[1H18-20] Alumina Solidified Body and Vitrified Waste

[1H20] Dissolution Behavior of BPI Glass under Geological Disposal Conditions

*Atsushi Mukunoki¹, Takahiro Kikuchi¹, Tamotsu Chiba¹, sakuragi Tomofumi², Tsutomu Sato³, Toshihiro Kogure⁴ (1. JGC Corporation, 2. Radioactive Waste Management Funding and Research Center, 3. Hokkaido University, 4. The University of Tokyo)

Keywords:TRU waste, Lead Borate Glass, Iodine-129, geological disposal

In order to understand the dissolution behavior of BPI glass in the geological disposal environment, long - term immersion test simulating the disposal environment was carried out to obtain leaching rate data of major elements. In addition, geochemical calculations and solid phase analysis of the surface altered layer were carried out and it was confirmed that these results were consistent.