2022 Annual Meeting

Presentation information

Oral presentation

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

[3H05-10] Technologies for Dismantling, Decontamination and Evaluation

Fri. Mar 18, 2022 10:35 AM - 12:15 PM Room H

Chair: Hideharu Takahashi (Tokyo Tech)

10:50 AM - 11:05 AM

[3H06] Development of Removal Technique for Solid Contaminants with Ultra-Fine Bubbles for Decommissioning

*Masaumi Nakahara1, Sou Watanabe1, Shuya Kimura1, Misaki Sasaki2, Hiromitsu Inagaki3, Tetsuji Moriguchi2 (1. JAEA, 2. Kyutech, 3. Chubu Electric Power)

Keywords:Decommissioning, Removal technique, Secondary waste reduction, Ultra-fine bubbles, Cobalt oxide

A novel removal technique with ultra-fine bubbles has been proposed for decommissioning of nuclear facilities. The performance of removal technology with ultra-fine bubbles was evaluated in cold experiments with simulated contaminants precipitated Co oxides and hot experiments with radioactive contaminants. The experimental results will be reported in our presentation.