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Sorption behavior of selenium on humic acid under increasing selenium concentration or increasing solid/liquid ratio
https://repo.qst.go.jp/records/45162
https://repo.qst.go.jp/records/4516254a26f3d-7717-48c0-a4c3-2e237af03bca
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-05-19 | |||||
| タイトル | ||||||
| タイトル | Sorption behavior of selenium on humic acid under increasing selenium concentration or increasing solid/liquid ratio | |||||
| 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 |
Ishikawa, Nao
× Ishikawa, Nao× Tagami, Keiko× Uchida, Shigeo× et.al× 石川 奈緒× 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 sorption of selenium (Se) on humic acid (HA) was investigated in order to better understand the fate of stable and radioactive Se in soils and sediments. An ultrafiltration technique was used to determine size distributions of HA-sorbed-Se when increasing Se concentration and solid/liquid ratio. The results showed that the Se sorption onto HA followed the Freundlich isotherm. No solid/liquid ratio-dependence was observed especially when <3 kDa molecular size fraction was used from solid/liquid separation. The Freundlich isotherm parameters KF and n obtained using the <3 kDa molecular size fraction for solid/liquid separation were 3.7*10^2 and 0.82, respectively. In addition, since dissolved HA increased with decreased ionic strength in the HA suspension, ionic strength could promote aggregation of HA. The conformational change of HA could affect the sorption behavior of Se on HA. | |||||
| 書誌情報 |
Journal of Environmental Radioactivity 巻 99, 号 6, p. 993-1002, 発行日 2008-06 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0265-931X | |||||
