Application of Positively Charged Composite Hollow-Fiber Nanofiltration Membranes for Dye Purification

被引：62
|
作者：
Wei, Xiuzhen [1 ,2 ]
Wang, Songxue [1 ,2 ]
Shi, Yingying [1 ,2 ]
Xiang, Hai [3 ]
Chen, Jinyuan [1 ,2 ]
机构：
[1] Zhejiang Univ Technol, Coll Biol & Environm Engn, Hangzhou 310014, Zhejiang, Peoples R China
[2] Zhejiang Univ Technol, Top Key Discipline Environm Sci & Engn, Hangzhou 310014, Zhejiang, Peoples R China
[3] Zhejiang Chinese Med Univ, Coll Bioengn, Hangzhou 310053, Zhejiang, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2014年 / 53卷 / 36期
关键词：
WASTE-WATER; PERFORMANCE EVALUATION; CELLULOSE-ACETATE; AQUEOUS-SOLUTIONS; REVERSE-OSMOSIS; PERMEATE FLUX; REMOVAL; REUSE; DESALINATION; SEPARATION;
D O I：
10.1021/ie5017688
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A positively charged, composite, hollow-fiber nanofiltration (NF) membrane was fabricated by interfacial polymerization using polyethylenimine and trimesoyl chloride as reactive monomers. Rejection rates of different salts and dyes were measured by the NF membranes at various pH values. The effects of dye and salt concentrations on the membrane performance for dye purification were investigated. The dye and salt rejection rates would gradually decrease with an increase in the dye and salt concentrations. Then the influence of the volume concentration factor on dye purification during constant volume batch diafiltration process was studied. The results indicated that the higher of the concentration factor was, the better the concentration effect would be, and the less time would be needed.
引用
收藏
页码：14036 / 14045
页数：10
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