摘要
开发了一种基于分段进水的多级缺氧/好氧曝气生物滤池(SMAOBAF)新工艺,并将其用于处理模拟生活污水,考察了进水流量分配比对系统除碳脱氮效能的影响。结果表明,不同进水流量分配比对COD和氨氮的去除影响较小,但对缺氧反硝化及好氧同步硝化反硝化(SND)影响显著。当进水流量分配比为2∶5∶3时,对TN的去除率最高(70. 8%),其中第2段的SND和缺氧反硝化对TN的去除贡献最大。合理分配各段进水量有助于碳源和溶解氧的有效利用,充分发挥硝化/反硝化的最佳效能。
A novel process of step-feed multistage anoxic/aerobic biological aerated filter( SMAOBAF) was developed and applied to treat synthetic domestic wastewater,and the effect of influent flow distribution ratio on carbon and nitrogen removal efficiency was investigated. The results indicated that different influent flow distribution ratios had less influence on the removal efficiency of COD and NH4+-N,but they significantly affected the anoxic denitrification and aerobic simultaneous nitrification and denitrification( SND) efficiency. When the influent flow distribution ratio was 2:5:3,the maximum TN removal efficiency of 70. 8% was achieved,and most TN was removed by SND and anoxic denitrification in the second stage. Proper distribution of influent flow was beneficial for effective utilization of carbon resource and dissolved oxygen( DO), making full use of nitrification and denitrification capacities of the process.
作者
孙海龙
周鑫
张琦
张鑫爱
SUN Hai-long;ZHOU Xin;ZHANG Qi;ZHANG Xin-ai(College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024,China;Innovation Center for Postgraduate Education in Municipal Engineering of Shanxi Province,Taiyuan 030024 , China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2019年第3期121-124,129,共5页
China Water & Wastewater
基金
国家自然科学基金资助项目(21607111)
山西省研究生联合培养基地人才项目(2016JD16)
关键词
多级缺氧/好氧曝气生物滤池工艺
分段进水
进水流量分配比
生物脱氮
同步硝化反硝化
multistage anoxic/aerobic biological aerated filter process
step-feed
influent flow distribution ratio
biological nitrogen removal
simultaneous nitrification and denitrification
