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厌氧氨氧化菌在UFBAR中培养及脱氮性能研究

Study on Anammox Cultivation and Nitrogen Removal In Upflow Fixed Bed Anaerobic Reactor

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【作者】 卢峥; 刘煜祺; 李凯琳; 仝允芊; 赵俊廷; 郭雪白; 吴朕君;

【Author】 LU Zheng;LIU Yuqi;LI Kailin;TONG Yunqian;ZHAO Junting;GUO Xuebai;WU Zhenjun;School of Environmental Engineering,Henan University of Technology;Henan Vocational College of Water Conservancy and Environment;Henan Xin′anli Safety Technology Co., Ltd.,Postdoctoral Program;

【通讯作者】 吴朕君;

【机构】 河南工业大学环境工程学院; 河南水利与环境职业学院; 河南鑫安利安全科技股份有限公司博士后科研工作站;

【摘要】 采用两种氮源和无机碳源配制不同的人工模拟废水,在升流式固定床厌氧生物反应器(UFBAR)中对厌氧氨氧化菌进行培养与驯化,分别为试验Ⅰ和试验Ⅱ。通过测定进、出水NH4+-N、NO2--N、NO3--N质量浓度及pH值等,对反应器中厌氧氨氧化菌的培养及其脱氮性能进行了表征。结果表明,试验Ⅰ中反应器脱氮效果较差,基本不符合厌氧氨氧化反应特征;试验Ⅱ反应器运行10 d后,NH4+-N与NO2--N最低去除率分别为95.9%、96.2%,TIN去除率维持在80%以上,RsⅡ(ΔNO2--N/ΔNH4+-N)均值约为1.35,在理论值1.32附近,第145 d测定单位填料脱氮速率为7.22 kg-N/(m3·d),反应器运行稳定,厌氧氨氧化菌活性良好。

【Abstract】 Two nitrogen and inorganic carbon sources were used to formulate different artificial simulated wastewaters,and anammox bacteria were cultured and domesticated in an ascending-flow fixed-bed anaerobic bioreactor(UFBAR) for Experiment Ⅰ and Experiment Ⅱ, respectively. The culture of anammox bacteria in the reactor and their denitrification performance were characterized by measuring the influent and effluent NH4+-N, NO2--N, NO3--N and pH. The results show that the nitrogen removal efficiency of the reactor in experiment I is poor, which does not accord with the anaerobic ammonia oxidation reaction characteristic. After 10 days of operation, The minimum removal rates of NH4+-N and NO2--N were95.9% and 96.2%, respectively, TIN removal rate remained above 80%, the mean RsⅡ(ΔNO2--N/ΔNH4+-N) is about 1.35, near the theoretical value of 1.32. In day 145, the nitrogen removal rate per unit packing was measured and the value was about 7.22 kg-N/(m3·d). Exeperiment results showed the stable reactor operation and high Anammox activity.

【基金】 河南省科技厅自然科学基金项目(青年科学基金项目)(202300410107);河南省科技厅河南省重点研发与推广专项(科技攻关)(212102310070);河南省教育厅自然科学项目(21B610005);河南工业大学高层次人才科研启动基金项目(2019BS038)
  • 【文献出处】 河南科技 ,Henan Science and Technology , 编辑部邮箱 ,2022年16期
  • 【分类号】X703;X172
  • 【下载频次】136
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