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题名: Hollow fiber ultrafiltration membranes made from blends of PAN and PVP
作者: Qin, JJ;  Cao, YM;  Li, YQ;  Li, Y;  Oo, MH;  Lee, HW
关键词: polyacrylonitrile ;  PVP blend ;  ultrafiltration ;  hollow fiber membrane ;  hypochlorite treatment ;  fouling tendency
刊名: SEPARATION AND PURIFICATION TECHNOLOGY
发表日期: 2004-04-15
DOI: 10.1016/S1383-5866(03)00210-7
卷: 36, 期:2, 页:149-155
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Polyacrylonitrile (PAN) hollow fiber ultrafiltration (UF) membranes have been made from a new dope solution containing PAN/N,N-dimethylformamide (DMF)/poly(vinyl pyrrolidone) (PVP 360K)/1,2-propanediol by using a dry-jet wet spinning process. The as-spun fibres were post-treated by means of hypochlorite solutions with different concentrations. The experimental results showed that water flux of a membrane decreased but retention for the same solute increased with increasing air gap. The flux of a treated membrane was about twice higher than that of an untreated membrane. Retentions of an untreated membrane and a treated membrane for PEG 35K were 94 and `1%, respectively. There was an optimum hypochlorite concentration for the treatment to achieve a PAN membrane with a pure water flux of over 200 x 10(-5) l m(-2) h(-1) Pa(-1). The experimental results also showed that the treated membranes experienced higher fouling tendencies than the untreated membrane, mainly due to an increase in contribution of fouling resistance from surface adsorption and pore plugging to the total relative flux reduction. (C) 2003 Elsevier B.V. All rights reserved.
关键词[WOS]: AIR-GAP DISTANCE ;  THERMAL-PROPERTIES ;  MORPHOLOGY
语种: 英语
WOS记录号: WOS:000220436900007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139564
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Singapore Utilities Int Pte Ltd, Ctr Adv Water Technol, Singapore 637723, Singapore
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Nanyang Technol Univ, Inst Environm Sci & Engn, Innovat Ctr, Singapore 637723, Singapore

Recommended Citation:
Qin, JJ,Cao, YM,Li, YQ,et al. Hollow fiber ultrafiltration membranes made from blends of PAN and PVP[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2004,36(2):149-155.
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