{"title":"Optimization Study of Adsorption of Nickel(II) on Bentonite ","authors":"B. Medjahed, M. A. Didi, B. Guezzen","volume":135,"journal":"International Journal of Chemical and Molecular Engineering","pagesStart":144,"pagesEnd":149,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10008692","abstract":"<p>This work concerns with the experimental study of the adsorption of the Ni(II) on bentonite. The effects of various parameters such as contact time, stirring rate, initial concentration of Ni(II), masse of clay, initial pH of aqueous solution and temperature on the adsorption yield, were carried out. The study of the effect of the ionic strength on the yield of adsorption was examined by the identification and the quantification of the present chemical species in the aqueous phase containing the metallic ion Ni(II). The adsorbed species were investigated by a calculation program using CHEAQS V. L20.1 in order to determine the relation between the percentages of the adsorbed species and the adsorption yield. The optimization process was carried out using 2<sup>3<\/sup>&nbsp;factorial designs. The individual and combined effects of three process parameters, i.e. initial Ni(II) concentration in aqueous solution (2.10<sup>&minus;3<\/sup>&nbsp;and 5.10<sup>&minus;3<\/sup>&nbsp;mol\/L), initial pH of the solution (2 and 6.5), and mass of bentonite (0.03 and 0.3&nbsp;g) on Ni(II) adsorption, were studied.<\/p>\r\n","references":"[1]\tS. S. Ahluwalia, D. Goyal. Microbial and plant derived biomass for removal of heavy metals from wastewater. Biores Technol 2007; 98:2243\u201357.\r\n[2]\tS. Wang, X. Shi. Molecular mechanism of metal toxicity and carcinogenesis. Mol Cell Biochem 2001; 222:3\u20139.\r\n[3]\tE. Denkhause, K. Salnikov. Nickel essentiality, toxicity and carcinogenicity. Crit Rev Uncol Hematol 2002;42(1):35\u201356.\r\n[4]\tT. K. Kurniawan, GYS. Chan, W. Lo, S. Babel. Comparison of low-cost adsorbents for treating wastewaters laden with heavy metals. Sci Total Environ 2006; 366:409\u201326.\r\n[5]\tS. Liang, X. Guo, N. Feng, Q. Tian. Isotherms, kinetics and thermodynamic studies of adsorption of Cu2+ from aqueous solution by Mg2+\/K+ orange peel adsorbents. J Hazard Mater 2010; 174:756\u201362.\r\n[6]\t\tS. Wang, H. Li, Kinetic modeling and mechanism of dye adsorption on unburned carbon, Dyes Pigments 72 (2007) 308\u2013314.\r\n[7]\tV. J. P. Vilar, C. M. S. Botelho, R. A. R. Boaventura, Influence of pH, ionic strength and temperature on lead biosorption bygelidium and agar extraction algal waste, Process Biochem. 40 (2005) 3267\u20133275.\r\n[8]\tG. E. P. Box, W. G. Hunter, J. Stuart, Statistics for Experimenters, second ed., John Wiley and Sons, New York, NY,2005 p. 633.\r\n[9]\tK. Vimalashanmugam, T. Viruthagiri, \u201cResponse surface methodology optimization of process parameters for xylanase production by Aspergillus fumigatus in SSF using central composite design,\u201d International Journal of Engineering Research and Applications, vol.2, pp.277-287, 2012.\r\n[10]\tS. J. Nejad, H. Abolghasemi, Mohammad A. Moosaviana, Mohammad G. Maragheh, \u201cFractional factorial design for the optimization of supercritical carbon dioxide extraction of La3+, Ce3+ and Sm3+ ions from a solid matrix using bis(2,4,4-trimethylpentyl)dithiophosphinic acid + tributylphosphate,\u201d chemical engineering research and design, vol. 89, pp.827-835, 2011.\r\n[11]\tB. Das and N. K. Mondal, \u201cCalcareous soil as a new adsorbent to remove lead from aqueous solution: equilibrium, kinetic and thermodynamic study,\u201d Universal Journal of Environmental Research and Technology, vol. 1, no. 4, pp. 515\u2013530, 2011.\r\n[12]\tI. Puigdomenech, \u201cHYDRA (Hydrochemical EquilibriumConstant Database) and MEDUSA (Make Equilibrium Diagrams Using Sophisticated Algorithms) Programs,\u201d Royal Institute of Technology, Sweden. http:\/\/www.kemi.kth.se\/medusa.\r\n[13]\t\u201cProgram for Calculating Chemical Equilibria in Aquatic Systems,\u201d RIVM, Bilthoven, 2004. http:\/\/www.cheaqs.eu\/. Accessed on 16\/05\/2016.\r\n[14]\tG. P. E. Box, W. G. Hunter, and J.S. Hunter, \u201cStatistics for Experimenters,\u201d2nd ed., Wiley, Hoboken, NJ, pp. 363-385, 1978.\r\n[15]\tB. Guezzen, M.A. Didi and B. Medjahed, \u201cOptimization of Process Parameters using Response Surface Methodology for the Removal of Zinc (II) by Solvent Extraction\u201d WASET J. International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering Vol:11, No:2, 2017.\r\n[16]\tB. Medjahed, M. A. Didi and D. Villemin\u201cFactorial design in optimization of extractionprocedure for copper (II) using Aliquat 336 and Tri-nbutylphosphate based supported liquid membrane. Desalination and Water Treatment 52 (2014) 3237\u20133245.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 135, 2018"}