Survival of Poliovirus in Flowing Turbid Seawater Treated with Ultraviolet Light

Autor: Hill, W. F., Hamblet, F. E., Akin, E. W.
Zdroj: Applied Microbiology; May 1967, Vol. 15 Issue: 3 p533-536, 4p
Abstrakt: The effectiveness of a model ultraviolet (UV) radiation unit for treating flowing turbid seawater contaminated with poliovirus was determined. At a turbidity of 70 ppm, the observed survival ratios ranged from 1.9 × 10-3(99.81% reduction) to 1.5 × 10-4(99.98% reduction) at flow rates ranging from 25 to 15 liters/min; no virus was recovered at flow rates of 10 and 5 liters/min. At a turbidity of 240 ppm, the observed survival ratios ranged from 3.2 × 10-2(96.80% reduction) to 2.1 × 10-4(99.98% reduction) at flow rates ranging from 25 to 5 liters/min. As expected, turbidity had an adverse influence on the effectiveness of UV radiation; however, by adjusting the flow rate of the seawater through the treatment unit, adequate disinfection was shown to be predictable.
Databáze: Supplemental Index