Emissions of Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans from the Incinerations of Both Medical and Municipal Solid Wastes

Received: May 31, 2003
Revised: May 31, 2003
Accepted: May 31, 2003
Download Citation: RIS|BibTeX|https://doi.org/10.4209/aaqr.2003.06.0001  

Cite this article:
Lee, W.S., Chang-Chien, G.P., Wang, L.C., Lee, W.J., Tsai, P.J. and Chen, C.K. (2003). Emissions of Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans from the Incinerations of Both Medical and Municipal Solid Wastes. Aerosol Air Qual. Res. 3: 1-6. https://doi.org/10.4209/aaqr.2003.06.0001

ABSTRACT

Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) from the stack flue gases of four medical waste incinerators (MWIs) and ten municipal solid waste incinerators (MSWIs) were investigated. The mean PCDD/F concentrations in the stack flue gases of these MWIs and MSWIs is 0.521 ng I-TEQ/Nm³ and 0.0533 ng I-TEQ/Nm³, respectively. In the stack flue gases of MWIs, OCDD, 1,2,3,4,6,7,8-HpCDD, 1,2,3,4,6,7,8-HpCDF and OCDF were the major congeners, while in MSWIs, OCDD and 1,2,3,4,6,7,8-HpCDD were the major ones. The mean PCDD/F emission factors (20.1 μg I-TEQ/ ton-waste) of the MWIs was about 210 times of magnitude higher than that of MSWIs, which was 0.0939 μg I-TEQ/ton-waste. In Taiwan, the annual emissions of PCDD/Fs from MWIs and MSWIs are 0.371 g I-TEQ/year and 0.737 g I-TEQ/year, respectively. Although the contribution of PCDD/Fs from MWIs to the atmosphere was 50.3% of that from MSWIs, it should be noted that most MWIs are equipped with a low stack and are situated in the proximity of the residential area and PCDD/F emissions from MWIs could significantly affect its surrounding environment.

Keywords: PCDD/Fs; Emission factor; Incineration; Municipal solid waste, Medical waste