OVERVIEW AND RESEARCH PROGRESS OF MEMBRANE BIOREACTOR PROCESS
Membrane bioreactor(MBR)technology,which can combine membrane separation with biological treatment,has advantages of high treatment efficiency,strong adaptability and good application prospects.The basic principle and process type of MBR was briefly introduced in this paper.Besides,impacts of main factors like organic load,sludge concentration,pretreatment,aeration intensity,and temperature were systemically analyzed on the performance of the MBR process.Moreover,the MBR process possesses a great application prospect in municipal wastewater,rural dispersed wastewater,industrial wastewater,seawater desalination,and content recycling,due to easy assembly and a high degree of modularity.Additionally,it is shown that MBR process is mainly used in upgrading large sewage plants,advanced treatment of sewage,and recovery of dispersed sewage in small sewage plants based on practical examples.The existing problems of MBR were also pointed out.Next,the latest research progress of MBR process,including membrane material development,process optimization,new MBR type,microorganisms,process combination,and emerging pollutants were introduced in detail in this paper.At the end of this paper,the future development trends of MBR process were provided as well,pointing out that solving membrane pollution and reducing energy consumption were the research directions for subsequent MBR process optimization.
membrane bioreactorsewage treatmentwater recycleproject case
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