Mineralogical control on arsenic release during sediment-water interaction in abandoned mine wastes from the Argentina Puna
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- 作者：N.E. Nievaa ; L. Borgninoa ; b ; F. Locatia ; M.G. Garcí ; aa ; b ; gabriela.garcia@unc.edu.ar" class="auth_mail" title="E-mail the corresponding author
- 关键词：Concordia mine ; Central Andes ; As jarosite ; Sulfate efflorescences ; Sulfide oxidation
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 April 2016
- 年：2016
- 卷：550
- 期：Complete
- 页码：1141-1151
- 全文大小：1655 K
文摘
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Sulfide mine wastes are accumulated in La Concordia mine, Argentina Puna.
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The wastes are a source of arsenic, metals and acidity to the nearby ecosystems.
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As minerals are Fe sulfides, jarosite, (hydrous)sulfates and scarce arsenates.
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Intense evaporation leads to precipitation of readily soluble efflorescences.
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A high proportion of As remains adsorbed onto Fe (hydr)oxides