Effect of C/N ratio and aeration rate on performance of internal cycle MBR with synthetic wastewater

摘要

Effect of C/N ratio and aeration rate on performance of continuously operated internal circulation membrane bioreactor (ICMBR) was investigated thoroughly using synthetic domestic wastewater. The results show that COD and total nitrogen (TN) removal efficiencies were improved with the increase of C/N ratio under certain conditions (T = 25 degrees C, MLSS = 10 g/L, aeration rate was 0.15 m(3)/h, influent NH3-N concentration was 20 mg/L, influent