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Use of Chlorine Dioxide for Legionella Control in Potable Water Systems

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Water systems in most buildings are colonized with microbes that can be sources of deadly infection. This can be a liability for the building owners and managers. Legionnaires' disease (LD), a preventable bacterial pneumonia, is the subject of strict legislation in western Europe and various focus groups in the United States forecast similar legislative action. Mechanical, physical, and chemical treatments exist to try to eliminate or destroy the Legionella pneumophila bacteria. The most effective of these is chlorine dioxide, but the major problem until now has been the fact that it must be generated on site. A new aqueous chlorine dioxide product eliminates the need for onsite generation, and can be dosed into the water with a simple pump. A site specific program for the application, management, and web-based regulatory reporting obviates the need for customer involvement in what can be a labor intensive and costly regulatory compliance program.
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Keywords: Chlorine dioxide; Legionella pneumophila; Legionellosis; hospitals; potable water; secondary disinfection

Document Type: Research Article

Publication date: 2010-01-01

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