Anti-Biofouling Ozone System for Cooling Water Circuits. II – An Application To Seawater

A new anti-biofouling ozone system which intermittently supplies high-concentration ozone was demonstrated to be effective for preventing marine biofouling in test cooling tubes (titanium, aluminum brass and epoxy-coated PVC) simulating condenser and intake conduit systems of power plants. Injection of ozone of about 5 mg/L for five minutes once each day was enough to keep them clean. Corrosion of titanium and aluminum brass tubes after the three-month test was found tobe negligible.