Inactivation of Bacterial Viruses in Water Using Deep Ultraviolet Semiconductor Light-Emitting Diode
Publication: Journal of Environmental Engineering
Volume 137, Issue 12
Abstract
Disinfection of bacterial viruses MS2, , and in water was successfully carried out using deep ultraviolet light-emitting diodes (DUV-LEDs) operated at 280 nm and 255 nm. It was shown that the 280-nm DUV-LEDs are much more suitable than the 255-nm DUV-LEDs for the disinfection of water because, even though the disinfection efficiency of the former DUV-LEDs is only half that of the latter ones, the production of high-power 280-nm DUV-LEDs is much easier than that of the 255-nm ones because the external quantum efficiency of the 280-nm DUV-LEDs is more than ten times that of the 255-nm DUV-LEDs. We propose the use of vertical emitting DUV-LEDs for the design of an efficient DUV-LED disinfection chamber. This disinfection technique using DUV-LEDs will open new avenues for water purification.
Get full access to this article
View all available purchase options and get full access to this article.
References
Adams, M. H. (1959). Bacteriophages, Interscience Publishers Inc., New York.
Bohrerova, Z., and Linden, K. G. (2006). “Assessment of DNA damage and repair in Mycobacterium terrae after exposure to UV irradiation.” J. Appl. Microbiol., 101(5), 995–1001.
Chatterley, C., and Linden, K. (2010). “Demonstration and evaluation of germicidal UV-LEDs for point-of-use water disinfection.” J. Water Health, 8(3), 479–486.
Cotton, C. A., Douglas, O. M., Gary, O. M., and Timothy, B. P. (2001). “UV disinfection costs for inactivating Cryptosporidium.” J. Am. Water Works Assoc., 93(4), 82–94.
Crawford, M., et al. (2005). “Final LDRD Report: Ultraviolet Water Purification Systems for Rural Environments and Mobile Applications.” Sandia Rep. SAND2005-7245.
Government Report of Canada. (2008). “Ultraviolet disinfection of private water supplies for household or agricultural uses.” TRE-125-2008-11, Agriculture and Agri-Food Canada, Canada.
Kawasaki, K., Koike, C., Takeuchi, M., and Aoyagi, Y. (2006). “Vertical AlGaN deep ultraviolet light emitting diode emitting at 322 nm fabricated by the laser lift-off technique.” Appl. Phys. Lett., 89, 261114.
Potorti, D., et al. (2006). “UV disinfection for New York City—Bridging design with operational strategies.” Proc. of Annual Conf. of American Water Works Association, American Water Works Association, Denver, 1–9.
Rahn, R. O. (1997). “Potassium iodide as a chemical actinometer for 254 nm radiation: Use of iodate as an electron scavenger.” Photochem. Photobiol., 66(4), 450–455.
Rahn, R. O., Stefan, M. I., Bolton, J. R., Goren, E., Shaw, P.-S., and Lykke, K. R. (2003). “Quantum yield of the iodide-iodate chemical actinometer: Dependence on wavelength and concentration.” Photochem. Photobiol., 78(2), 146–152.
Schmelling, D. (2006). “Ultraviolet disinfection guidance manual for the final long term 2 enhanced surface water treatment rule.” EPA 815-R-06-007, Office of Water, U.S. Environmental Protection Agency, Washington, DC.
Vilhunen, S. (2009). “Ultraviolet light emitting diodes in water disinfection.” Environ. Sci. Pollut. Res. Int., 16(4), 439–442.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 137 • Issue 12 • December 2011
Pages: 1215 - 1218
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Aug 12, 2010
Accepted: Jun 3, 2011
Published online: Jun 6, 2011
Published in print: Dec 1, 2011
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.