Abstract
The prospects of using of sorbents based on oxohydroxophosphate titanium(IV) to extract 134 Cs,137Cs and 90Sr from solutions close in composition to sea water have shown. The optimal conditions for the use of sorbents providing effective joint extraction of 134,137Cs and 90Sr in the presence of background macro components were determined. Modification of sorbents improves their sorption properties. It was established that the titanate ion exchangers are of interest for selective extraction of 90Sr. Optimum conditions of their application was defined. Heat treatment of waste sorbents provides reliable immobilization of radioactive sorbate. The titanium ortophosphate sorbents was tested for decontamination of liquid radioactive waste. The efficiency of their use is shown.
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