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Occurrence and Succession of Bacterial Community in O 3 /BAC Process of Drinking Water Treatment

Author

Listed:
  • Sheng Dong

    (School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Lijun Liu

    (Shenzhen Water Group, Shenzhen 518060, China)

  • Yuxiu Zhang

    (School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)

  • Fajun Jiang

    (Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China)

Abstract

In the drinking water industry, a common advanced treatment process is comprised of treatment with ozone, followed by biological-activated carbon (O 3 /BAC). However, the bacterial community formation and succession procedures associated with activated carbon have rarely been reported. In this study, the dynamics of bacterial communities at three different depths were investigated using a pilot-scale O 3 /BAC filter. The average chemical oxygen demand (CODMn), turbidity removal and dissolved oxygen (DO) consumption rate of the filter were 26.43%, 16.57% and 16.4% during the operation period, respectively. Bacterial communities dominated by proteobacteria and Bacteroidetes attached on activated carbon were determined by polymerase chain reaction-density gradient gel electrophoresis (PCR-DGGE). Principal component analysis (PCA) revealed that the compositions and structures of bacterial communities in different layers clustered after fluctuation. A redundancy analysis (RDA) indicated that Ramlibacter henchirensis was positively correlated to chemical oxygen demand (COD Mn ) removal and nitrate-N removal, and Georgfuchsia toluolica also showed a positive correlation with COD Mn removal. Aquabacterium parvum and Phaeobacterium nitratireducens were positively-correlated with turbidity removal. Pedobacter glucosidilyticus and Pseudomonas sp. were associated with high dissolved oxygen (DO) consumption. These results provide insight into the succession characteristics of the bacterial community of O 3 /BAC treatment and the interactions of the bacterial community with filter operation performance.

Suggested Citation

  • Sheng Dong & Lijun Liu & Yuxiu Zhang & Fajun Jiang, 2019. "Occurrence and Succession of Bacterial Community in O 3 /BAC Process of Drinking Water Treatment," IJERPH, MDPI, vol. 16(17), pages 1-12, August.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:17:p:3112-:d:261262
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    References listed on IDEAS

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    1. Jian Tian & Jun Lu & Yu Zhang & Jian-Cheng Li & Li-Chen Sun & Zhang-Li Hu, 2014. "Microbial Community Structures and Dynamics in the O 3 /BAC Drinking Water Treatment Process," IJERPH, MDPI, vol. 11(6), pages 1-10, June.
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    Cited by:

    1. Lei Zhang & Yu Cheng & Guang Gao & Jiahu Jiang, 2019. "Spatial-Temporal Variation of Bacterial Communities in Sediments in Lake Chaohu, a Large, Shallow Eutrophic Lake in China," IJERPH, MDPI, vol. 16(20), pages 1-18, October.

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