[2H07-12] Migration/Sorption 2

[2H10] Effect of Carbonate on the Migration Behavior of Neptunium in Compacted Bentonite

*Kazuya Idemitsu¹, Yaohiro Inagaki¹, Tatsumi Arima¹ (1. Kyushu university)

Keywords:Diffusion, Neptunium, Carbonate, Filtering, Dry density

Diffusion experiments were carried out with the parameters of carbonate concentration, bentonite dry density, and diffusion period. Filtering of neptunium was observed at a dry density of 1.2 Mg/m³ or higher and a bicarbonate concentration of 0.25 M or higher.