Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Effects of Recycled Wastewater and Surfactant on the Treatment Efficiency of PAHs-Contaminated Soil in Slurry Bioreactor

슬러리 생물반응기를 이용한 PAHs 오염토양처리에서 재순환수와 계면활성제의 효과

  • Namkoong, Wan (Department of Environmental Engineering, College of Engineering, Konkuk University) ;
  • Na, Kyung-Jin (Environmental Department Shinsung Engineering Consultant, Ltd.)
  • 남궁완 (건국대학교 공과대학 환경공학과) ;
  • 나경진 ((주)신성엔지니어링 환경부)
  • Received : 2001.01.15
  • Accepted : 2001.01.30
  • Published : 2001.03.30
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Abstract

This research was carried out to evaluate the effect of recycled wastewater and surfactant above CMC(critical micelle concentration) on the removal rate of PAHs in bench-scale slurry bioreactor. Kinetic parameters based on zero order and first order kinetic models were estimated. The first order model was able to describe the removal of phenanthrene and pyrene with high correlation coefficients. Addition of recycled wastewater could enhance the removal rates of phenanthrene and pyrene. Addition of surfactant above CMC could enhance desorption rate and removal rate of phenanthrene and pyrene.

PAHs로 오염된 토양을 슬러리 생물반응기로 처리할 경우, 재순환수와 계면활성제 첨가가 PAHs 제거율에 미치는 영향을 살펴보고자 하였다. 대부분 실험결과에서 1차 반응모델이 0차 반응모델보다 phenanthren과 pyrene의 제거율을 설명하는데 높은 상관계수를 나타냈다. 재순환수 및 CMC(critical micelle concentration)이상으로 계면활성제를 첨가한 실험에서 첨가하지 않은 경우 보다 phenanthrene과 pyrene의 제거율이 향상되었다.

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