摘要
以生物膜滤池为厌氧氨氧化反应器,考察了进水中的亚硝酸盐氮浓度对总氮去除率的影响。结果显示,亚硝酸盐氮浓度对总氮去除率的影响较大,总氮去除率和pH值的变化幅度均随NO2--N浓度的增加而增大;但NO2--N浓度升高到一定程度时,若再进一步提高其浓度则对TN的去除率将随之下降,pH值的变化幅度也随之减小,高浓度NO2--N会对厌氧氨氧化反应产生抑制作用。
An ANAMMOX biofilter was employed to investigate the effects of nitrite on the total nitrogen （TN） removal rate. The results show that nitrite nitrogen concentration influences the removal of TN greatly; the rate of TN removal and pH increase with the increase of nitrite nitrogen concentration. To raise nitrite nitrogen concentration furthermore, both the TN removal rate and pH level decrease. This suggests high concentration nitrite nitrogen will inhibit the ANAMMOX process. Moreover, the data indicate that for excellent TN removal effects, the proper nitrite nitrogen concentration shall be 84.4 mg/L.
出处
《中国给水排水》
CAS
CSCD
北大核心
2006年第17期74-76,共3页
China Water & Wastewater
基金
国家高技术研究发展计划(863)项目(2003AA601010)
