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  • 1 Institute of Chemical Technology Department of Analytical Chemistry Technická 5 166 28 Praha 6 Czech Republic
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Abstract  

Sorption and diffusion processes with134Cs and85Sr in natural bentonites have been investigated. The distribution coefficients (Kd) have been determined by a batch method. Various factors affecting theKd value as water-to-bentonite ratio, concentration of the competitive cations in the aqueous phase or bentonite-to-sand ratio in the mixed sorbents have been evaluated. A comparison of the sorption and diffusion data has been made.