Fifteen years of experience with standardized reference radiometers for controlling low-pressure UV disinfection plants for drinking water

Author:

Schmalwieser A. W.1

Affiliation:

1. Institute of Physiology and Biophysics, University of Veterinary Medicine, Vienna, Austria and UV-Team-Austria, Water Test Centre Wiental, Untertullnerbach, Austria

Abstract

The only practicable way to control the disinfection capability of a UV disinfection plant for drinking water all the time is to use a UV radiometer. According to the Austrian Standard M5873, this plant radiometer is a standardized part of each plant. The standard defines a so-called reference radiometer (RRM) as well. This is necessary because a plant radiometer has to be controlled periodically. A RRM is a hand-held device which has to fulfil high-quality criteria and must be almost insensitive to environmental conditions. In this paper the principles of the concept behind the RRM are explained together with the requirements of such a device. Further on, the test methods are presented as well as a summary of test results from all RRMs developed during the past 15 years. It is shown that the radiation monitoring concept of the Austrian Standard has been successfully practicable and that the international acceptance of the Austrian Standard is justified.

Publisher

IWA Publishing

Subject

Water Science and Technology

Reference18 articles.

1. Biodosimetry: model calculations for UV water disinfection devices with regard to dose distributions;Cabaj;Water Research,1996

2. DVGW (Deutscher Verein des Gas- und Wasserfaches) 2006 DVGW 294-3:2006. UV-Geräte zur Desinfektion in der Wasserversorgung, Teil 3: Messfenster und Sensoren zur radiometrischen Überwachung –Anforderungen, Prüfung und Kalibrierung. DVGW, Bonn, Germany.

3. Kostkowski H. J. 1997 Reliable Spectroradiometry. Spectroradiometric Consulting, La Plata, MA, USA.

4. Practical experiences with UV-disinfection in the Netherlands;Kruithof,1990

5. NWRI (National Water Research Institute) 2012 Ultraviolet Disinfection Guidelines for Drinking Water and Water Reuse. WRI-2012-04, National Water Research Institute, Fountain Valley, CA, USA.

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