| Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis | |
| Liping Deng; Yingying Su; Hua Su; Xinting Wang; Xiaobin Zhu | |
| 2007-05-08 | |
| 发表期刊 | JOURNAL OF HAZARDOUS MATERIALS
 |
| ISSN | 0304-3894 |
| 卷号 | 143期号:1-2页码:220-225 |
| 文章类型 | Article |
| 摘要 | Biosorption is an effective method to remove heavy metals from wastewater. In this work, adsorption features of Cladophora fascicularis were investigated as a function of time, initial pH, initial Pb(II) concentrations, temperature and co-existing ions. Kinetics and equilibria were obtained from batch experiments. The biosorption kinetics followed the pseudo-second order model. Adsorption equilibria were well described by the Langmuir and Freundlich isotherm models. The maximum adsorption capacity was 198.5 mg/g at 298 K and pH 5.0. The adsorption processes were endothermic and the biosorption heat was 29.6 kJ/mol. Desorption experiments indicated that 0.01 mol/L Na(2)EDTA was an efficient desorbent for the recovery of Pb(II) from biomass. IR spectrum analysis suggested amido or hydroxy, C=O and C-O could combine intensively with Pb(II). (C) 2006 Elsevier B.V. All rights reserved.; Biosorption is an effective method to remove heavy metals from wastewater. In this work, adsorption features of Cladophora fascicularis were investigated as a function of time, initial pH, initial Pb(II) concentrations, temperature and co-existing ions. Kinetics and equilibria were obtained from batch experiments. The biosorption kinetics followed the pseudo-second order model. Adsorption equilibria were well described by the Langmuir and Freundlich isotherm models. The maximum adsorption capacity was 198.5 mg/g at 298 K and pH 5.0. The adsorption processes were endothermic and the biosorption heat was 29.6 kJ/mol. Desorption experiments indicated that 0.01 mol/L Na(2)EDTA was an efficient desorbent for the recovery of Pb(II) from biomass. IR spectrum analysis suggested amido or hydroxy, C=O and C-O could combine intensively with Pb(II). (C) 2006 Elsevier B.V. All rights reserved. |
| 关键词 | Biosorption Lead (Ii) Cladophora Fascicularis Wastewater Desorption |
| 学科领域 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| DOI | 10.1016/j.jhazmat.2006.09.009 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000246465800029 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/6046 |
| 专题 | 海洋生物技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liping Deng,Yingying Su,Hua Su,et al. Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis[J]. JOURNAL OF HAZARDOUS MATERIALS,2007,143(1-2):220-225. |
| APA | Liping Deng,Yingying Su,Hua Su,Xinting Wang,&Xiaobin Zhu.(2007).Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis.JOURNAL OF HAZARDOUS MATERIALS,143(1-2),220-225. |
| MLA | Liping Deng,et al."Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis".JOURNAL OF HAZARDOUS MATERIALS 143.1-2(2007):220-225. |
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