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Sorption of Cs and Rb on purified and crude MX-80 bentonite in various electrolytes

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Abstract

The adsorption of Cs on clayey materials such as bentonite and Na-montmorillonite was studied in various electrolytic conditions (concentration and composition), various solid to liquid ratios and various pH conditions. The results obtained for these different conditions were modeled considering an exchange model associated to the surface complexation concept. Then, the same approach was considered to model the sorption of Rb, which have the same chemical behavior than Cs. Experiments were carried out for various electrolyte, pH, and Rb concentrations. The stoichiometries corresponding to the sorption of Rb on bentonite and montmorillonite were then deduced from the experimental results.

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Authors and Affiliations

  1. Laboratoire de Radiochimie, Sciences Analytiques et Environnement (LRSAE), Institut de Chimie de Nice (ICN), Université de Nice Sophia-Antipolis, 28 avenue Valrose, 06108, Nice Cedex 2, France

    C. Hurel, N. Marmier & F. Fromage

  2. Environmental Hydrogeochemistry Group, LCABIE, UMR CNRS 5034, University of Pau and Adour countries, Hélioparc Pau-Pyrénées, 2 av. P. Angot, 64053, Pau Cedex 9, France

    A. C. M. Bourg

Authors
  1. C. Hurel
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  2. N. Marmier
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  3. A. C. M. Bourg
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  4. F. Fromage
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Correspondence to C. Hurel.

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Hurel, C., Marmier, N., Bourg, A.C.M. et al. Sorption of Cs and Rb on purified and crude MX-80 bentonite in various electrolytes. J Radioanal Nucl Chem 279, 113–119 (2009). https://doi.org/10.1007/s10967-007-7204-1

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  • DOI: https://doi.org/10.1007/s10967-007-7204-1

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