Distribution characteristics of dioxin concentration in pyrolysis-gasification-melting process facilities

생활폐기물 열분해-가스화-용융공정시설에서 다이옥신의 분포특성

  • Son, Jihwan (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Kim, Kiheon (The National Institute of Environmental Research) ;
  • Kang, Youngyeol (The National Institute of Environmental Research) ;
  • Park, Sunku (The National Institute of Environmental Research)
  • 손지환 (한국외국어대학교 환경학과) ;
  • 김기헌 (국립환경과학원) ;
  • 강영렬 (국립환경과학원) ;
  • 박선구 (국립환경과학원)
  • Received : 2006.11.06
  • Accepted : 2006.12.15
  • Published : 2007.02.28

Abstract

This research was designed to investigate the formations of hazardous air pollutants in the MSWs pyrolysis-gasification-melting process. In this survey, PCDDs/PCDFs (polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofuran) were investigated in the two facilities (A and B facilities). In A facility, the PCDDs/DFs concentrations were 0.88, 2.29, 0.16 ng I-TEQ/$m^3$ respectively on the secondary incinerator, boiler and stack. In B facility, the PCDDs/PCDFs concentrations were 0.22, 0.05 ng I-TEQ/$m^3$ respectively on the pyrolysis-gasification-melting furnace and stack. The concentrations of PCDDs/PCDFs increased due to resynthesis during cooling process in the both facilities. High concentrations of PCDDs/PCDFs isomers were founded as 2, 3, 4, 7, 8-PeCDF, 2, 3, 4, 6, 7, 8-HxCDF and 1, 2, 3, 6, 7, 8-HxCDF orderly in A facility, and 2, 3, 4, 7, 8-PeCDF, 1, 2, 3, 7, 8-PeCDD and 2, 3, 4, 6, 7, 8-HxCDF orderly in B facility.

Keywords

PCDDs/PCDFs;pyrolysis;gasification;melting process

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