生物转盘高效脱氮的实验研究  

Study on High Denitrification of Rotating Biological Contactor

作　　者：李芳[1] 阚连宝[1] 崔红梅[1] 吕炳南[2] 

机构地区：[1]东北石油大学土木建筑工程学院给水排水工程专业,大庆163318 [2]哈尔滨工业大学市政环境工程学院市政工程系,哈尔滨150090

出　　处：《化学通报》2012年第8期760-764,共5页Chemistry

摘　　要：采用单轴三级生物转盘(RBC),在水力停留时间(HRT)为5、8、12h时,总氮(TN)去除率分别为30.94%、51.52%、58.67%。证明了生物转盘具有同步硝化反硝化的功能。增加硝化液回流系统后,在温度为15℃、回流比为200%时,TN去除率为74.57%。改变转盘的转速及水温,在试验中水温30℃、生物转盘转速10r/min时,转盘对TN的去除率达到最大值为85.35%。实验结果表明,生物转盘在污水脱氮上有较好的应用前景。To adopt a 3-stage rotating biological contactor（ RBC）, the removal rate of total nitrogen （TN） is 30. 94% , 51.52% , 58.67% respectively when the hydraulic retention time （HRT） is 5,8,12h. It is proved that the BRC has the function of simultaneous nitrification and denitrification. After increasing nitrification liquid circulation system, the removal rate of TN achieved to 74.57% at 15℃ and reflux ratio 200%. Changing rotation rate of RBC and water temperature, removal rate of TN achieved to 85.35% at water temperature 30℃ and rotation rate 10r/tin. The results showed that the RBC exhibits a good prospect for removing of nitrogen in wastewater treatment.

关 键 词：同步硝化反硝化 生物转盘 总氮去除率 硝化液回流 

分 类 号：X703[环境科学与工程—环境工程]