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FEASIBILITY STUDY OF USING COMPLEX OF HYDROGEN PEROXIDE AND SILVER FOR DISINFECTING SWIMMING POOL WATER AND ITS ENVIRONMENT

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Author(s): R. Nabizadeh ، N. Samadi ، Z. Sadeghpour ، M. Beikzadeh

Journal: Iranian Journal of Environmental Health Science & Engineering
ISSN 1735-1979

Volume: 5;
Issue: 4;
Start page: 235;
Date: 2008;
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Keywords: Disinfection ، swimming pool ، hydrogen peroxide ، silver

ABSTRACT
In this research the application of Nanosil containing hydrogen peroxide and silver was studied in disinfecting swimming pool water and it's Environment. The effect of the disinfectant on Candida albicans (ATCC No. 10231), Aspergillus niger (ATCCNo. 16404), Pseudomonas aeruginosa (ATCC No. 9027), Serratia marcescens (PTCC No. 1111), Klebsiella pneumoniae (ATCC No. 10031) and Staphylococcus aureus (ATCC No. 29737) ) was evaluated. The main objective of this experiment was to determine the effective dose of Nanosil which could be used for disinfecting the environment of swimming pools and other surface area. Then, the effectiveness of Nanosil was studied in two private and one public swimming pools. Heterotrophic plate count, thermotolerant coliforms, Pseudomonas aeruginosa and Staphylococcus aureus were monitored as the target microorganisms in disinfection practice According to the result of this study, it is recommended to apply the Nanosil with the concentration of ≥3% (30000 mg/L) for contact time of 30 min or more for practical disinfection in swimming pools environment. The application of Nanosil in real conditions of two private and one public swimming pools indicated that the acceptable microbial quality is also achievable if the disinfectant residual concentration would be as high as 20 mg/L in swimming pool water.
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