Abstract: Research of Hollow Fiber Ultrafiltration Membrane in water Treatment WEN pei，QIAN Jianhua (College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China) Abstract In order to test the performance of different hollow fiber ultrafiltration menbranes in waste water treatment., three kinds of hollow fiber ultrafiltration membranes are used in filtering of tap water and waste water. They are PES，PP and PAN ultrafiltration membrane. The change of color, turbidity, PH value, conductivity, ammonia nitrogen content, COD and water flow before and after filtration are evaluated. Scanning electron microscopy (SEM) images of membrane surface and cross-section are used to observe the membrane morphology. The result shows that PES ultrafiltration membranes have the highest comprehensive performance. Ability of Ultrafiltration membranes removing ammonia nitrogen and COD are limited, while this situation can be improved by using two or three membrane filtration systems. The finger-like pore structure shows better antifouling performance than the pore structure. Key words PES ultrafiltration membrane; PP ultrafiltration membrane; PAN ultrafiltration membrane; Waste water treatment; SEM

Key words: PES ultrafiltration membrane, PP ultrafiltration membrane, PAN ultrafiltration membrane, waste water treatment