Impacto económico y calidad microbiológica de aguas tratadas con ozono

Abstract

The objectives of the paper consited of the evaluation of the economic
impact and the water microbiological quality, by applying ozone disinfection.
This technology has been installed in water bottled industry, as well as
in facilities for the breeding of pathogenic germ-free animals located in the
National Center of Laboratory Animal Production and in the Genetic and Biotechnology
Engineering Center facilities, where the laboratory animals remain
during different drugs evaluation. A procedure to estimate the applied ozone
dose and the dissolved ozone concentration at the contact column exit was used.
The use of a single contact stage in the practice was valid. The ozone applied in
the water treatment as in the bottling of water, as in production units of laboratory
animals has a high economic and technical feasibility as compared to other
treatments. Ozone guarantees efficient water disinfection. An appropriate treatment
for the elimination of microbiological contamination for Pseudomonas
aeruginosa in water bottled industry was not found. However, the water ozonization
during the bottling process and sanitizing the plant lines, with a high
dissolved ozone concentration, provides an adequate disinfection. The conventional
thermic water treatment used for the consumption of laboratory animals
is difficult and very expensive, being the annual production cost of the ozone
treatment around seven times cheaper.