ADVANCED TECHNOLOGIES FOR WASTEWATER TREATMENT BY OZONATION - A REVIEW

Water pollution due to animals, human faeces or sewage systems is one of the most dangerous sources of contamination because they contain many pathogenic microorganisms. Disinfection is a necessary step to destroy or inactivate micro-organisms and prevent the spread of dangerous diseases. The properties of ozone, especially the ability to oxidize, have led to its use in water treatment. Ozone is an "ideal" reagent because it does not introduce, in water or in the atmosphere, reaction products with unfavorable effects. In this paper are presented the most representative studies on the use of ozone in wastewater treatment.