Sorption properties of silicate materials based on Ca2SiO4

Sorption studies showed that a silicate material formed in the course of metallurgical slag reprocessing, containing dicalcium silicate as the major component, exhibits high affinity (log K d [ml g −1 ] > 4) for U(VI), Pu(IV), REE(III), and Th(IV) cations and for simple anions and appreciable aff...

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Bibliographic Details
Published in:Radiochemistry (New York, N.Y.) N.Y.), 2011-10, Vol.53 (5), p.498-503
Main Authors: Polyakov, E. V., Tsvetokhin, A. G., Barysheva, N. M., Ovchinnikov, N. A., Pashkeev, I. Yu, Mikhailov, G. G., Volkov, I. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Nuclear Chemistry
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Summary:Sorption studies showed that a silicate material formed in the course of metallurgical slag reprocessing, containing dicalcium silicate as the major component, exhibits high affinity (log K d [ml g −1 ] > 4) for U(VI), Pu(IV), REE(III), and Th(IV) cations and for simple anions and appreciable affinity (log K d [ml g −1 ] > 2) for Cs(I) and Sr(II) cations in their sorption from river water. The sorbent can be of practical interest for separation, preconcentration, neutralization, and recovery of harmful chemical elements and radioactive substances from aqueous solutions, followed by their cementation (solidification) and safe disposal.
ISSN:1066-3622
1608-3288
DOI:10.1134/S1066362211050092