Microbial Characteristics of the Combined Ozone and Tea Polyphenols or Sodium Hypochlorite Disinfection in the Pipe Network
1
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
2
National Demonstration Center for Experimental Water Environment Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
3
Beijing General Municipal Engineering Design & Research Institute Co., Ltd., Beijing 100082, China
*
Author to whom correspondence should be addressed.
Academic Editor: Helvi Heinonen-Tanski
Water 2021, 13(13), 1835; https://doi.org/10.3390/w13131835
Received: 3 June 2021 / Revised: 28 June 2021 / Accepted: 29 June 2021 / Published: 30 June 2021
(This article belongs to the Section Water Quality and Contamination)
Microbiological safety of water in the pipe network is an important guarantee for safe drinking water. Simulation tests of stainless steel pipe network were carried out using te4a polyphenols and sodium hypochlorite as auxiliary disinfectants for ozone disinfection to analyze the persistent disinfection effects of different combined disinfection methods by measuring the changes in total bacterial colonies in the water. High-throughput sequencing of microorganisms in the pipe network was performed to analyze the differences in the community structure of microorganisms in the water and pipe wall under different disinfection methods. The results showed that the application of auxiliary disinfectants had a relatively long-lasting inhibitory effect on the bacterial colonies in the water, and the diversity of microorganisms in the pipe network varied significantly. As an auxiliary disinfectant for ozone disinfection, tea polyphenols are more powerful than sodium hypochlorite in killing pathogens and chlorine-resistant bacteria, so they are more beneficial to ensure the microbiological safety of water in stainless steel pipe networks.
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Keywords:
drinking water; ozone; tea polyphenols; disinfection; microorganisms; pipe network
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MDPI and ACS Style
Feng, C.; Zhu, N.; Li, Y.; Xu, Z.; Guo, Z. Microbial Characteristics of the Combined Ozone and Tea Polyphenols or Sodium Hypochlorite Disinfection in the Pipe Network. Water 2021, 13, 1835. https://doi.org/10.3390/w13131835
AMA Style
Feng C, Zhu N, Li Y, Xu Z, Guo Z. Microbial Characteristics of the Combined Ozone and Tea Polyphenols or Sodium Hypochlorite Disinfection in the Pipe Network. Water. 2021; 13(13):1835. https://doi.org/10.3390/w13131835
Chicago/Turabian StyleFeng, Cuimin, Na Zhu, Ying Li, Zhen Xu, and Ziyu Guo. 2021. "Microbial Characteristics of the Combined Ozone and Tea Polyphenols or Sodium Hypochlorite Disinfection in the Pipe Network" Water 13, no. 13: 1835. https://doi.org/10.3390/w13131835
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