Adsorption and removal of antimony from aqueous solution by an activated Alumina |
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| Authors: | Yan‐Hua Xu Akira Ohki Shigeru Maeda |
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| Institution: | 1. Department of Bioengineering, Faculty of Engineering , Kagoshima University , 1–21–40, Korimoto, Kagoshima, 890–0065, Japan;2. Department of Bioengineering, Faculty of Engineering , Kagoshima University , 1–21–40, Korimoto, Kagoshima, 890–0065, Japan E-mail: ohki@apc.kagoshima‐u.ac.jp. |
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| Abstract: | The adsorption of Sb(V) ions from aqueous solutions onto commercially available activated alumina (AA) was investigated. AA has a much higher adsorption capacity than presently used adsorbents. Sb(V) ions are likely adsorbed through electrostatic attraction and/or specific adsorption mechanism, while the optimum pH is found in the range of 2.8–4.3. The Sb(V) ions adsorption capacities increase with increasing temperature. The addition of nitrate, acetate, arsenite, chloride, and silicate ions affected Sb(V) ions adsorption only slightly, while the coexisting ascorbate, arsenate, phosphate, sulfate, EDTA, tartrate, and citrate ions substantially depressed Sb(V) ions adsorption. |
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| Keywords: | Antimony adsorption removal activated alumina |
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