| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2015: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
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| Outline of Final Research Achievements |
Soon after the Fukushima Dai-ichi Nuclear Power Plant sustained a powerful earthquake on March 11 in 2011, it was inundated by a huge tsunami that led to failed resumption of power. Even today, cesium-contaminated sites near the plant present difficulties for public health and the environment. Under these circumstances, we demonstrated that iron chloride (III) is extremely effective for removing of cesium in polluted soil under heating conditions. This research explains the efficiency of iron chloride for dry separation of cesium in soils of three kinds such as sandy soil, field soil, and clay. Results of many investigations indicate the optimum conditions under comparative mild conditions like lower heating and lack of wastewater. For instance, an addition from 0.2 wt% to 10 wt% of iron chlorides to total targeted soil facilitated a 99 % of separation of cesium in polluted soil at 900 oC for 2 hours treatment.
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