污水系统的生态:不同空间位置的微生物组成,功能,组装和网络
Yiming Yuan1, Guangyi Zhang2, Hongyuan Fang1
1School of Water Conservancy and Transportation, Zhengzhou University. Zhengzhou 450001, China; Yellow River Laboratory, Zhengzhou University. Zhengzhou 450001, China; National Local Joint Engineering Laboratory of Major Infrastructure Testing and Rehabilitation Technology, Zhengzhou 450001, China; Collaborative Innovation Center of Water Conservancy and Transportation Infrastructure Safety, Henan Province, Zhengzhou 450001, China.
Journal of environmental management
|May 10, 2024
概括
微生物诱导的混凝土腐蚀 (MICC) 是一个主要的下水道问题. 这项研究揭示了不同管道位置的不同微生物群落和功能,强调硫循环是社区装配中的关键腐蚀风险和随机性.
科学领域:
- 环境微生物学环境微生物学
- 微生物生态学 微生物生态学
- 土木工程基础设施的建设.
背景情况:
- 微生物诱导的混凝土腐蚀 (MICC) 是全球下水道恶化的主要原因.
- 了解下水道微生物生态对于制定保护政策和无沟技术至关重要.
- 调查的关键方面包括微生物的组成,相互作用,功能和组装过程.
研究的目的:
- 分析在下水道管道内的不同空间位置的微生物群落,功能和组装过程.
- 确定影响微生物社区结构和功能的环境因素.
- 评估微生物对混凝土腐蚀风险的贡献.
主要方法:
- 16S rRNA基因扩增序列测序用于分析来自下水道废水和管道表面 (上部,中部和底部) 的微生物样本.
- 分析了微生物社区的组成,功能潜力 (碳,,硫循环) 和网络相互作用.
- 氧化降解潜力和硫酸盐水平等环境因素与微生物数据相关.
主要成果:
- 管道的底部 (BP) 存在着独特的微生物群落,其中有很高比例的独特物种,并倾向于集群.
- 观察到微生物功能的显著空间变化,特别是碳,和硫循环.
- 在BP中活性微生物硫循环表明MICC的高风险. 随机过程主导着社区集会,BP展现出更复杂的模块化微生物网络.
结论:
- 空间位置显著影响下水道微生物社区的结构,功能和网络复杂性.
- 微生物硫循环是下水道中MICC风险的关键指标.
- 对下水道微生物生态的洞察力可以为基础设施保护和防灾的工程战略提供信息.
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