Modification of granular activated carbon using low molecular weight polymer for enhanced removal of Cu2+ from aqueous solution

被引:6
作者
Yin, C. Y. [1 ]
Aroua, M. K. [2 ]
Daud, W. M. A. W. [2 ]
机构
[1] Univ Teknol MARA, Fac Chem Engn, Shah Alam 40450, Malaysia
[2] Univ Malaya, Fac Engn, Dept Chem Engn, Kuala Lumpur 50603, Malaysia
关键词
adsorption; chelating polymer; copper; palm shell activated carbon;
D O I
10.2166/wst.2007.682
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Palm shell activated carbon was modified via surface impregnation with polyethyleneimine ( PEI) to enhance removal of Cu2+ from aqueous solution in this study. The effect of PEI modification on batch adsorption of Cu2+ as well as the equilibrium behavior of adsorption of metal ions on activated carbon were investigated. PEI modification clearly increased the Cu2+ adsorption capacities by 68% and 75.86% for initial solution pH of 3 and 5 respectively. The adsorption data of Cu2+ on both virgin and PEI-modified AC for both initial solution pH of 3 and 5 fitted the Langmuir and Redlich-Peterson isotherms considerably better than the Freundlich isotherm.
引用
收藏
页码:95 / 101
页数:7
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