前置回流式UBF/BAF工艺处理科教园区生活污水  

Treatment of Domestic Sewage from Science and Education Town with Pre-backflow UBF/BAF Combined Process

作　　者：姚立荣[1,2] 程寒飞[1] 张文艺[3] 冯植飞 

机构地区：[1]中冶华天工程技术有限公司,安徽马鞍山243005 [2]中冶华天<安徽>节能环保研究院有限公司,安徽马鞍山243005 [3]常州大学环境与安全工程学院,江苏常州213164

出　　处：《中国给水排水》2016年第5期28-31,共4页China Water & Wastewater

基　　金：江苏省自然科学基金资助项目(BE2012640);中冶集团科技计划项目(0032011012)

摘　　要：采用前置回流式UBF/BAF组合工艺处理常州科教城生活污水,考察了对COD、TP、NH_3-N的降解效果和生物量在反应器中的分布情况。结果表明:当温度为14.3~23.8℃,p H值为6.5~8.0,水力负荷为0.05~0.50 m^3/(m^2·h),以及进水COD、NH_3-N、TP和浊度分别为261.25~495.04 mg/L、41.94~59.93 mg/L、3.48~4.76 mg/L和42~95 NTU时,出水COD、氨氮浓度能满足《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,TP能够满足一级B标准。UBF和BAF反应器具有较好截留悬浮物的能力,同时沿水流方向生物膜总量逐级递减。该研究为生活人口较多的园区及地区独立建设污水处理设施提供了工艺和数据支持。The pre-backflow UBF/BAF combined process was used to treat the domestic sewage from Changzhou Science and Education Town, and the degradation effect of COD, NH3 - N and TP as well as the distribution of biomass in the reactors were investigated. The results showed that at temperature of 14.3 to 23.8 ℃, pH of 6.5 to 8.0 and hydraulic loading of 0.05 to 0.50 m3/（ m^2 ·h） , when the infiuent COD, NH3 - N, TP and turbidity were 261.25 to 495.04 mg/L, 41.94 to 59.93 mg/L, 3.48 to 4.76 mg/L and 42 to 95 NTU respectively, the effluent concentrations of COD and NH3 - N could meet the first class A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB 18918 -2002）, and the effluent concentration of TP could meet the first class B criteria specified. UBF and BAF could effectively reject suspended solids. The total biomass of the biofilm was reduced gradually along the direction of flow. The findings can provide reference for the construction of sewage treatment facilities in towns and areas with high population density.

关 键 词：UBF BAF 脱氮除磷 生活污水 科教园区 

分 类 号：X799.3[环境科学与工程—环境工程]