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汚染水処理二次廃棄物スラリー及び濃縮廃液の安全な長期貯蔵・処理・処分のための脱水固定化技術の開発

Development of solidification techniques with minimised water content for safe storage and disposal of secondary radioactive aqueous wastes in Fukushima

目黒 義弘  

Meguro, Yoshihiro

高濃度放射性Sr及び海水成分を含む汚染水処理二次廃棄物の安全な貯蔵・処理・処分のために水分量を最小限に抑えた新しい固定化技術を開発することを目指して、水和反応ではなく酸塩基反応による硬化、リン酸系材料中へのSr及びClの固定化、及び加熱脱水による水分量を低下させる固化体作製技術の開発とその長期安定性評価を実施する。

The proposed project aims to develop a new solidification technique with minimised water content for the safe storage of secondary aqueous radioactive wastes involving highly radioactive Sr and sea components. We implement development of a solidification technique to decrease water content in a waste form by heating, to immobilise Sr and Cl in a phosphate material, and to solidify the waste form by acid-base reaction instead of hydration reaction as well as its stability assessment.

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