Determination of Ct values for chlorine of resistant enteroviruses
- 30 January 2009
- journal article
- research article
- Published by Informa UK Limited in Journal of Environmental Science and Health, Part A
- Vol. 44 (4), 336-339
- https://doi.org/10.1080/10934520802659653
Abstract
Information on the required chlorine dose or Ct value (concentration of free chlorine multiplied by contact time) is limited to only a few enteroviruses. In this study the Ct values of some of the reported more chlorine resistant enteroviruses were determined. The Efficiency Hom Model was used to predict the times for 2, 3. and 4 –log inactivation of echovirus 1 and 12, coxsackievirus B5 and poliovirus type 1 at pH 7.5 and 9 at 5°C. Coxsackievirus B5 was the most resistant to chlorine with a Ct requirement of 11.5 mg× min/L at pH 7.5 at 5°C compared to polio with a Ct of 5.3 mg× min/L under the same conditions. All the viruses were more resistant than polio 1 at pH 9.0.Keywords
This publication has 5 references indexed in Scilit:
- Chlorine Inactivation of Adenovirus Type 40 and Feline CalicivirusApplied and Environmental Microbiology, 2003
- Drinking Water Regulation and HealthPublished by Wiley ,2003
- Comparative Inactivation of Enteroviruses and Adenovirus 2 by UV LightApplied and Environmental Microbiology, 2002
- Modeling Water Treatment Chemical Disinfection KineticsJournal of Environmental Engineering, 1998
- Inactivation of Health-Related Microorganisms in Water by Disinfection ProcessesWater Science & Technology, 1989