Characteristics of Fouled and Chemically Cleaned Membrane

Abstract:

The main objective of this study was to investigate membrane fouling caused by natural organic matter (NOM). Flux measurement, fourier transform spectroscopy (FTIR), scanning electron microscopy (SEM) were employed to compare the surface morphology of fouled membrane and chemically cleaned membrane. Sodium hypochlorite (NaClO), sodium hydroxide (NaOH), hydrochloric acid (HCl) were used as chemical cleaning agents respectively. Flux analysis demonstrated that chemical cleaning have little effect on flux recovery. FTIR spectrometry revealed that polysaccharide and protein took the major responsibility for membrane fouling. SEM showed that foulants filled the pores and blocked the membrane surface which led to the flux decline.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 751-754
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.751
• Online since: December 2014
• Authors: Jun Xia Liu*, Bing Zhi Dong, Wei Wei Huang
• Keywords: Flux, FTIR, Membrane Fouling, SEM

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