上向流曝气生物滤池处理城市污水的反硝化性能  

Denitrification performance of up-flow biological aerated filter for municipal wastewater treatment

作　　者：马宝龙[1] 唐锋兵[2] 付民 

机构地区：[1]浙江工业大学建筑工程学院,杭州310014 [2]河北工程大学城市建设学院,河北邯郸056038 [3]邯郸污水处理有限责任公司,河北邯郸056001

出　　处：《工业用水与废水》2011年第6期24-27,共4页Industrial Water & Wastewater

基　　金：河北省科技支撑项目(07276713D)

摘　　要：选用生物陶粒为滤料，考察了水力负荷、回流比、温度对上向流曝气生物滤池（UBAF）反硝化性能的影响。结果表明：UBAF的脱氮效果随着水力负荷的增大而降低，当水力负荷小于2．0m3／（m2·h）时，对NH3-N、TN均能达到较好的去除效果，去除率分别为88．26％和72．22％；回流比对NH3-N去除效果的影响较小，对TN的去除影响较大，控制回流比为150％～200％，出水TN平均质量浓度小于13．8mg／L；温度对TN去除效果的影响较大，当水温在大于20℃时，TN的平均去除率可达78％，出水TN平均质量浓度为10．8mg／L。With biological ceramsite as the filter media, the effects of hydraulic loading, reflux ratio and temperature on the denitrification performance of up-flow biological aerated filter （UBAF） were investigated. The results showed that： the denitrification capability of the UBAF decreased with the increase of hydraulic loading, the removal rates of NH3-N and TN reached 88.26% and 72.22% respectively when the hydraulic loading was lower than 2.0 m3/（m2 .h）; the reflux ratio had little influence on NH3-N removal but great influence on TN removal, when the reflux ratio was controlled at the range of 150% to 200%, the average mass concentration of TN in the effluent water was lower than 13.8 mg/L; the remval rate of TN was greatly affected by temperature, when the water temperature was higher than 20 ℃, the average mass concentration of TN in the effluent water was 10.8 mg/L with the average removal rate of 78%.

关 键 词：上向流曝气生物滤池 城市污水 反硝化 氨氮 总氮 

分 类 号：X703.1[环境科学与工程—环境工程] X799.3