复合-膜生物流化床的污染物去除特性研究  

STUDY ON CHARACTERISTICS OF A COMPOUND-MEMBRANE-FLUIDIZED BED BIOREACTOR FOR CONTAMINANTS REMOVAL

作　　者：鲍依文[1] 王世和[1] 马金霞[1] 

机构地区：[1]东南大学市政工程系,江苏南京210096

出　　处：《水处理技术》2009年第7期83-87,共5页Technology of Water Treatment

基　　金：江苏省建设厅资助项目(JS200308)

摘　　要：将普通膜生物反应器、生物流化床与生物接触氧化工艺有机集成,形成复合膜生物流化床工艺,以此处理城市污水。考察了系统的污染物去除效果及不同位置填料对污染物去除特性的影响。结果表明,系统对COD、NH4+-N和总氮有良好的处理效果,平均去除率分别为96.8%、96.3%和71.6%;对总磷的去除,随运行历程的延长效果降低,平均去除率仅为46.8%;填料的添加提高了系统总氮去除能力。由于缺氧区下部的填料有充足的碳源和更好的缺氧环境,因此填料位于缺氧区下部时系统处理效果更好。The biological fluidized bed and the biological contact oxidation wereintegratedinto the membranebioreactor to get membrane-fluidized bed bioreactor （C-MFB） which adopted to treat the municipal wastewater. The removal effect of the contaminants by the system and the influence of padding in different positions on its contaminants removal characteristics were studied. The results showed that C-MFB had better removal effect in COD, NH4＋ -N and TN, with the average removal rate of 98.1%, 96.3% and 71.6% respectively. For the removal of TP, its effect decreased with the system running and the average removal rate was only 46.8%. The padding mainly increased the removal effect of TN. It showed that the system with the padding beneath the influent pipe in the anoxic area has better treatment effect because of the plenty carbon source and advantaged anoxic environment.

关 键 词：膜生物反应器 生物流化床 生物接触氧化 去除特性 

分 类 号：X703.1[环境科学与工程—环境工程]