| 申慧彦.进水COD对Anammox-UASB反应性能的影响[J].安徽建筑大学学报,2023,31(): |
| 进水COD对Anammox-UASB反应性能的影响 |
| Effect of Influent COD on Anammox-UASB Operation Performance |
| 投稿时间：2022-09-23 修订日期：2022-11-21 |
| 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: |
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| 中文摘要: |
| 实验室搭建上流式厌氧污泥床（upflow anaerobic sludge bed，UASB），以葡萄糖为碳源，研究进水COD对厌氧氨氧化（anaerobic ammonium oxidation，Anammox）反应脱氮性能的影响，结合荧光光谱表征反应出水荧光组分的改变。结果表明，进水COD不高于60mg/L时，Anammox反应没有受到影响；COD为80mg/L时，Anammox和反硝化的共同作用，有利于TN的去除；COD≥100mg/L时，TN去除率开始下降，异养反硝化菌成为优势菌，Anammox反应受到抑制，进水COD继续提高将会导致Anammox反应的失败。三维荧光光谱联合平行因子法、荧光区域积分法分析表明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)reaction performance, an upflow anaerobic sludge bed(UASB)was established in the laboratory. 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≤60mg/L. When COD was 80mg/L, the combined action of Anammox and denitrification was conducive to the removal of TN. When COD ≥100mg/L, the TN removal rate began to decline, the heterotrophic denitrifying bacteria became dominant bacteria,and the Anammox reaction was inhibited. Moreover, the further increase in influent COD concentration failed the Anammox reaction. It was demonstrated that when Anammox was running normally, the protein-like substances in the effluent was relatively stable through the analysis by three-dimensional fluorescence spectroscopy combined with the parallel factor analysis and the fluorescence regional integration method. When the Anammox reaction was affected by the high concentration of COD in the influent, the protein-like substances in the effluent increased. |
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