滤层高度对升流式曝气生物滤池硝化性能的影响  

EFFECT OF FILTER LAYER HEIGHT ON UPFLOW BIOLOGICAL AERATED FILTER (UBAF) NITRICATION PERFORMANCE

作　　者：李方[1] 杨波[1] 田晴[1] 孙志国 陈季华[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620 [2]宜兴帕克德环保技术有限公司,江苏宜兴200023

出　　处：《水处理技术》2008年第10期46-49,共4页Technology of Water Treatment

基　　金：上海市重点学科建设项目(B604)

摘　　要：曝气生物滤池水质沿滤料层高度不断变化,滤层高度影响滤池的工作性能。曝气生物滤池有机物、浊度的去除,主要发生在滤层的前半部分;而中段是NH3-N的主要去除区域。从异养菌、亚硝化菌和硝化细菌三者的sOUR的值来看,异养菌活性在滤池的下层比较强,而亚硝化菌、硝化菌等自养菌则在系统的中、上层比较活跃。滤池水力负荷在一定范围内的变化,对有机物、NH3-N、浊度总去除效率影响不大。The variation of effluent quality along the filter height in UBAF showed that the filter height the influenced the performance. The removal of organic compounds and turbidity in BAF mainly occurred in the first half of the filter layer, while NH3-N was mainly removed in the middle layer. According to the sour of heterotrophs, Nitrosomonas, Nitrobacter, the activities of heterotrophs were higher in the substrate layer than those of autotrophs occurred in the mid and up layer. The changes of filter hydraulic load in a certain scope, which impact on the gross COD removal, NH3-N and turbidity, can be negligible.

关 键 词：曝气生物滤池 滤层高度 耗氧呼吸速率 硝化 

分 类 号：X703.1[环境科学与工程—环境工程]