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Analysis of Bacterial Diversity in O3-BAC Drinking Water Treatment Process by Using Illumina MiSeq High Throughput Sequencing Technology

GE Yingliang, YU Shuili, SHI Wenxin, YANG Fan, QI Qing   

  1. 1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;
    2. Department of Food Science and Technology, Harbin University, Harbin 150080, China;
    3. Wujiang Huayan Water Service Co. Ltd., Suzhou 215220, China
  • Online:2016-08-25 Published:2016-08-30
  • Contact: YU Shuili

Abstract:

Illumina MiSeq high-throughput sequencing technology was used to study the bacterial diversity and abundance
of the effluent water from each unit process in O3-BAC water treatment. A total of 196 809 16S rDNA sequences were
acquired, which were classified as 522 genera in 38 phyla. The results showed that there was high bacterial community
diversity in the processing unit effluent. Pre-ozonation and ozone oxidation treatment of water influenced most significantly
bacterial diversity and abundance. Ozone could kill some bacteria which were hard to be killed by chlorine disinfection in
a reasonable ozone concentration range. Flocculation and sand filtration could recover the bacterial diversity in water, as
demonstrated number of bacterial species. In biological activated carbon filter treatment, bacterial diversity was increased
and their abundance distribution was more uniform, which would propose higher requirements for later disinfection technics.

 

Key words: MiSeq high-throughput sequencing, ozone-biological activated carbon (O3-BAC), water treatment, bacterial diversity

CLC Number: