The results indicate that with HRT of 14.5 h and DO of 4 mg/L,MBR can achieve a COD removal rate of 88% with effluent COD of 71.3 mg/L.

• 结果发现水力停留14.；5 h；DO约4 mg/L时；MBR对石化废水的化学需氧量(COD)去除率达到88%25；膜出水COD为71