MIAOZhou-wei,BAIHai-long,ZHOUChuan-ting,et al.Application of MBR Ultrafiltration Membrane in Wastewater Treatment of An Industrial Park[J].China Water & Wastewater,2025,41(8):97-102.
Application of MBR Ultrafiltration Membrane in Wastewater Treatment of An Industrial Park
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第8期
Page:
97-102
Column:
Date of publication:
2025-04-17
- Keywords:
- MBR; ultrafiltration membrane; membrane flux; pulse aeration
- Abstract:
- The wastewater treatment plant (WWTP) of an industrial park in Shanghai has a total design capacity of 5×104 m3/d, and adopts “one factory dual line” mode with each capacity of 2.5×104 m3/d, including one chemical wastewater treatment line and one domestic sewage treatment line. The main treatment process of the industrial line is MBR using microfiltration membrane. Ultrafiltration membrane is used to replace microfiltration membrane in MBR technical transformation, which significantly improves the operating efficiency of the membrane system. The changes of membrane flux, membrane aeration energy consumption, and membrane cleaning cost before and after the transformation are analyzed. The operating data show that MBR ultrafiltration membrane has a higher sustainable membrane flux than microfiltration membrane. When operating membrane flux is 15-20 L/(m2·h), transmembrane pressure (TMP) is stable below 10 kPa, which is much lower than that of conventional MBR microfiltration membranes. The effluent quality index is better than level A criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The aeration energy consumption per ton water is reduced by about 40%, and the membrane cleaning cost is reduced by about 44%.
Last Update:
2025-04-17