Water treatment by enhanced ultrafiltration

被引：27
|
作者：
Verbych, S. [1 ]
Bryk, M. [1 ]
Zaichenko, M. [1 ]
机构：
[1] Natl Univ Kyiv Mohyla Acad Ukraine, Ecol Res Ctr, 2 Skovoroda Str, UA-04070 Kiev, Ukraine
来源：
DESALINATION | 2006年 / 198卷 / 1-3期
关键词：
metal removal; chitosan; enhanced ultrafiltration;
D O I：
10.1016/j.desal.2005.12.029
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The efficiency of removal of copper ions from aqueous solutions was investigated by means of ultrafiltration enhanced with chitosan. The different experimental parameters such as initial concentration of metal ions, background electrolytes, pH solutions, ultrafiltration membranes of different molecular weight cut-offs on the kinetic of copper extraction as well as polymer rejection were studied. Presence of chitosan in feed solution provided effective removal of metal ions from an aqueous medium because of formation of complexes and their consequent deposition on the membrane surface and pores. The metal rejection increased with pH growth, exceeding 90% in neutral/alkaline solutions. The same tendency was observed at the different ratio values between chitosan and copper. The effectiveness of metal rejection improved with the increase in this ratio due to intensification of the entire metal-biopolymer interaction.
引用
收藏
页码：295 / 302
页数：8
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