| Biosorption of cadmium(II) and lead(II) ions from aqueous solutions onto dried activated sludge |
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| 作者姓名： | CHOVELON Jean-marc NICOLE Jaffrezic-renault |
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| 作者单位： | Application of Chemistry and Environment Laboratory UMR CNRS 5634 University Claude Bernard Lyon 1 43 Boulevard du 11 Novemvre 1918 Villeurbanne Cedex 69622 France，CEGELY UMR/CNRS 5005 Central University of Lyon 69134 Ecully Cedex France |
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| 基金项目： | The National New Century Scholarship (No. NCET-05-0387)，the France-China P2R Programs and the Specialized Research Fundfor the Doctoral Program of Higher Education (No. 20050247016) |
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| 摘 要： | Introduction Toxic metal compounds are frequently used in industrial processes and are widely distributed in the environment. Due to their extended persistence in biological systems and tendency to bioaccumulate as they move up the food chain, they repres…
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Biosorption of cadmium(II) and lead(II) ions from aqueous solutions onto dried activated sludge |
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| CHOVELON Jean-marc,NICOLE Jaffrezic-renault.Biosorption of cadmium(II) and lead(II) ions from aqueous solutions onto dried activated sludge[J].Journal of Environmental Sciences,2006(5). |
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| Authors: | WANG Xue-jiang XIA Si-qing CHEN Ling ZHAO Jian-fu CHOVELON Jean-marc NICOLE Jaffrezic-renault |
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| Institution: | WANG Xue-jiang1,2,3,XIA Si-qing1,CHEN Ling1,ZHAO Jian-fu1,CHOVELON Jean-marc2,NICOLE Jaffrezic-renault3 |
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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(II) and Pb(II)) followed the pseudo-second-order rate expression. The equi- librium 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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| Keywords: | biosorption adsorption isotherm cadmium lead activated sludge |
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