Identification the content of the windbox dust related to the formation of PCDD/Fs during the iron ore sintering process

Yu Chieh Kuo, Yu Cheng Chen, Chi Wei Yang, Jin Luh Mou, Tung Sheng Shih, Peng-Chi Tsai

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This study measured the contents of the ionic and elemental constituents, and the chemical compounds containing in windbox (WB) dusts collected from a commercial iron ore sintering plant, then the results were used to identify possible PCDD/Fs formation pathways in the WB. We found that the abundance in both KCl and NaCl may provide a suitable condition for de novo synthesis of PCDD/Fs in the WB. Al, Fe, K, Ca, and Pb were the top five contents in WB16 dusts, but the co-existence of the above five metal contents warrants the need for further investigation on their roles in PCDD/F formation processes in the future. Although a low concentration of Cu was detected, it might be of importance to PCDD/Fs formation inside the WB. A total of 29 chemical compounds were identified. Among them, several oxygenated organic compound might be associated with PCDD/F formations at the beginning stage, but the roles of aromatic oxygenates on the formation of PCDD/Fs required further investigation. Finally, possible de novo synthesis pathways of PCDD/Fs were proposed based on the above findings. However, the above pathways are required further laboratory studies for validation before possible formation suppression approaches can be determined.

Original languageEnglish
Pages (from-to)351-359
Number of pages9
JournalAerosol and Air Quality Research
Volume11
Issue number4
DOIs
Publication statusPublished - 2011 Aug 1

Fingerprint

Ore sintering
Chemical compounds
Iron ores
PCDD
iron ore
Dust
dust
Organic compounds
Metals
chemical compound
sintering
coexistence
organic compound
metal

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution

Cite this

Kuo, Yu Chieh ; Chen, Yu Cheng ; Yang, Chi Wei ; Mou, Jin Luh ; Shih, Tung Sheng ; Tsai, Peng-Chi. / Identification the content of the windbox dust related to the formation of PCDD/Fs during the iron ore sintering process. In: Aerosol and Air Quality Research. 2011 ; Vol. 11, No. 4. pp. 351-359.
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Identification the content of the windbox dust related to the formation of PCDD/Fs during the iron ore sintering process. / Kuo, Yu Chieh; Chen, Yu Cheng; Yang, Chi Wei; Mou, Jin Luh; Shih, Tung Sheng; Tsai, Peng-Chi.

In: Aerosol and Air Quality Research, Vol. 11, No. 4, 01.08.2011, p. 351-359.

Research output: Contribution to journalArticle

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