两段BAF处理生活污水中试研究  

Pilot-study on Treatment of Domestic Wastewater by Two-stage BAF

作　　者：武晓刚[1] 史乐君[1] 曹文平[1] 

机构地区：[1]平顶山工学院市政工程系,平顶山467044

出　　处：《科学技术与工程》2008年第13期3563-3566,共4页Science Technology and Engineering

摘　　要：采用两段曝气生物滤池处理生活污水进行了试验研究，探讨了不同的水力停留时间（HRT）对处理效果的影响。结果表明：HRT为1-4h时，进水COD质量浓度98～154．2mg／L的条件下，COD的去除率平均为74．1％，SS的去除率平均为84．5％，NH3-N去除率平均为55．4％，出水COD降至18．6-50．4mg／L，SS降至4．8-14mg／L，NH3-N降至1．7-28．4mg／L；发现NH3-N随着HRT变化较大，COD和TSS变化不显著。同时对第二段生物滤池内生物相特征进行了深入研究，并试验出该系统处理生活污水各段最佳的反冲洗周期。On treatment of domestic wastewater by two-stage aerated biological filter and the effect of pollutants removal on the different hydraulics retention time（HRT） ,the results show that HRT is 4 -10 h, the COD average removal rate is 74.1%, TSS average removal rate is 84.5% and NH3-N average removal rate is 55.4%. The COD,TSS and NH3-N effluent are decreased by 18.6-50.4 mg/L,4.8-14 mg/L and 1.7-28.4 mg/L. Specially NH3-N removal rate is obviously as the HRT is decreased, but the COD and TSS removal rate is non-significant. Moreover, the biological phase in the second biofilter is studied further and obtained some novel theories. The best backwash time is determined of two stages filter too.

关 键 词：生活污水 生物滤池 硝化作用 生物膜法 生物相 反冲洗 

分 类 号：X703.1[环境科学与工程—环境工程]