Characterization of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans of the Flue Gases, Fly Ash and Bottom Ash in a Municipal Solid Waste Incinerator

Yen-Kung Hsieh; Wei-Sheng Chen; Jinning Zhu; Qianli Huang

doi:10.4209/aaqr.2017.12.0564

Characterization of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans of the Flue Gases, Fly Ash and Bottom Ash in a Municipal Solid Waste Incinerator

Air Toxics Taiwan

Yen-Kung Hsieh¹, Wei-Sheng Chen ¹, Jinning Zhu ², Qianli Huang³

¹Department of Resources Engineering, National Cheng Kung University, Tainan 70101, Taiwan
²School of Resources and Environmental Engineering, Hefei University of Technology, Anhui, Hefei 246011, China
³School of Biological and Medical Engineering, Hefei University of Technology, Anhui, Hefei 230009, China

Received: December 7, 2017
Revised: January 3, 2018
Accepted: January 3, 2018
Download Citation: ||https://doi.org/10.4209/aaqr.2017.12.0564

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Cite this article:
Hsieh, Y.K., Chen, W.S., Zhu, J. and Huang, Q. (2018). Characterization of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans of the Flue Gases, Fly Ash and Bottom Ash in a Municipal Solid Waste Incinerator. Aerosol Air Qual. Res. 18: 421-432. https://doi.org/10.4209/aaqr.2017.12.0564

HIGHLIGHTS

Characterization of PCDD/Fs in stack flue gas.
Characterization of PCDD/Fs in bottom ash.
Characterization of PCDD/Fs in fly ash.
Emission factors of PCDD/Fs.

ABSTRACT

The emissions factors of PCDD/Fs from the stack flue gas, bottom ash and fly ash of a municipal solid waste incinerator (MSWI) were analyzed in this study. The congner profiles of PCDD/F mass were dominant in OCDD and OCDF; however, those of PCDD/Fs-TEQ were mainly 2,3,4,7,8-PeCDF and 1,2,3,7,8-PeCDD in all samples. The PCDD/F emission factors of MSWI per metric ton of waste incinerated from the stack flue gas, bottom ash and fly ash were at an averaged of 0.0919, 7.20 and 12.8 μg PCDD/Fs-WHO₂₀₀₅-TEQ ton^–1, respectively. Futhermore, the emission factor of MSWI in the unit of electricity produced averaged 0.185, 14.5 and 26.3 μg PCDD/Fs-WHO₂₀₀₅-TEQ (MWh)^–1, respectively. As the results shown in this study, the majority of total PCDD/Fs-WHO₂₀₀₅-TEQ were mainly in both bottom ash and fly ashes. From long-term perspective, the disposal of both bottom and fly ashes should pay more attention to this issue. The results of this study provide useful information for both further studies and environmental control strategies aimed at persistent organic compounds (POPs).

Keywords: PCDD/Fs; Municipal solid waste incinerator; Fly ash; Bottom ash; Flue gas.