Skip to main content

UV-LED Irradiation Technology for Point-of-Use Water Disinfection

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

Point-of-use water treatment has been shown to have a greater impact on public health in developing communities than treating water at the source. Ultraviolet (UV) technology is an appropriate option for water disinfection in many developing community households. It requires a low user input and disinfects at a relatively high flow rate. On the downside, current UV lamps use mercury to generate the UV radiation, may only last for 9-12 months, and are packaged in fragile glass and filament tubes. UV light emitting diodes (LEDs) may provide solutions to many of these sustainability issues. They are small and do not contain glass or mercury, aiding their transport and disposal. Warm-up time is not required for LEDs, saving energy and allowing for intermittent use - important characteristics for systems in less-developed areas.

Bench-scale testing is being performed to characterize the effectiveness of UV-LEDs for pathogen surrogateE. coli. Log inactivation data appear to be in line with typical low-pressure mercury vapor lamps, if not an improvement. Information from these data will be used with mathematical modeling to determine optimal lamp configuration. A prototype is currently being tested to serve as an example of UV-LED technology for point-of-use water disinfection.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Disinfection; E. coli; LED; Point-of-Use; Ultraviolet

Document Type: Research Article

Publication date: 2009-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more