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Modification of the structure of natural bentonite and study on the sorption of Cs+

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Abstract

Natural bentonite clay was treated in order to remove impurities to increase the cation exchange capacity of the montmorillonite and to obtain a more effective radioactive cesium sorption. It was found that the treatment of the clay determines the amount of sorbed cesium. On the other hand it was shown that montmorillonites may retain cesium through several mechanisms which provide strongly retained cations occupying cationic sites into the clay structure or sorbed cesium which may be lost by purification treatments.

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Authors and Affiliations

  1. A. P. 18-1027, Col. Escandón, Delegación Miguel Hidalgo, Instituto Nacional de Investigaciones Nucleares, C.P. 11810, México, D.F., Mexico

    E. J. Lima & S. Bulbulian

  2. Iztapalapa, Departamento de Química, Michoacán, Esq. Purísima, Iztapalapa, Universidad Autónoma Metropolitana, C.P. 09340, México, D. F., Mexico

    E. J. Lima & P. Bosch

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  1. E. J. Lima
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  2. P. Bosch
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  3. S. Bulbulian
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Lima, E.J., Bosch, P. & Bulbulian, S. Modification of the structure of natural bentonite and study on the sorption of Cs+ . J Radioanal Nucl Chem 237, 41–45 (1998). https://doi.org/10.1007/BF02386659

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  • DOI: https://doi.org/10.1007/BF02386659

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