申慧彦,张宇,姚亮,余丽,李卫华.进水 COD 对 Anammox-UASB 反应性能的影响[J].安徽建筑大学学报,2023,31(4):57-63 |
进水 COD 对 Anammox-UASB 反应性能的影响 |
Effect of Influent COD on Anammox-UASB Operation Performance |
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DOI: |
中文关键词: COD 厌氧氨氧化 脱氮性能 三维荧光光谱 |
英文关键词: chemical oxygen demand anaerobic ammonia oxidation (Anammox) nitrogen removal performance three-dimensional fluorescence spectroscopy |
基金项目: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) |
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中文摘要: |
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。 |
英文摘要: |
To study the influence of chemical oxygen demand (COD) on anaerobic ammonium oxidation (Anammox) reactionperformance,an upflow anaerobic sludge bed (UASB) was established. Using glucose as carbon source,the change of fluorescencecomponents in the effluent was characterized by fluorescence spectroscopy. The results showed that the Anammox reaction was notinhibited when influent COD ≤ 60 mg/L. When COD was 80 mg/L,the combined action of Anammox reaction and denitrification wasconducive to the removal of TN. When COD ≥ 100 mg/L,the TN removal rate began to decline,while the heterotrophic denitrifyingbacteria became dominant,and the Anammox reaction was inhibited. Moreover,the further increase in influent COD concentrationfailed the Anammox reaction. The analysis based on the three-dimensional fluorescence spectroscopy,the parallel factor analysis andthe fluorescence regional integration method showed that when Anammox was running normally,the protein-like substances in theeffluent 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. |
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