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Int. J. Environ. Res. Public Health 2011, 8(5), 1575-1582; doi:10.3390/ijerph8051575

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

Unity of Mineral Resources and Geophysics, Laboratório Nacional de Energia e Geologia (LNEG), Apartado 7586, 2721-866 Alfragide, Portugal
Author to whom correspondence should be addressed.
Received: 9 April 2011 / Revised: 5 May 2011 / Accepted: 7 May 2011 / Published: 13 May 2011
(This article belongs to the Special Issue Advances in Environmental Chemistry)
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Jarosite, KFe3(SO4)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). View Full-Text
Keywords: jarosite; lead; environmental role; abandoned mine wastes jarosite; lead; environmental role; abandoned mine wastes

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Figueiredo, M.-O.; Pereira da Silva, T. The Positive Environmental Contribution of Jarosite by Retaining Lead in Acid Mine Drainage Areas. Int. J. Environ. Res. Public Health 2011, 8, 1575-1582.

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