폐기물소각시설의 다이옥신에 대한 배출특성

Abstract

This study was executed to figure out source identification and emission characteristics of PCDD/DFs discharged from waste incinerators (industrial waste incinerator, industrial specific waste incinerator, medical incinerator, municipal waste incinerator). Polychlorinated dibenzo-ρ-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in flue gas form waste incinerators in Korea were estimated using stack sampler and high resolution gas chromatography coupled to high resolution mass spectrometer (HRGC/HRMS). 17 of 2,3,7,8-substituted PCDD/DFs were investigated to levels and congener profiles in flue gas from waste incinerators with different size and air pollution control device (APCD) systems. The results of PCDD/DFs showed the levels of 0.2∼100.2 ng/Nm³ of APCD Class 1, 0.4∼96.4 ng/Nm³ of APCD Class 2 and 0∼50.4 ng/Nm³ of APCD Class 3. The concentrations of PCDD/DFs applying I-TEF value were 2.7∼7878.06 pg I-TEQ/m³ of APCD Class 1, 37.65∼7647.63 pg I-TEQ/m³ of APCD Class 2 and 0∼1765.21 pg I-TEQ/m³ of APCD Class 3. According to the emission assessment results by incineration quantity and air pollution control device (APCD), PCDD/DFs emission levels in large size facilities were the highest value, on the other habd it was the lowest level from small size facilities, however emission of PCDD/DFs applying I-TEF value level in medium size faculities were the highest value.