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Fate of Uranium in the soils affected by Fukushima Daiichi Nuclear Power Plant Accident
https://repo.qst.go.jp/records/73212
https://repo.qst.go.jp/records/7321233b97d8c-c418-46bb-8085-a2c35092a468
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-02-15 | |||||
| タイトル | ||||||
| タイトル | Fate of Uranium in the soils affected by Fukushima Daiichi Nuclear Power Plant Accident | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
S.Kasar
× S.Kasar× S.K.Sahoo× N.Kavasi× H.Arae× T.Aono× Kasar, Sharayu× Sahoo, Sarata× Kavasi, Norbert× Hideki, Arae× Tatsuo, Aono |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | On March 11, 2011 a massive earthquake and ensuing tsunami struck the northern coast of Honshu-island, Japan. The earthquake and subsequent tsunami severely damaged the Fukushima–Daiichi Nuclear Power Plant (FDNPP) resulting in hydrogen explosions at nuclear reactor. Although it is believed that nuclear material such as plutonium and uranium isotopes must have remained largely inside reactor, the chances of their release in environment should be considered1. Consequently, the study of fate of radionuclides that could be present due to FDNPP accident is of great importance from the viewpoint of radioecology2. In order to understand migration behavior of U, determination of sorption-desorption characteristics in contaminated soils from exclusion zone in Okuma town has been carried out in present work. Kd (distribution coefficient) values were established using batch method with 238U as a tracer. Isotope ratios of uranium were measured using TIMS to find out level of contamination. Analytical chemical separation of U from digested soils was carried out with AER (AX 1 x 8)-UTEVA resins. Characterization of different soil parameters like particle size distribution, pH, organic content, cation exchange capacity (CEC), CaCO3, elemental and oxide composition of soil has been determined. Sorption Kd values varies from 400-5500 (L/Kg) for uranium. However, desorption Kd measurement will be presented during conference. This explains that soil surrounding the FDNPP has good retention capacity for actinides like U. The radioactive dis-equilibrium of 234U/238U was noticed in case of a few samples, indicating contribution of other sources in Fukushima environment than global fallout. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 13th International Symposium on Nuclear and Environmental Radiochemical Analysis:ERA13 | |||||
| 発表年月日 | ||||||
| 日付 | 2018-09-18 | |||||
| 日付タイプ | Issued | |||||
