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Batch study of arsenate (V) adsorption using Akadama mud: Effect of water mineralization
http://hdl.handle.net/2241/105075
http://hdl.handle.net/2241/1050755c85dd2a-6b8c-4dc4-904d-91caef4d9467
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ASS_256-9_Fig&Tab.pdf (466.1 kB)
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ASS_256-9.pdf (142.6 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2010-04-28 | |||||
タイトル | ||||||
タイトル | Batch study of arsenate (V) adsorption using Akadama mud: Effect of water mineralization | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Chen, Rongzhi
× Chen, Rongzhi× Zhang, Zhenya× Feng, Chuanping× Lei, Zhongfang× Li, Yuan× Li, Miao× Shimizu, Kazuya× Sugiura, Norio |
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著者別名 |
陳, 栄志
× 陳, 栄志× 張, 振亜× 杉浦, 則夫 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Akadama mud, consisting mainly of different forms of iron and aluminum oxide minerals, was used for arsenate (V) adsorption from aqueous solutions. The adsorption process fitted the first-order kinetic equation and the Langmuir monolayer model well. The adsorption capacity, estimated by the Langmuir isotherm model, was 5.30 mg/g at 20 ± 0.5 °C. The effects of the solution properties (initial concentration of As (V), pH, temperature, and mineralization degree) on As (V) removal were investigated. Various mineralization degrees in underground water were simulated by adjusting the ionic strength of the solution or adding coexisting ions to the contaminated solution. It was found that mineralization of the water significantly influenced the arsenic adsorption. The existence of multivalent metallic cations significantly enhanced the As (V) adsorption ability, whereas competing anions such as fluoride and phosphate greatly decreased the As (V) adsorption. This result suggests that Akadama mud is more suitable for arsenic adsorption in low-level phosphate and fluoride solutions. The loaded Akadama mud could be desorbed at polar pH conditions, especially in acidic conditions, and more than 65% As (V) sorption has been achieved at pH 1. | |||||
書誌情報 |
Applied surface science 巻 256, 号 9, p. 2961-2967, 発行日 2010-02 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0169-4332 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1152169X | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.apsusc.2009.11.058 | |||||
権利 | ||||||
権利情報 | © 2009 Elsevier B.V. | |||||
著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Elsevier B.V. | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2241/105075 | |||||
識別子タイプ | HDL |