Process steps

  1. 1


  2. 2


  3. 3

    Reverse osmosis

  4. 4

    Ultraviolet light

  5. 5

    Water delivery

Ultraviolet light

Play Ultraviolet Lights

Water is exposed to high-intensity ultraviolet (UV) light with hydrogen peroxide (H2O2) to disinfect and to destroy any trace organic compounds that may have passed through the reverse osmosis membranes. Examples of these trace organic compounds are N-Nitrosodimethylamine (NDMA) and 1-4 Dioxane, which have to be removed to the parts-per-trillion level. UV with H2O2 is an effective disinfection/advanced oxidation process that keeps these compounds from reaching drinking water supplies. View a case study on treating trace contaminants and disinfecting with UV.