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The Emission and Distribution of PCDD/Fs in Municipal Solid Waste Incinerators and Coal-fired Power Plant

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Volume: 10 | Issue: 6 | Pages: 519-532
DOI: 10.4209/aaqr.2010.03.0017
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Wen-Yinn Lin1, Yee-Lin Wu 2,3, Li-Kai Tu2, Lin-Chi Wang4, Xin Lu2

  • 1 Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei, 10608, Taiwan
  • 2 Department of Environmental Engineering, National Cheng Kung University, Tainan 701, Taiwan
  • 3 Sustainable Environment Research Center, National Cheng Kung University, Tainan, 70101, Taiwan
  • 4 Super Micro Mass Research and Technology Center, Cheng Shiu University, Kaohsiung, 833, Taiwan


The emission and distribution of polychlorinated debenzo-p-dioxins/dibenzofurans (PCDD/Fs) was investigated in two municipal solid waste incinerators (MSWIs) and one coal-fired power plant (PP) in southern Taiwan. Samples were collected from stack flue gases (SFG), bottom residues (BR), super heater (SH), economizer (EC), semi-dry absorber (SDA), bag filter (BF), and fly ash pit (FAP) in MSWIs. Stack flue gases, bottom residues and electrostatic dust collectors (ESD) in PP were also collected. In order to compare the difference between the results of MSWIs and PP, samples from SFG, BS, and FAP in a PP were also determined. Seventeen congeners of PCDD/Fs were analyzed by utilizing a high-resolution gas chromatograph/high-resolution mass spectrometer (HRGC/HRMS). Distributions of total PCDD/F-I-TEQ in each unit of MSWI-A and MSWI-B were SFG (0.3%, 0.07%), BR (3.9%, 0.62%), SH (0.17%, 0.24%), EC (4.2%, 0.05%), SDA (1.29%, 7.06%), and BF (90.14%, 91.97%), respectively. However, those in SFG, BS, and FAP of PP were 99.58%, 0.17%, and 0.25%, respectively. The above results indicated 99.5% PCDD/Fs were trapped in the fly ash of MWSI. On the other hand, 99.7% PCDD/Fs was emitted to the atmosphere from PP. The results of this study provide useful information for controlling PCDD/Fs in MSWIs and PP.


PCDD/Fs Coal-fired power plant Municipal solid waste incinerator

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