2019 Fall Meeting

Presentation information

Oral presentation

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

[1C01-07] Waste

Wed. Sep 11, 2019 10:00 AM - 11:55 AM Room C (Common Education Bildg. 1F C13)

Chair:Keiichiro WAKASUGI(Tokai Univ.)

10:30 AM - 10:45 AM

[1C03] Evaluation of HLW glass dissolution rate as a function of dissolved silica concentration using Si isotopes

*Ryosuke Kato1, Yaohiro Inagaki1, Tatsumi Arima1, Kazuya Idemitsu1, Keita Mutou1, Sanae Shibutani2 (1. Kyushu Univ., 2. NUMO)

Keywords:HLW glass, dissolution kinetics, Si isotopes, Micro-Channel Flow-Through test method

Dissolution rate of HLW glass changes depending on glass composition and vrious environmental parameters (temperature, pH, ground water composition).
In this study, we measured and evaluated glass dissolution rate for ISG as a function of dissolved silica concentration by using a Micro-Cannel Flow-Through test method with Si-29 enriched silica solution.