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Uranium (VI) Binding to Humic Substances: Speciation, Estimation of Competition, and Application to Independent Data

Pascal E. Reiller 1, * Laura Marang 1, 2 D. Jouvin 2 Marc F. Benedetti 2
* Corresponding author
1 LSRM - Laboratoire de Spéciation des Radionucléides et des Molécules
DPC - Département de Physico-Chimie : DEN/DPC
2 LGE - Laboratoire de géochimie des Eaux
Abstract : In groundwaters containing natural organic matter (NOM), mostly hu-mic substances (HS), it is expected that it plays a role on the behaviour of uranium in the environment. Another point is the actual effect of the competition with ma-jor cations and carbonate ions for U(VI)-NOM complexation. Our aim is to ac-quire experimental data for the U(VI)-HS complexation with two new different methodologies. The NICA-Donnan model is then used to predict uranium speci-ation in different groundwaters.
Mots-clés : Substances humiques uranium carbonate compétition complexation
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Conference papers
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https://hal-cea.archives-ouvertes.fr/cea-00643491
Contributor : Pascal Reiller <>
Submitted on : Tuesday, November 22, 2011 - 9:53:06 AM
Last modification on : Thursday, June 25, 2020 - 2:54:34 PM

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UNIV-PARIS7 | CEA | DEN | USPC | DEN-SACLAY | UNIV-PARIS

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Pascal E. Reiller, Laura Marang, D. Jouvin, Marc F. Benedetti. Uranium (VI) Binding to Humic Substances: Speciation, Estimation of Competition, and Application to Independent Data. Uranium Mining and Hydrology, Sep 2011, Freiberg, Germany. pp.565-572, ⟨10.1007/978-3-642-22122-4⟩. ⟨cea-00643491⟩

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