This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Butkus, M. A.
Right arrow Articles by Talbot, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Butkus, M. A.
Right arrow Articles by Talbot, M.
Agricola
Right arrow Articles by Butkus, M. A.
Right arrow Articles by Talbot, M.

 Previous Article  |  Next Article 

Applied and Environmental Microbiology, May 2004, p. 2848-2853, Vol. 70, No. 5
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.5.2848-2853.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

Use of Aqueous Silver To Enhance Inactivation of Coliphage MS-2 by UV Disinfection

Michael A. Butkus,1* Michael P. Labare,2 Jeffrey A. Starke,1 King Moon,1 and Mark Talbot1

Environmental Engineering Program, Department of Geography and Environmental Engineering,1 Department of Chemistry and Life Science, U.S. Military Academy, West Point, New York 109962

Received 26 November 2003/ Accepted 4 February 2004

A synergistic effect between silver and UV radiation has been observed that can appreciably enhance the effectiveness of UV radiation for inactivation of viruses. At a fluence of ca. 40 mJ/cm2, the synergistic effect between silver and UV was observed at silver concentrations as low as 10 µg/liter (P < 0.0615). At the same fluence, an MS-2 inactivation of ca. 3.5 logs (99.97%) was achieved at a silver concentration of 0.1 mg/liter, a significant improvement (P < 0.0001) over the ca. 1.8-log (98.42%) inactivation of MS-2 at ca. 40 mJ/cm2 in the absence of silver. Modified Chick-Watson kinetics were used to model the synergistic effect of silver and UV radiation. For an MS-2 inactivation of 4 logs (99.99%), the coefficient of dilution (n) was determined to be 0.31, which suggests that changes in fluence have a greater influence on inactivation than does a proportionate change in silver concentration.

* Corresponding author. Mailing address: Environmental Engineering Program, Department of Geography and Environmental Engineering, U.S. Military Academy, West Point, NY 10996. Phone: (845) 938-2820. Fax: (845) 938-3339. E-mail: bm8375{at}exmail.usma.edu.

Applied and Environmental Microbiology, May 2004, p. 2848-2853, Vol. 70, No. 5
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.5.2848-2853.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.





Copyright © 2009 by the American Society for Microbiology.   For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»