进水有机负荷和曝气速率对强化脱氮的影响  

Effect of Influent Organic Loading Rates and Aeration Rates on Enhanced Nitrogen Removal

作　　者：潘敏[1] 黄晓鸣[1] 

机构地区：[1]厦门理工学院环境科学与工程学院,福建厦门361024

出　　处：《厦门理工学院学报》2016年第5期102-108,共7页Journal of Xiamen University of Technology

基　　金：福建省自然科学基金计划项目(2016J05140);教育部留学回国人员科研启动基金(教外司留[2015]311号);厦门理工学院对外科技合作交流专项(E201401200);厦门理工学院高层次人才项目(YKJ14037R)

摘　　要：以模拟含氮废水为处理对象,利用间歇曝气序批式生物反应器比较进水有机负荷和曝气速率对短程硝化反硝化强化脱氮的影响.实验结果发现,进水有机负荷由0.35 g/(L·d)增加到1.00 g/(L·d)时,在同一个曝气速率0.6 L/min条件下,COD_(Cr)的去除率由97.67%减小到95.80%,TN的去除率由92.07%减少到85.64%;短程硝化反硝化效率η从38.96%升高到84.59%.在3个阶段中,COD_(Cr)的去除率均随着曝气速率的增加而增加;总氮TN的去除率变化与曝气速率的增加没有明显的关系;η随着曝气速率的增加而减少.η值越高,而TN的去除率越低.In this study, the effects of influent organic loading rates （OLRs） and aeration rates on partial nitrification and denitrification （PND） in IASBR were investigated. Experimental results showed that when the OLRs were increased from 0. 35 g/（ L. d） to 1.00 g/（ L·d）, at the aeration rate of 0. 6 L/min condition, the CODcr removal rates were decreased from 97.67% to 95.80%, and the TN removal rates were reduced from 92.07% to 85.64% ; partial nitrification and denitrifieation rates η were increased from 38.96% to 84. 59%. In the three stages, the CODcr removal rates were increased with the increase of the aeration rates, the TN removal rates c increase of the hanges had no apparent relationship with the aeration rates; however, η decreased with the aeration rate. ηValue was higher, leading to the TN removal rate lower.

关 键 词：曝气 脱氮 进水有机负荷 曝气速率 短程硝化反硝化效率 

分 类 号：X703[环境科学与工程—环境工程]