Scientific and technical journal
ISSN 2587-9707
RuEn
-
Home Archive of journals 2024, 1 (26) Sorption Influence on Iodine-129 Release from the DGRS Near Field

SORPTION INFLUENCE ON IODINE-129 RELEASE FROM THE DGRS NEAR FIELD

JOURNAL: 2024, 1 (26), p. 57-68

AUTHORS: P.A. Blokhin, S.A. Bogatov, K.A. Boldyrev, D.A. Sobolev

ANNOTATION:

In terms of potential long-term radiation hazard, 129I is seen as a most problematic radionuclide, which is explained by its high mobility and long half-life. The paper explores its forms that may occur in VHLW from SNF reprocessing. It also overviews the studies focused on 129I sorption by engineered barrier materials considered typical for DGR sited in crystalline rocks, namely, bentonite and steel containers for vitrified high-level waste. The paper shows that when considered, the realistic coefficients for the interphase 129I distribution on bentonite and carbon steel corrosion products have little effect on its release beyond the DGR’s near field However, 129I release into the DGR’s near field is expected to be retarded in a quite considerable way if the empty space inside the insulating containers is filled with selective sorbents.

Keywords: radionuclide transport, radioiodine, modelling, radioactive waste.


DOWNLOAD (RU) »


Blokhin P . A ., Bogatov S . A ., Boldyrev K . A ., Sobolev D . A . Sorption Influen e on Iodine-129 Release from the DGR’S Near Field .Radioactive Waste, 2024, no. 1 (26), pp. 57—68. DOI: 10 .25283/2587-9707-2024-1-57-68 (In Russian).


© 2017-2024 Journal Radioactive waste
Certificate of state registration of mass media 77-70452