engleski

Removal of cerium(III) species from solutions using granulated zeolites

The possibility of the use of granulated zeolites for the removal of cerium(III) species from solutions labelled with cerium-141 radioisotope, has been investigated. Measurements of cerium(III) species in solutions and of the distributions of cerium(III) species in column fillings (granulated zeolites), after passing the solution through columns filled with various granulated zeolites have shown that cerium(III) ions can be effectively removed from weakly acidic solutions using granulated mordenite. The influence of pH, of the concentration of Ce ions in solution and the solution flow rate through the column on the efficiency of Ce(III) species removal and on the distribution of Ce(III) species in the column has been investigated. The mechanism of exchange of Ce(III) ions from solution with sodium ions from granulated zeolites has been discussed.

ion-exchange ; radioisotope ; granulated zeolites ; Ce

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