ELECTROCHEMICAL GENERATION OF OZONE FOR WATER-TREATMENT USING A CELL OPERATING UNDER NATURAL-CONVECTION

Current efficiency, voltage efficiency and power consumption were stud ied for the electrochemical generation of ozone in a two-compartment c ell as a function of current density, anode diaphragm gap width and di stance between the anode lower edge and cell bottom (clearance). The r esults indicated that the current efficiency ranged from 3.9-7.0%, vol tage efficiency from 15-47%, while the power consumption and energy ef ficiency ranged from 270-790 kWh/kg and 0.62-2.14%, respectively. Even though the new technique consumes more energy as compared to the conv entional spark technique, its potential uses as a portable generator f or a safe water disinfectant are unlimited.