German Wasserwerke Westfalen chooses Siemens ultraviolet technology for environmentally compatible disinfection of drinking water

Posted: Friday 20th August 2010

Five Siemens ultraviolet (UV) disinfection plants came into operation in May in the Echthausen Water Works belonging to Wasserwerke WestfalenGmbH,Germany. They have considerably reduced the amount of chemicals used by the drinking water supplier. This process also eliminates microorganisms which cannot always be adequately controlled by other disinfection processes. These new UV plants are part of Wasserwerke Westfalen's extensive investment project to further improve the quality of its drinking water.

Echthausen Water Works supplies 20 communities with some 20 million cubic meters of drinking water. Wasserwerke Westfalen GmbH is a subsidiary company of both Dortmunder Energie- und Wasserversorgung GmbH and Gelsenwasser AG, and is the largest producer of drinking water in the German state of North Rhine-Westphalia. Ingo Becker, managing director of Wasserwerke Westfalen GmbH, said that all water works would need to install additional treatment stages in the next few years in order to meet future drinking water quality requirements, and that most of these stages would involve physical processes. This would involve an investment of approximately 20 million Euros at each location.

Five Barrier M 3800 type UV plants have been installed in Echthausen. They have replaced the previous chlorine dioxide stage, and complete the water treatment. Rob van Esch, the Siemens project manager, explained, “UV plants are often more effective than other disinfection processes, particularly against spore forming microorganisms which can encapsulate.” In addition to that, the taste of the drinking water remains unchanged, and the operational handling of chemicals is eliminated.




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