Removal of Microcystins by Ultrafiltration Membrane without Pre-treatment
The removal efficiency and mechanisms of microcystins (MC-RR & MC-LR) from deionized water by ultrafiltration membrane(UF) were studied in the dead-end mode. The results showed that polyvinylchloride UF filtration alone could not efficiently and consistently remove microcystins, the rejection decreased over time from 26％(MC-RR) 、 42％(MC-LR) to 2％、10％, respectively. The influence of relevant operating parameters such as flux, initial feed concentration was evaluated, which indicated that higher flux could improve the removal efficiency for both microcystins. The PVC UF should be combined with other conventional water treatment technologies such as activated carbon adsorption and coagulation and so on to remove microcystins in water. The dominant removal mechanisms of microcystins by PVC UF membrane may be hydrogen bonding adsorption and electrostatic attraction.
Polyvinylchloride ultrafiltration membrane(PVC UF) Water treatment Microcystins Adsorption
Wei-ying Li Yong Zhao Liang-jie Xie Ling Chen
State Key laboratory of Pollution Control & Resource Reuse,Tongji University,1239 Siping Road Shangh College of Environmental Science and Engineering Tongji University,1239 Siping Road Shanghai,China Key Laboratory of Yangtze Aquatic Environment,Ministry of Education College of Environmental Science
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）