Bioremediation of Cr(VI) and Immobilization as Cr(III) by Ochrobactrum anthropi
文献类型：期刊论文
| 作者 | Cheng, YJ; Yan, FB; Huang, F; Chu, WS ; Pan, DM; Chen, Z; Zheng, JS; Yu, MJ; Lin, Z; Wu, ZY
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2010 |
| 卷号 | 44期号:16页码:6357-6363 |
| 通讯作者 | [Cheng, Yangjian ; Yan, Fenbo ; Huang, Feng ; Pan, Danmei ; Chen, Zhi ; Zheng, Jinsheng ; Lin, Zhang] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China ; [Chu, Wangsheng ; Yu, Meijuan ; Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Facil, Hefei 230026, Peoples R China ; [Chu, Wangsheng ; Yu, Meijuan ; Wu, Ziyu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | Bioremediation of Cr(VI) through reduction relies on the notion that the produced Cr(III) may be precipitated or efficiently immobilized. However, recent reports suggest that soluble organo-Cr(III) complexes are present in various chromate-reducing bacterial systems. This work was designed to explore the factors that affect the immobilization of Cr(III) in the Ochrobactrum anthropi system X-ray absorption fine structure analysis on the cell debris clearly verified that coordination of Cr(III) occurs on the surfaces via the chelating coordination with carboxyl- and amido-functional groups However, competitive coordination experiments of Cr(III) revealed that the small molecules such as amino acids and their derivatives or multicarboxyl compounds hold stronger coordination ability with Cr(III) than with cell debris We speculate that it is the preferential coordination of Cr(III) to the soluble organic molecules in the bacterial culture medium that inhibits effective immobilization of Cr(III) on the cells On the basis of this understanding, a strategy with two-step control of the medium was proposed, and this achieved successful immobilization of Cr(VI) as Cr(III) by O anthropi and Planococcus citreus in 5-50 L pilot-scale experiments. |
| 学科主题 | Engineering; Environmental Sciences & Ecology |
| 类目[WOS] | Engineering, Environmental ; Environmental Sciences |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000280727400057 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240073]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cheng, YJ,Yan, FB,Huang, F,et al. Bioremediation of Cr(VI) and Immobilization as Cr(III) by Ochrobactrum anthropi[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2010,44(16):6357-6363. |
| APA | Cheng, YJ.,Yan, FB.,Huang, F.,Chu, WS.,Pan, DM.,...&吴自玉.(2010).Bioremediation of Cr(VI) and Immobilization as Cr(III) by Ochrobactrum anthropi.ENVIRONMENTAL SCIENCE & TECHNOLOGY,44(16),6357-6363. |
| MLA | Cheng, YJ,et al."Bioremediation of Cr(VI) and Immobilization as Cr(III) by Ochrobactrum anthropi".ENVIRONMENTAL SCIENCE & TECHNOLOGY 44.16(2010):6357-6363. |
入库方式： OAI收割
来源：高能物理研究所
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