[2E10-12] 1F Waste 3

[2E10] Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment

(11)Recent progress and selection of materials for hybrid waste solidification

*Masahiko Nakase¹, Ryosuke Maki², Tomofumi Sakuragi³, Hidekazu Asano³, Miki Harigai³, Hidetoshi Kikunaga⁴, Tohru Kobayashi⁵, Satofumi Maruyama⁶ (1. Tokyo Institute of Technology, 2. Okayama University of Science, 3. Radioactive Waste Management Funding and Research Center, 4. Tohoku University, 5. Japan Atomic Energy Agency, 6. Tokyo City University)

Keywords:Fukushima Daiichi Nuclear Power station accident, Radioactive waste, Hybrid waste solidification, Waste disposal

Our newly proposed "hybrid waste solidification" is a method to dispose of various wastes generated by the accident at the Fukushima Daiichi Nuclear Power Plant (1F) and to enable safety assessment. In the project from FY2021 to FY2023, we have been working on the synthesis, leachability, irradiation behavior, microstructural analysis, first-principles calculations, fabrication of solidified products, and safety assessment. In this presentation, we will outline the results obtained so far, as well as the selection of materials for the hybrid solidified products and future prospects.