S. A. Fimina, N. D. Chalysheva, K. Yu. Belova, S. E. Vinokurov
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Immobilization of Boron-Containing Radioactive Waste from Nuclear Power Plants in Magnesium Potassium Phosphate Compound
Samples of magnesium potassium phosphate compound containing boron-containing evaporator bottom simulant after concentrating 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 durability were determined. The integral 137Cs leaching rate is 5.7 × 10−4 g/(cm2 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.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
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