Title :
Removal of Microcystins by Ultrafiltration Membrane without Pre-Treatment
Author :
Li, Wei-ying ; Zhao, Yong ; Xie, Liang-jie ; Chen, Ling
Author_Institution :
State Key Lab. of Pollution Control & Resource Reuse, Tongji Univ., Shanghai, China
Abstract :
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.
Keywords :
filtration; membranes; proteins; water treatment; adsorption; deionized water; electrostatic attraction; hydrogen bonding; microcystins; removal efficiency; ultrafiltration membrane; water treatment; Amino acids; Biomembranes; Coagulation; Educational institutions; Feeds; Filtration; Pollution control; Reservoirs; Water pollution; Water resources;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163310
