Photoscience UV Sterilizer treatment can be used as the main method of water disinfection, or as an addition to other water purification methods: such as carbon filtration, reverse osmosis or pasteurization. Because UV disinfection does not produce any residue, the best place to install the treatment system is at the end of each treatment unit. This not only destroys the growing microorganisms, but also minimizes the possibility of contamination during processing.