Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Effect of Disinfection Process Combination on E. coli Deactivation and Oxidants Generation

E. coli 불활성화와 산화제 생성에 미치는 소독 공정 결합의 영향

  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 기초교육원)
  • Received : 2011.03.23
  • Accepted : 2011.05.23
  • Published : 2011.07.31
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Abstract

The aim of this research was to evaluate the effect of combination of disinfection process (electrolysis, UV process) on Escherichia coli (E. coli) disinfection and oxidants (OH radical, $ClO_2$, HOCl, $H_2O_2$ and $O_3$) generation. The effect of electrolyte type (NaCl, KCl and $Na_2SO_4$) on the E. coli disinfection and oxidants generation were evaluated. The experimental results showed that performance of E. coli disinfection of electrolysis and UV single process was similar. Combination of electrolysis and UV process enhanced the E. coli disinfection and 4-carboxybenzaldehyde (4-CBA, indicator of the generation of OH radical) degradation. It is clearly showed synergy effect on disinfection and OH radical formation. However chlorine ($ClO_2$, HOCl) and oxygen type ($H_2O_2$, $O_3$) oxidants were decreased with the combination of two process. In electrolysis + UV complex process, electro-generated $H_2O_2$ and $O_3$ were reacted with UV light of UV-C lamp and increased 4-CBA degradation(increase OH radical). Disinfection of electrolyte of chlorine type was higher than that of the sulfate type electrolyte due to the higher generation of OH radical and oxidants.

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References

  1. Betancourt, W. Q., Rose, J. B., 2004, Drinking water treatment processes for removal of Crytosporidium and Giardia, Veterinary Parasitology, 26, 219-234.
  2. Karl, G. U., Jeannie, L. D., 1994, Ultraviolet disinfection of wastewater: effect of dose on subsequent photoreactivation, Water Research, 28(4), 805-817. https://doi.org/10.1016/0043-1354(94)90087-6
  3. Kim, D. S., Park, Y. S., 2007a, Decolorization of Rhodamine B by Fenton, Fonton-Like and Photo-Fenton-Like Oxidation, Journal of Environmental Health Sciences, 33(2), 150-157. https://doi.org/10.5668/JEHS.2007.33.2.150
  4. Kim, D. S., Park, Y. S., 2009a, Effect of operating parameters on electrochemical degradation of Rhodamine B by three-dimensional electrode, Journal of Environmental Heath Sciences, 35(4), 295-303. https://doi.org/10.5668/JEHS.2009.35.4.295
  5. Kim, D. S., Park, Y. S., 2007b, Electrochemical decolorization of a Rhodamine B using dimensionally stable anode, Journal of the Korean Society of Water Quality, 23(3), 377-384.
  6. Kim, D. S., Park, Y. S., 2009b, Inactivation of E. coli by electrolysis+UV process, Journal of the Korean Society of Water Quality, 25(5), 667-693.
  7. Kim, Y. H., Lee, C. H., Lee, S. H., 2007, Inactivation effect of Cryptosporidium by ozone and UV, Journal of Korean Society of Environmental Engineers, 29(1), 31-39.
  8. Matos, J., Laine, J., Herrmann, J. M., 1999, Association of activated carbons of different origins with titania in the photocatalytic purification of water, Carbon, 37, 1870-1872. https://doi.org/10.1016/S0008-6223(99)00198-0
  9. Muguganandham, M., Swaminathan, M., 2004, Solar photocatalytic degradation of a reactive azo dye in $TiO_2$-suspension, Solar energy Materials & Solar Cells, 81, 439-457. https://doi.org/10.1016/j.solmat.2003.11.022
  10. Oh, B. S., Kang, M. G., Oh, H. J., Kang, J. W., 2004, Production property of hydrogen formed from ozone photolysis and optimization of ozone/UV process, Journal of Korean Society of Environmental Engineers, 26(5), 573-578.
  11. Park, Y. S., Kim, D. S., 2007, Inactivation of Legionella by electrochemical disinfection, Journal of Korean Society on Water Quality, 23(5), 613-619.
  12. Park, Y. S., Jeong, N. S., and Kim, D. S., A study on Escherichia coli disinfection by the electrochemical method for small sewerage system, Journal of the Environmental Sciences, 16(4), 441-447, 2007. https://doi.org/10.5322/JES.2007.16.4.441
  13. Park, Y. S., 2008, Removal of Rhodamine B in water by ultraviolet radiation combined with electrolysis (I), Journal of Environmental Heath Sciences, 34(6), 439-445. https://doi.org/10.5668/JEHS.2008.34.6.439
  14. Rosenfeldt, E. J., Linden, K. G., Canonnica, S., von Gunten, U., 2006, Comparison of the efficiency of .OH radical formation during ozonation and the advances oxidation processes $O_3/H_2O_2$ and $UV/H_2O_2$, Water Research, 40, 3695-3704. https://doi.org/10.1016/j.watres.2006.09.008
  15. Yeom, C. M., Kim, D. K., Chung, K. Y., Yoo, Y. S., Cho, C. H., 2003, UV disinfection regulations for drinking water in foreign countries, Journal of the Korean Society of Water Quality, 17(6), 741-747.

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