Abstract
The inactivation of enteric adenoviruses 40 and 41 by ultraviolet (UV) radiation was investigated and compared with poliovirus type 1 (strain LSc-2ab) and coliphages MS-2 and PRD-1. Purified stocks of the viruses were exposed to collimated ultraviolet radiation in a stirred reactor for a total dose of up to 140 mW s/cm2. The doses of UV to achieve a 90% inactivation of adenovirus 40, adenovirus 41, coliphages MS-2 and PRD-1 and poliovirus type 1 were 30, 23.6, 14, 8.7 and 4.1 mW s/cm2, respectively. Adenovirus 40 was significantly more resistant than coliphage MS-2 to UV irradiation (P < 0.01). Adenovirus 41 appeared slightly more sensitive than adenovirus 40, but the difference was not significant (P > 0.05). The resistance of PRD-1 was less than MS-2 (P < 0.01), but greater than poliovirus type 1 (P < 0.01). Adenoviruses 40 and 41 were more resistant than Bacillus subtilis spores, often suggested as an indicator of UV light performance. The double-stranded DNA adenoviruses appear to be the most resistant of all potentially water-borne enteric viruses to UV light disinfection.
Original language | English (US) |
---|---|
Pages (from-to) | 2665-2668 |
Number of pages | 4 |
Journal | Water research |
Volume | 30 |
Issue number | 11 |
DOIs | |
State | Published - Nov 1996 |
Keywords
- Coliphage MS-2
- Coliphage PRD-1
- Disinfection
- Enteric adenovirus
- Inactivation
- Poliovirus
- UV irradiation
- Water
ASJC Scopus subject areas
- Water Science and Technology
- Ecological Modeling
- Pollution
- Waste Management and Disposal
- Environmental Engineering
- Civil and Structural Engineering