2018 Fall Meeting

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-3 Decommissioning Technology of Nuclear Facilities

[3F05-09] Dismantling and Decontamination Technology 2

Fri. Sep 7, 2018 10:35 AM - 12:00 PM Room F (A36 -A Building)

Chair:Eisuke John Minehara(LDD)

11:05 AM - 11:20 AM

[3F07] A decontamination characteristic of the metal surface with Uranium hexafluoride

(1) Basic test used simulation sample

*Takuya Nakayama1, Mitsuo Nomura1, Yutaka Mita1, Noritake Sugitsue1, Hitoshi Yonekawa2, Misako Bunbai2, Yumi Yaita3, Eiichi Murata3, Katsumi Hosaka3 (1. JAEA, 2. JNFL, 3. Toshiba Energy Systems & Solutions Corporation)

Keywords:Uranium hexafluoride, Carbon steel, Corrosion, Decontamination, Water, Diluted acid, Functional electrolyzed water, Hypochlorous acid, Secondary waste

The metal surface exposed to uranium hexafluoride corrodes covering radioactive materials. We studied reasonably decontamination method. In this test, decontamination characteristics using water, diluted acid, functional electrolyzed water were evaluated using a simulated sample. As a result, we found that the oxidation-reduction potential of functional electrolyzed water affects decontamination performance.