A new bacterial strain mediating As oxidation in the Fe-rich biofilm naturally growing in a groundwater Fe treatment pilot unit

被引：20

作者：

Casiot, C.

Pedron, V.

Bruneel, O.

Duran, R.

Personne, J. C.

Grapin, G.

Drakides, C.

Elbaz-Poulichet, F.

机构：

[1] Univ Montpellier 2, UMR 5569, CCMSE, Lab Hydrosci Montpellier, F-34095 Montpellier 05, France

[2] Univ Pau & Pays Adour, IBEAS, EA 3525, Lab Ecol Mol Microbiol, F-34013 Pau, France

[3] IRH Environm, F-54515 Vandoeuvre Les Nancy, France

来源：

CHEMOSPHERE | 2006年 / 64卷 / 03期

关键词：

arsenic; oxidation; bacteria; iron treatment process;

D O I：

10.1016/j.chemosphere.2005.11.072

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A bacterial strain B2 that oxidizes arsenite into arsenate was isolated from the biofilm growing in a biological groundwater treatment process used for Fe removal. This strain is phylogenetically and morphologically different from the genus Leptothrix commonly encountered in biological iron oxidation processes. T-RFLP fingerprint of the biofilm revealed that this isolated strain B2 corresponds to the major population of the bacterial community in the biofilm. Therefore, it is probably one of the major contributors to arsenic removal in the treatment process. (c) 2005 Elsevier Ltd. All rights reserved.

引用

收藏

页码：492 / 496

页数：5

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