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篇目详细内容 |
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【篇名】 |
Biosorption of Cd2+ and Cu2+ on immobilized Saccharomyces cerevisiae |
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【刊名】 |
Frontiers of Environmental Science and Engineering |
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【刊名缩写】 |
Front.Environ.Sci.Eng. |
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【ISSN】 |
2095-2201 |
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【EISSN】 |
2095-221X |
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【DOI】 |
10.1007/s11783-011-0206-9 |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2012 |
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【卷期】 |
6
卷1期 |
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【页码】 |
51-58
页,共
8
页 |
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【作者】 |
Fengyu ZAN;
Shouliang HUO;
Beidou XI;
Xiulan ZHAO;
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【关键词】 |
Saccharomyces cerevisiae (S. cerevisiae); biosorption; heavy metals; immobilization; desorption |
【摘要】 |
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The biosorption of Cd2+ and Cu2+ onto the immobilized Saccharomyces cerevisiae (S. cerevisiae) was investigated in this study. Adsorption kinetics, isotherms and the effect of pH were studied. The results indicated that the biosorption of Cd2+ and Cu2+ on the immobilized S. cerevisiae was fast at initial stage and then became slow. The maximum biosorption of heavy metal ions on immobilized S. cerevisiae were observed at pH 4 for Cd2+ and Cu2+. by the pseudo-second-order model described the sorption kinetic data well according to the high correlation coefficient (R2) obtained. The biosorption isotherm was fitted well by the Langmuir model, indicating possible mono-layer biosorption of Cd2+ and Cu2+ on the immobilized S. cerevisiae. Moreover, the immobilized S. cerevisiae after the sorption of Cd2+ and Cu2+ could be regenerated and reused. |
