WEKO3
アイテム
Mechanism of As(V) removal in wastewater using Fe(III)-supported exchange resin
http://hdl.handle.net/10458/6279
http://hdl.handle.net/10458/6279e8edfc91-4c62-405f-b11b-5e534c4aa0b1
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (558.8 kB)
|
|
| Item type | その他 / Others(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-21 | |||||
| タイトル | ||||||
| タイトル | Mechanism of As(V) removal in wastewater using Fe(III)-supported exchange resin | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | wastewater treatment, As (V) removal, ion-exchange resin, column method | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
| 資源タイプ | other | |||||
| 著者 |
Morita, Masao
× Morita, Masao× 所, 千晴× Futami, Fumiya |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Today, mine development and natural pollution caused As contaminated water. In southeastern Asia, some people use the groundwater containing As more than 10μg/L for drinking, and it is worried that they are exposed to As addiction. In this study, we focused on the construction of an economical and simplified process for treatment of As（V） contaminated drinking water. The （co-）precipitation method using ferrihydride is commonly applied for As（V） removal, but it generates many sludge and needs much time for liquid/solid separation. Objective of this study Is simultaneous processing of As（V） removal and sold/liquid separation using Fe（III）-supported ion exchange resins. At first, As（V） removal mechanism was investigated with batch beaker test, by ICP-AES analysis for filtrate and Electron probe micro analyzer （EPMA） and X-ray absorption fine structure （XAFS） analysis for solids. These results suggested that Fe（lll） diffusion inside the resin was the rate-determining step, thereby requiring prolonged reactions for As（V） removal. These solid analysis results also suggested that As（V） was removed by the combination of surface precipitation of ferric arsenate and surface complexation to ferrihydrite. Secondly column test packed Fe（III）-supported resin was also conducted for synthetic As（V） wastewater. Results showed As（V） was successfully removed under SV 9.82 hr^-1 until 192 BV. |
|||||
| 言語 | en | |||||
| 書誌情報 |
en : 4th InternationalArsenic Symposium in MIYAZAKI 2015 p. 88-93, 発行日 2015-10 |
|||||
| 出版者 | ||||||
| 出版者 | University of Miyazaki, IRISH | |||||
| 言語 | en | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
