The precipitation of indium at elevated pH in a stream influenced by acid mine drainage
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- 作者：Sarah Jane O. Whitea ; b ; c ; sjowhite@princeton.edu" class="auth_mail" title="E-mail the corresponding author ; Fatima A. Hussaina ; Harold F. Hemonda ; Sarah A. Saccod ; James P. Shineb ; Robert L. Runkele ; Katherine Walton-Dayf ; Briant A. Kimballg
- 关键词：Emerging metal contaminant ; Aqueous behavior ; River ; Sorption ; Freshwater ; Environmental cycling
- 刊名：Science of the Total Environment
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：574
- 期：Complete
- 页码：1484-1491
- 全文大小：963 K
文摘
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In mining-influenced stream, indium concentrations are 10,000x those found in nature
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At low pH (~3), indium is completely dissolved (i.e. passes through a 0.45 μm filter)
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At experimentally-raised pH (>8), indium associates with suspended solid phase
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Lab experiments constrain equilibrium constants for sorption and precipitation
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Removal from dissolved phase is primarily due to precipitation of indium hydroxide