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Ozone Disinfection Of Urban Storm Drain Water |
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| Authors: | Gerald E. Greene Michael K. Stenstrom |
| Affiliation: | 1. Department of Environmental Sciences and Engineering , University of California, at Los Angeles , Los Angeles , CA , 90024-1722 , USA;2. Department of Civil and Environmental Engineering , University of California, at Los Angeles , Los Angeles , CA , 90024-1600 , USA |
| Abstract: | Concerns regarding bacteria in runoff entering Santa Monica Bay were validated by the isolation of human enteric virus in storm drain effluents. As an alternative to chlorination, ozonation was investigated for disinfection of dry-weather urban runoff. Ozone at 10-20 mg/L reduced coliform counts an average of 3.4-logs, with 6-log maximal disinfection. Although varying contaminant concentrations complicate the analyses, total organic carbon predicted ozone demand, and effluent coliform counts were correlated with ozone residuals. |
| Keywords: | Ozone Disinfection Urban Runoff Storm Drain Stormwater Stormwater Runoff Pilot Plant Study Total Coliforms Fecal Coliform Fecal Streptococcus Enterococcus Indicator Bacteria Human Enteric Pathogens Polio Virus Public Health Reclaimed Water |