一体化A/O工艺中溶解氧对脱氮除碳的影响  

Effect of Dissolved Oxygen on Nitrogen and Carbon Removal in Integrative A/O Process

作　　者：李德豪[1] 凌洪吉[2] 高桂枝[2] 谢文玉[3] 钟华文[3] 

机构地区：[1]华东理工大学,上海200237 [2]南京信息工程大学,南京210044 [3]茂名学院,茂名525000

出　　处：《环境科学与技术》2007年第11期17-19,共3页Environmental Science & Technology

摘　　要：根据好氧-缺氧生物脱氮的工艺原理,设计了一体化A/O反应器,并就DO对其脱碳、脱氮处理效果的影响进行研究。结果表明,在水力停留时间HRT=12h,进水COD为300mg/L左右时,COD的平均去除率为93%。当好氧区DO在5mg/L左右时,脱氮效率最高,TN去除率达到70%。当好氧区DO为3￣4mg/L时,氨氮和总氮的去除可达到动态一致,它们的去除率均在50%～60%之间。Integrative A/O reactor was designed on the principle of anoxic/oxic(A/O) process, and test was made on the effect of dissolved oxygen on carbon and nitrogen removal efficiency of domestic sewage. Result showed that the average removal rate of COD is 93% when HRT is 12h and influent COD concentration is about 300mg/L. Average removal rate of total nitrogen is 70% when the dissolved oxygen in oxic area is about 5mg/L. Removal rate of ammonia nitrogen and total nitrogen is about 50~60% when the dissolved oxygen in oxic area is about 3~4mg/L.

关 键 词：一体化A/O工艺 溶解氧 脱氮 

分 类 号：X703[环境科学与工程—环境工程]