Airlift oxidation ditch combined membrane bioreactor for wastewater treatment: performance and optimization
Wastewater treatment performance of a pilot-scale airlift oxidation ditch combined membrane bioreactor (AOD-MBR) was studied in a wastewater treatment plant.Pollutant removal efficiency of the reactor under different operating conditions and membrane fouling characteristics were investigated.The concentrations of COD,NH4+-N and TN in the effluent all met the first grade A of the National Discharge standard of pollutants for municipal wastewater treatment plant(GB18918-2002),when hydraulic retention time (HRT) was 9,6.75 and 5.4 h.The effluent TP concentration reached the secondary grade standard.The optimized aeration mode for the pilot-scale AOD-MBR was small bubble aeration with an aeration demand of 48 m3/h,meanwhile the gas-water ratio was 6:1,which was greatly lower compared with traditional MBR.
airlift oxidation ditch membrane bioreactor nitrogen and phosphorus removal municipal wastewater membrane fouling
ZHANG Hongyang XIA Junlin SUN Jianyu YAN Xiaoxu XIAO Kang HUANG Xia SHI Hanchang
State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, T College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, Chi
国际会议
北京
英文
133-134
2015-11-02（万方平台首次上网日期，不代表论文的发表时间）