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Acknowledgement to Reviewers of Water in 2016
Open AccessArticle

UV-LEDs Efficiently Inactivate DNA and RNA Coliphages

1
Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, FI 70211 Kuopio, Finland
2
Department of Biology, College of Sciences for Women, University of Baghdad, 10071 Baghdad, Iraq
*
Author to whom correspondence should be addressed.
Academic Editor: Vincenzo Naddeo
Water 2017, 9(1), 46; https://doi.org/10.3390/w9010046
Received: 29 September 2016 / Revised: 28 December 2016 / Accepted: 5 January 2017 / Published: 12 January 2017
UV-LEDs are a new method of disinfecting drinking water. Some viruses are very resistant to UV and the efficiency of UV-LEDs to disinfect them needs to be studied. Drinking water was disinfected with UV-LEDs after spiking the water with MS2 and four UV- and/or Cl-resistant coliphages belonging to RNA or DNA coliphages isolated from municipal wastewater. UV-LEDs operating at a wavelength of 270 nm for 2 min with 120 mW of irradiation caused 0.93–2.73 Log10-reductions of coliphages tested in a reactor of a 5.2 L volume. Irradiation time of 10 min in the same system increased the Log10-reductions to 4.30–5.16. Traditional mercury UV (Hg-UV) lamp at a 254 nm wavelength caused 0.67–4.08 Log10-reductions in 2 min and 4.56–7.21 Log10-reductions in 10 min in 10 mL of water. All coliphages tested except MS2 achieved 4 Log10-reductions with UV-LEDs at a dose that corresponded to 70 mWs/cm2 using Hg-UV. Thus, UV-LEDs are a promising method of disinfecting UV- and/or Cl-resistant viruses. View Full-Text
Keywords: disinfection; DNA coliphages; Hg-UV; RNA coliphages; UV-LEDs; water disinfection; DNA coliphages; Hg-UV; RNA coliphages; UV-LEDs; water
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MDPI and ACS Style

Zyara, A.M.; Heinonen-Tanski, H.; Veijalainen, A.-M.; Torvinen, E. UV-LEDs Efficiently Inactivate DNA and RNA Coliphages. Water 2017, 9, 46. https://doi.org/10.3390/w9010046

AMA Style

Zyara AM, Heinonen-Tanski H, Veijalainen A-M, Torvinen E. UV-LEDs Efficiently Inactivate DNA and RNA Coliphages. Water. 2017; 9(1):46. https://doi.org/10.3390/w9010046

Chicago/Turabian Style

Zyara, Alyaa M.; Heinonen-Tanski, Helvi; Veijalainen, Anna-Maria; Torvinen, Eila. 2017. "UV-LEDs Efficiently Inactivate DNA and RNA Coliphages" Water 9, no. 1: 46. https://doi.org/10.3390/w9010046

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