Ultraviolet water treatment is the most widely recognized, proven and commonly used method of disinfection in pure water systems. Utilizing a 254nm wavelength and a dosage of 30,000 microwatt-seconds per squared centimeter is more than enough to destroy most water-borne microorganisms. UV water treatment is also used for TOC reduction, chlorine destruction & ozone destruction, but different UV wavelengths and contact time are required depending on what is the required final water quality.