Experimental Investigation of Biofouling Mechanism of RO Membrane for Wastewater Advanced Reuse
Yu Haiqin,Sun Huide,Chen Rui,Yang Chengyong and Zhou Yukun
DOI:10.3969/j.issn.1674-4764.2013.01.021
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2013,Pages 128-134
- Abstract
Biofouling has become the focus of RO in water and wastewater treatment. Experimental investigation of RO biofouling mechanism and characteristics in wastewater advanced reuse was carried out by static test and cross-flow dynamic test on a lab-scale membrane fouling simulator(MFS).The experimental results show that the major contributors to biofouling are coli and filamentous bacteria; there usually is no biofouling on the RO membrane surface with the absence of microbial source and nutrient composition; it is easy to cause biofouling on the fouled membrane; the germicidal treatment and the protection in the shut-down period are important for RO. Guidance for the analysis and reduction of biofouling in the practical engineering is provided.