Simultaneous removal of arsenate and fluoride by iron and aluminum binary oxide: Competitive adsorption effects
文献类型：期刊论文
| 作者 | Liu, Ruiping ; Gong, Wenxin ; Lan, Huachun ; Yang, Tianming ; Liu, Huijuan ; Qu, Jiuhui |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2012 |
| 卷号 | 92页码:100－105 |
| 关键词 | Arsenate Fluoride Competitive adsorption Iron and aluminum binary oxide Simultaneous removal |
| ISSN号 | 1383-5866 |
| 中文摘要 | This study proposes the use of iron and aluminum binary oxide (FeAlOxHy) to achieve the simultaneous removal of arsenate [As(V)] and F, and the competitive adsorption between As(V) and F are investigated. Iron oxyhydroxide (FeOxHy) shows a high removal capability towards As(V) but exhibits little efficacy to remove F in systems where both As(V) and F co-exist or for solutions of fluoride alone. The introduction of aluminum oxyhydroxide (AlOxHy) to FeOxHy within FeAlOxHy enables the removal of F as well as As(V). AlOxHy may simultaneously remove As(V) and F over a wide pH range from 4 to 11; however, the removal of As(V) and F is highly pH dependent and the maximum removal is observed at the weakly acidic pH of 6. The electrostatic force at different pH plays a role, but the dissolution of AlOxHy), dominates in the lower removal of As(V) and F by AlOxHy especially at low pH. Furthermore, the removal of As(V) and F by AlOxHy in the co-existing system is lower than that in single pollutant systems due to competitive adsorption effects. The introduction of FeOxHy to AlOxHy significantly alleviates the effect of pH on the removal of As(V) and F by AlOxHy; moreover, the adverse effects of competitive adsorption between As(V) and F are inhibited to a large extent. In comparison to FeOxHy and AlOxHy, FeAlOxHy shows superior performance in achieving the simultaneous removal of As(V) and F and may be used to treat water containing both As and F. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000304584500014 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7821]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Ruiping,Gong, Wenxin,Lan, Huachun,et al. Simultaneous removal of arsenate and fluoride by iron and aluminum binary oxide: Competitive adsorption effects[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2012,92:100－105. |
| APA | Liu, Ruiping,Gong, Wenxin,Lan, Huachun,Yang, Tianming,Liu, Huijuan,&Qu, Jiuhui.(2012).Simultaneous removal of arsenate and fluoride by iron and aluminum binary oxide: Competitive adsorption effects.SEPARATION AND PURIFICATION TECHNOLOGY,92,100－105. |
| MLA | Liu, Ruiping,et al."Simultaneous removal of arsenate and fluoride by iron and aluminum binary oxide: Competitive adsorption effects".SEPARATION AND PURIFICATION TECHNOLOGY 92(2012):100－105. |
入库方式： OAI收割
来源：生态环境研究中心
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