1. A new bacterial strain mediating As oxidation in the Fe-rich biofilm naturally growing in a groundwater Fe treatment pilot unit
- Author
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V. Pedron, G. Grapin, Odile Bruneel, Corinne Casiot, C. Drakidès, J.-C. Personné, Françoise Elbaz-Poulichet, Robert Duran, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Hydrosciences Montpellier (HSM), Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), IRH Génie de l'Environnement (IRH Génie de l'Environnement), and IRH Environnement
- Subjects
DNA, Bacterial ,Environmental Engineering ,Iron ,Health, Toxicology and Mutagenesis ,Population ,0207 environmental engineering ,chemistry.chemical_element ,Pilot Projects ,02 engineering and technology ,010501 environmental sciences ,Biology ,01 natural sciences ,Arsenicals ,Arsenic ,Microbiology ,chemistry.chemical_compound ,Bioremediation ,Oxidation ,[CHIM]Chemical Sciences ,Environmental Chemistry ,020701 environmental engineering ,education ,Phylogeny ,0105 earth and related environmental sciences ,Arsenite ,education.field_of_study ,Bacteria ,Iron treatment process ,Strain (chemistry) ,Public Health, Environmental and Occupational Health ,Biofilm ,Arsenate ,General Medicine ,General Chemistry ,Pollution ,6. Clean water ,Gram-Negative Aerobic Rods and Cocci ,chemistry ,Microbial population biology ,Biofilms ,[SDE]Environmental Sciences ,Oxidation-Reduction ,Water Pollutants, Chemical - Abstract
International audience; 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.
- Published
- 2006