基质比对厌氧氨氧化生物膜工艺脱氮效能的影响  

Effect of Substrate Ratio on Denitrification Performance of Anammox Biofilm Reactor

作　　者：傅金祥[1] 李业辉 由昆[1] 于鹏飞[1] 张黎 FU Jinxiang;LI Yehui;YOU Kun;YU Pengfei;ZHANG Li(School of Municipal and Environmental Engineering,Shenyang Jiaunzhu Universily,Shenyagn 110168,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《水处理技术》2020年第5期106-110,共5页Technology of Water Treatment

基　　金：国家重大专项“基于控制单元辽河流域水污染物总量监控体系构建研究”(2012ZX07505-003-02);辽宁省科技厅博士启动项目“城市污水亚硝化-厌氧氨氧化组合工艺脱氮及机理研究”(20171520088)。

摘　　要：首先采用厌氧氨氧化生物膜反应器建立稳定的厌氧氨氧化处理系统,控制温度为(32±2)℃,pH为(7.2±0.2)。通过控制进水基质比(NO2^--N/NH4^+-N)分别为1:1、1:1.1、1:1.2、1:1.32和1:1.4来研究基质比对厌氧氨氧化生物膜工艺脱氮效能的影响,在基质比1:1.20时,生物膜反应器的脱氮效果最好,进水NH4^+-N为150 mg/L,HRT为12 h,其出水的平均NH4^+-N和NO2--N在质量浓度分别为6 mg/L和3.5 mg/L,NH4^+-N和NO2^--N的平均去除率分别为96%、98%,此时的脱氮性能最好且稳定,其发生反应的NO2^--N/NH4^+-N最接近厌氧氨氧化反应式中的1.32。A stable anammox system was established by using an anammox biofilm reactor.The control temperature was 32±2℃,and the pH was(7.2±0.2).The effects of substrate ratio(NO2^--N/NH4^+-N)on the denitrification efficiency of anammox biofilm process were studied by controlling the substrate ratio of influent(NO2^--N/NH4^+-N)to be 1:1,1:1.1,1:1.2,1:1.32 and 1:1.4,respectively.When the substrate ratio was 1:1.20,the denitrification effect of biofilm reactor was the best.When the influent NH4^+-N was 150 mg/L and HRT was 12 h,the average NH4^+-N and NO2^--N of effluent were 6 mg/L and 3.5 mg/L,respectively.The average removal rate of NH4^+-N and NO2^--N was 96%and 98%respectively.At this time,the denitrification performance was the best and stable,and the reaction of NO2^--N/NH4^+-N was closest to 1.32 in the anammox reaction formula.

关 键 词：厌氧氨氧化 生物膜 脱氮性能 基质比 

分 类 号：TQ028.8[化学工程]