Evaluation of Antimicrobial Coatings for Cloth Media Filtration: Case Study
Publication: Journal of Environmental Engineering
Volume 133, Issue 1
Abstract
The results of an investigation of the effect of antimicrobial coatings on inactivating microbes on and within the media used in cloth media disk filtration systems are presented herein. Four filter fabrics were evaluated using a modified form of the American Association of Textile Chemists and Colorists Test Method 100 in 1996. The fabrics had been treated with two antimicrobial agents by two coating vendors. Treated fabrics were subjected to backwash cycles to examine whether the antimicrobial properties were retained during normal filter operation. Initially, the fabrics treated with Zoonocide exhibited significant microbial reduction whereas fabrics treated with AlphaSan exhibited little microbial reduction. Once the fabrics treated with Zoonocide were subjected to a backwash cycle, the biocidal properties of the fabrics were depleted. Lack of durability of the coating was either because it washed off easily or the antimicrobial properties were chemically depleted, rendering the treatment ineffective.
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References
Abbaszadegan, M., Ouwens, R., Monterio, P., and Alum, A. (2004). “Evaluation of propriety treated zeolite in point of use devices for removal and inactivation of microorganism.” Arizona State Univ., http://www.northerngravel.com/files/ASUzeobestultra.pdf (May 6, 2005).
American Association of Textile Chemists and Colorists (AATCC). (1996). AATCC technical manual, Vol. 71, New York.
American Public Health Association (APHA). (1998). Standard methods for the examination of water and wastewater, 20th Ed., Washington, D.C.
Baker, J. S., and Dudley, L. Y. (1998). “Biofouling in membrane systems—A review.” Desalination, 118(1–3), 81–89.
Huang, L. K., and Sun, G. (2003). “Durable and oxygen bleach rechargeable antimicrobial cellulose: Sodium perborate as an activating and recharging agent.” Ind. Eng. Chem. Res., 42(22), 5417–5422.
Sun, G. (2001). “Durable and regenerable antimicrobial textiles.” Bioactive fibers and Polymers, J. V. Edwards, and T. L. Vigo, eds., Oxford University Press, Washington, D.C.
Sun, G., and Xu, X. J. (1998). “Durable and regenerable antibacterial finishing of fabrics: Biocidal properties.” Textile Chemist and Colorist, 30(6), 26–30.
Sun, G., Xu, X. J., Bickett, J. R., and Williams, J. F. (2001). “Durable and regenerable antibacterial finishing of fabrics with a new hydantoin derivative.” Ind. Eng. Chem. Res., 40(4), 1016–1021.
Toombs, R. W., and Connor, D. A. (1980). “Proficiency test sample media for single and mixed pure cultures of water-pollution indicator bacteria.” Appl. Environ. Microbiol., 40(5), 883–887.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 133 • Issue 1 • January 2007
Pages: 117 - 120
Copyright
© 2007 ASCE.
History
Received: Jun 7, 2005
Accepted: Jul 21, 2006
Published online: Jan 1, 2007
Published in print: Jan 2007
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