Articles online

Emissions of Polybrominated Diphenyl Ethers during the Thermal Treatment for Electric Arc Furnace Fly Ash

Category: Articles

Volume: 12 | Issue: 2 | Pages: 237-250
DOI: 10.4209/aaqr.2011.09.0143
PDF | RIS | BibTeX

Yi-Ming Lin1, Shao-Qi Zhou1, Shun-I Shih 2, Sheng-Lun Lin 3, Lin-Chi Wang4, Guo-Ping Chang-Chien4

  • 1 College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510640, China
  • 2 Department of Environmental Engineering, Kun Shan University, 949 Da-Wan Rd., Yung Kang, Tainan 71003, Taiwan
  • 3 Department of Environmental Engineering, National Cheng Kung University, 1 University Rd., Tainan 70101, Taiwan
  • 4 Super Micro Mass Research and Technology Center, Cheng Shiu University, 840 Chengching Rd., Kaohsiung 83347, Taiwan


This study investigated the fate of polybrominated diphenyl ethers (PBDEs) in a thermal treatment system that was employed to recover the metals from the electric arc furnace (EAF) fly ash. After 1450°C thermal treatment, the content of PBDEs in the EAF fly ash (50128 ng/kg) was greatly reduced by 98.9%, based on the solid destruction efficiency (SDE). The sums of five PBDE contents in ingot and slag were 86.0 and 32.3 ng/kg, respectively, revealing that the residual PBDE content in slag was much lower than those in woodland (180 and 710 ng/kg) and grassland (440 ng/kg) soils (Harrad and Hunter, 2006). With this PBDE level, the slag can be either safely disposed of in landfills or utilized as construction material. After the 1450°C thermal treatment and 1200°C secondary combustion, 95.8% of the PBDEs were destroyed or removed without air pollution control devices (APCDs). The PBDE concentrations in cooling unit and filter (APCDs) were 8810 and 327 pg/Nm3, respectively, while that in the PUF cartridges (final emission) was 13009 pg/Nm3. However, the PBDE concentration of the untreated flue gas was 22.1 ng/Nm3, which is still higher than that measured in the exhausts from various stationary sources (15.7–46.7 ng/Nm3) (Wang et al., 2010a, c). Fortunately, the concentration of PBDEs can be effectively reduced to a much lower level (13.0 ng/Nm3) in the flue gas. In addition, after the Pearson correlation analyses, the logarithm contents of PBDEs and PCDD/Fs showed a statistically high correlation (r = 0.930–1.000). Consequently, thermal treatment with APCDs can effectively reduce the PBDEs in EAF fly ash, while the heavy metals can also be recovered.


PBDEs EAF fly ash Thermal treatment Emissions

Related Article

Fate of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans during the Thermal Treatment of Electric Arc Furnace Fly Ash

Yi-Ming Lin, Shao-Qi Zhou, Shun-I Shih , Sheng-Lun Lin , Lin-Chi Wang, Zong-Sian Wu
Volume: 11 | Issue: 5 | Pages: 584-595
DOI: 10.4209/aaqr.2011.07.0099

Critical Emissions from the Largest On-Road Transport Network in South Asia

Saroj Kumar Sahu , Gufran Beig, Neha Parkhi
Volume: 14 | Issue: 1 | Pages: 135-144
DOI: 10.4209/aaqr.2013.04.0137

Ambient Air Quality during Diwali Festival over Kolkata – A Mega-City in India

A. Chatterjee , C. Sarkar, A. Adak, U. Mukherjee, S.K. Ghosh, S. Raha
Volume: 13 | Issue: 3 | Pages: 1133-1144
DOI: 10.4209/aaqr.2012.03.0062

Exploring the Variation between EC and BC in a Variety of Locations

Gbenga Oladoyin Salako, Philip K. Hopke , David D. Cohen, Bilkis A. Begum, Swapan K. Biswas, Gauri Girish Pandit, Yong-Sam Chung, Shamsiah Abd Rahman, Mohd Suhaimi Hamzah, Perry Davy, Andreas Markwitz, Dagva Shagjjamba, Sereeter Lodoysamba, Wanna Wimolwattanapun, Supamatthree Bunprapob
Volume: 12 | Issue: 1 | Pages: 1-7
DOI: 10.4209/aaqr.2011.09.0150