Inactivation of coxsackievirus B5 by free chlorine under conditions relevant to drinking water treatment
- Resource Type
- article
- Authors
- Vu Duc Canh; Shotaro Torii; Tippawan Singhopon; Hiroyuki Katayama
- Source
- Journal of Water and Health, Vol 21, Iss 9, Pp 1318-1324 (2023)
- Subject
- chlorine disinfection
coxsackievirus b5
drinking water
water quality
Public aspects of medicine
RA1-1270
- Language
- English
- ISSN
- 1477-8920
1996-7829
Chlorine disinfection is commonly applied to inactivate pathogenic viruses in drinking water treatment plants. However, the role of water quality in chlorine disinfection of viruses has not been investigated thoughtfully. In this study, we investigated the inactivation efficiency of coxsackievirus B5 (CVB5) by free chlorine using actual water samples collected from four full-scale drinking water treatment plants in Japan under strict turbidity management (less than 0.14 NTU) over a 12-month period. It was found that chlorine disinfection of CVB5 might not be affected by water quality. Japanese turbidity management might play an indirect role in controlling the efficiency of chlorine disinfection. HIGHLIGHTS Chlorine disinfection of CVB5 might not be affected by water quality.; Water temperature and pH were more likely to influence the efficiency of chlorination.; Japanese turbidity management might play an indirect role in controlling the efficiency of chlorine disinfection.;