| Biosorption of cadmium(Ⅱ) and lead(Ⅱ) ions from aqueous solutions onto dried activated sludge |
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| 作者姓名： | WANG Xue-jiang XIA Si-qing CHEN Ling ZHAO Jian-fu CHOVELON Jean-mar NICOLE Jaffrezic-renault |
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| 作者单位： | [1]State Key Laboratory of Pollution Control and Resources Reuse, Yongji University, Shanghai 200092, China [2]Application of Chemistry and Environment Laboratory, UMR CNRS 5634, University Claude Bernard Lyon I, 43 Boulevard du 11 Novemvre 1918,Villeurbanne Cedex 69622, France [3]CEGELY, UMR/CNRS 5005, Central University of Lyon, 69134 Ecully Cedex, France |
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| 基金项目： | Foundation item： The National New Century Scholarship （No. NCET-05-0387）; the France-China P2R Programs and the Specialized Research Fund tbr the Doctoral Program of Higher Education （No. 20050247016）; |
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| 摘 要： | The removal of heavy-metal ions from aqueous solutions by using dried activated sludge has been investigated in batch systems. Effect of solution pH, initial metal ion concentration, and temperature were determined. The results of the kinetic studies showed that the uptake processes of the two metal ions（Cd（Ⅱ） and Pb（Ⅱ）） followed the pseudo-second-order rate expression. The equilibrium data fitted very well to both the Langmuir and Freundlich adsorption models. The FT-IR analysis showed that the main mechanism of Cd（Ⅱ） and Pb（Ⅱ） biosorption onto dried activated sludge was their binding with amide I group.
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| 关 键 词： | 生物吸着 吸附作用 镉 淤泥 金属化合物 |
| 文章编号： | 1001-0742（2006）02-0840-05 |
| 收稿时间： | 2005-10-14 |
| 修稿时间： | 2006-02-14 |
Biosorption of cadmium(II) and lead(II) ions from aqueous solutions onto dried activated sludge |
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| WANG Xue-jiang,XIA Si-qing,CHEN Ling,ZHAO Jian-fu,CHOVELON Jean-mar,NICOLE Jaffrezic-renault.Biosorption of cadmium(II) and lead(II) ions from aqueous solutions onto dried activated sludge[J].Journal of Environmental Sciences,2006,18(5):840-844. |
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| Authors: | WANG Xue-jiang XIA Si-qing CHEN Ling ZHAO Jian-fu CHOVELON Jean-marc and NICOLE Jaffrezic-renault |
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| Institution: | State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China. xjwang3@yahoo.com.cn |
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| Abstract: | The removal of heavy-metal ions from aqueous solutions by using dried activated sludge has been investigated in batch systems. Effect of solution pH, initial metal ion concentration, and temperature were determined. The results of the kinetic studies showed that the uptake processes of the two metal ions(Cd(lII) and Pb(ll)) followed the pseudo-second-order rate expression. The equilibrium data fitted very well to both the Langmuir and Freundlich adsorption models. The FT-IR analysis showed that the main mechanism of Cd(ll) and Pb(II) biosorption onto dried activated sludge was their binding with amide I group. |
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| Keywords: | biosorption adsorption isotherm cadmium lead activated sludge |
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