膜生物流化床除污效果研究  

Pollutants Removal Efficiency of Membrane-Fluidized Bed Bioreactor

作　　者：马金霞[1] 王世和[1] 沈倩宇[1] 

机构地区：[1]东南大学市政工程系,江苏南京210096

出　　处：《中国给水排水》2007年第15期73-75,共3页China Water & Wastewater

基　　金：江苏省建设系统科技项目(JS200308)

摘　　要：采用膜生物流化床处理城市污水,考察了其对污染物的去除效果。结果表明,在HRT为6 h、气水比为25∶1的条件下,膜生物流化床稳定运行时对COD、NH4+-N、TN、SS的去除率分别为95%、96%、80%和98%。膜生物流化床的流化特征及其微环境特性强化了反应器的生物去除效果,膜的截留作用保证了其连续运行的稳定性。The pollutants removal efficiency in treatment of the municipal wastewater by membrane - fluidized bed bioreactor was investigated. The results show that under the conditions of HRT of 6 h and air-water ratio of 25 ： 1, the removal rates of COD, NH4^＋ -N, TN and SS are 95%, 96%, 80% and 98% respectively. The unique fluidization and the micro-environment characteristic of the membrane - fluidized bed bioreactor enhance the pollutants removal efficiency of the bioreactor and the membrane separation guarantees its stable and continuous operation.

关 键 词：膜生物流化床 除污效果 生物膜 活性炭 

分 类 号：X703[环境科学与工程—环境工程]