Americium and plutonium association with magnesium hydroxide colloids in alkaline nuclear industry process environments
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- 作者：Zoe Mahera ; Peter Ivanovb ; Luke O'Brienc ; Howard Simsd ; Robin J. Taylora ; Sarah L. Heathe ; Francis R. Livense ; David Goddardf ; Simon Kelletg ; Peter Randg ; Nick D. Bryanc ; nick.bryan@nnl.co.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：Brucite ; Colloids ; Americium ; Plutonium ; Effluent treatment
- 刊名：Journal of Nuclear Materials
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：468
- 期：Complete
- 页码：84-96
- 全文大小：3802 K
文摘
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Am and Pu in Mg-rich alkaline effluents from nuclear fuel storage ponds are mainly associated with colloids.
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In true solution, i.e. material passing through a 1 nm filter, the plutonium appears to be in oxidation state +V.
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In model brucite (magnesium hydroxide) colloid systems, Am(III) is preferentially associated with larger colloids.
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At pH = 10.4, carbonate concentrations >10−2 M are able to prevent the binding of Am(III) to colloids.