曝气生物滤池的启动与挂膜特性对比分析  

Contrastive Analysis of the Start-up and Film Formation Properties of the Biological Aerated Filter

作　　者：王宏[1] 张林军[1] 

机构地区：[1]徐州工程学院土木工程系,江苏徐州221008

出　　处：《徐州建筑职业技术学院学报》2005年第4期21-23,共3页Journal of XUZHOU Institute of Architectural Technology

摘　　要：通过上向流与下向流曝气生物滤池(BAF)的启动与挂膜试验,对比分析了两种流向BAF在挂膜过程中CODcr和NH3-N去除率随时间变化的特点.试验显示,挂膜过程中,CODcr和NH3-N的去除率的提高不是同步的,生物膜增长过程中,好氧异养菌的增殖速度较快,硝化菌的增殖速度较慢.在试验进水CODcr和氨氮条件下,下向流出水的氨氮去除率略高于上向流出水的氨氮值,但上向流曝气生物滤池纳污率较高,反冲洗周期也较长.On the basis of the start-up and film formation test in the upward-flow biological aerated filter （UBAF） and the downward-flow biological aerated filter （DBAF）, a contrastive analysis is made on the varying characteristics of the removal of CODcr and NH3-N with time changing in the process of film formation. The test reveals that the removal of CODcr does not keep in pace with that of NH3-N in the process of film formation, while the increasing rate of the aerobic heterotrophic bacteria is higher than that of the autotrophic nitrobacteria in the process of biological film growth. Under the condition of testing inflow of CODcr and NH3-N, the removal of NH3-N in the downward-flow yielding water is slightly higher than the NH3-N values in the upward-flow yielding water, but the UBAF has a higher filtering capacity and a longer back purge cycle.

关 键 词：曝气生物滤池 上向流 下向流 挂膜特性 对比分析 

分 类 号：X703.1[环境科学与工程—环境工程]