergetic effect, while Mg++ and Zn++ revealed antagonistic effect on the biosorption of Cu(II). It was shown that reuse of DIRA was possible by means of 0.1 M HCl as an eluent.
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Sag Y, Kaya A, Kutsal T, Hydrom., 50, 297 (1998)
Alimohamadi M, Abolhamd G, Keshtkar A, Miner. Eng., 18, 1325 (2005)
Prakasham RS, Merrie JS, Sheela R, Saswathi N, Ramakrishna SV, Environ. Pollut., 104, 421 (1999)
Fan T, Liu YG, Feng BY, Zeng GM, Yang CP, Zhou M, Zhou HZ, Tan ZF, Wang X, J. Hazard. Mater., 160(2-3), 655 (2008)
Liu HL, Chen BY, Lan YW, Cheng YC, Chem. Eng. J., 97(2-3), 195 (2004)
Gad HMH, El-Sayed AA, J. Hazard. Mater., 168(2-3), 1070 (2009)
Kang J, Liu HJ, Zheng YM, Qu JH, Chen JP, J. Colloid Interface Sci., 344(1), 117 (2010)
Hammaini, Gonzalez F, Ballester A, Blazquez ML, Munoz JA, J. Environ. Manage., 84, 419 (2007)
