3级生物滴滤池处理生活污水脱氮除磷特性研究  

Removal of Nitrogen and Phosphorus in Sewage Treatment by Three-stage Bio-trickling Filter

作　　者：王康萍[1] 郭新超[1] 张鹏[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《水处理技术》2016年第12期119-123,共5页Technology of Water Treatment

基　　金：国家自然科学基金面上项目(51378413)

摘　　要：为了提高生物滴滤池脱氮除磷能力,采用缺氧-缺氧-好氧(A/A/O)3级串联式生物滴滤池处理校园生活污水;在不同水力负荷、回流比条件下,研究其对NH_4^+-N、TN及TP的去除效果。结果表明:当水力负荷为1.2 m3/(m^2·d)时,TN的去除效果较好(去除率63.02%);去除NH4+-N、TP的优化水力负荷分别为0.8 m3/(m2·d)和0.5 m^3/(m^2·d),对应去除率依次为96.68%和60.33%。适当的回流有利于NH_4^+-N、TN及TP的去除,当回流体积比分别为200%、100%、50%时,平均去除率分别为99.07%、70.38%、66.89%。In order to improve the capability ofbio-trickling filter for nitrogen and phosphorus removal, the study took three-stage serial Anoxia/Anoxia/ Aerobiotie bio-trickling filter device to test the removal ofNH4＋-N, TN and TP under different hydraulic loading and reflux ratio conditions for campus domestic sewage. The results showed that, the hydraulic load of 1.2 m3/（m2·d）, the better removal effect of TN, removal rate were 63.02%. The best hydraulic load removal of NH4＋-N and TP were 0.8 m3/（m2·d） and 0.5 m3/（m·d）. The removal rate was 60.33%. The appropriate reflux can help to remove NH4＋-N, TN and TP, the average removal rates were 99.07%, 70.38% and 66.89% respectively when the optimum reflux volume ratio was 200%, 100% and 50%.

关 键 词：A/A/O串联生物滴滤池 脱氮除磷 水力负荷 回流比 去除率 

分 类 号：X799.3[环境科学与工程—环境工程]