2017 Fall Meeting

Presentation information

Oral presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 405-1 Radioactive Waste Management

[2A21-24] Vitrification 4

Thu. Sep 14, 2017 5:25 PM - 6:30 PM Room A (B11 - B1 Block)

Chair:Uruga Kazuyoshi (CRIEPI)

5:25 PM - 5:40 PM

[2A21] Development of Recovery Process of Platinum-group Metals from HLLW for Stable Production and Volume Reduction of Homogeneous Vitrified Object

(24)Comprehensive evaluation of sorbent for separation of platimum group species

*Ippei AMAMOTO1, Hidekazu KOBAYASHI1, Yasuo AYAME1, Takashi OHNISHI1, Akiko KOSHIZAKA2, Yoshio HASEGAWA2, Yusuke INABA3, Kazuo UTSUMI3, Kenji TAKESHITA3, Jun ONOE4 (1. JAEA, 2. Art Kagaku, 3. Tokyo Tech, 4. Nagoya Univ.)

Keywords:hi-level radioactive liquid waste, vitrification, porous silica material, aluminium ferrocyanide, sorbent , Platinum Group Species (PGS), static leach test

The development on synthesis of sorbent was carried out to separate the platinum group species such as Ru, Rh and Pd in high-level radioactive liquid waste.
After sorption test using developed sorbents, the spherical porous silica impregnated aluminium ferrocyanide was effective to sorb the species of Ru and Pd in the nitric solution.
This sorption effect remained stable when tested on actual high-level radioactive liquid waste. It was found that more treated waste could be loaded into the borosilicate glass than untreated waste.