ZHANGJing,WENYing,ZHANGZhou-qiang,et al.Application of Ultrafiltration Technology in Large-scale Waterworks and Its Suggestion[J].China Water & Wastewater,2023,39(19):47-52.
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Application of Ultrafiltration Technology in Large-scale Waterworks and Its Suggestion

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第19期 Page: 47-52 Column: Date of publication: 2023-10-01
Author(s):
ZHANG　Jing1;  WEN　Ying1;  ZHANG　Zhou-qiang1;  WANG　Yi-fan2;  YANG　Fei-fan3;  QI　Tian-tian1
（1. Beijing Engineering Research Center for Drinking Water Quality， Technology Institute of Beijing Waterworks Group Co. Ltd.， Beijing 100012， China； 2. State Key Laboratory of Eco? hydraulics in Northwest Arid Region of China， Xi’an University of Technology， Xi’an 710048， China； 3. University of Regina， Canada）
Keywords:
ultrafiltration;  water distribution system;  waterworks;  disinfection by?product precursors
Abstract:
Both A waterworks with scale of 50×104 m3/d and B waterworks with scale of 8×104 m3/d in North China adopt the advanced treatment process of pressurized ultrafiltration. Based on the analysis of the treatment performances of two waterworks, attention should be paid to the blockage of membrane pores in the operation of ultrafiltration process when iron salt coagulant was used in the preceding process. When the coagulant was aluminum salt, the ultrafiltration had no intercepting effect on dissolved aluminum, and attention should be paid to the dosage of aluminum salt and the concentration of dissolved aluminum in effluent. For seasonal algae-laden raw water, attention should also be paid to algae and bacteria growth in the membrane shell. In addition, when sodium hypochlorite was used to control membrane fouling, the residual chlorine in effluent should be accurately controlled to stabilize the effluent pH and avoid the impact of pH fluctuations on the water quality of the pipe network.
Last Update: 2023-10-01