| Biosorption of copper(II) from aqueous solutions by green alga Cladophora fascicularis | |
| Deng, Liping; Zhu, Xiaobin; Wang, Xinting; Su, Yingying; Su, Hua | |
| 2007-08-01 | |
| 发表期刊 | BIODEGRADATION
 |
| ISSN | 0923-9820 |
| 卷号 | 18期号:4页码:393-402 |
| 文章类型 | Article |
| 摘要 | Biosorption is an effective means of removal of heavy metals from wastewater. In this work the biosorption behavior of Cladophora fascicularis was investigated as a function of pH, amount of biosorbent, initial Cu2+ concentration, temperature, and co-existing ions. Adsorption equilibria were well described by Langmuir isotherm models. The enthalpy change for the biosorption process was found to be 6.86 kJ mol(-1) by use of the Langmuir constant b. The biosorption process was found to be rapid in the first 30 min. The presence of co-existing cations such as Na+, K+, Mg2+, and Ca2+ and anions such as chloride, nitrate, sulfate, and acetate did not significantly affect uptake of Cu2+ whereas EDTA substantially affected adsorption of the metal. When experiments were performed with different desorbents the results indicated that EDTA was an efficient desorbent for the recovery of Cu2+ from biomass. IR spectral analysis suggested amido or hydroxy, C=O, and C-O could combine strongly with Cu2+.; Biosorption is an effective means of removal of heavy metals from wastewater. In this work the biosorption behavior of Cladophora fascicularis was investigated as a function of pH, amount of biosorbent, initial Cu2+ concentration, temperature, and co-existing ions. Adsorption equilibria were well described by Langmuir isotherm models. The enthalpy change for the biosorption process was found to be 6.86 kJ mol(-1) by use of the Langmuir constant b. The biosorption process was found to be rapid in the first 30 min. The presence of co-existing cations such as Na+, K+, Mg2+, and Ca2+ and anions such as chloride, nitrate, sulfate, and acetate did not significantly affect uptake of Cu2+ whereas EDTA substantially affected adsorption of the metal. When experiments were performed with different desorbents the results indicated that EDTA was an efficient desorbent for the recovery of Cu2+ from biomass. IR spectral analysis suggested amido or hydroxy, C=O, and C-O could combine strongly with Cu2+. |
| 关键词 | Biosorption Enthalpy Of Biosorption Copper(Ii) Marine Algae Wastewater |
| 学科领域 | Biotechnology & Applied Microbiology |
| DOI | 10.1007/s10532-006-9074-6 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247929200001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/6040 |
| 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,Zhu, Xiaobin,Wang, Xinting,et al. Biosorption of copper(II) from aqueous solutions by green alga Cladophora fascicularis[J]. BIODEGRADATION,2007,18(4):393-402. |
| APA | Deng, Liping,Zhu, Xiaobin,Wang, Xinting,Su, Yingying,&Su, Hua.(2007).Biosorption of copper(II) from aqueous solutions by green alga Cladophora fascicularis.BIODEGRADATION,18(4),393-402. |
| MLA | Deng, Liping,et al."Biosorption of copper(II) from aqueous solutions by green alga Cladophora fascicularis".BIODEGRADATION 18.4(2007):393-402. |
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