Magnesium potassium phosphate matrix for immobilization of actinide-containing radioactive waste

Abstract

Low-temperature mineral-like magnesium potassium phosphate matrix of various chemical compositions have been synthesized. Their phase composition, structure and distribution of radioactive waste components have been studied. The mechanical, thermal, radiation and hydrolytic stability of the synthesized materials have been investigated according to the valid regulatory requirements. It has been demonstrated that the magnesium potassium phosphate matrix is promising materials for industrial solidification of the liquid waste, including highly saline actinide-containing waste with complex chemical composition.