Flux decline control in nanofiltration of detergent wastewater by a shear-enhanced filtration system
文献类型：期刊论文
| 作者 | Luo, Jianquan1; Ding, Luhui1; Wan, Yinhua2; Jaffrin, Michel Y.3 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 181期号:0页码:397-406 |
| 关键词 | Nanofiltration Surfactant Shear rate pH Concentration polarization |
| ISSN号 | 1385-8947 |
| 通讯作者 | Ding, LH |
| 英文摘要 | Treatment of wastewater containing a cleaning-in-place detergent was investigated by using a rotating disk module equipped with a nanofiltration (NF) membrane. At a rotational speed of 2000 rpm, a pH 7.2 and 25 degrees C. the permeate flux reached a plateau at 350 Lm(-2) h(-1) above 35 bar while rejection of conductivity and COD were respectively 93 and 97%. When a pretreatment by ultrafiltration (UF) was carried out before the NF, the NF flux increased linearly with TMP to reach 450 Lm(-2) h(-1) at 40 bar while COD of NF permeate was a little lower than without pretreatment. Both permeate flux and conductivity rejection increased with increasing pH. High membrane shear rates prevented flux decline with time, as surfactant molecules were dragged away from membrane surface, preventing surfactant aggregates formation. The disk rotational speed necessary for flux stability increased with TMP from 1000 rpm at 10 bar to 2000 rpm at 30 bar. Increasing feed pH had a similar effect by enhancing electrostatic repulsion between surfactant molecules and membrane. Raising the temperature to 45 degrees C increased the permeate flux to over 500 Lm(-2) h(-1) at 30 bar and 2000 rpm. This work confirms the high performance of high shear dynamic filtration in detergent wastewater treatment by NF system both in terms of permeate flux and ion and COD rejections due to reduction in concentration polarization, so that a UF pretreatment was not necessary. (C) 2011 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | NONIONIC SURFACTANTS ; NETWORK OPTIMIZATION ; ANIONIC SURFACTANT ; ULTRAFILTRATION ; MEMBRANES ; SEPARATION ; MODULE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301087000044 |
| 公开日期 | 2013-10-24 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3922]  |
| 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.Univ Technol Compiegne, EA TIMR 4297, F-60205 Compiegne, France 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Univ Technol Compiegne, UMR 6600, F-60205 Compiegne, France |
| 推荐引用方式 GB/T 7714 | Luo, Jianquan,Ding, Luhui,Wan, Yinhua,et al. Flux decline control in nanofiltration of detergent wastewater by a shear-enhanced filtration system[J]. CHEMICAL ENGINEERING JOURNAL,2012,181(0):397-406. |
| APA | Luo, Jianquan,Ding, Luhui,Wan, Yinhua,&Jaffrin, Michel Y..(2012).Flux decline control in nanofiltration of detergent wastewater by a shear-enhanced filtration system.CHEMICAL ENGINEERING JOURNAL,181(0),397-406. |
| MLA | Luo, Jianquan,et al."Flux decline control in nanofiltration of detergent wastewater by a shear-enhanced filtration system".CHEMICAL ENGINEERING JOURNAL 181.0(2012):397-406. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。