The domestic ozonators are equipments of reduced size that can be used to obtain small volumes of drinking water of high quality. With the use of this ozonators is not necessary to boil water or to consume bottled water. In the Ozone Research Center of Cuba, it was designed, built and evaluated a line of domestic ozonators that allow to give a local solution to the drinking water treatment. The present work deals with the evaluation of the main parameters that characterize the functioning of these equipments. These equipments were evaluated during a period of time that included the control of their operation conditions. For that reason it was selected the following parameters: water pressure, water and gas flows, continuous operation time and gas and liquid ozone concentration as means parameters. Finally microbiological test for water quality demonstration were made.
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