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PREPARATION OF ARSENIC ADSORBENT FROM NEUTRALIZATION PRECIPITATES OF FERROUS OXIDES PRODUCED AT ABANDONED MINE
http://hdl.handle.net/10458/6872
http://hdl.handle.net/10458/6872df566cf3-b97c-4229-bd30-fcccf0bd82f4
| 名前 / ファイル | ライセンス | アクション |
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本文 (502.0 kB)
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| Item type | その他 / Others(1) | |||||||||||||
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| 公開日 | 2020-06-22 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | PREPARATION OF ARSENIC ADSORBENT FROM NEUTRALIZATION PRECIPITATES OF FERROUS OXIDES PRODUCED AT ABANDONED MINE | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Arsenic adsorbent, Cryogel, Polyvinyl alcohol, ferrous oxides | |||||||||||||
| 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 |
塩盛, 弘一郎
× 塩盛, 弘一郎
WEKO
5570
× Yokoyama, K× Matsushita, A× Kiyoyama, S× Kokubu, T× Tanabe, K |
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Arsenic adsorbents composed of polyvinyl alcohol （PVA） cryogel immobilizing the neutralization precipitates of ferrous hydroxides discharged from Hayahi abandoned mine at Misato-cho in Miyazaki prefecture were prepared under various conditions. The adsorbent has highly porous structure and color of dark brown, and adsorbed both As（III） and As（V） from aqueous solution. The adsorbed amount of As increased with an increase in the As concentration in the aqueous solution. And the adsorption amount also increased with increasing the amount of the precipitates used for the preparation of the adsorbent. The adsorption mechanism between As （III） and As（V） is suggested to be different by the analysis of adsorption equation. The adsorbent was used for a column type operation. Arsenic ion in the aqueous solution could be adsorbed on the adsorbent under continuous flow condition. In the initial stage of the column operation, all of Arsenic ion in the aqueous solution was adsorbed on the adsorbent and no As was contained in the effluent from the column. The As concentration in the effluent gradually increased with an increase of the feed amount of the aqueous solution and finally reached the feed concentration of As at the inlet of the column. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Arsenic Symposium in Miyazaki 2010 発行日 2010-05 |
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| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
