An A/O submerged membrane bioreactor and its membrane fouling research in treating bathing wastewater
A membrane bioreactor(MBR)process was used to treat the bathing wastewater from Tongii University and the effluent was reclaimed to supply the water body of University.The influent LAS.Turbidity,BOD5,COD,SS,T-N and T-P averaged at 7,110,50,108,160,36 and 0.6 mg/L respectively.The final treated effluent LAS,Turbidity,BOD5,COD,SS,T-N and T-P for the same period averaged 0.2,O.4,2,15,O,6 and 0.02 mg/L respectively.The operating results of the process demonstrate that the MBR process is both effective and efficient in meeting the wamr discharge and reuse quality requirements fGB/T 18921-2002).Membrane fouling was analyzed by trails-membrane pressure(TMP),and floc size of sludge.Terminal restriction fragment length polymorphism(T-RFLP)was used to analyze the microbial community structure on the surface of membrane in order to study the biofouling of membrane of MBR.The results indicated that the biofilm formation induced the membrane fouling and that some specific phylogenetic group of bacteria,the Pseudomonas sp.,Ochrobactrum anthropi sp.and Enterobacter sp.,probably played a major role in the development of the biofdms,which led to the severe irreversible membrane biofouling.
Membrane Bioreactor(MBR) bathing wastewater treatment trails-membrane pressure(TMP) Floc size Terminal restriction fragment length polymorphism(T-RFLP)
XIA Si-qing GUO Ji-feng WANG Rong-chang
State Key Laboratory of Pollution Control and Resource Reuse,School of Environmental Science and Engineering,Tongji University,Shanghai,200092,P.R.China
国际会议
西安
英文
489-495
2008-05-15（万方平台首次上网日期，不代表论文的发表时间）