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Poster
Development of a passive bioremediation process based on sulfate-reduction to treat arsenic-containing acidic mine water
Abstract : Arsenic (As) is one of the priority pollutants commonly associated with mine tailings and Acid Mine Drainages (AMD). A bioprocess based on the activity of acido-tolerant sulfate-reducing bacteria (SRB) was studied at laboratory scale in order to precipitate arsenic sulfide. Enrichments of SRB were obtained from sediments of Carnoulès mining site in France. The enriched SRB-containing community was used to inoculate a bioreactor subsequently fed with a synthetic solution, its composition miming that of the Carnoulès AMD. The substrates were immobilized inside the bioreactor in order to treat water in a passive way. Results show the feasibility of selective precipitation of arsenic versus iron in a passive bioreactor fed with AMD.
https://hal-brgm.archives-ouvertes.fr/hal-01312147
Contributeur : Fabienne Battaglia-Brunet Connectez-vous pour contacter le contributeur
Soumis le : mercredi 4 mai 2016 - 21:35:14
Dernière modification le : jeudi 14 octobre 2021 - 12:22:29
Contributeur : Fabienne Battaglia-Brunet Connectez-vous pour contacter le contributeur
Soumis le : mercredi 4 mai 2016 - 21:35:14
Dernière modification le : jeudi 14 octobre 2021 - 12:22:29