The community compositions of three nitrogen removal wastewater treatment plants of different configurations in Victoria, Australia, over a 12-month operational period
The community compositions of three nitrogen removal wastewater treatment plants of different configurations in Victoria, Australia, over a 12-month operational period
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DOI：
10.1007/s00253-020-10901-8
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发表时间：
2020-09
影响因子：
5
通讯作者：
S. Petrovski;Daniel T. F. Rice;Steven Batinovic;Tadashi Nittami;R. Seviour
中科院分区：
文献类型：
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作者：
S. Petrovski;Daniel T. F. Rice;Steven Batinovic;Tadashi Nittami;R. Seviour
AbstractAmplicon sequence fingerprinting of communities in activated sludge systems have provided data revealing the true level of their microbial biodiversity and led to suggestions of which intrinsic and extrinsic parameters might affect the dynamics of community assemblage.大多数研究是在中国和丹麦进行的，有关其他国家植物的信息相对较少。这项研究考察了澳大利亚维多利亚州三个处理生活污水的工厂的社区如何随季节变化。所有这些都旨在通过微生物学方式去除氮。它们都靠近，以最大限度地减少气候和人口统计对其运营的影响，并在 12 个月内每周采集一次样本。 16S rRNA 扩增子测序显示，每个植物群落都与其他植物群落明显不同，并且在 12 个月的采样期内发生了变化。其他类似研究中提出的许多因素对于确定活性污泥系统中的群落组成很重要，但无法解释此处提到的变化。最可能的影响因素被认为是温度和进水成分，反映了每个工厂所服务的人群的饮食摄入量的变化，因为在这三个因素中，最显着的变化对应于季节变化。要点•监测3个脱氮废水处理厂的微生物群落•温度是群落组成动态变化中最有影响的因素。
AbstractAmplicon sequence fingerprinting of communities in activated sludge systems have provided data revealing the true level of their microbial biodiversity and led to suggestions of which intrinsic and extrinsic parameters might affect the dynamics of community assemblage. Most studies have been performed in China and Denmark, and comparatively little information is available for plants in other countries. This study looked at how the communities of three plants in Victoria, Australia, treating domestic sewage changed with season. All were designed to remove nitrogen microbiologically. They were all located close together to minimise any influence that climate and demographics might have on their operation, and samples were taken at weekly intervals for 12 months. 16S rRNA amplicon sequencing revealed that each plant community was distinctively different to the others and changed over the 12-month sampling period. Many of the factors suggested in other similar studies to be important in determining community composition in activated sludge systems could not explain the changes noted here. The most likely influential factors were considered to be temperature and influent composition reflecting changes in dietary intake by the populations served by each plant, since in all three, the most noticeable changes corresponded to seasonal shifts.Key points• Monitoring microbial communities in 3 wastewater treatment plants removing nitrogen• Temperature is the most influential factor in dynamic changes in community composition.