To solve the problem of silts and soils that are contaminated withradioactive and toxic substances, the following method has been developed atSIA RADON. The material is mixed with limestone and other components,including up to 70 % (mass) of dried residue of liquid radioactive waste.The mixture is heated at 800 to 1000 °C, shredded, and used to form cement.This cementation process may be used to treat radioactive or other chemicalwaste.

The work demonstrated that in the case of silts, for example, the productvolume is reduced by a factor of 1.5 to 3 compared to the initial siltsvolume. A fast hardening, durable product is obtained, the quality of whichis not inferior to that obtained by using the traditional binders. For someparameters, e.g., hardening rate and macroelement leaching, the currentmethod is significantly better than the traditional cementation process. Ithas also been demonstrated that, over a wide range of parameters, when dryresidue of liquid radioactive waste is used in the initial mixture, the partof NOxCan be reduced to nitrogen, thereby reducing NOxemissions.