Ultraviolet (UV) disinfection is commonly used in water treatment across many different applications and is proven and recognized method of disinfection. Since UV disinfection is a nonchemical physical treatment, it does not add any color, taste, or flavor to the water, and does not change the chemistry.
Ultraviolet light at a wavelength of 254 nanometers destroys the DNA of microorganisms leaving them dead and prevents them from growing further. Bacteria, molds, algae, and other microorganisms are inactivated by UV disinfection. At a wavelength of 185 nanometers the UV provides total organic carbon (TOC) destruction.
A small footprint, low operational and maintenance costs, application-specific reactor design, and being environmentally friendly are just some of the advantages of UV disinfection.