Effect of highly concentrated salt on retention of organic solutes by nanofiltration polymeric membranes
文献类型：期刊论文
| 作者 | Luo, Jianquan1,2; Wan, Yinhua1 |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2011-04-15 |
| 卷号 | 372期号:1-2页码:145-153 |
| 关键词 | Desalination Salt effect Membrane swelling Dehydration Nanofiltration |
| ISSN号 | 0376-7388 |
| 通讯作者 | Wan, YH |
| 英文摘要 | During desalination of feed with highly concentrated salt by nanofiltration (NF), predictive modeling was difficult due to the effect of salt on retention of organic solutes. Consequently, a better understanding of salt effect on membrane and organic solutes was required. In this study, four well-known commercially available NF polymeric membranes, NF270, NF-, Desal-5 DL and Nanomax50, were analyzed by a model based on an extended Nernst-Planck equation, using highly concentrated glucose and sodium chloride (NaCl) solutions. The results showed that with increasing salt concentration, the solute-to-pore size ratio (lambda(i)) decreased while the ratio of effective membrane thickness to porosity (Delta x/epsilon) increased, indicating that the effect of salt may include decreasing solutes size, increasing membrane pore size, and increasing effective membrane thickness. Moreover, such salt effect appeared to be independent of membrane and solute types, and the correction model could well predict the retention of charged solutes at high salt concentration because electrostatic repulsion effect between charged solutes and membranes was completely screened by the salt ions. Meanwhile, several hypotheses such as membrane swelling, hydration layer thinning and particle collision were provided to explain the change of model parameters by highly concentrated salt. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Polymer Science |
| 研究领域[WOS] | Engineering ; Polymer Science |
| 关键词[WOS] | ATOMIC-FORCE MICROSCOPY ; AMINO-ACID ; DEAD-END ; PERFORMANCE ; SEPARATION ; DESALINATION ; WATER ; ELECTROLYTES ; PURIFICATION ; TEMPERATURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289829200016 |
| 公开日期 | 2013-11-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5047]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Jianquan,Wan, Yinhua. Effect of highly concentrated salt on retention of organic solutes by nanofiltration polymeric membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2011,372(1-2):145-153. |
| APA | Luo, Jianquan,&Wan, Yinhua.(2011).Effect of highly concentrated salt on retention of organic solutes by nanofiltration polymeric membranes.JOURNAL OF MEMBRANE SCIENCE,372(1-2),145-153. |
| MLA | Luo, Jianquan,et al."Effect of highly concentrated salt on retention of organic solutes by nanofiltration polymeric membranes".JOURNAL OF MEMBRANE SCIENCE 372.1-2(2011):145-153. |
入库方式： OAI收割
来源：过程工程研究所
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