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Bioremediation of Cr(VI) and Immobilization as Cr(III) by Ochrobactrum anthropi
Cheng, YJ; Yan, FB; Huang, F; Chu, WS; Pan, DM; Chen, Z; Zheng, JS; Yu, MJ; Lin, Z; Wu, ZY; Chu WS(储旺盛); Yu MJ(于梅娟); Wu ZY(吴自玉)
2010
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
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
文章类型Article
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.
学科领域Engineering; Environmental Sciences & Ecology
研究领域[WOS]Engineering ; Environmental Sciences & Ecology ; Engineering ; Environmental Sciences & Ecology
DOI10.1021/es100198v
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语种英语
研究领域[WOS]Engineering ; Environmental Sciences & Ecology ; Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000280727400057
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被引频次:58[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240073
专题多学科研究中心
作者单位中国科学院高能物理研究所
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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.
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