Migration of radionuclides from horizontal boreholes loaded with vitrified high-level radioactive waste
- Authors: Malkovsky V.I.1, Yudintsev S.V.1
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Affiliations:
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
- Issue: Vol 521, No 1 (2025)
- Pages: 155-162
- Section: GEOECOLOGY
- Submitted: 20.08.2025
- Published: 15.12.2025
- URL: https://bakhtiniada.ru/2686-7397/article/view/305245
- DOI: https://doi.org/10.31857/S2686739725030207
- EDN: https://elibrary.ru/fsynhf
- ID: 305245
Cite item
Abstract
For the disposal of high-level waste mined and borehole types deep repositories are proposed. The migration of actinides (241Am, 244Cm) and fission isotopes (137Cs, 90Sr) from repository with several horizontal boreholes was predicted by mathematical modeling. The concentrations of radionuclides in near-surface waters were calculated as function of number, depth and spacing between the boreholes, permeability of the surrounding rocks, and time of waste storage prior to disposal. The advantage of horizontal boreholes over vertical ones is the weak convection of waters caused by heat generation by the waste. With the same thickness of the rocks separating the waste from the surface, the temperature in the near field of a horizontal borehole is lower than in the case of a vertical borehole, so the intensity of leaching of radionuclides from the glass matrix by water will be also lower.
About the authors
V. I. Malkovsky
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Email: malkovsky@inbox.ru
Moscow, Russia
S. V. Yudintsev
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Author for correspondence.
Email: malkovsky@inbox.ru
Moscow, Russia
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