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Effects of clay minerals in Japanese agricultural soils on sorption behavior of radiocesium
https://repo.qst.go.jp/records/53963
https://repo.qst.go.jp/records/53963d89b3aa6-63c3-49e4-b057-92b577168be0
Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2008-06-24 | |||||
タイトル | ||||||
タイトル | Effects of clay minerals in Japanese agricultural soils on sorption behavior of radiocesium | |||||
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_5794 | |||||
資源タイプ | conference paper | |||||
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 |
Ishikawa, Nao
× Ishikawa, Nao× Uchida, Shigeo× Tagami, Keiko× 石川 奈緒× 内田 滋夫× 田上 恵子 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Clay minerals are one of the most important components in soil for radiocesium sorption. There are many types of clay minerals in soil, and their capacities for cesium (Cs) sorption differ. However, the effects of differing clay mineral amounts and compositions on Cs sorption behavior have not been clarified yet. In this study, therefore, we studied Cs sorption on illite, kaolinite, and illite-kaolinite mixtures, carrying out batch sorption test and sequential extractions to investigate Cs sorption mechanisms. The amount of sorbed Cs in the mixtures did not depend on the illite content, but the amount of exchangeable Cs decreased as the illite content increased. Conversely, the amount of fixed Cs in the mixtures increased with increasing illite content. These results suggest that the distribution of Cs sorption between ion exchange sites and fixed sites may be dependent on the illite/kaolinite ratio. In addition, we can estimate the amount of sorbed Cs in an illite-kaolinite mixture from the amounts of sorbed Cs in illite and in kaolinite, and the abundance ratio of each clay mineral in the clay mixture. This is basic knowledge needed for long-term assessment of Cs mobility in soil. | |||||
書誌情報 |
The International Conference on Radioecology & Environmental Radioactivity 15-20 June, 2008 in Bergen, Norway : Proceedings of Poster Presentations 巻 2, p. 43-46, 発行日 2008-06 |
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出版者 | ||||||
出版者 | Norwegian Radiation Protection Authority | |||||
ISBN | ||||||
識別子タイプ | ISBN | |||||
関連識別子 | 978-8-2903-6226 |