KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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E. coli Inactivation using Complex Disinfection Process

복합 소독 공정을 이용한 E. coli 불활성화

  • 김동석 (대구가톨릭대학교 환경과학과) ;
  • 박영식 (대구대학교 보건과학부)
  • Received : 2009.11.07
  • Accepted : 2009.11.29
  • Published : 2010.02.28
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Abstract

Conventional disinfectants and disinfection method are expensive, hazardous and often require long periods of exposure. Recently, there is growing interest in complex disinfection process as a disinfection technique in medical instruments such as endoscope, hand piece bur to improve the disinfection efficiency and conveniency. The aim of this study was to evaluate the performance of a new complex process for the purpose of disinfection of Escherichia coli in water. Three single process (electrolysis, UV and ultrasonic process) was combined dual and triple disinfection process. The order of disinfection performance for E. coli in dual process lie in: Electrolysis + UV > Electrolysis + Ultrasonic > UV + Ultrasonic process. Disinfection efficiency of E. coli and degradation of N, N-Dimethyl-4-nitrosoaniline (RNO, indicating material of OH radical formation) of dual process was higher than that of the triple process (Electrolysis + UV + Ultrasonic process). In electrolysis + UV process, disinfection tendency was well agreed with RNO degradation tendency.

Keywords

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