한국지하수토양환경학회:학술대회논문집 (Proceedings of the Korean Society of Soil and Groundwater Environment Conference)

한국지하수토양환경학회 (Korean Society of Soil and Groundwater Environment)
권호 표지

염화에텐의 환원성 탈염소화 모텔을 이용한 수소 경쟁에 대한 평가

  • 이일수 (인하대학교 공과대학 환경공학과) ;
  • 배재호 (인하대학교 공과대학 환경공학과) ;
  • ;
  • ;
  • ;
  • Y. Yang (Department of Civil and Environmental Engineering, Stanford University, Stanford, USA) ;
  • P. L. McCarty (Department of Civil and Environmental Engineering, Stanford University, Stanford, USA)
  • 발행 : 2002.09.01
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초록

A numerical model that describes the reductive dechlorination of tetrachloroethene(PCE) to ethene via cis-dichloroethene(CDCE) was developed. The model included two separated dehalogenator groups : one for PCE transformation to cDCE via TCE and the other for cDCE dehalogenation to ethene via VC, competitive inhibition between different chloroethene electron accepters, and competition for H$_2$ between dechlorination and methanogens. Model simulations suggest first, that PCE dechlorinators are better competitive with methanogens than cDCE dechlorinators. Second, not only the initial relative population size of dehalogenators and H$_2$-utilizing methanogens but also electron donor delivery strategies used greatly affects the degree of dehalogenation. As a result, all of factors in the above must be considered in order to achieve economical and successful bioremediation of contaminated soil and groundwater with chlorinated solvents.

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