[Municipal wastewater treatment by integrated bioreactor of contact oxidation and filtration separation].

An intermittently integrated bioreactor of contact oxidation and filtration separation was applied to treat municipal wastewater, which was packed with combination medium. Experimental results show that at the condition of aeration time 60 min, DO 2-3 mg/L, organic volume load of upper packing 2.4 kg/(m3 x d) and initial filtration velocity 5 m/h, the average removal rates of COD, ammonia nitrogen and turbidity reach 90.6%, 81.4% and 96.7% respectively, but this treatment process seems to be not available in phosphorus removal. The average removal rate of TP is 60.1%.