少量有机碳对单级自养脱氮工艺性能的影响  

Effect of a Small Amount of Organic Carbon on CANON Performance

作　　者：刘威 LAOYONGXAY Huexay 代伟[1] 惠肖峰 赵剑强[1] LIU Wei;LAOYONGXAY Huexay;DAI Wei;HUI Xiaofeng;ZHAO Jianqiang(School of WaterandEnvironment,Chang'an University,Xi'an 710064,China;Shaanxi Yanchang Petroleum Yan'an Energy and Chemical Co.Ltd,Fu County 727500,China)

机构地区：[1]长安大学水利与环境学院,陕西西安710064 [2]延长石油延安能源化工公司,陕西富县727500

出　　处：《水处理技术》2020年第4期66-69,92,共5页Technology of Water Treatment

基　　金：国家自然科学基金(51778057)。

摘　　要：采用序批式生物膜反应器(SBBR),经过4个阶段的培养,快速富集好氧氨氧化细菌(AOB)和厌氧氨氧化细菌(AnAOB),并考察不同低碳氮比对工艺脱氮性能的影响。结果表明,NH4^+-N去除率可达到99%以上,TN去除率可达到90%以上。对应C/N=0、1和2时,反应器出水NH4^+-N和TN去除率分别为99.59%、99.5%、98.47%和93.75%、97.22%、98.11%。说明少量COD的存在,可实现同步硝化-厌氧氨氧化-反硝化,且在一定程度上提高脱氮效率。AOB and An AOB were rapidly enriched in a sequencing batch biofilm reactor(SBBR)after four stages of cultivation and investigated various denitrification performances in different low carbon-nitrogen ratios(C/N).The experimental results showed that the ammonia nitrogen(NH4^+-N)and total nitrogen(TN)removal efficiency were about 99%and 90%respectively.Meanwhile,corresponding to C/N=0,1 and 2,removal efficiency of NH4^+-N and TN were 99.59%,99.5%,98.47%and 93.75%,97.22%,98.11%respectively in the reactor effluent.It indicates that the presence of a small amount of COD can influence simultaneous nitrification anammox denitrification and improve nitrogen removal efficiency to a certain extent.

关 键 词：单级自养脱氮 反硝化 碳氮比 脱氮性能 

分 类 号：X703[环境科学与工程—环境工程]