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.
出处
《化学通报》
CAS
CSCD
北大核心
2012年第8期760-764,共5页
Chemistry
关键词
同步硝化反硝化
生物转盘
总氮去除率
硝化液回流
Simultaneous nitrifications and denitrification
Rotating biological contactor
The removal rate oftotal nitrogen
Nitrification liquid circulation system
