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Sorption and desorption studies of Cs and Sr in contaminated soil samples around Fukushima Daiichi Nuclear Power Plant
https://repo.qst.go.jp/records/78453
https://repo.qst.go.jp/records/784539a2fc137-1287-4f82-ac8b-9f3af3aca6b9
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-06-21 | |||||
| タイトル | ||||||
| タイトル | Sorption and desorption studies of Cs and Sr in contaminated soil samples around Fukushima Daiichi Nuclear Power Plant | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Kasar, Sharayu
× Kasar, Sharayu× Mishra, Suchismita× Omori, Yasutaka× K Sahoo, Sarata× Kavasi, Norbert× Arae, Hideki× Sorimachi, Atsuyuki× Aono, Tatsuo× Kasar, Sharayu× Yasutaka, Omori× Sahoo, Sarata× Kavasi, Norbert× Hideki, Arae× Atsuyuki, Sorimachi× Tatsuo, Aono |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose Huge amounts of radiocesium, radiostrontium, and fission products were released into the atmosphere during the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. Therefore, it is necessary to determine the distribution coefficient of Cs and Sr in the soil-water system around FDNPP from the viewpoint of their migration. Materials and methods The determination of sorption coefficient Kd(S) as well as desorption coefficient Kd(D) for Cs and Sr has been carried out in the present study using the laboratory batch method. In this experiment, stable Cs and Sr were used for sorption on contaminated Fukushima soil samples and groundwater collected in proximity to the soil sample sites. Different soil parameters were measured to understand their effect on the sorption and desorption processes. Desorption experiments were carried out on some selected contaminated soil samples. Results and discussion Kd(S)-Cs and Kd(S)-Sr varied from 65 to 2100 L/kg and 15 to 130 L/kg, respectively. Kd(D)-Cs and Kd(D)-Sr varied between 75–2500 and 10–120 L/kg, respectively. High values of sorption coefficients for Cs indicate sorption capacity of soils for Cs is more than Sr. For Cs, Kd(D) was higher than Kd(S) whereas for Sr, Kd(S) was either equal to or higher than Kd(D). A moderate Pearson’s correlation of (Kd) Cs and Sr with exchangeable cations (Al, K, Mg, and Na) supported that ion exchange sorption mechanism is significant. There is enhanced Cs sorption compared to Sr due to the presence of biotite, kaolinite and smectite minerals resulting in high mobility of Sr in the Fukushima environment. Conclusions We concluded retention capacity of Fukushima soils for Cs is moderately stronger than Sr, which supports Sr is more mobile in the environment. |
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| 書誌情報 |
Journal of Soils and Sediments 巻 20, p. 392-403, 発行日 2020-01 |
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| 出版者 | ||||||
| 出版者 | Springer Berlin Heidelberg | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1439-0108 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s11368-019-02376-6 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://link.springer.com/article/10.1007/s11368-019-02376-6 | |||||
