[1C11-15] Nuclide Migration 1

[1C13] The effect of salt concentration on the diffusion of anions in Boom Clay

*Yuya Mizukami¹, Shingo Tanaka², Naoko Watanabe², Tamotsu Kozaki², Yosuke Akagi³ (1. Graduate School of Engineering Hokkaido University, 2. Faculty of Engineering Hokkaido University, 3. Mitsubishi Materials Corporation)

Keywords:radioactive waste disposal, Boom Clay, diffusion, anion, salt concentration

Non-stationary-state diffusion experiments with anions were conducted using Boom Clay saturated with solutions of different salt concentrations. Apparent diffusion coefficients and the activation energy of diffusion were obtained, and the effects of ionic strength on diffusion of anions in Boom Clay were discussed.