摘要
本试验主要考察间歇反应器缺氧阶段硝酸盐氮负荷NNO-x-N(KgNO-x-N/KgMLSSd)对脱氮效率的影响。试验结果表明:在一定水温和BOD5/NOx-N下,NNOx-N负荷对脱氮效率有显著影响。在反应器中采用高浓度污泥是降低NNOx-N的有效途径,有利于反应器脱氮速率VDN(mg/l·min)的提高。此外,通过正交试验得出了在BOD5/NO-x一定时,NNO-x-N。
The influence of nitrate nitrogen loading on denitrification was studied during anoxic process in intermittent aeration system The test results show that the influence is remarkable The nitrate nitrogen loading N NO - x-N (KgNO - x-N/KgMLSS·d) is down as high MLSS is adopted in the reactor In addition,The quantitative relation among the N NO - x-N ,T℃ and η NO - x-N % is obtained by the regression analysis
出处
《四川环境》
1998年第3期1-5,共5页
Sichuan Environment
关键词
硝酸盐氮负荷
脱氮
废水处理
间歇曝气系统
Nitrate nitrogen loading,denitrification,regressive orthogonal method