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Characterization of Aquatic Biofilms with Flow Cytometry
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研究饮用水处理中的多个全尺寸慢砂过器微生物群体组成的空间和时间动态
Valentina Attiani1, Hauke Smidt2, Paul W J J van der Wielen1
1Laboratory of Microbiology, Wageningen University & Research, P.O. Box 8033, 6700, EH, Wageningen, the Netherlands; KWR Watercycle Research Institute, P.O. Box 1072, 3430 BB, Nieuwegein, the Netherlands.
Water research
|May 4, 2025
概括
这项研究揭示了缓慢沙 (SSF) 中不同深度的独特微生物群落,这对于可持续的饮用水处理至关重要. 一个核心细菌组驱动着重要的过程,即使在过器清洗后也表现出弹性.
科学领域:
- 环境微生物学环境微生物学
- 水处理技术水处理技术.
- 微生物生态学 微生物生态学
背景情况:
- 缓慢的沙过器 (SSF) 对于通过物理,化学和微生物作用产生安全饮用水至关重要.
- 虽然物理和化学过程得到了充分的研究,但SSF中的微生物动态在很大程度上是未知的.
- 了解这些微生物群落是优化SSF性能和可持续性的关键.
研究的目的:
- 在全尺寸的SSF中研究 prokaryotic社区的空间和时间动态.
- 分析不同深度和Schmutzdecke (SCM) 的微生物群落组成.
- 确定关键的微生物参与者及其在SSF生物过程中的作用.
主要方法:
- 16S核糖体RNA基因向的安普利康序列.
- 用于微生物生物质评估的定量PCR (qPCR).
- 来自荷兰多个饮用水处理厂的SSF的分析.
主要成果:
- Prokaryotic 社区在水平上是均的,但在垂直上是分层的,SCM 生物质和多样性更丰富.
- 通过深度和过器年龄确定了一个核心的 prokaryotic 社区 (Nitrospiraceae,Pirellulaceae,Nitrosomonadaceae,Gemmataceae,Vicinamibacteriaceae).
- 考古物质的丰富性随着深度的增加而增加,SCM在除后逐渐恢复,表明了弹性.
结论:
- 在不同深度的沙子中,不同的微生物群落有助于特定的污染物去除.
- 已确定的核心微生物群落对于SSF中的有机物降解和化至关重要.
- SSF微生物群落具有弹性,这表明,在经过仔细监测的情况下,清洗后的重新启动时间可能会缩短.
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