RADIOISOTOPES
Online ISSN : 1884-4111
Print ISSN : 0033-8303
ISSN-L : 0033-8303
Adsorption Behavior and Distribution Coefficient of 137Cs and 85Sr on Sand
Tadatoshi YAMAMOTO, Shinichi TAKEBE, Yoshiki WADACHI
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Keywords: radioactive wastes, ground disposal, migration in ground, adsorption behavior, distribution coefficient, cesium-137, strontium-85
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1980 Volume 29 Issue 8 Pages 373-376

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Abstract

The adsorption behavior of radionuclides (137Cs and 85Sr) on sand and the influence of pH on the distribution coefficient have been studied. The adsorption obeys the Henry adsorption isotherm, which is an approximation of Freundlich adsorption isotherm, in the concentration range of 10-9-10-12 mol/l for both 137Cs and 85Sr. Their distribution coefficients do not depend on the concentration of radionuclides provided that sand particle size, pH, concentration of coexisting cations and so on are fixed.

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