Soil modification method in the border zones of surface-type storage facilities and experience of its application

Federal State Unitary Enterprise RADON has considerable experience in the implementation of the soil modification process at surface-type storage facilities. The modification process involves modifying solution injection performed under pressure through a system of process wells into the rocks of the border zone. Upon penetrating into the rocks, the solution interacts with them reducing their hydraulic permeability, which eliminates the risk of radionuclide release into the environment and increases the efficiency of the natural barrier. The report presents the results of an overview discussing available soil modification methods, evaluates laboratory and pilot-industrial research and recommendations on the selection of a promising modifier for the modification of border zones around storage facilities operated at FSUE RADON’s industrial site.