Inactivation of Legionella pneumophila by Electrochemical Disinfection

전기화학적 소독에 의한 Legionella pneumophila 불활성화

  • Park, Young-Seek (Department of Health & Environment, Daegu University) ;
  • Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
  • 박영식 (대구대학교 보건환경전공) ;
  • 김동석 (대구가톨릭대학교 환경과학과)
  • Received : 2007.06.28
  • Accepted : 2007.08.23
  • Published : 2007.09.30

Abstract

This study has carried out a performance of dimensionally stable anode for the purpose of disinfection of Legionella pneumophila in water. Three kinds of electrode were prepared by plating and thermal deposition, which were coated by the oxides of Pt, Ru and Ir on Ti metal surface, respectively. The order of disinfection performance for Legionella pneumophila was Ru/Ti > Ir/Ti > Pt/Ti. Free Cl and $ClO_2$ generation of Ir/Ti electrode was higher than that of two electrodes. However, the concentrations of generated $H_2O_2$ and $O_3$ of the Ru/Ti electrode were highest among the three electrodes. The higher NaCl concentration was, the more oxidants was generated and disinfection effect was increased. However, optimum NaCl dosage was 0.0125% due to the regulation on the conductivity and $Cl^-$ concentration for the cooling water quality of air conditioning and refrigeration equipment. With the increase of current, oxidants was more generated and following disinfection effect was increased. The increase of electrode distance reduced oxidants generation due to the low electric power, and their disinfection effect was decreased accordingly.

