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UV disinfection in drinking water supplies
1Wahnbachtalsperrenverband, DVGW-Prüflabor für UV-Anlagen, Postfach 1933, 53709 Siegburg.
Schriftenreihe Des Vereins Fur Wasser-, Boden- Und Lufthygiene
|February 28, 2001
Summary
Ultraviolet (UV) disinfection is now a validated method for water treatment. Standardized testing and monitoring ensure UV systems provide safe drinking water disinfection comparable to chemical methods.
Area of Science:
- Environmental Science
- Microbiology
- Water Treatment Technology
Background:
- Chemical disinfection of drinking water poses risks.
- Ultraviolet (UV) disinfection offers a safer alternative.
- Standardization is needed for reliable UV disinfection validation.
Purpose of the Study:
- To introduce and validate a standardized biodosimetric testing procedure for UV disinfection.
- To establish requirements for testing and monitoring UV systems in accordance with DVGW standard W 294.
- To enable the use of UV systems for drinking water disinfection with high confidence.
Main Methods:
- Implementation of a standardized biodosimetric testing procedure.
- Utilization of standardized UV sensors for monitoring.
- On-line monitoring of UV irradiance.
- Counterchecking with handheld reference sensors.
Main Results:
- The standardized biodosimetric testing procedure was successfully applied.
- Standardized UV sensors enabled reliable monitoring.
- On-line monitoring confirmed system performance.
- UV disinfection was validated as a safe and practical method.
Conclusions:
- UV disinfection is a practical and safely validatable procedure for drinking water.
- Standardized testing and monitoring ensure the efficacy and safety of UV systems.
- UV disinfection offers a reliable alternative to chemical disinfection methods.