| Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis: Equilibrium, kinetics and environmental effects | |
| Deng, Liping; Su, Yingying; Su, Hua; Wang, Xinting; Zhu, Xiaobin | |
| 2006-07-01 | |
| 发表期刊 | ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
 |
| ISSN | 0929-5607 |
| 卷号 | 12期号:4页码:267-277 |
| 文章类型 | Article |
| 摘要 | Biosorption of Cu2+ and Pb2+ by Cladophora fascicularis was investigated as a function of initial pH, initial heavy metal concentrations, temperature and other co-existing ions. Adsorption equilibriums were well described by Langmuir and Freundlich isotherm models. The maximum adsorption capacities were 1.61 mmol/ g for Cu2+ and 0.96 mmol/ g for Pb2+ at 298K and pH 5.0. The adsorption processes were endothermic and biosorption heats calculated by the Langmuir constant b were 39.0 and 29.6 kJ/ mol for Cu2+ and Pb2+, respectively. The biosorption kinetics followed the pseudo- second order model. No significant effect on the uptake of Cu2+ and Pb2+ by co-existing cations and anions was observed, except EDTA. Desorption experiments indicated that Na(2)EDTA was an efficient desorbent for the recovery of Cu2+ and Pb2+ from biomass. The results showed that Cladophora fascicularis was an effective and economical biosorbent material for the removal and recovery of heavy metal ions from wastewater.; Biosorption of Cu2+ and Pb2+ by Cladophora fascicularis was investigated as a function of initial pH, initial heavy metal concentrations, temperature and other co-existing ions. Adsorption equilibriums were well described by Langmuir and Freundlich isotherm models. The maximum adsorption capacities were 1.61 mmol/ g for Cu2+ and 0.96 mmol/ g for Pb2+ at 298K and pH 5.0. The adsorption processes were endothermic and biosorption heats calculated by the Langmuir constant b were 39.0 and 29.6 kJ/ mol for Cu2+ and Pb2+, respectively. The biosorption kinetics followed the pseudo- second order model. No significant effect on the uptake of Cu2+ and Pb2+ by co-existing cations and anions was observed, except EDTA. Desorption experiments indicated that Na(2)EDTA was an efficient desorbent for the recovery of Cu2+ and Pb2+ from biomass. The results showed that Cladophora fascicularis was an effective and economical biosorbent material for the removal and recovery of heavy metal ions from wastewater. |
| 关键词 | Biosorption Heavy Metal Marine Algae Biosorption Heat Wastewater Desorption Desorbent |
| 学科领域 | Chemistry, Physical ; Engineering, Chemical |
| DOI | 10.1007/s10450-006-0503-y |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242496100004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/6136 |
| 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 | Deng, Liping,Su, Yingying,Su, Hua,et al. Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis: Equilibrium, kinetics and environmental effects[J]. ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY,2006,12(4):267-277. |
| APA | Deng, Liping,Su, Yingying,Su, Hua,Wang, Xinting,&Zhu, Xiaobin.(2006).Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis: Equilibrium, kinetics and environmental effects.ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY,12(4),267-277. |
| MLA | Deng, Liping,et al."Biosorption of copper (II) and lead (II) from aqueous solutions by nonliving green algae Cladophora fascicularis: Equilibrium, kinetics and environmental effects".ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY 12.4(2006):267-277. |
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