Title :
Fouling Behavior of Extra-Cellular Polysaccharide Produced by Micrococcus luteus during Dead-End Microfiltration
Author :
Feng, Lei ; Li, Xiufen ; Chen, Jian
Author_Institution :
Sch. of Environ. & Civil Eng., Jiangnan Univ., Wuxi, China
Abstract :
The extra-cellular polysaccharide (EPS) produced by Micrococcus luteus, a dominating strain isolated from the membrane biofouling layers, was purified. The typical polysaccharide absorption peaks were found for the purification substance in FTIR spectrum. The average molecular weight measured 63540 Da and average particle size was 162 nm for the EPS isolated. The membrane fouling was enhanced with increasing the feed EPS concentrations. Compared with the polyvinylidenefluoride (PVDF), the polypropylene (PP) membrane had stronger foul potential caused by the isolated EPS.
Keywords :
absorption; maintenance engineering; microfiltration; purification; separation; wastewater treatment; FTIR spectrum; Micrococcus luteus; dead-end microfiltration; extra-cellular polysaccharide; fouling behavior; membrane biofouling layers; membranes separation technology; polypropylene membrane; polysaccharide absorption peaks; polyvinylidenefluoride membrane; purification substance; wastewater treatment promising; Biomembranes; Capacitive sensors; Filtration; Isolation technology; Microfiltration; Microorganisms; Particle measurements; Polymers; Purification; Size measurement; EPS; MBR; Micrococcus luteus; biofouling;
Conference_Titel :
Energy and Environment Technology, 2009. ICEET '09. International Conference on
Conference_Location :
Guilin, Guangxi
Print_ISBN :
978-0-7695-3819-8
DOI :
10.1109/ICEET.2009.550
