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Received January 22, 2014
Accepted June 24, 2014
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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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Abatement of Cr (VI) from wastewater using a new adsorbent, cantaloupe peel : Taguchi L16 orthogonal array optimization
Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran 1**Social Determinants of Health Research Center (SDHRC), Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran 2Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran 3School of Civil and Environmental Engineering, University of Technology, Sydney (UTS), Post Box 129, Broadway, NSW 2007, Sydney, Australia 4DelcoWater, 3735 Thatcher Ave, Saskatoon, SK, S7R 1B8, Canada
Asgari@umsha.ac.ir
Korean Journal of Chemical Engineering, December 2014, 31(12), 2207-2214(8), 10.1007/s11814-014-0172-6
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Abstract
Taguchi orthogonal design was applied for multivariate optimization of Cr (VI) abatement by cantaloupe peel powder (CPP), as a novel adsorbent, from industrial wastewater in a batch mode. Effective factors in the adsorption process, such as temperature, CPP dose, Cr (VI) concentration, wastewater pH, and contact time, were considered using an L16 orthogonal array design. The best conditions for adsorbing of Cr (VI) were determined by the Taguchi method and desirability approach as pH of 2, chromium concentration of 100mg/L, contact time of 5min, CPP dosage of 0.5 g/L, and wastewater temperature of 25 oC. Analysis of variance results indicated that the pH was the most important variable influencing the chromium removal percentage, and its contribution value was obtained 45.01%. The Langmuir model proved best fit for the experimental data and maximum adsorption capacity of Cr (VI) onto CPP was obtained 166.25mg/g. The final part of the study includes an examination of the CPP through an analysis of the removal of chromium from real industrial wastewater. It can be concluded that the CPP presents a promising and efficient alternative for eliminating of Cr (VI) from industrial wastewaters.
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Wang XS, Li ZZ, Tao SR, J. Environ. Manage., 90, 729 (2009)
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Zolfagharia G, Esmaili-Sari A, Anbia M, Younesi H, Amirmahmoodi S, Ghafari Nazari A, J. Hazard. Mater., 192, 1055 (2011)
Sahu JN, Acharya J, Meikap BC, J. Hazard. Mater., 172(2-3), 818 (2009)
Sadeghi SH, Moosavi V, Karami A, Behnia N, J. Hydrol., 448-449, 180 (2012)
Taguchi G, Introduction to quality engineering, McGraw-Hill New York, USA (1990)
Chou CS, Yang RY, Chen JH, Chou SW, Powder Technol., 199, 271 (2010)
Cox NJ, Warburton J, Armstrong A, Holliday VJ, Earth Surf. Proc. Land., 33, 39 (2008)
APHA (American Public Health Association), Standard methods for the examination of water and wastewater, 20th Ed, APHA, AWWA, WEF, Washington DC, USA (1998)
Asgari G, Roshani B, Ghanizadeh G, J. Hazard. Mater., 217-218, 132 (2012)
Ghanizadeh G, Asgari G, React. Kinet. Mech. Catal., 102, 142 (2011)
Rao M, Parwate AV, Bhole AG, Waste Manage., 22, 830 (2002)
Bhattacharya AK, Naiya TK, Mandal SN, Das SK, Chem. Eng. J., 137, 541 (2008)
Bansal M, Garg U, Singh D, Garg VK, J. Hazard. Mater., 162, 320 (2009)
Singh RS, Mondal MK, Korean J. Chem. Eng., 29, 1787 (2012)
Seo H, Lee M, Wang S, Environ. Eng. Res., 18, 45 (2013)
Nemr AE, J. Hazard. Mater., 161, 141 (2009)
Memon JR, Memon SQ, Bhanger MI, El-Turki A, Hallam KR, Allen GC, Colloids Surf., B., 70, 237 (2009)
Foo KY, Hameed BH, Chem. Eng. J., 156, 10 (2012)
