DESIGNATION Ozone is a colorless, slightly blue gas with harsh offensive odor. It has a strong oxidation capacity. Ozone generators included into water treatment facilities allow for removal of organics, oil products and surfactants from water. Ozonization of water flow improves its organoleptic properties (decrease in water color index, elimination of unpleasant odor and bad taste). Water is disinfected thanks to ozone oxidation capacity thus eradicating a majority of pathogenic microorganisms. Iron and manganese compounds may be also removed from water with the help of ozone.