改良 AAOAO 工艺生物池微生物固定化填料脱氮特性研究

摘要：

在改良AAOAO工艺污水处理厂生物池各区域通过挂膜法固定微生物，结合生物池沿程水质分布，对挂膜后填料脱氮性能及微生物群落结构进行研究。结果表明，厌氧区对于NH-N去除的贡献率达到整个系统的18. 66%。好氧区积累的NO2--N质量浓度最高达到0.15mg/L，通过内回流进入厌氧区，为厌氧氨氧化现象产生提供了必要条件。好氧区第二廊道挂膜填料的比硝化速率和比反硝化速率均为沿程最高，分别达到0.71、0.51mg/(g ·d)。在此区域精准投加填料，将会对改良AAOAO生物池脱氮性能有极 大提升。能够降解污水中多种复杂有机物的细菌属Bacteroidetes_vadinHA17在填料样本中大量聚集(19.40%)，为反硝化过程提供了更多可利用的碳源。为强化现有改良AAOAO工艺的处理效果提供理论支持和技术参考。

Microorganisms were immobilized in various areas of the biological tank of the improved AAOAO process wastewater treatment plant through the film-laying method, Combined with the water quality distribution along the biological tank, the nitrogen removal performance and microbial community structure of carriers after film-laying were studied. The results showed that the contribution of the anaerobic zone to Nll4＋-N removal reached 18,66% of the entire system, The highest concentration of NO2-,-N accumulated in the aerobic zone reached 0.15 mg/L. and entered the anaerobic zone through internal reflux, which provided a necessafy condition for the occurrence of anaerobic ammoxidation, The specific nitrification rate and specific denitrification rate of the carriers in the second corridor of the aerobic zone were the highest, reaching 0.71 and 0,51 mg(g. d), respectively, The precise addition of carriers in this area will greatly improve the nitrogen removal performance of the improved AAOAO biological tank, Bacteria that can degrade a variety of complex organic compounds in sewage belong to Bacteroidetes _vadin HA17. lt accumulated in a large number of carrier samples(19.40%), providing more available carbon sources for denitrification, This study provides theoretical support and technical reference for enhancing the treatment elfect of the existing imprved AAOAO process.

作者：

杨森，牛咏晴，刘冰岩，张薛龙，王金辉，谷济宇，彭赵旭

Yang Sen,Niu Yongqing,Liu Bingyan,Zhang Xuelong,Wang Jinhui,Gu Jiyu,Peng Zhaoxu

机构地区：

北京恩菲环保股份有限公司；郑州大学水利与交通学院；温县中投水务有限公司

引用本文：

杨森，牛咏晴，刘冰岩等。改良AAOAO工艺生物池微生物固定化填料脱氮特性研究[J] . 学报(自然科学版) ,2025,53(2) :139-147. (Yang Sen,Niu Yongqing,Liu Bingyan,et al.Study on the nitrogen remov- al performance of microbial immobilized carrier in the improved AAOAO process biological tank[J] .Journal of Henan Normal University( Natural Science Edition) , 2025, 53(2) : 139-147. DOI: 10. 16366/j. cnki. 1000-2367.   2024. 03. 18. 0002. )

基金：

国家自然科学基金；河南省教育厅科学技术研究重点项目

关键词：

污水处理厂；填料；脱氮性能；微生物群落

wastewater treatment plant; carrier; nitrogen removal performance; microbial community

分类号：

X703

改良 AAOAO 工艺生物池微生物固定化填料脱氮特性研究.pdf