Juan Qiu, Minghui Tang, Yaqi Peng, Shengyong Lu This email address is being protected from spambots. You need JavaScript enabled to view it., Xiaodong Li, Jianhua Yan

State Key Laboratory for Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Zhejiang 310027, China


 

Received: December 27, 2019
Revised: March 25, 2020
Accepted: March 29, 2020

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.2019.11.0610

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Cite this article:

Qiu, J., Tang, M., Peng, Y., Lu, S., Li, X. and Yan, J. (2020). Characteristics of PCDD/Fs in Flue Gas from MSWIs and HWIs: Emission Levels, Profiles and Environmental Influence. Aerosol Air Qual. Res. 20: 2085–2097. https://doi.org/10.4209/aaqr.2019.11.0610


HIGHLIGHTS

  • Characteristics of PCDD/Fs in flue gas from MSWIs and HWIs was studied.
  • Emission factors and annual emission amounts in the stack gas were estimated.
  • PCDD/F levels and profiles in ambient air and soil around incinerators were discussed.
 

ABSTRACT


Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the flue gas from two types of waste incinerators (municipal solid waste incinerators and hazardous waste incinerators) the most commonly used in China were investigated in this study. The PCDD/F emissions from the stack gas of the waste incinerators showed a large variation from 0.016 to 0.29 ng I-TEQ m–3 with an average value of 0.103 ng I-TEQ m–3. The emission factors of PCDD/Fs were in the range of 0.056–0.607 µg I-TEQ t–1 (average 0.235 µg I-TEQ t–1) for municipal solid waste incinerators (MSWIs) and 0.07–3.27 µg I-TEQ t–1 (average 1.03 µg I-TEQ t–1) for hazardous waste incinerators (HWIs), respectively. It was estimated that 10.2–88.0 mg I-TEQ (average 35.0 mg I-TEQ) and 1.13–53.0 mg I-TEQ (average 17.1 mg I-TEQ) of PCDD/Fs were annually released to the atmosphere, respectively from MSWIs and HWIs. The level and congener patterns of 17 species of PCDD/Fs in the ambient air and in soil samples around the MSWIs and HWIs were investigated to evaluate the influence of PCDD/F emission on the environment. The PCDD/F concentrations in the ambient air from the 5 MSWIs and 4 HWIs ranged from 0.088 to 13.9 pg I-TEQ m–3 with an average value of 0.185 pg I-TEQ m–3. The soil samples in the vicinity of MSWIs and HWIs presented concentrations between 0.68 and 16.0 ng I-TEQ kg−1 with an average value of 3.98 ng I-TEQ kg–1. This study showed that PCDD/F emission from the incineration plants had an obvious impact on the surrounding ambient air.


Keywords: PCDD/Fs; Flue gas; Emission factor; Air; Soil.

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