Utilization of annealed aluminum hydroxide waste with incorporated fluoride for adsorptive removal of heavy metals
文献类型：期刊论文
| 作者 | Liu, Ruiping; Ju, Jiawei; He, Ziliang; Hu, Chengzhi; Liu, Huijuan; Qu, Jiuhui |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2016-09-05 |
| 卷号 | 504期号:0页码:95-104 |
| 关键词 | Al(OH)(3) Fluoride Annealing Adsorption Alumina Heavy metals |
| 英文摘要 | The removal of fluoride by Al hydroxide [Al(OH)(3)] adsorption and aluminum (Al) coagulation produces spent wastes of Al(OH)(3)-F-ads and Al(OH)(3)-F-coag. This study prepared the annealed Al(OH)(3)-F-ads, Al(OH)(3)-F-coag, and pristine Al(OH)(3) at annealing temperature (AT) of 200 degrees C, 600 degrees C, and 900 degrees C, and compared their removal behaviors towards cadmium [Cd(II)], arsenite [As(III)], and arsenate [As(V)]. Annealing treatment decreased their BET surface area (S-BET) and isoelectric point (pH(iep)), and a more significant extent of decrease was observed at elevated AT. The incorporation of fluoride lowered their efficiency towards the removal of Cd(II), As(III), and As(V) as compared to Al(OH)(3). The elevated AT benefited Cd(II) adsorption whereas it inhibited the removal of As(III) and As(V) by any of the obtained aluminas, owing to the shift of pH(iep) to lower pH ranges at elevated AT. The adsorption of Cd(II) increased whereas that of As(III) and As(V) decreased with elevated pH, with electrostatic interactions playing a determining role. The release of fluoride from Al(OH)(3)-F-ads and Al(OH)(3)-F-coag did occur, and it could be controlled by annealing them at elevated AT. The annealed aluminas showed good affinity towards different heavy metals and may be reclaimed for the treatment of industrial wastewater. (C) 2016 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36088]  |
| 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,Ju, Jiawei,He, Ziliang,et al. Utilization of annealed aluminum hydroxide waste with incorporated fluoride for adsorptive removal of heavy metals[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2016,504(0):95-104. |
| APA | Liu, Ruiping,Ju, Jiawei,He, Ziliang,Hu, Chengzhi,Liu, Huijuan,&Qu, Jiuhui.(2016).Utilization of annealed aluminum hydroxide waste with incorporated fluoride for adsorptive removal of heavy metals.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,504(0),95-104. |
| MLA | Liu, Ruiping,et al."Utilization of annealed aluminum hydroxide waste with incorporated fluoride for adsorptive removal of heavy metals".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 504.0(2016):95-104. |
入库方式： OAI收割
来源：生态环境研究中心
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