Articles online

The Behaviors and Relationships of PCDD/Fs and Chlorobenzenes in the Whole Process of one Municipal Solid Waste Incinerator

Category: Air Pollution and Health Effects

Volume: 18 | Issue: 12 | Pages: 3134-3146
DOI: 10.4209/aaqr.2018.03.0092

Export Citation:  RIS | BibTeX

Mingxiu Zhan1,2, Tianjiao Wang2,3, Jie Yang4, Longjie Ji5, Guoshun Zhou3, Tong Chen 1, Xiaodong Li2, Xiaoqing Lin2

  • 1 College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
  • 2 State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China
  • 3 Institute of Incineration Technology, Everbright Envirotech (China) Ltd., Nanjing 211102, China
  • 4 Zhejiang Fangyuan New Materials Co., Ltd., Zhejiang 318000, China
  • 5 National Engineering Laboratory for Site Remediation Technologies, Beijing Construction Engineering Group Environmental Remediation Co., Ltd., Beijing 100015, China


The behavior of CBz compared with PCDD/Fs in the whole MSWI system was analyzed.
Characteristics in flue gas and fly ash were all investigated.
The detailed relationships among all PCDD/Fs and CBz congener profiles were revealed.
Correlation for gas/solid PCDD/Fs indication before and after the APCD were found.


We examined the characteristics of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) and chlorobenzenes (CBzs) in the flue gas and fly ash of a municipal solid-waste incinerator in four locations: the outlet of the furnace, the outlet of the high-temperature superheater, the inlet of the semi-dry scrubber and the stack after air pollution control device (APCD) processing. Both PCDD/Fs and CBzs were mostly formed at low temperatures. The dominant PCDD/Fs generated in the gaseous phase were 23478-PeCDF and TCDF, and 124-TrCBz was the major CBz in both the gaseous and solid phase. More PCDD/Fs were found in the solid phase with the decrease of temperature, while CBzs exhibited the opposite trend. Furthermore, activated carbon with a low surface area and mesoporous volume showed low flue gas removal efficiencies for PCDD/Fs and CBzs in the flue gas. The fraction of PCDD/Fs in the solid phase largely decreased when the flue gas passed through the fabric filter. Additionally, the memory effects of the aged filters increased the fractions of 234678-HxCDF, 1234678-HpCDF and 1234678-HxCDD. Most important, the relationships between PCDD/Fs and CBzs in the flue gas and fly ash were analyzed, respectively. In the gaseous phase, most of the CBzs displayed high correlation coefficients with PCDD/Fs, especially 123-TrCBz (R2 > 0.8). In the solid phase, low correlation coefficients were found between CBzs and PCDD/Fs except for 135-TrCBz and 123-TrCBz (R2 = 0.8). A remarkable correlation was also found between 124-TrCBz in the flue gas and PCDD/Fs in the fly ash. We conclude that TrCBzs may be regarded as the best indicator for PCDD/Fs in both flue gas and fly ash.


Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans Chlorobenzenes Emission characteristic Correlations Gas-solid distribution

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