摘要
为研究进水COD对厌氧氨氧化(Anaerobic ammonium oxidation,Anammox)反应性能的影响,搭建上流式厌氧污泥床(upflow anaerobic sludge bed,UASB),以葡萄糖为碳源,结合荧光光谱表征反应器出水组分的改变。结果表明,进水COD≤60 mg/L时,Anammox反应没有受到影响;COD=80 mg/L时,Anammox和反硝化共同作用,有利于去除TN;COD≥100 mg/L时,TN去除率开始下降,异养反硝化菌为优势菌,Anammox反应受到抑制;进水COD继续提高,将导致Anammox反应失败。三维荧光光谱联合平行因子、荧光区域积分分析表明,Anammox正常运行时,出水类蛋白物质相对稳定;Anammox反应受到进水高浓度COD影响时,出水类蛋白物质增加。
To study the influence of chemical oxygen demand(COD)on anaerobic ammonium oxidation(Anammox)reaction performance,an upflow anaerobic sludge bed(UASB)was established.Using glucose as carbon source,the change of fluorescence components in the effluent was characterized by fluorescence spectroscopy.The results showed that the Anammox reaction was not inhibited when influent COD≤60 mg/L.When COD was 80 mg/L,the combined action of Anammox reaction and denitrification was conducive to the removal of TN.When COD≥100 mg/L,the TN removal rate began to decline,while the heterotrophic denitrifying bacteria became dominant,and the Anammox reaction was inhibited.Moreover,the further increase in influent COD concentration failed the Anammox reaction.The analysis based on the three-dimensional fluorescence spectroscopy,the parallel factor analysis and the fluorescence regional integration method showed that when Anammox was running normally,the protein-like substances in the effluent was relatively stable;when the Anammox reaction was affected by the high concentration of COD in the influent,the proteinlike substances in the effluent increased.
作者
申慧彦
张宇
姚亮
余丽
李卫华
SHEN Huiyan;ZHANG Yu;YAO Liang;YU Li;LI Weihua(School of Environment and Energy Engineering,Anhui Jianzhu University,Hefei 230601,China;Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse,Hefei 230601,China)
出处
《安徽建筑大学学报》
2023年第4期57-63,共7页
Journal of Anhui Jianzhu University
基金
国家自然科学基金项目(51978003)
安徽省高校省级自然科学研究重点项目(KJ2020A0467)
安徽省自然科学研究项目(2108085ME186)
安徽建筑大学引进人才及博士启动基金项目(2019QDZ10)。
关键词
COD
厌氧氨氧化
脱氮性能
三维荧光光谱
chemical oxygen demand
anaerobic ammonia oxidation(Anammox)
nitrogen removal performance
three-dimensional fluorescence spectroscopy
