Competitive Fixed-Bed Adsorption of Pb(II), Cu(II), and Ni(II) from Aqueous Solution Using Chitosan-Coated Bentonite

doi:10.1155/2016/1608939

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Resources Management > Periodical Articles > Item 310902800/30910

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/30910

Title:	Competitive Fixed-Bed Adsorption of Pb(II), Cu(II), and Ni(II) from Aqueous Solution Using Chitosan-Coated Bentonite
Authors:	Tsai, Wan-Chi de Luna, Mark Daniel G. Bermillo-Arriesgado, Hanna Lee P. Futalan, Cybelle M. Colades, James I. Wan, Meng-Wei
Contributors:	Kaohsiung Med Univ, Dept Med Lab Sci & Biotechnol Univ Philippines, Dept Chem Engn Univ Philippines, Environm Engn Program, Natl Grad Sch Engn Aecom Philippines Consultants Corp, Environm Business Line Chia Nan Univ Pharm & Sci, Dept Environm Resources Management
Keywords:	activated carbon breakthrough curves metal-ions biosorption column cadmium removal methylene-blue tannic-acid cement iocc water montmorillonite
Date:	2016
Issue Date:	2018-01-18 11:37:45 (UTC+8)
Publisher:	Hindawi Ltd
Abstract:	Fixed-bed adsorption studies using chitosan-coated bentonite (CCB) as adsorbent media were investigated for the simultaneous adsorption of Pb(II), Cu(II), and Ni(II) from a multimetal system. The effects of operational parameters such as bed height, flow rate, and initial concentration on the length of mass transfer zone, breakthrough time, exhaustion time, and adsorption capacity at breakthrough were evaluated. With increasing bed height and decreasing flow rate and initial concentration, the breakthrough and exhaustion time were observed to favorably increase. Moreover, the adsorption capacity at breakthrough was observed to increase with decreasing initial concentration and flowrate and increasing bed height. The maximum adsorption capacity at breakthrough of 13.49 mg/g for Pb(II), 12.14 mg/g for Cu(II), and 10.29 mg/g for Ni(II) was attained at an initial influent concentration of 200 mg/L, bed height of 2.0 cm, and flow rate of 0.4 mL/min. Adsorption data were fitted with Adams-Bohart, Thomas, and Yoon-Nelson models. Experimental breakthrough curves were observed to be in good agreement (R-2 > 0.85 and E% < 50%) with the predicted curves generated by the kinetic models. This study demonstrates the effectiveness of CCB in the removal of Pb(II), Cu(II), and Ni(II) from a ternary metal solution.
Relation:	International Journal of Polymer Science, 1608939
Appears in Collections:	[Dept. of Environmental Resources Management] Periodical Articles

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