The integrated MBR process was used to treat domestic wastewater. The average removal rates of COD
NH4-N and TP were 88.9%
94.6%
and 61.60% respectively under the condition of dissolved oxygen DO(0.1-3.5 mg/L) and MLSS(12 650 mg/L). The results showed that the MBR had good synchronous degradation of COD and nitrogen and phosphorus removal
which was of great significance for the improvement of nitrogen and phosphorus removal in wastewater treatment plants.