Electrochemical-Active Chlorine Generation by Circulating the Electrolyte Through an Electrolytic Cell

Development of electrochemical generation of active chlorine (AC) was studied by circulating the electrolyte through an electrolytic cell. Beside electrolyte concentration and anode current density, circulation time and volume of circulated electrolyte were the main parameters of the process. Optimum electrolyte concentration and anode current density were found to be 40 g/L and 800 A/m(2), respectively. The optimum circulation coefficient, which represents the ratio of circulated electrolyte volume to volume of the electrolytic cell, was in the range 14-18. Results showed that the maximum generation rate and minimum electricity consumption rate were reached after 40 min of circulation time when the optimum parameters were used. Temperature of the circulated electrolyte was monitored, and the effect of temperature change on AC generation was explored. Design of the electrolytic cell facilitates removal of scale that forms on the electrode surfaces by the passing electrolyte.