Reusability of Al-F Hydroxide Precipitates Generated in Adsorption and Coagulation Treatment of Fluoride for Adsorptive Removal of Arsenic
文献类型：期刊论文
| 作者 | Ju, Jiawei; He, Zan; Liu, Ruiping; Liu, Huijuan; Zhang, Xiwang; Qu, Jiuhui |
| 刊名 | ENVIRONMENTAL ENGINEERING SCIENCE
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 32期号:7页码:613-621 |
| 关键词 | adsorption Al(OH)(3) arsenic fluoride reclamation |
| 英文摘要 | This study aims to investigate the feasibility of utilizing Al-F hydroxide precipitates generated in Al hydroxide [Al(OH)(3)] adsorption [Al(OH)(3)-F-ads] and aluminum (Al) coagulation [Al(OH)(3)-F-coag] for adsorptive removal of As(III) and As(V). Al(OH)(3)-F-ads, Al(OH)(3)-F-coag, and pristine Al(OH)(3) were characterized by nitrogen sorption, X-ray photoelectron spectroscopy, and fourier transform infrared spectroscopy (FTIR) before and after arsenic adsorption. The kinetic study indicated that As(III) and As(V) adsorption on these Al-based solid wastes followed the pseudo-second-order model. The calculated adsorption capacity of Al(OH)(3)-F-ads and Al(OH)(3)-F-coag for As(III) was 48.0 and 31.0mg/g, while it was 84.0 and 56.3mg/g for As(V), respectively. These adsorption capacities were 25-50% lower compared with pristine Al(OH)(3). Anion exchange of fluoride by H2AsO4- and HAsO42- dominated in As(V) removal by Al(OH)(3)-F-ads,F- while formation of an As-O complex played a more important role in As(V) removal by Al(OH)(3)-F-coag. The maximum concentration of released fluoride after the adsorption of As(III) and As(V) by Al(OH)(3)-F-ads and Al(OH)(3)-F-coag was below the Chinese Class-II industrial discharge standard for fluoride (<20mg/L). Results from this study indicated that the aluminum hydroxides generated in the fluoride removal process could be reclaimed as an adsorbent for As(III)/As(V) removal from industrial wastewater. |
| 研究领域[WOS] | Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:000363873200007 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32656]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ju, Jiawei,He, Zan,Liu, Ruiping,et al. Reusability of Al-F Hydroxide Precipitates Generated in Adsorption and Coagulation Treatment of Fluoride for Adsorptive Removal of Arsenic[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2015,32(7):613-621. |
| APA | Ju, Jiawei,He, Zan,Liu, Ruiping,Liu, Huijuan,Zhang, Xiwang,&Qu, Jiuhui.(2015).Reusability of Al-F Hydroxide Precipitates Generated in Adsorption and Coagulation Treatment of Fluoride for Adsorptive Removal of Arsenic.ENVIRONMENTAL ENGINEERING SCIENCE,32(7),613-621. |
| MLA | Ju, Jiawei,et al."Reusability of Al-F Hydroxide Precipitates Generated in Adsorption and Coagulation Treatment of Fluoride for Adsorptive Removal of Arsenic".ENVIRONMENTAL ENGINEERING SCIENCE 32.7(2015):613-621. |
入库方式： OAI收割
来源：生态环境研究中心
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