Development of a passive bioremediation process based on sulfate-reduction to treat arsenic-containing acidic mine water

Fabienne Battaglia-Brunet 1 Catherine Joulian 1 Corinne Casiot 2
1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 HSM - Hydrosciences Montpellier
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.
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https://hal-brgm.archives-ouvertes.fr/hal-01312147
Contributeur : Fabienne Battaglia-Brunet <>
Soumis le : mercredi 4 mai 2016 - 21:35:14
Dernière modification le : mardi 28 mai 2019 - 13:48:07

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BRGM | CNRS | AGROPOLIS | B3ESTE | UNIV-MONTPELLIER

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Fabienne Battaglia-Brunet, Catherine Joulian, Corinne Casiot. Development of a passive bioremediation process based on sulfate-reduction to treat arsenic-containing acidic mine water . Sixth International Congress on Arsenic in the Environment (As2016), Jun 2016, Stockholm, Sweden. 2016, Proceedings of the Sixth International Congress on Arsenic in the Environment (As2016). ⟨10.1201/b20466-63⟩. ⟨hal-01312147⟩

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