Reducing the depth migration of radionuclides by incorporation organic and inorganic components into the soil

Abstract

Purification of soils contaminated with radionuclides represents actual scientific-practical task. Depending on the volume, transportation- storage of such contaminated soils is associated with some difficulties. In this regard, phytoremediation metho-dology using is a relatively more appropriate. The main purpose of our research was to create a layer on remediation tank, which would facilitate the implementation of the phytoremediation method and at the same time prevented the migration of radio-nuclides into the lower layers of the soil. Modeling of radioisotope migration was performed by using the column method. The object of the study was soil contaminated by ¹³⁷Cs, while, various options containing organic and inorganic components were used as migration restricting factors. Maximum indicator of depth migration reduction was obtained by using astatine and ma-nure mixture. The proposed method of using organic and inorganic components mixture to reduce depth migration of radio-nuclides into the soil is appropriate not only for our marker ¹³⁷Cs, also in the condition of other radioisotopes contamination.