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首页> 外文期刊>Environmental Science & Technology >Profile and Fate of Bacterial Pathogens in Sewage Treatment Plants Revealed by High-Throughput Metagenomic Approach
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Profile and Fate of Bacterial Pathogens in Sewage Treatment Plants Revealed by High-Throughput Metagenomic Approach

机译：高通量基因组学方法揭示污水处理厂中细菌病原体的概况和命运

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摘要

The broad-spectrum profile of bacterial pathogens and their fate in sewage treatment plants (STPs) were investigated using high-throughput sequencing based metagenomic approach. This novel approach could provide a united platform to standardize bacterial pathogen detection and realize direct comparison among different samples. Totally, 113 bacterial pathogen speqes were detected in eight samples including influent, effluent, activated sludge (AS), biofilm, and anaerobic digestion sludge with the abundances ranging from 0.000095% to 4.89%. Among these 113 bacterial pathogens, 79 species were reported in STPs for the first time. Specially, compared to AS in bulk mixed liquor, more pathogen species and higher total abundance were detected in upper foaming layer of AS. This suggests that the foaming layer of AS might impose more threat to onsite workers and citizens in the surrounding areas of STPs because pathogens in foaming layer are easily transferred into air and cause possible infections. The high removal efficiency (98.0%) of total bacterial pathogens suggests that AS treatment process is effective to remove most bacterial pathogens. Remarkable similarities of bacterial pathogen compositions between influent and human gut indicated that bacterial pathogen profiles in influents could well reflect the average bacterial pathogen communities of urban resident guts within the STP catchment area.
机译：使用基于高通量测序的宏基因组学方法研究了污水处理厂（STP）中细菌病原体及其命运的广谱分布。这种新颖的方法可以提供一个统一的平台，以标准化细菌病原体检测并实现不同样品之间的直接比较。总共在8个样品中检测到113种细菌性病原体，包括进水，出水，活性污泥（AS），生物膜和厌氧消化污泥，其丰度范围为0.000095％至4.89％。在这113种细菌病原体中，首次在STP中报告了79种。特别地，与散装混合液中的AS相比，在AS的上泡沫层中检测到更多的病原体种类和更高的总丰度。这表明，AS的泡沫层可能会对STP周围区域的现场工作人员和居民构成更大的威胁，因为泡沫层中的病原体很容易转移到空气中并可能引起感染。总细菌病原体的高去除效率（98.0％）表明，AS处理工艺可以有效去除大多数细菌病原体。进水口和人类肠道中细菌病原体组成的显着相似性表明，进水口中的细菌病原体谱可以很好地反映STP集水区内城市居民肠道的平均细菌病原体群落。

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  • 来源
    《Environmental Science & Technology》 |2015年第17期|10492-10502|共11页
  • 作者

    Bing Li; Feng Ju; Lin Cai; Tong Zhang;

  • 作者单位

    Key Laboratory of Microorganism Application and Risk Control of Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China;

    Environmental Biotechnology Lab, The University of Hong Kong, Hong Kong SAR, China;

    Environmental Biotechnology Lab, The University of Hong Kong, Hong Kong SAR, China;

    Environmental Biotechnology Lab, The University of Hong Kong, Hong Kong SAR, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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