MAChuan-jing,LIUHai-yuan,YANGDe-qiang.Study on Off-line Cleaning Method and Economy of Grease Pollution in Immersed Membrane Bioreactor[J].China Water & Wastewater,2023,39(16):105-109.
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Study on Off-line Cleaning Method and Economy of Grease Pollution in Immersed Membrane Bioreactor

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第16期 Page: 105-109 Column: Date of publication: 2023-08-17
Author(s):
MA　Chuan-jing1;  LIU　Hai-yuan1;  YANG　De-qiang2; 3
（1. Beijing Origin Water Environmental Technology Co. Ltd.， Beijing 102206， China； 2. Taiyuan Origin Water Water Co. Ltd.， Taiyuan 030000， China； 3. Taiyuan Urban Drainage Management Center， Taiyuan 030000， China）
Keywords:
membrane bioreactor;  grease pollution;  off-line cleaning;  CTAB
Abstract:
An underground sewage treatment plant adopts AAO and MBR treatment process. Aiming at the problem of frequent off-line membrane washing and the rapid rise of transmembrane pressure after membrane washing, the pollutant types and membrane structure are characterized and analyzed firstly, focusing on the off-line cleaning method of grease contaminated membrane filaments. It is found that the soaking effect of citric acid and cetyltrimethyl ammonium bromide (CTAB) before NaClO and CTAB is the best, and the economic benefits are analyzed for the off-line membrane washing method.
Last Update: 2023-08-17