Technical Evaluation of a Copper:Silver Ion Swimming Pool Disinfection Unit

by Richard J. Scholze, Jr., US Army Construction Engineering, Research Lab, United States,
Charles P. Gerba, US Army Construction Engineering, Research Lab, United States,
Moyasar T. Yahya, US Army Construction Engineering, Research Lab, United States,
Lee K. Landeen, US Army Construction Engineering, Research Lab, United States,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract: The paper reports on an investigation of a mock swimming pool setup on a laboratory scale. The study used indoor and outdoor simulated swimming pools to compare the efficacy of electrolytically generated copper:silver ions alone and with reduced levels of free chlorine against higher levels of chlorine in reducing numbers of microorganisms. Study results indicated that the addition of electrolytically generated copper:silver ions at the ratio of 400:40 ug/L to simulated swimming pool water allowed the concentration of free chlorine to be reduced while maintaining adequate disinfection for the indoor swimming pools. The outdoor pools showed the best results with the higher level of free chlorine residual, followed by the combination of free chlorine and copper:silver ions.

Subject Headings: Recreational facilities | Chlorine | Comparative studies | Microbes | Disinfection

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