Research progress on the injury mechanism and detection method of disinfectant-injured Escherichia coli in the drinking water system
Cui-min Feng,
Na Zhu,
Ji-yue Jin,
Ying Li,
Zhen Xu,
Tong Wei,
Rui Yu
Affiliations
Cui-min Feng
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Na Zhu
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Ji-yue Jin
Infrastructure Project Management Branch of Beijing Waterworks Group Co., Ltd, Beijing 100011, China
Ying Li
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Zhen Xu
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Tong Wei
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Rui Yu
Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Sublethally injured bacteria can still develop into normal bacteria under favorable growth conditions, and their pathogenicity poses a great threat to human health. In the drinking water system, some bacteria cause sublethal injury under the action of disinfectants, that is, disinfectant-injured bacteria. Hence, the detection of disinfectant-injured bacteria and the elucidation of injury mechanisms are of great significance for ensuring the microbial safety of drinking water systems. This article takes the indicator bacteria Escherichia coli as the research object, reviews and summarizes the sublethal injury conditions, damage mechanism, and detection methods of disinfectant-injured bacteria in drinking water, and puts forward a prospect for the future research directions of drinking water disinfection and disinfectant-injured bacteria. HIGHLIGHTS Sublethally injured bacteria are formed during the disinfection process.; Introduce the detection methods of disinfectant-injured bacteria.; The injury mechanisms of chlorine- and UV-injured bacteria are described.; It is recommended for an in-depth study of injury mechanisms, minimizing the potential harm of disinfectant-injured bacteria.;
