(1)ゼオライトによる放射性核種の選択的分離・固化

• 三村 均

  東北大学大学院工学研究科

• 佐藤 修彰

  東北大学多元物質科学研究所

• 桐島 陽

  東北大学多元物質科学研究所

書誌事項

タイトル別名

• (1) Selective separation and solidification of radioactive nuclides by zeolites

抄録

  Massive tsunami generated by the Great East Japan Earthquake attacked the Fukushima Daiichi Nuclear Power Plant and caused the nuclear accident of level 7 to overturn the safety myth of the nuclear power generation. The domestic worst accident does not yet reach the convergence, and many inhabitants around the power plant are forced to double pains of earthquake disaster and nuclear accident. Large amounts of high-activity-level water over 200,000 tons are accumulated on the basement floor of each turbine building, which is a serious obstacle to take measures for the nuclear accident. For the decontamination of high-activity-level water containing seawater, the inorganic ion-exchangers having high selectivity are effective especially for the selective removal of radioactive Cs. On the other hand, radioactive Cs and I released into the atmosphere from the power plant spread widely around Fukushima prefecture, and the decontamination of rainwater and soil become the urgent problem. At present, passing about four months after nuclear accident, the radioactive nuclides of ¹³⁷Cs and ¹³⁴Cs are mainly contained in the high-activity-level water and the selective adsorbents for radioactive Cs play an important part in the decontamination. Since the construction of original decontamination system is an urgent necessity, selective separation methods using inorganic ion-exchangers are greatly expected. From the viewpoint of cost efficiency and high Cs-selectivity, natural zeolites are effective for the decontamination of radioactive Cs. This special issue deals with the selective separation and solidification of radioactive Cs and Sr using zeolites.<br>

収録刊行物

• 日本イオン交換学会誌

  日本イオン交換学会誌 22 (3), 96-108, 2011

  日本イオン交換学会

キーワード

• 放射能高汚染水
• Cs
• Sr
• 無機イオン交換体
• イオン交換選択性
• 固化
• 固体廃棄物
• 処理・処分

詳細情報

• CRID: 1390001204435655680
• NII論文ID: 130000961983
• DOI: 10.5182/jaie.22.96
• BIBCODE: 2011JIEx...22...96M
• ISSN: 18843360
• ISSN: 0915860X
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可