| Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida | |
| Deng, Liping1,2; Zhang, Yang1,2; Qin, Jie3; Wang, Xinting1; Zhu, Xiaobin1 | |
| 2009-03-01 | |
| 发表期刊 | MINERALS ENGINEERING
 |
| ISSN | 0892-6875 |
| 卷号 | 22期号:4页码:372-377 |
| 文章类型 | Article |
| 摘要 | Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida was investigated in batch experiments. The influence of pH, algal dosage, initial Cr(VI) concentration, temperature and coexisting anions on removal efficiencies of C. albida was studied. Cr(VI) removal process was influenced significantly by the variation of pH, and the optimum pH was chosen at a range of 1.0-3.0. The optimum algal dosage 2 g/L was used in the experiment. The removal rate of Cr(VI) was relatively rapid in the first 60 min, but then the rate decreased gradually. Removal mechanism was studied by analyzing Cr(VI) and total Cr in the solution. Biosorption and bioreduction were involved in the Cr(VI) removal. Biosorption of Cr(VI) was the first step. followed by Cr(VI) bioreduction and Cr(III) biosorption on the algal biomass. Actual industrial wastewater was used to evaluate the practicality of the biomass C. albida. From a practical viewpoint, the abundant and economic biomass C. albida could be used for removal of Cr(VI) from wastewater by the reduction of toxic Cr(VI) to less toxic Cr(III). (C) 2008 Elsevier Ltd. All rights reserved.; Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida was investigated in batch experiments. The influence of pH, algal dosage, initial Cr(VI) concentration, temperature and coexisting anions on removal efficiencies of C. albida was studied. Cr(VI) removal process was influenced significantly by the variation of pH, and the optimum pH was chosen at a range of 1.0-3.0. The optimum algal dosage 2 g/L was used in the experiment. The removal rate of Cr(VI) was relatively rapid in the first 60 min, but then the rate decreased gradually. Removal mechanism was studied by analyzing Cr(VI) and total Cr in the solution. Biosorption and bioreduction were involved in the Cr(VI) removal. Biosorption of Cr(VI) was the first step. followed by Cr(VI) bioreduction and Cr(III) biosorption on the algal biomass. Actual industrial wastewater was used to evaluate the practicality of the biomass C. albida. From a practical viewpoint, the abundant and economic biomass C. albida could be used for removal of Cr(VI) from wastewater by the reduction of toxic Cr(VI) to less toxic Cr(III). (C) 2008 Elsevier Ltd. All rights reserved. |
| 关键词 | Biosorption Chromium(Vi) Cladophora Albida Mechanism Wastewater |
| 学科领域 | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| DOI | 10.1016/j.mineng.2008.10.006 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264581200011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/3468 |
| 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 3.State Ocean Adm, Beihai Monitoring Ctr, Qingdao 266033, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Deng, Liping,Zhang, Yang,Qin, Jie,et al. Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida[J]. MINERALS ENGINEERING,2009,22(4):372-377. |
| APA | Deng, Liping,Zhang, Yang,Qin, Jie,Wang, Xinting,&Zhu, Xiaobin.(2009).Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida.MINERALS ENGINEERING,22(4),372-377. |
| MLA | Deng, Liping,et al."Biosorption of Cr(VI) from aqueous solutions by nonliving green algae Cladophora albida".MINERALS ENGINEERING 22.4(2009):372-377. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| deng-Biosorption of （249KB） | 限制开放 | -- | 浏览 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论