Why are Both 185nm and 254nm Wavelengths used in Water Treatment?
UV radiation at 185nm produces ozone, which is active oxygen. Ozone is one of the most effective natural bactericides and can kill almost every form of virus. Radiation at 254nm is an effective sanitizer, even oxidizing body oil, urine, perspiration, fecal matter, and cosmetics. It can prevent and destroy chloramines by breaking down the N-CL bonds and by forming oxidizing hydroxyl radicals. At the 254nm wavelength, UVC is absorbed by the organism’s DNA, eliminating its ability to reproduce.