2024 Annual Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[2A17-19] Nuclide Migration 2

Wed. Mar 27, 2024 4:40 PM - 5:30 PM Room A (21Bildg.2F 21-203)

Chair:Masakazu Chijimatsu(HAZAMA ANDO)

4:55 PM - 5:10 PM

[2A18] Effect of carbonate on the migration behavior of uranium in compacted bentonite

*KAZUYA IDEMITSU1, Yasuyoshi Nagai1, Kenji Konashi1, Makoto Watanabe1, Chikage Abe1 (1. Tohoku Univ.)

Keywords:Uranium, Uranyl carbonate complex, Bentonite, Filtering, Anion exclusion

In this experiment, we focused on the migration behavior of uranium in bentonite in the presence of carbonic acid and conducted diffusion tests using bentonite dry density and diffusion period as parameters. Uranium showed filtering behavior, but this tendency was smaller than that of neptunium. This could be because uranium carbonate complexes are uncharged and not subject to anion exclusion.

Abstract password authentication.
Password is required to view the abstract. Please enter a password to authenticate.

Password