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Applied and Environmental Microbiology, March 2008, p. 1639-1641, Vol. 74, No. 5
0099-2240/08/$08.00+0     doi:10.1128/AEM.02237-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

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

Nadia Silvestry-Rodriguez,1 Kelly R. Bright,2 Donald C. Slack,3 Donald R. Uhlmann,4 and Charles P. Gerba2*

Department of Agricultural and Biosystems Engineering, Room 403, Building 38, The University of Arizona, Tucson, Arizona 85721,1 Department of Soil, Water and Environmental Science, Room 429, Building 38, The University of Arizona, Tucson, Arizona 85721,2 Department of Agricultural and Biosystems Engineering, Room 403, 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 857124

Received 1 October 2007/ Accepted 22 December 2007

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.

* Corresponding author. Mailing address: Department of Soil, Water and Environmental Science, The University of Arizona, Building 38, Room 429 Tucson, AZ 85721. Phone: (520) 621-6906. Fax: (520) 621-6163. E-mail: gerba{at}ag.arizona.edu

{triangledown} Published ahead of print on 11 January 2008.

Applied and Environmental Microbiology, March 2008, p. 1639-1641, Vol. 74, No. 5
0099-2240/08/$08.00+0     doi:10.1128/AEM.02237-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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