Development of recovery and long-term fixation technology of radioactive cesium using a zeolite / apatite composite
| Project/Area Number |
26820308
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Composite materials/Surface and interface engineering
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| Research Institution | Hosei University (2017)
Kanazawa Institute of Technology (2014-2016) |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | セシウム / ゼオライト / アパタイト / モルデナイト / 焼結 / 放電プラズマ焼結 / 複合体 / 安定化 / 放射性セシウム / 焼結体 / 放射性ストロンチウム / パルス通電加圧焼結 / 緻密固化体 / 複合化 / ナノ粒子 / イオン交換 / 環境浄化 |
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| Outline of Final Research Achievements |
In this study we have developed a technology for recovery and long term stabilization of radioactive cesium using zeolite / apatite composite. The synthetic mordenite / apatite composite was prepared from calcium type synthetic mordenite by an alkaline hydrothermal treatment with ammonium phosphate solution at 80℃. The composite prepared was retained high cesium adsorption ability as synthetic mordenite. The zeolite/apatite composite with apatite matrix sintered using PECS method at 950℃ and 1050℃ and that sintered using pressureless sintering method at 1200℃ were dense sintered bodies without cracking. The cesium elution percentage of those sintered bodies were less than 1.0 % in 0.6 M NaCl. Therefore this technology can be expected as a recovery and long-term stabilization of radioactive cesium.
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Report
(5 results)
Research Products
(18 results)
