Donnan membrane speciation of Al, Fe, trace metals and REEs in coastal lowland acid sulfate soil-impacted drainage waters
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- 作者：Adele M. Jonesa ; Youjia Xuea ; Andrew S. Kinselaa ; b ; Klaus M. Wilckenb ; Richard N. Collinsa ; richard.collins@unsw.edu.au" class="auth_mail" title="E-mail the corresponding author
- 关键词：Acid sulfate soil ; Rare earth elements ; Metal speciation ; Donnan dialysis ; Donnan membrane technique
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：547
- 期：Complete
- 页码：104-113
- 全文大小：1168 K
文摘
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CLASS discharge large amounts of metals and their speciation is poorly understood.
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Metal speciation determined using Donnan dialysis — a first for acid sulfate soils.
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Divalent metals largely present as free cations or neutral sulfate complexes.
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Trivalent metal species mostly present as negative or neutral in/organic complexes.
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Stability constants of trivalent metal disulfate and NOM complexes need revisiting.