Keywords

Acknowledgement

Supported by : 학술진흥재단

References

  1. 국립보건원, 세균부 방역과 자료실, 레지오넬라증 예방관리 (2002)
  2. 권순구, 우준희, 김대수, 어수택, 정연태, 김용훈, 박춘식, 폐결핵환자에서 호중구의 $H_20_2$ 형성 및 IgG 수용체의 표현율, 대한내과학회지, 39(5), pp. 613-619 (1990)
  3. 김광욱, 이일희, 김정식, 신기하, 정봉익, 고온 소결된 촉매 산화물 전극의 재료 특성 및 유기물 분해능 연구, 공업화학, 13(3), pp. 285-290 (2002)
  4. 김동석, 박영식, 불용성 전극을 이용한 Rhodamine B 의 전기 화학적 탈색 , 한국물환경학회지, 23(3), pp. 377-384 (2007)
  5. 김영준, 이강평, 이인선, 이기태, 박용석, 전기분해에 의한 밸러스트수 처리기술 개발, 대한조선학회 추계학술발표회 논문집, pp. 174-176 (2005)
  6. 김홍석, 서인석, 최일환, 김연권, 김지연, 이진영, 용존공기를 이용한 소독능 향상 전기분해 소독공정 개발, 한국물환경학회. 대한상하수도학회 공동추계학술발표회 논문집, pp. 625-P628 (2004)
  7. 박영식, 정노성, 김동석, 소규모 오수처리를 위한 전기화학적 방법에 의한 대장균 소독에 관한 연구, 한국환경과학회지, 16(4), pp. 441-447 (2007) https://doi.org/10.5322/JES.2007.16.4.441
  8. 박은희, 차인호, 이상준, 냉각탑수에서 분리한 Pseudomonas aeroginosa KLP-2 배양여액에서의 Legionella pneumophila에 대한 항균활성, Kor. J. Appl. Microbiol. Biotechnol., 29(3), pp. 127-133 (2001)
  9. 유석봉, 전기분해를 적용한 가정용정수기의 살균특성연구, 석사학위논문, 인하대학교 (2005)
  10. 유재정, 민경석, 박정민, 염색폐수중 난분해성물질 전기분해 처리특성, 대한환경공학회지, 25(10), pp. 1277-1282 (2003)
  11. 한국산업규격 KS M 0000-1998, 냉동. 공조용 냉각수 수질 기준(안) (1998)
  12. 허목, 김병현, 김광진, 전기분해법에서의 전극변화에 따른 위생매립장 침출수의 처리 특성, 폐기물자원화, 10(1), pp. 68-74 (2002)
  13. 황광호, 황영옥, 김은정, 정지헌, 조남준, 서울시내 다중이용 시설 냉각탑수의 레지오넬라균 분포 및 혈청학적 특징, 한국환경위생학회지, 25(4), pp. 20-23 (1999)
  14. 厚生省 生活衛生局 企劃課, Legionellosis 防止指針, 財團法 人 Building 管理教育 Center (1993)
  15. Atlas, R. M., Legionella: from environmental habitats to disease pathology, detection and control, Environ. Microbiol., 1, pp. 283-293 (1999) https://doi.org/10.1046/j.1462-2920.1999.00046.x
  16. Bergmann, H., New UV irradiation and direct electrolysis-promising methods for water disinfections, Chem. Eng. J., 85(2/3), pp. 111-117 (2002) https://doi.org/10.1016/S1385-8947(01)00188-7
  17. Chen, X., Chen, G. and Yue, P. L., Stable Ti/$IrO_x-Sb_2O_5-SnO_2$ Anode for $O_2$ Evolution with Low Ir Content, J. Phys. Chem. B., 105, pp. 4623-4628 (2001) https://doi.org/10.1021/jp010038d
  18. Diao, H. F., Li, X. Y., Gu, J. D., Shi, H. C. and Xie, Z. M., Electron microscopic investigation of the bactericidal action of electrochemical disinfection in comparison with chlorination, ozonation and Fenton reaction, Process Biochemistry, 39, pp. 1421-1426 (2004) https://doi.org/10.1016/S0032-9592(03)00274-7
  19. Drogui, P., Elmaleh, S., Rumeau, M., Bernard, C. and Rambaud, A., Oxidising and disinfection by hydrogen peroxide produced in a two-electrode cell, Wat. Res., 35, pp. 3235-3241 (2001a) https://doi.org/10.1016/S0043-1354(01)00021-5
  20. Drogui, P., Elmaleh, S., Rumeau, M., Bernard, C. and Rambaud, A., Hydrogen peroxide production by water electrolysis: application to disinfection, J. of Appl. Electochem., 31, pp. 877-882 (2001b) https://doi.org/10.1023/A:1017588221369
  21. Fraser, D. W., Tsai, T. R. and Crenstein, W., Legionaires' disease: description of an epidemic on pneumonia, N. Engl J. Med., 297, pp. 1189-1197 (1977) https://doi.org/10.1056/NEJM197712012972201
  22. Jeong, J. S., Kim, J. Y., Cho, M., Choi, W. Y. and Yoon, J. Y., Inactivation of Escherichia coli in the electrochemical disinfection using a Pt anode, Chemosphere, 67, pp. 652-659 (2007) https://doi.org/10.1016/j.chemosphere.2006.11.035
  23. Kaufmann, A. F., Mcdade, J. C., Patton, C. M., Bennert, J. V., Newhouse, V. F., Gregg, M. B. and Brachman, P. S., Pontiac fever: isolation of the etiologic agent(Legionella pneumophila) and demonstration of its mode transmission, Am. J. Epidemoil., 114, pp. 337-347 (1981) https://doi.org/10.1093/oxfordjournals.aje.a113200
  24. Kim, B. R., Anderson, J. E., Muller, Mueller, S. A., Gaines, W. A. and Kendall, A. M., Literature review-efficacy of various disinfectants against Legionella in water systems, Wat. Res., 36, pp. 4433-4444 (2002) https://doi.org/10.1016/S0043-1354(02)00188-4
  25. Knudson, G. B., Photoreactivation of UV-irradiated Legionella pneumophila and other Legionella species, Appl. Environ. Microbiol., 18, pp. 75-80 (1985)
  26. Kotz, R., Stucki, S. and Career, B., Electrochemical waste water treatment using high overvoltage anodes. Part I: physical and electrochemical properties of $Sn0_2 $Anodes, J. of Applied Electrochemistry, 21, pp. 14-20 (1991) https://doi.org/10.1007/BF01103823
  27. Li, X. Y., Ding, F., Lo, P. S. and Sin, S. H., P., Electrochemical disinfection of saline wastewater effluent, J. Environ. Eng. ASCE., 128, pp. 697-704 (2002) https://doi.org/10.1061/(ASCE)0733-9372(2002)128:8(697)
  28. Lin, Y. E., Vidic, R. D., Stout, J. E. and Yu, V. L., Legionella in water distribution systems, J. American Water Works Association, 90, pp. 112-121 (1998) https://doi.org/10.1002/j.1551-8833.1998.tb08503.x
  29. Lin, Y. E., Vidic, R. D., Stout, J. E. and Yu, V. L., Negative effect of high pH on biocidal efficacy of copper and silver ions in controlling Legionella pneumophila., Appl. Enviorn. Microbiol., 68, pp. 2771-2775 (2002)
  30. Liu, Z., Stout, J. E., Tedesco, L., Boldin, M., Hwang, C. and Yu, V. L., Efficacy of ultraviolet light in preventing Legionella colonization of a hospital water distribution system, Wat Res., 29, pp. 2275-2280 (1995) https://doi.org/10.1016/0043-1354(95)00048-P
  31. Marrao, G. A., Verissimo, A., Bowker, R. G. and Dacosta, M. S., Biofilms as major sources of Legionella spp. inhydrothermal areas their dispersion into stream water, FEMS. Microbiol. Ecol., 12, pp. 25-33 (1993) https://doi.org/10.1111/j.1574-6941.1993.tb00013.x
  32. Morris, G. K., Patton, C. M., Feely, J. C., Johnson, S. E., Gorman, G. W., Martin, W. T., Skaliy, P., Mallison, G. F., Politi, B. D. and Mackel, D. C., Isolation of Legionnaires' disease bacterium from environmental samples, Ann. Intern. Med., 90, pp. 664-666 (1979) https://doi.org/10.7326/0003-4819-90-4-664
  33. Naumczky, J., Szpyrkowicz, L. and Zillo-Grandi, F., Electrochemical treatment of textile wastewater, Wat. Sci. Tech., 34(11), pp. 17-24 (1996)
  34. States, S. J., Conley, L. F., Kuchta, J. M., Oleck, B. M., Lipovich, M. J., Wolford, R. S., Wadowsky, R .M., McNamara, A. M., Sykora, J. L, Keleti, G. and Yee, R. B., Survival and multiplication of Legionella pneumophila in municipal drinking water system, Appl. Environ. Microbiol., 53, pp. 979-986 (1987)
  35. Suzuki, H., Sumida, Y., Umezawa, H., Kuwaki, Y., Iseki, M., Takaoka, D. and Yasuda, M., Electrolytic disinfection system for recycling water with high-performance direct-electrolysis techonolgy, 한국물환경학회. 대한상하수도학회 공동추계학술발표회 논문집, pp. 512-515 (2004)
  36. Tobin, O. J., Beare, J., Dunnili, M. S., Fisherhoch, S. P., French, M., Mitchell, R. C., Morons, P. J. and Myers, M. F., Legionnaires' disease in a transplant unit: isolation of the causative agent from shower baths, Lancet., 2, pp. 118-121 (1981)
  37. Zhang, L. and Liu, W. J., Study on factors affecting electrochemical disinfection effect, China Water & Wastewater, 22(23), pp. 70-73 (2006)