Changing natural organic matter quality from anthropogenic activity and stricter requirements for micropollutant removal challenges existing systems for drinking water production. Ozonation of water followed by biofiltration, such as passage through a slow sand filter (SSF), is a partial solution. Biofiltration relies on biofilms (microbial communities within extracellular matrices). However, the effects of ozonation on SSF microbial communities are unknown. In this study, genome-resolved and read-based metagenomics were used to compare the microbial communities of two full-scale SSFs employing conventional pre-treatment to a 20 m2 SSF operated in parallel with ozonation as additional pre-treatment.

中文翻译：

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用于饮用水处理的慢砂过滤器中的微生物群落适应臭氧化改变的有机物


人为活动改变天然有机物的质量，以及对去除微污染物的更严格要求，对现有的饮用水生产系统提出了挑战。水臭氧化后进行生物过滤，例如通过慢砂过滤器 （SSF），是部分解决方案。生物过滤依赖于生物膜（细胞外基质中的微生物群落）。然而，臭氧化对 SSF 微生物群落的影响尚不清楚。在这项研究中，使用基因组分辨和基于读取的宏基因组学来比较采用常规预处理的两个全尺寸 SSF 的微生物群落与与臭氧化平行运行的 20 m2 SSF 作为额外的预处理。