Analysis of Operation Efficiency and Process Control of MBR Membrane for an Underground WWTP
In recent years,the AAO+MBR process has been widely used in the wastewater treatment plants(WWTPs),but there are few studies on the operational efficiency and process control of MBR membrane system at home.Based on the operating experience of a 100 000 m3/d underground WWTP built in Wuhan City in recent years,the general situation of AAO+MBR process design,operation efficiency,key points of process control and operation power consumption are studied,especially the treatment efficiency of MBR membrane system is studied emphatically.The results show that the MBR membrane system can degrade CODCr,ammonia nitrogen,TN and TP,and the removal rate of TN is low(10%～37%),the removal rate of other pollutants can reach more than 40%.The factors affecting the degradation rate of ammonia nitrogen and TN are the same as those of traditional biochemical treatment,mainly temperature and carbon source.The research is conducted to provide reference for the similar project design and operation management of follow-up similar projects.
AAO+MBRMBR operation efficiencyunderground wastewater treatment plant(WWTP)energy consumption analysisprocess control
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