TY - GEN
T1 - A comparative study of the inactivation of adenovirus and coxsackievirus with ultraviolet light, chlorine, and ozone
AU - Vonder Haar, Theresa
AU - Page, Martin
AU - Mariñas, Benito
AU - Shisler, Joanna
AU - Boucherie, Christophe
AU - Heim, Véronique
AU - David, Fabienne
AU - Recherche, Anjou
PY - 2010
Y1 - 2010
N2 - 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
AB - 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
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M3 - Conference contribution
AN - SCOPUS:84873508083
SN - 9781617823404
T3 - Water Quality Technology Conference and Exposition 2010
SP - 2926
EP - 2935
BT - Water Quality Technology Conference and Exposition 2010
T2 - Water Quality Technology Conference and Exposition 2010
Y2 - 14 November 2010 through 18 November 2010
ER -