Evaluation of antifouling and antibacterial properties of Polyethersulfone/Chitosan membrane in dairy wastewater treatment

The use of membrane technology is widely increasing in water and wastewater treatment. Natural organic matter fouling is a critical factor controlling the performance of membrane systems such as Ultrafiltration (UF) membranes. In this study, a layer of Chitosan (CS) was coated on the surface of Polyethersulfone (PES) membrane to improve the surface properties as well as performance of the membrane. Flux decline data were obtained for the filtration of dairy wastewater with the PES and CS/PES membranes. The presence of CS on the surface of the PES membrane improved the antibacterial activity, antifouling property and removal efficiency of the membrane

Keywords:

antibacterial activity , antifouling property , Chitosan , Ultrafiltration membrane