Use combination aeration membrane bioreactor for urban sewage processing, when influent CODCr, BOD5, NH3-N concentration ranged:53.15∼978.50 mg/L, 28.23∼431.55 mg/L, 4.14∼37.78 mg/L, when the hydraulic retention time (HRT) for 4 h, 6 h, 8 h, CODCr, BOD5 and NH3-N the average removal efficiencies were: above 90%, above 95%, above 90%, the best HRT for 6 h. Stable effluent quality, its range was CODCr: 3.5∼30 mg/L; BOD5: below 5 mg/L; NH3-N: below 5 mg/L, effluent quality is better than The Reuse of Urban Recycling Water-Water Quality Standard for Urban Miscellaneous Water Consumption(GB/T 18920-2002).
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