Baranov D. Yu., Murlis D. V., Ponizov A. V., Vereshchagin P. M., Muslimov D. D.
This article discusses approaches to the use of geochemical modeling for derived estimate of the sorption properties of engineered safety barriers, which can be used to justify the long-term safety of radioactive waste storage facilities.;
Basic provisions for geochemical modeling in substantiation of the long-term safety of the radioactive waste storage facilities are formulated, and the terms “geochemical modeling” and “geochemical conditions” are defined.
The application of geochemical modeling is demonstrated on the sorption and sorption-precipitation models of the migration of the uranium element through concrete and bentonite engineered safety barriers materials. The effect of the chemical composition of solutions in contact with the material of engineered safety barriers on the sorption of uranium and strontium elements is considered.
► Keywords: geochemical conditions, geochemical modeling, radioactive waste storage facility, sorption of radionuclides.
Article language: Russian. Pp. 18–38. [in Russian]. DOI: 10.26277/SECNRS.2025.116.2.002.
