D. Schoenen et al., INFLUENCE OF GEOMETRICAL PARAMETERS IN DIFFERENT IRRADIATION VESSELS ON UV DISINFECTION RATE, Zentralblatt fur Hygiene und Umweltmedizin, 194(3), 1993, pp. 313-320
Possible differences in the disinfection rate of two irradiation conce
pts, e.g. irradiation in cuvettes and petri dishes, were examined and
quantified on a UV laboratory irradiation plant unit. In addition the
geometrical parameters of the irradiation vessels and mixing of the ba
cterial suspension during UV irradiation were considered. The results
showed differences in disinfection rates of more than 2 log between di
fferent sample areas in the vessels. The mixing caused an improvement
of the disinfection rates in unfavourable irradiation areas of the cuv
ettes and in contrast a deterioration in all irradiation areas in the
petri dishes.