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Optimization of anti-fouling performance of flat membrane module based on force analysis and micro-flow field regulation
Authors: LIU Zhengqiu, ZHANG Liqing, YANG Zhenghao, HU Jiyu, ZHANG Chao
Units: University of Ji’nan,Ji’nan,250022,China
KeyWords: force analysis; flat membrane module; micro-flow field; antifouling performance
ClassificationCode:TQ028.3,TQ028.3+8
year,volume(issue):pagination: 2022,42(2):110-116

Abstract:
  Based on the force analysis of micro-particles,the size optimization model of flat crossflow membrane module was established by combining the reverse idea of shallow tank sedimentation theory, and the size of flat membrane module was confirmed by using computational fluid dynamics (CFD) technology to simulate the micro-flow field. Humic acid (HA), sodium alginate (SA), and bovine serum albumin (BSA) were chosen as model foulants of effluent organic matter (EfOM) to investigate the antifouling performance of the membrane module experimentally.  The results showed that when the ratio of length, width and height of the membrane module was 40:30:1, the flux decline rate of the optimized membrane module for HA, SA and BSA decreased by 14%, 9.3% and 7.9% respectively in two hours compared with the original module. The  membrane fouling resistance was lower than that of the original module, indicating that the optimized membrane module using force analysis had a good effect on flow field and membrane fouling control.

Funds:
国家自然科学基金项目(51408260)和绿色建筑西部国家重点实验室开放项目(LSKF201807)资助.

AuthorIntro:
刘正球(1997年11月4日),男,江苏宿迁人,土木建筑学院研究生,主要从事膜分离相关工作,研究方向:纳滤膜抗污染相关研究

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