A/O/ASBR同步脱氮除磷实验研究  

Study of Simultaneous Nitrogen and Phosphorus Removal Using Anaerobic/Aerobic/Anoxic Process in SBR

作　　者：谢谦[1] 何争光[1] 丁丹[1] 

机构地区：[1]郑州大学水利与环境学院,河南郑州450001

出　　处：《广州化工》2015年第13期62-65,共4页GuangZhou Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07204-001-02-01)

摘　　要：采用人工配水,通过控制进水p H值为7.5-8.2、DO为0.4-0.7 mg/L、污泥龄9-13天等实验条件,经过两个阶段共46d的驯化培养,在厌氧/好氧/缺氧（A/O/A）SBR反应器内实现短程同步硝化反硝化与除磷过程的耦合。系统稳定运行后,对一个典型周期内水质的变化情况进行了测定和分析,系统对COD、NH＋4-N、TN、TP的去除率分别为94.8%、97.6%、89.4%、93.1%。在此基础上,探讨了不同进水p H、不同曝气量对系统运行稳定性的影响。结果表明：随着p H的改变,系统对去除氮、磷的稳定性呈现不同的变化趋势;而过高的曝气量,会造成系统内的短程硝化向全程硝化转变。By using synthetic domestic sewage as feed and controlling influent p H at 7. 5 - 8. 2,DO at 0. 4 -0. 7 mg / L,SRT at 9 - 13 days and other experimental conditions,A / O / A SBR process was utilized to combine simultaneous shortcut nitrification and denitrification with phosphorus removal during 46 days of two stages. After the system operation had been stable,change of water quality during one typical circle was measured and analyzed,and the removal rates of COD,NH＋4- N,TN and TP by the system could respectively be 94. 8% 、97. 6% 、89. 4% 、93. 1%.Based on this,influences of different influent p H and different aeration rates on stability of system operation were discussed. The result showed that when influent p H was different,changes of nitrogen and phosphate removal by the system present different trends. When aeration rate was too high,the shortcut nitrification changed into full nitrification in the system.

关 键 词：A/O/A SBR 同步脱氮除磷 短程同步硝化反硝化 

分 类 号：X703[环境科学与工程—环境工程]