下水道微生物组塑造了微生物群落的组成和废水处理厂的动态
Marie Riisgaard-Jensen1, Rodrigo Maia Valença1, Miriam Peces1
1Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark.
The ISME journal
|September 22, 2025
概括
下水道微生物群是污水处理厂活性污泥微生物的关键来源. 了解这种联系对于优化处理厂性能和微生物社区动态至关重要.
科学领域:
- 环境微生物学环境微生物学
- 废水工程 废水工程
- 微生物生态学 微生物生态学
背景情况:
- 人们对下水道和活性污泥微生物组之间的关系知之甚少.
- 来自废水的微生物移民影响了活性污泥社区组装.
研究的目的:
- 为了全面研究下水道微生物群.
- 调查其在为活性污泥提供微生物中的作用.
- 了解其对活性污泥性能的影响.
主要方法:
- 对下水道生物膜,沉积物和废水进行物种级微生物分析.
- 处理厂流入的废水和活性污泥的分析.
- 在活性污泥中追踪细菌来源及其命运.
主要成果:
- 下水道微生物组含有关键细菌,对活性污泥至关重要.
- 在下水道中存在微生物梯度,从肠道转移到生物膜/沉积物细菌.
- 降雨事件显著改变了下水道中的微生物群体组成.
结论:
- 污水系统作为一个重要的环境过步骤.
- 下水道微生物群是活性污泥微生物群落的主要来源.
- 认识到下水道微生物组的作用解释了活性污泥结构的变化.
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