Title :
The Adsorption of Microcystins by Polyvinylchloride (PVC) Ultrafiltration Membrane
Author :
Li, Wei-ying ; Zhang, Ming ; Pei, Jian ; Chen, Ling
Author_Institution :
State Key Lab. of Pollution Control & Resource Reuse, Tongji Univ., Shanghai, China
Abstract :
Cyanobacterial toxins which presented in drinking water sources posed a considerable threat to human health. In this study, the removal of cyanotoxins, including microcystin-RR, microcystin-LR and microcystin-YR, by ultrafiltration (UF) membrane made of polyvinylchloride was investigated. It was found that cyanotoxins were removed mainly by adsorption of PVC membrane, at least at initial stage of the filtration. Adsorption was primarily attributed to hydrophobic interactions, although hydrogen bonding and physical surface properties such as surface roughness, thickness, and porosity may also play a role. The initial feed concentration of cyanotoxins had a significant influence on the adsorption capacity of PVC membrane, which could be described based on a linear adsorption isotherm in the experimental range.
Keywords :
adsorption; biochemistry; contamination; hydrogen bonds; membranes; microorganisms; polymers; porosity; surface roughness; ultrafiltration; water pollution; cyanobacterial toxins; cyanotoxins; drinking water sources; hydrogen bonding; hydrophobic interactions; linear adsorption isotherm; microcystins; polyvinylchloride ultrafiltration membrane; porosity; surface roughness; Amino acids; Biomembranes; Filtration; Humans; Pollution control; Rivers; Rough surfaces; USA Councils; 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.2009.5163568
