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Sorption of Cs(I) and Sr(II) on a mixture of bentonite and magnetite using SCM + IExM: A parametric study

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Summary

The sorption of Cs(I) and Sr(II) on bentonite and magnetite was experimentally studied and numerically simulated using surface complexation (SCM) and ion-exchange (IExM) models. The empirical system consisted of: (1) synthetic granitic water with a given ionic strength (0.1 or 0.01 NaNO3), (2) radionuclides studied (10-6M CsCl or SrCl2 . 6H2O spiked with 137Cs or 85Sr), and (3) bentonite pre-treated with the aim to remove carbonates, and magnetite as a representative of steel canister corrosion products. The parametric study covered, e.g., the influence of pH, bentonite to magnetite ratio and volume-liquid ratio on the values of selectivity coefficients and Kd.

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Authors and Affiliations

  1. Centre for Radiochemistry and Radiation Chemistry, Czech Technical University, Břehová 7, 115 19 Prague 1, Czech Republic

    H. Filipská

  2. Department of Nuclear Chemistry, Faculty of Nuclear Science and Physical Engineering, Czech Technical University, Břehová 7, 115 19 Prague 1, Czech Republic

    K. Štamberg

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  1. H. Filipská
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  2. K. Štamberg
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Filipská, H., Štamberg, K. Sorption of Cs(I) and Sr(II) on a mixture of bentonite and magnetite using SCM + IExM: A parametric study. J Radioanal Nucl Chem 270, 531–542 (2006). https://doi.org/10.1007/s10967-006-0459-0

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  • DOI: https://doi.org/10.1007/s10967-006-0459-0

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