射流曝气膜生物反应器的除污特性  

CHARACTERISTICS OF REMOVING POLLUTANT BY JET-AERATION MEMBRANE BIOREACTOR

作　　者：陈宇[1] 李勇[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《水处理技术》2010年第10期92-96,共5页Technology of Water Treatment

基　　金："十五"国家重大科技水专项"苏州市城市水环境质量改善技术研究与综合示范"(2003AA601070);建设部科技计划项目"改进膜生物反应器的试验研究"(05-K2-1)

摘　　要：MBR将活性污泥处理法与膜分离技术相结合,是一种十分有前景的污水处理技术。本系统将射流曝气应用到膜生物反应器中,研究其处理生活污水的性能并取得了较好的处理效果。射流曝气提高了系统的氧利用效率及传质效率。经过射流曝气MBR处理后,COD、NH3-N、TN、浊度的平均去除率分别为88.5%、98%、71.7%、99.2%。由于系统运行期间不排泥,因此系统对TP的去除效果不好,平均去除率仅为15.3%。Membrane bioreactors are a promising process combination of activated sludge treatment and membrane filtration forbiomass retention. The objective of this investigation was to study the performance of treating domestic wastewaterby membrane bioReactor（MBR）, in which jet-aeration will be applied. Jet-aeration improved oxygen utilization ratio and mass transferefficiency. Aftertreating by jet-MBR, the COD,NH3-N,TN and turbidity, average removal efficiencies are 88.5%,98%,71.7%,99.2%. In the condition of no sludge discharge during operation, the TP removal is low, average removal efficiency is 15.3%.

关 键 词：膜生物反应器 射流曝气 生活污水 

分 类 号：TQ028.8[化学工程]