Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

UV Water Disinfection Systems

836 views

Published on

UV water disinfection systems utilize ultraviolet light to disinfect water. Learn how that process works in the presentation brought to you by the WaterProfessionals®.

Published in: Services
  • Be the first to comment

UV Water Disinfection Systems

  1. 1. Ultraviolet Water Disinfection Systems © 2016 www.WaterProfessionals.com
  2. 2. • Ultraviolet (UV) water disinfection systems utilize light in the 200-300 nanometer range to disinfect water. • Most modern UV water disinfection systems operate at 254 nanometers. UV Water Disinfection © 2016 www.WaterProfessionals.com
  3. 3. How It Works Part I • Exposure to UV light between 200 and 300 nanometers alters the DNA of bacteria and microorganisms. • Bacteria and microorganisms become unable to reproduce or infect other organisms. © 2016 www.WaterProfessionals.com
  4. 4. How It Works Part II • DNA and RNA molecules absorb the UV light and dimers form along DNA strands. • The dimers disrupt the RNA nucleic material, preventing cellular replication. © 2016 www.WaterProfessionals.com
  5. 5. Required Conditions • For ultraviolet water disinfection systems to be effective, water must be “essentially” free of the following: • Turbidity • Silt • Color • Iron • Manganese • Organic Matter • UV water disinfection will not succeed if anything shields the microorganism from exposure to the UV light. © 2016 www.WaterProfessionals.com
  6. 6. Required UV Dosage • UV dosage must be sufficient to inhibit the DNA of the microorganism. © 2016 www.WaterProfessionals.com
  7. 7. Class A Disinfection • The ANSI and NSF require a UV dosage of 38 mWs/cm2 at 254 nanometers for Class A POU and POE disinfection: • 38mWs/cm2 = 38 milliwatt seconds per square centimeter • Class A POU = Point of Use • Class A POE = Point of Entry © 2016 www.WaterProfessionals.com
  8. 8. Equipment Setup • Water flowing through high purity glass tubes is exposed to UV light at 254 nm. • The size of the UV light used is based on flow rate and the required length of exposure for disinfection. © 2016 www.WaterProfessionals.com
  9. 9. Benefits of UV Disinfection • Benefits of disinfecting water with an ultraviolet disinfection system include:  No Byproducts  No Hazardous Chemicals  Environmentally Friendly  Effective Microorganism Control  High Flow Rate Disinfection  No Impact on Chemical Makeup  No Impact on pH Levels  Low Maintenance © 2016 www.WaterProfessionals.com
  10. 10. Custom Ultraviolet Water Disinfection Systems Call: 800-999-4195 Email: info@waterprofessionals.com © 2016 www.WaterProfessionals.com

×