Abstract: Integrated electrolytic and chemical method for producing clean treated water having cyanide species concentration less than 1 mg/liter. (a) Electrolytically treating cyanide-containing water having initial cyanide species concentration less than about 500 mg/liter, via synchronized operation of units: input, electrolytic reactor, recycle, output, and, power supply and process control, forming recycled electrolytically treated cyanide-containing water. (b) Stopping electrolytic treatment when cyanide species concentration decreases to first concentration value of about 10 percent initial concentration, forming recycled electrolytically treated cyanide-containing water of first concentration value inside recycle tank of recycle unit.