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3.11 MATRIXES FOR IMMOBILIZATION OF RADIOACTIVE SALTS LIQUID WASTE RESIDUE
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V. V. Goncharuk1 , G.N. Pshinko1 , L.N Puzyrnaya1 , A.N. Masko2 1 Dumansky Institute for Colloid Chemistry and Water Chemistry. NAS of Ukraine, Kyiv 2 State Enterprise "State Scientific and Engineering Center for Control Systems and Emergency Response", Kiev MATRIXES FOR IMMOBILIZATION OF RADIOACTIVE SALTS LIQUID WASTE RESIDUE The possibility of immobilizing the salts of evaporation residues of NPP liquid waste in matrices based on natural minerals is studied. It is shown that at salt content in the residue of 10 mass.% the glass-ceramic samples composed of clinoptilolite—montmorillonite—glass powder have a high chemical resistance (leaching rate of Cs-137 and Sr-90 radionuclides does not exceed 1 10-6 g/(cm2 day)). Keywords: matrix, immobilization, radioactive residues, radionuclides, glass, natural minerals

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