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処分システム性能へのコロイド影響評価; 室内試験、原位置試験とモデル解析を踏まえて

Influence of the Colloids on Performance Assessment for Radioactive Waste Geological Disposal System; Based on the Results of Laboratory, in-Situ Programs and Analysis

油井 三和; 黒澤 進; 飯島 和毅

Yui, Mikazu; Kurosawa, Susumi; Iijima, Kazuki

放射性廃棄物の地層処分の環境を人工バリア、天然バリアおよびその境界部に区分して、そこに生成あるいは元々存在するコロイド等の核種移行に及ぼす影響に関して、核燃料サイクル開発機構でこれまで得られた知見を示す。また、地層処分研究開発に関する第2次取りまとめ以降、コロイド等の影響評価モデルの開発・高度化を目的として実施した室内および原位置試験の結果とそれら試験結果に関するモデル解析の結果等を報告するとともに、今後の課題を示す。

The information of experimental and theoretical studies which were performed with Japan Nuclear Cycle Development Institute (JNC) as leader to evaluate the influence of colloid, organic material and microorganism in artificial barrier, natural barrier and its boundary area on performance assessment of radioactive waste geological disposal system were presented. Furthermore, the experimental and analytical results of laboratory and in-situ programs which were performed on and after compilation of the results of R&D studies relevant to radioactive waste management by JNC to develop and advance the transport model of radionuclide with colloid, organic material and microorganism were indicated.

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