A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microbial Risk Modeling for Main Breaks
A microbial risk model was developed for main breaks to evaluate the impact of flushing and disinfection as needed to mitigate the potential contamination risk. Of protozoan, virus, and bacterial risks examined, estimated risks from viruses were the highest, suggesting a 7‐log reduction to achieve a 1/10,000 risk target. To accomplish this level of risk reduction, it was necessary to use a flushing velocity of at least 3 ft/s and disinfection with a free chlorine CT (disinfectant concentration multiplied by time) of at least 100 mg × min/L. The risk model also sheds light on alternative risk management options, the impact of specific field conditions, and potential for future model improvements.
Microbial Risk Modeling for Main Breaks
A microbial risk model was developed for main breaks to evaluate the impact of flushing and disinfection as needed to mitigate the potential contamination risk. Of protozoan, virus, and bacterial risks examined, estimated risks from viruses were the highest, suggesting a 7‐log reduction to achieve a 1/10,000 risk target. To accomplish this level of risk reduction, it was necessary to use a flushing velocity of at least 3 ft/s and disinfection with a free chlorine CT (disinfectant concentration multiplied by time) of at least 100 mg × min/L. The risk model also sheds light on alternative risk management options, the impact of specific field conditions, and potential for future model improvements.
Microbial Risk Modeling for Main Breaks
Yang, Jian (author) / Schneider, Orren D. (author) / Jjemba, Patrick K. (author) / Lechevallier, Mark W. (author)
Journal ‐ American Water Works Association ; 107 ; E97-E108
2015-02-01
12 pages
Article (Journal)
Electronic Resource
English
Risk Modeling of Microbial Control Strategies for Main Breaks and Depressurization
| British Library Conference Proceedings | 2012
Effective Microbial Control Strategies for Main Breaks and Depressurization
| British Library Conference Proceedings | 2012
Shutdown Procedure in Main Breaks
| Wiley | 1948
Managing water main breaks : field guide
| TIBKAT | 2012
Water Main Breaks: Preplan for Safety
| British Library Online Contents | 2015