Experimental study of arsenic removal by direct contact membrane distillation
文献类型：期刊论文
| 作者 | Qu, Dan ; Wang, Jun ; Hou, Deyin ; Luan, Zhaokun ; Fan, Bin ; Zhao, Changwei |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2009-04-30 |
| 卷号 | 163期号:1页码:874-879 |
| 关键词 | Arsenic removal Direct contact membrane distillation Water treatment Groundwater |
| 中文摘要 | Arsenite (As(III)) and arsenate (As(V)) removal by direct contact membrane distillation (DCMD) were investigated with self-made polyvinylidene fluoride (PVDF) membranes in the present work. Permeability and ion rejection efficiency of the membrane were tested before the arsenic removal experiments. A maximum permeate flux 20.90 kg/m(2) h was obtained, and due to the hydrophobic property, the PVDF membrane had high rejection of inorganic anions and cations which was independent of the solution pH and the temperature. The experimental results indicated that DCMD process had higher removal efficiency of arsenic than pressure-driven membrane processes, especially for high-concentration arsenic and arsenite removal. The experimental results indicated that the permeate As(III) and As(V) were under the maximum contaminant limit (10 mu g/L) until the feed As(III) and As(V) achieved 40 and 2000 mg/L, respectively. The 250 h simultaneous DCMD performance of 0.5 mg/L As(III) and As(V) solution was carried out, respectively. The permeate arsenic was not detected during the process which showed the PVDF membrane had stable arsenic removal efficiency. Membrane morphology changed slightly after the experiments, however, the permeability and the ion rejection of the membrane did not change. (C) 2008 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000264160000053 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21678]  |
| 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 | Qu, Dan,Wang, Jun,Hou, Deyin,et al. Experimental study of arsenic removal by direct contact membrane distillation[J]. JOURNAL OF HAZARDOUS MATERIALS,2009,163(1):874-879. |
| APA | Qu, Dan,Wang, Jun,Hou, Deyin,Luan, Zhaokun,Fan, Bin,&Zhao, Changwei.(2009).Experimental study of arsenic removal by direct contact membrane distillation.JOURNAL OF HAZARDOUS MATERIALS,163(1),874-879. |
| MLA | Qu, Dan,et al."Experimental study of arsenic removal by direct contact membrane distillation".JOURNAL OF HAZARDOUS MATERIALS 163.1(2009):874-879. |
入库方式： OAI收割
来源：生态环境研究中心
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