A comparative study of the inactivation of adenovirus and coxsackievirus with ultraviolet light, chlorine, and ozone

Theresa Vonder Haar, Martin Page, Benito Mariñas, Joanna Shisler, Christophe Boucherie, Véronique Heim, Fabienne David, Anjou Recherche

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

When considering optimization of pathogen control in drinking water treatment plants, it is important for facilities to provide a multi-barrier approach for protection. Due to the formation of regulated disinfection byproducts (DBPs), the use of free chlorine and ozone, two effective and commonly used disinfectants for virus control, is decreasing, and alternative disinfectants which might be less effective in inactivating viruses are being implemented. Ultraviolet (UV) light is being adopted by some utilities to control protozoan (oo)cysts, such as Cryptosporidium parvum, and to reduce the formation of regulated DBPs, such as bromate. However, UV disinfection might not perform effectively against all viruses. Therefore, viruses have emerged as pathogens of potential concern. The inactivation kinetics of many viruses have not been characterized completely, even with common disinfectants. In this study, the inactivation of Coxsackievirus, a single-stranded RNA virus, and Adenovirus, a double-stranded DNA virus, by UV light, free chlorine, and ozone was characterized. Coxsackievirus is highly virulent, with health effects including respiratory illnesses, diarrhea, fever, myocarditis, aseptic meningitis, and miscarriages. Previous studies have indicated that Coxsackievirus is relatively resistant to free chlorine, making the full characterization of its inactivation kinetics an important venture. Because of its resistance to ultraviolet light, Adenovirus has emerged as a contaminant of concern for water treatment plants that utilize UV for control of pathogens. Adenovirus is a water-borne pathogen with health effects including sore throat, respiratory infections, cough, fever, diarrhea, and vomiting. Data from UV, chlorine, and ozone disinfection will be presented. The results from this comprehensive and comparative study will provide useful information for the overall optimization of pathogen control in drinking water treatment facilities. 2010

Original languageEnglish (US)
Title of host publicationWater Quality Technology Conference and Exposition 2010
Pages2926-2935
Number of pages10
StatePublished - Dec 1 2010
EventWater Quality Technology Conference and Exposition 2010 - Savannah, GA, United States
Duration: Nov 14 2010Nov 18 2010

Publication series

NameWater Quality Technology Conference and Exposition 2010

Other

OtherWater Quality Technology Conference and Exposition 2010
CountryUnited States
CitySavannah, GA
Period11/14/1011/18/10

ASJC Scopus subject areas

  • Management, Monitoring, Policy and Law
  • Water Science and Technology

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