Silver as a Residual Disinfectant To Prevent Biofilm Formation in Water Distribution Systems

Author:

Silvestry-Rodriguez Nadia1,Bright Kelly R.2,Slack Donald C.1,Uhlmann Donald R.3,Gerba Charles P.2

Affiliation:

1. Department of Agricultural and Biosystems Engineering, Room 403, Building 38, The University of Arizona, Tucson, Arizona 85721

2. Department of Soil, Water and Environmental Science, Room 429, Building 38, The University of Arizona, Tucson, Arizona 85721

3. Arizona Materials Laboratory, Department of Materials Science and Engineering, The University of Arizona, 4715 E. Fort Lowell Road, Tucson, Arizona 85712

Abstract

ABSTRACT Biofilms can have deleterious effects on drinking water quality and may harbor pathogens. Experiments were conducted using 100 μg/liter silver to prevent biofilm formation in modified Robbins devices with polyvinyl chloride and stainless steel surfaces. No significant difference was observed on either surface between the silver treatment and the control.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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4. Batté, M., B. M. R. Appenzeller, D. Grandjean, S. Fass, V. Gauthier, F. Jorand, L. Mathieu, M. Boualam, S. Saby, and J. C. Block. 2003. Biofilms in drinking water distributions. Rev. Environ. Sci. Biotechnol.2:147-168.

5. Bezanson, G., S. Burbridge, D. Haldane, and T. Marrie. 1992. In situ colonization of polyvinyl chloride, brass, and copper by Legionella pneumophila. Can. J. Microbiol.38:328-330.

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