| Budget Amount *help |
¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2016: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2015: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2014: ¥21,710,000 (Direct Cost: ¥16,700,000、Indirect Cost: ¥5,010,000)
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| Outline of Final Research Achievements |
We studied for the purpose of decontamination of radionuclides (Cs) in soil and liquid. The radionuclide of the soil is adsorbed to the developed zeolite-magnetite composite material and recovered by the magnetic separator. The practical application is difficult, because the decontamination rate from the soil to the zeolite has decreased considerably year by year and the high cost of the magnetic separator can not be improved. For sheeting of zeolite, a nonwoven fabric zeolite sheet was prototyped and tried to decontaminate in rice fields in Fukushima. However, the practical application was difficult, because a sufficient decontamination rate was not obtained. Good results was obtained for glass solidification after decontamination. Furthermore, the addition of sodium carbonate was very effective in reducing the firing temperature and suppressing the vaporization of cesium.
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