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The behavior of technetium in soil surface water
https://repo.qst.go.jp/records/68275
https://repo.qst.go.jp/records/682751c4b3256-d5b8-4b84-a4c9-204995d1ca53
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2005-12-05 | |||||
| タイトル | ||||||
| タイトル | The behavior of technetium in soil surface water | |||||
| 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 |
Ishii, Nobuyoshi
× Ishii, Nobuyoshi× Tagami, Keiko× Uchida, Shigeo× 石井 伸昌× 田上 恵子× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The physicochemical modification of technetium (Tc) was determined in surface water covering paddy fields to obtain basic data for Tc behavior in paddy fields. The Tc form was changed from TcO4- to another form. The modification was mainly insolubilization. The relative amount of insoluble Tc increased with time until day 4 from the addition of Tc to a surface water sample, and the same level of insoluble Tc as on day 4 was also observed on day 42. Such insoluble Tc may precipitate and accumulate on surface soil layer of paddy soils over time. The factor causing insoluble Tc would be microorganisms since little change in the forms of Tc was observed in a filtered and an autoclaved surface water sample, where no living microbial cells were present. The addition of an antibiotic fungicide, cycloheximide, resulted in little change in the relative amount of insoluble Tc, while a mixture of prokaryotic antibiotics caused a decrease of the insoluble Tc amount. Among microorganisms, bacteria would contribute to the insoluble Tc formation in surface water samples. | |||||
| 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 | International Symposium on Radioecology and Environmental Dosimetry | |||||
| 発表年月日 | ||||||
| 日付 | 2003-10-24 | |||||
| 日付タイプ | Issued | |||||
