In this paper we analyzed the vat residue of liquid radioactive waste and matrix schemes are typical of mixtures of still bottom liquid radioactive waste for effective immobilization. Shows the values that characterize the degree of filling omonolichennyh (cemented) radioactive waste, resulting from the experiments and achievements in the world (desirable).

On the basis of experimental research developed a method for immobilization of problematic radioactive waste in the compound of magnesium binding to the degree of inclusion of dried radioactive salts, 37 % (based on the technology of cement concrete can not enter more than 7 % of the salts of the still bottoms), and the quality of the compound corresponds to the specifications and technical documentation requirements.