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Garcia-Lodeiro, I.*; 入澤 啓太; Lebon, R.*; Mahoney, D.*; Zhang, B.*; 谷口 拓海; 並木 仁宏*; 大杉 武史; 目黒 義弘; 木下 肇*
no journal, ,
Calcium aluminate cements modified with phosphate (CAP) have been studied as an alternative matrix for the encapsulation of aqueous secondary wastes arising from processing of contaminated waster in Fukushima Daiichi Nuclear Power Plant. The present study focuses on the immobilisation of Sr and the other elements present in the simulated wastes in the CAP cements. As a result, CAP has a great potential as a host matrix for aqueous secondary wastes currently stored in Fukushima. It was possible to incorporate the simulated secondary wastes and form stable solids that can retain Sr under exposure to water.
Garc
a-Lodeiro, I.*; Lebon, R.*; Mahoney, D.*; Zhang, B.*; 入澤 啓太; 大杉 武史; 中澤 修; 木下 肇*
no journal, ,
Incorporation of simulated aqueous secondary wastes in CAC and CAP cements was studied. The inclusion of simulated secondary wastes did not disturb the fundamental reaction of the systems, but the significant salt contents resulted in Friedel's salt in CAC and chlorapatite in CAP.
Garca-Lodeiro, I.*; Lebon, R.*; Mahoney, D.*; Zhang, B.*; 入澤 啓太; 大杉 武史; 中澤 修; 木下 肇*
no journal, ,
福島汚染水処理二次廃棄物を含有したカルシウムアルミネートセメント(CAC)およびそのリン酸セメント(CAP)を高温条件で作製し低含水化させ、その標準浸出試験を実施した。低含水化がCACの浸出挙動に及ぼす影響は少なかったのに対し、CAPにおいては低含水化によりその浸出挙動に有意な変化がみられた。リン酸は特に高温低含水化においてSrを含むアルカリ土類元素の保持に有効であることが示唆された。