Author(s): A. Hatzigiannis; A. Guitonas
Linked Author(s):
Keywords: Disinfection; Dose; Fouling; Intensity; Transmittance; Ultraviolet light (UV)
Abstract: Field experiments conducted with an ultraviolet light (UV) disinfection system as part of a research program studied the effect of UV disinfection on wastewater from secondary clarification for indicator organisms (T. C., E. C.) and the encountered operational problems. While the observed pathogens inactivation varied from 4 to 1 logs according to the applied dose, the field experience revealed significant information for the disinfection procedure. A mathematical model ΗΕΧCALC (Hatzigiannis A., 2000) has been developed to calculate the UV intensity, which was processed with the observed intensity for determination of the fouling effect of effluent on quartz tube. The result is an experimentally determined fouling coefficient, which can be used for optimizing the operation of UV disinfection systems.
Year: 2003