METHODS FOR TREATING INDUSTRIAL WASTEWATER BY ELECTROLYSIS

摘要

The present invention relates to treatment of industrial wastewater, and more particularly wastewater from a fertilizer plant such as a nitrophosphate, organic or organo-mineral fertilizer plant. Chloride ions and other impurities can be removed by electrolysis and to control the pH of the cathode chamber, treated wastewater from the anode chamber is directed to the cathode chamber and new wastewater sent to the anode chamber for the subsequent run of electrolysis. This is an efficient method of controlling the pH of the cathode chamber and preventing white scaling from appearing on the cathode. By efficiently reducing the chloride concentration in the fertilizer wastewater, it is then possible to safely recirculate the wastewater back to the fertilizer plant.