[1C16-19] Nuclide Migration 2

[1C18] Diffusion behavior of Copper ions in Bentonite

*Keisuke Yoshida¹, Kazuya Idemitsu², Masayuki Hirakawa¹, Ryota Yamada¹, Yaohiro Inagaki², Tatsumi Arima² (1. Kyushu Univ., 2. Kyushu University Department of Engineering)

Keywords:Bentonite, Copper, Diffusion

In this study, electro-migration experiments were conducted as parameters of applied electric potential and bentonite dry density for obtaining the diffusion of copper ion in bentonite (Kunipia F). As a result, the apparent diffusion coefficient became almost constant regardless of the applied electric potential, and the values were on the order of 10^-12[m²/s].