Aquacell non-fouling electrolysis treatment system creates strong oxidizing substances called HOCl and OCl- ion by electrolysis without injecting chemicals. It is a system that kills disease-causing microorganisms or purifying contaminants within water, and it is a breakthrough technology that completely solved fouling problem on the surfaces of electrodes, caused by calcium and magnesium ions dissolved in water. Therefore, due to high BOD, NH3, chromaticity removal and sterilization power, Aquacell non-fouling electrolysis treatment system can be used for not only wastewater recirculating aquaculture fish farm, but also, treatments in ballast water and human waste and effluent treatment in ships more effectively.