监测完整的氨氧化剂细菌:从废水中去除的相关参与者
Javier Duque1, Leire Besga-Oyanarte1, Miguel De Celis1
1Unit of Microbiology, Department of Genetics, Physiology and Microbiology, Complutense University of Madrid, Madrid, Spain.
AMB Express
|July 4, 2025
概括
完整的氨氧化剂 (COMAMMOX) 细菌在废水处理厂中大量存在,直接将氨转化为酸盐. 监测这些关键的化细菌对于有效的废水管理至关重要.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理技术 废水处理技术
- 化过程 化过程
背景情况:
- 完整的氨氧化剂 (COMAMMOX) 细菌直接将氨转化为酸盐,这是去除的关键步骤.
- 了解COMAMMOX细菌的丰富和分布对于优化废水处理厂 (WWTP) 至关重要.
- 研究了在低溶解氧和长时间的污泥保留时间下运行的WWTP.
研究的目的:
- 为了监测COMAMMOX细菌和其他循环微生物在一个全面的WWTP生物反应器.
- 用各种分子技术评估COMAMMOX细菌的数量和分布.
- 为了比较WWTP管理的不同监测工具的有效性.
主要方法:
- 在现场光混合化 (FISH) 用于在活性污泥中可视化COMAMMOX细菌.
- 聚合酶链反应 (PCR) 用特定的原料向COMAMMOX细菌和其他化剂的阿莫A基因.
- 数字PCR用于量化COMAMMOX amoA基因相对于其他化细菌 (AOB,AOA,NOB) 的比例.
- 用于微生物多样性分析的基于16S rRNA基因的元分类学.
主要成果:
- 证实了COMAMMOX细菌在WWTP中存在和丰富,在活性污泥中分布.
- 定量PCR证明了COMAMMOX细菌的丰富性,与氨氧化细菌 (AOB) 和酸盐氧化细菌 (NOB) 相似.
- 超分类学分析提供了关于微生物群落整体组成的补充数据.
结论:
- 在研究的WWTP中,COMAMMOX细菌是去除的重要参与者.
- 准确的监测工具对于有效管理WWTP和利用COMAMMOX潜力至关重要.
- 不同的分子技术提供了互补的见解,但具有固有的偏见,必须考虑.
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