Inactivation of Sewage Microorganisms using Multi-Plasma Process

멀티 플라즈마 공정을 이용한 하수 미생물의 불활성화

  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 기초교육원)
  • Received : 2013.09.25
  • Accepted : 2014.03.04
  • Published : 2014.05.30


For the field application of dielectric barrier discharge plasma reactor, a multi-plasma reactor was investigated for the inactivation of microorganisms in sewage. We also considered the possibility of degradation of non-biodegradable matter ($UV_{254}$) and total organic carbon (TOC) in sewage. The multi-plasma reactor in this study was divided into high voltage neon transformers, gas supply unit and three plasma modules (consist of discharge, ground electrode and quartz dielectric tube). The experimental results showed that the inactivation of microorganisms with treated water type ranked in the following order: distilled water > synthetic sewage effluent >> real sewage effluent. The dissolved various components in the real sewage effluent highly influenced the performance of the inactivation of microorganisms. After continuous plasma treatment for 10 min at 180 V, residual microorganisms appeared below 2 log and $UV_{254}$ absorbance (showing a non-biodegradable substance in water) and TOC removal rate were 27.5% and 8.5%, respectively. Therefore, when the sewage effluent is treated with plasma, it can be expected the inactivation of microorganisms and additional improvement of water quality. It was observed that the $NH_4{^+}$-N and $PO{_4}^{3-}$-P concentrations of sewage was kept at the constant plasma discharging for 30 min. On the other hand, $NO_3{^-}$-N concentration was increased with proceeding of the plasma discharge.


Grant : 기본연구 유형II

Supported by : 한국연구재단


  1. Lee, M., K., Jung, K. S., Kam, S. K., 2008, A study on the disinfection of coliform group in the effluent of sewage plant by high voltage electric field treatment, J. Environ. Sci., 17(7), 817-826.
  2. Ministry of Environment, 2002, General guidelines for business transactions handled the installation of the sewage treatment plant disinfection facilities.
  3. Ministry of Environment, 2004, Water treatment plant efficiency.advanced treatment technology-developing cost-effective water treatment ozone generator.
  4. Shi, J., Bian, W., Yin, X., 2009, Organic contaminants removal by the technique of pulsed high-voltage discharge in water, J. Hazard. Mat., 171, 924-931.
  5. Shin, D. H., Lee, Y. T., 2005, Manufacturing and characteristics of the electrodeless UV lampn for disinfection of the sewage effluent, J. Korean Ind. Eng. Chem., 16(4), 570-575.
  6. Han, D. H., Lee, K. K., Lee, Y. T., 2003, The development of electrodeless UV lamp by the sewage effluent disinfection, Appl. Chem., 7(2), 639-642.
  7. Han, J. H., Lee, S. J., Her, N. G., 2011, A study of disinfection of total coliforms in CSOs by by pulsed UV irradiation, 2011 Kor. Soc. Wat. Wastewat.. Kor. Soc. Wat. Qual. Joint Conference Proceedings, 241-242.
  8. Kim, D. S., Park, Y. S., 2013c, Inactivation of microorganisms in sewage using pilot plasma reactor, J. Environ. Health Sci., 39(3), 288-298.
  9. Kim, D. S., Park, Y. S., 2012, Change of hydroponic components by plasma treatment, J. Environ. Sci., 21(3), 363-368.
  10. Kim, D. S., Park, Y. S., 2013a, Development of multi dielectric barrier discharge plasma reactor for water treatment, J. Encviron. Sci., 22(7), 863-872.
  11. Kim, D. S., Park, Y. S., 2013b, E. coli disinfection using multi plasma reactor, J. Environ. Health Sci., 39(2), 187-195.
  12. Kim, D. W., 2007, To disinfect thoroughly national sewage treatment plant effluent,
  13. Kim, Y. R., Han, B. S., Kim, J. K., Kang, H., 2004, Disinfection of total coliforms in sewage treatment effluent using electron beam, J. Kor. Soc. Wat. Qual., 20(4), 376-381.
  14. Korea Water and Wastewater Works Association, 2011, Ministry of the Environment established sewer facility criteria, 555-557.
  15. Lee, J. H., Jang, S. C., Kwon, H. K., Kim, D. W., 2005, A study on efficiency of SBR process by composition of artificially wastewater, J. Environ. Health Sci., 31(2), 99-106.
  16. Beck, Y. S., Sohn, J. S., 2006, Studies on the effect of water quality parameters on total coliform concentrations in sewage effluents, J. Kor. Soc. Wat. Qual., 22(1), 166-171.
  17. Kim, D. S., Park, Y.S., 2011, A basic study of plasma reactor of dielectric barrier discharge for the water treatment, J. Environ. Sci., 20(5), 623-630.