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The Positive Environmental Contribution of Jarosite by Retaining Lead in Acid Mine Drainage Areas

Author

Listed:
  • Maria-Ondina Figueiredo

    (Unity of Mineral Resources and Geophysics, Laboratório Nacional de Energia e Geologia (LNEG), Apartado 7586, 2721-866 Alfragide, Portugal)

  • Teresa Pereira da Silva

    (Unity of Mineral Resources and Geophysics, Laboratório Nacional de Energia e Geologia (LNEG), Apartado 7586, 2721-866 Alfragide, Portugal)

Abstract

Jarosite, KFe 3 (SO 4 ) 2 (OH) 6 , is a secondary iron sulphate often found in acid mine drainage (AMD) environments, particularly in mining wastes from polymetallic sulphide ore deposits. Despite the negative environmental connotation usually ascribed to secondary sulphate minerals due to the release of hazardous elements to aquifers and soils, jarosite acts as an efficient remover and immobilizer of such metals, particularly lead. The mineral chemistry of jarosite is reviewed and the results of a Fe K -edge XANES (X-Ray Absorption Near-Edge Structure) study of K-, Na- and Pb-jarosite are described and discussed within the context of the abandoned old mines of São Domingos and Aljustrel located in southern Portugal, in the Iberian Pyrite Belt (IPB).

Suggested Citation

  • Maria-Ondina Figueiredo & Teresa Pereira da Silva, 2011. "The Positive Environmental Contribution of Jarosite by Retaining Lead in Acid Mine Drainage Areas," IJERPH, MDPI, vol. 8(5), pages 1-8, May.
    • Handle: RePEc:gam:jijerp:v:8:y:2011:i:5:p:1575-1582:d:12387
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