Using the continuous flow-intermittent aeration process to treat domestic sewage, and the effect of different intermittent aeration patterns on COD, NH_4~+-N, TN and TP removal efficiency was researched. The results showed that the operation method of the intermittent aeration was conducive to inhibit sludge bulking problem, the COD removal rate was over 82% in all working conditions, and it increased with the increase of time, the maximum removal rate could reach 92%. The mass concentration of TP in efflue...