| Biosorption and desorption of Cd^2＋ from wastewater by dehydrated shreds of Cladophorafascicularis |
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| 引用本文： | 邓莉萍,朱校斌,苏营营,苏华,王新亭.Biosorption and desorption of Cd^2＋ from wastewater by dehydrated shreds of Cladophorafascicularis[J].中国海洋与湖沼学报,2008,26(1):45-49. |
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| 作者姓名： | 邓莉萍 朱校斌 苏营营 苏华 王新亭 |
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| 作者单位： | Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China，Graduate School，Chinese Academy of Sciences，Beijing 100049，China |
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| 基金项目： | Supported by China＇s 973 Program （No. 2002CB412402） and Key Project of the Chinese Academy of Sciences （No. KJCX315W-215）. |
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| 摘 要： | The adsorption and desorption of algae Cladophora fascicularis and their relation with initial Cd^2＋ concentration, initial pH, and co-existing ions were studied. Adsorption equilibrium and biosorption kinetics were established from batch experiments. The adsorption equilibrium was adequately described by the Langmuir isotherm, and biosorption kinetics was in pseudo-second order model. The experiment on co-existing ions showed that the biosorption capacity of biomass decreased with an increasing concentration of competing ions. Desorption experiments indicated that EDTA was efficient desorbent for recovery from Cd^2＋. With high capacities of metal biosorption and desorption, the biomass of Cladophora fascicularis is promising as a cost-effective biosorbent for the removal of Cd^2＋ from wastewater.
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| 关 键 词： | 废水处理 生物吸附作用 镉 解吸附作用 脱水 |
| 文章编号： | 10.1007/s00343-008-0045-0 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-07-18 |
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