Sorption of 137 Cs, 90 Sr, Se, 99 Tc, 152(154) Eu, 239(240) Pu on fractured rocks of the Yeniseysky site (Nizhne-Kansky massif, Russia)

The study demonstrates the effect of sorption properties of fractured host rocks from the Yeniseysky site (Nizhne-Kansky rock massif, Krasnoyarsk region) on the migration of dissolved radioactive components ( 137 Cs, 90 Sr, 79 Se, 99 Tc, 152(154) Eu, 239(240) Pu) in the deep geological conditions of...

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Bibliographic Details
Published in:E3S web of conferences 2019, Vol.98, p.10007
Main Authors: Rozov, Konstantin, Rumynin, Vyacheslav, Nikulenkov, Anton, Leskova, Polina
Format: Article
Language:English
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Summary:The study demonstrates the effect of sorption properties of fractured host rocks from the Yeniseysky site (Nizhne-Kansky rock massif, Krasnoyarsk region) on the migration of dissolved radioactive components ( 137 Cs, 90 Sr, 79 Se, 99 Tc, 152(154) Eu, 239(240) Pu) in the deep geological conditions of a high-level radioactive waste repository. Estimates of radionuclide distribution coefficients between the aqueous solution and fractured rocks obtained from sorption experiments. The influence of various petrographic types and fracture-filling substances on the retardation of radioactive components has been investigated. Based on the results of sorption experiments, we concluded that the type and attributes of rock discontinuities, as well as the mineral composition of the material in fractures, are crucial for the immobilization of radionuclides during their migration through a geological environment.
ISSN:2267-1242
2267-1242
DOI:10.1051/e3sconf/20199810007