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Bioavailability of jarosite for stimulating acid mine drainage attenuation

Coggon, Matthew and Becerra, Caryl Ann and Nüsslein, Klaus and Miller, Karen and Yuretich, Richard and Ergas, Sarina J. (2012) Bioavailability of jarosite for stimulating acid mine drainage attenuation. Geochimica et Cosmochimica Acta, 78 . pp. 65-76. ISSN 0016-7037. doi:10.1016/j.gca.2011.11.030.

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Biological reduction of iron-sulfate minerals, such as jarosite, has the potential to contribute to the natural attenuation of acid mine drainage (AMD) sites. Previous studies of AMD attenuation at Davis Mine, an abandoned pyrite mine in Rowe Massachusetts, provided evidence of iron and sulfate reduction by indigenous bacteria. Jarosite is a large component of the sediment at Davis Mine and may play a role in AMD attenuation. In this study, microcosms were constructed with groundwater and sediment from Davis Mine and amended with glycerol, nitrogen and phosphorus (GNP) and naturally formed natrojarosite. Over time, higher total iron, sulfate, pH and sodium concentrations and lower oxidation–reduction potentials were observed in microcosms amended with GNP and jarosite, compared with unamended microcosms and killed controls. Geochemical modeling predicted jarosite precipitation under microcosm conditions, suggesting that abiotic processes were unlikely contributors to jarosite dissolution. SEM imaging at the jarosite surface showed microbial attachment. Microbial community composition analysis revealed a shift to higher populations of Clostridia, which are known to reduce both iron and sulfate. The results show that jarosite may be utilized as an electron acceptor by iron and/or sulfate reducing bacteria at Davis Mine and its presence may aid in the attenuation of AMD.

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Coggon, Matthew0000-0002-5763-1925
Additional Information:© 2011 Elsevier Ltd. Received 14 June 2010; accepted in revised form 17 November 2011; available online 28 November 2011. The authors would like to thank Dale Callaham, Mike Jercinovic, and Wim de Jeu from the University of Massachusetts, Izabella Farkas from Eötvös Loránd University Budapest and Carl Francis from the Harvard Mineralogical Museum for their help in completing these experiments. This material is based on work supported by the National Science Foundation (NSF) under Grant No. CHE-0221791. Any opinions, findings, conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the NSF. Associate editor: Christopher S. Kim.
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Official Citation:Matthew Coggon, Caryl Ann Becerra, Klaus Nüsslein, Karen Miller, Richard Yuretich, Sarina J. Ergas, Bioavailability of jarosite for stimulating acid mine drainage attenuation, Geochimica et Cosmochimica Acta, Volume 78, 1 February 2012, Pages 65-76, ISSN 0016-7037, 10.1016/j.gca.2011.11.030. (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29413
Deposited By: Ruth Sustaita
Deposited On:22 Feb 2012 21:11
Last Modified:09 Nov 2021 17:06

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