Samples of magnesium potassium phosphate compound containing a simulant of boron-containing evaporator bottom after concentration of liquid radioactive waste from nuclear power plants were synthesized. The possibility of solidifying up to 14 wt % evaporator bottom simulant components into a compound containing 15–20 wt % wollastonite was demonstrated. The phase composition of the samples obtained, their compressive strength, resistance to thermal cycles, water resistance, and hydrolytic stability were determined. The integral leaching rate of Cs is 5.7 × 10 g/(cm day), and the leaching index is 10.7. The quality indicators of the compound obtained meet the regulatory requirements for a compound for solidifying radioactive waste.
Fimina et al. (Wed,) studied this question.
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