活性污泥厂内的微生物群体表现出种类层面的季节性模式
Miriam Peces1, Giulia Dottorini1, Marta Nierychlo1
1Department of Chemistry and Bioscience, Section of Biotechnology, Center for Microbial Communities, Aalborg University, Aalborg East, 9220, Denmark.
ISME communications
|November 8, 2023
概括
污水处理厂中的微生物群体在物种层面上表现出明显的,可重复的季节性模式. 了解这些动态对于有效的废水处理厂运营和管理至关重要.
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
- 微生物生态学 微生物生态学
背景情况:
- 活性污泥 (AS) 的微生物群落对于废水处理至关重要.
- 已知AS微生物群落的季节性变化,但长期动态仍未得到充分研究.
- 有限的长期研究阻碍了对废水处理厂 (WWTP) 季节性变化的全面了解.
研究的目的:
- 解决在物种层面的微生物季节性动态在全面的WWTPs.
- 研究特定物种的季节性模式及其在多年和植物中的重复性.
- 了解物种生长速度和季节动态之间的关系.
主要方法:
- 长期监测 (35年) 在四个市政WWTP的微生物群落.
- 高频采样 (每7-10天一次).
- 应用一种新的时间序列分析方法来识别特定物种的季节性模式和队列.
主要成果:
- 季节性模式是特定于物种的,即使是在相同的功能性协会或族群内.
- 种类可以被分为可重复的季节性群体,具有不同的年度动态.
- 生长物种主导着春季和秋季,而过渡物种则与冬季和春季有关.
- 过程关键的微生物,包括化剂和聚酸盐积聚生物体,表现出独特的季节性行为.
结论:
- 总体的季节性模式显著影响全尺寸AS植物中的微生物物种组成.
- 许多主导物种在不同的WWTP中显示出一致的季节性模式.
- 经常出现的季节性变化需要在WWTP运行,理解和管理方面加以考虑.
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