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Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans from stack flue gases of sinter plants.
Chemosphere. 2003 Mar; 50(9):1123-9.C

Abstract

This study investigated four sinter plants, classified into two categories--with selective catalytic reduction (SCR) (S1, S2 and S3) and without SCR (S4) as its air pollution control device. Polychlorinated dibenzofurans (PCDFs) are dominant in the stack flue gases of sinter plants with and without SCR. The polychlorinated dibenzofurans/polychlorinated dibenzo-p-dioxins (PCDFs/PCDDs) ratio exceeds 1 extremely. The degree of chlorination of the sinter plant without SCR is towards hepta and hexa congeners while that of the sinter plant with SCR is towards penta and hexa congeners. PCDD/Fs are indeed decomposed (75.5% and 69% on ng and ng TEQ bases, respectively) and not only reduced in degree of chlorination. The overall concentration in the stack flue gas of sinter plants with SCR (7.97-14.1 ng/Nm(3); 0.995-2.06 ng TEQ/Nm(3)) is lower than that of the sinter plant without SCR (28.9 ng/Nm(3); 3.10 ng TEQ/Nm(3)). In Taiwan, based on the emission factors of 0.970 microg TEQ/ton-feedstock (sinter plants with SCR) and 3.13 microg TEQ/ton-feedstock (sinter plant without SCR), the annual PCDD/F emission of 44.7 g TEQ/year from sinter plants is 60 and 121 times higher than those from municipal solid waste incinerators (0.750 g TEQ/year) and MWIs (0.369 g TEQ/year). These results show that sinter plants have become the dominating PCDD/F emission source since tighter emission limits have been applied to incinerators.

Authors+Show Affiliations

Department of Environmental Engineering, Graduate Institute of Environmental and Occupational Health, National Cheng Kung University, 1, University Road, Tainan 70101, Taiwan, ROC. wjlee@mail.ncku.edu.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12547326

Citation

Wang, Lin-Chi, et al. "Emissions of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans From Stack Flue Gases of Sinter Plants." Chemosphere, vol. 50, no. 9, 2003, pp. 1123-9.
Wang LC, Lee WJ, Tsai PJ, et al. Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans from stack flue gases of sinter plants. Chemosphere. 2003;50(9):1123-9.
Wang, L. C., Lee, W. J., Tsai, P. J., Lee, W. S., & Chang-Chien, G. P. (2003). Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans from stack flue gases of sinter plants. Chemosphere, 50(9), 1123-9.
Wang LC, et al. Emissions of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans From Stack Flue Gases of Sinter Plants. Chemosphere. 2003;50(9):1123-9. PubMed PMID: 12547326.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans from stack flue gases of sinter plants. AU - Wang,Lin-Chi, AU - Lee,Wen-Jhy, AU - Tsai,Perng-Jy, AU - Lee,Wei-Shan, AU - Chang-Chien,Guo-Ping, PY - 2003/1/28/pubmed PY - 2003/5/9/medline PY - 2003/1/28/entrez SP - 1123 EP - 9 JF - Chemosphere JO - Chemosphere VL - 50 IS - 9 N2 - This study investigated four sinter plants, classified into two categories--with selective catalytic reduction (SCR) (S1, S2 and S3) and without SCR (S4) as its air pollution control device. Polychlorinated dibenzofurans (PCDFs) are dominant in the stack flue gases of sinter plants with and without SCR. The polychlorinated dibenzofurans/polychlorinated dibenzo-p-dioxins (PCDFs/PCDDs) ratio exceeds 1 extremely. The degree of chlorination of the sinter plant without SCR is towards hepta and hexa congeners while that of the sinter plant with SCR is towards penta and hexa congeners. PCDD/Fs are indeed decomposed (75.5% and 69% on ng and ng TEQ bases, respectively) and not only reduced in degree of chlorination. The overall concentration in the stack flue gas of sinter plants with SCR (7.97-14.1 ng/Nm(3); 0.995-2.06 ng TEQ/Nm(3)) is lower than that of the sinter plant without SCR (28.9 ng/Nm(3); 3.10 ng TEQ/Nm(3)). In Taiwan, based on the emission factors of 0.970 microg TEQ/ton-feedstock (sinter plants with SCR) and 3.13 microg TEQ/ton-feedstock (sinter plant without SCR), the annual PCDD/F emission of 44.7 g TEQ/year from sinter plants is 60 and 121 times higher than those from municipal solid waste incinerators (0.750 g TEQ/year) and MWIs (0.369 g TEQ/year). These results show that sinter plants have become the dominating PCDD/F emission source since tighter emission limits have been applied to incinerators. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/12547326/Emissions_of_polychlorinated_dibenzo_p_dioxins_and_dibenzofurans_from_stack_flue_gases_of_sinter_plants_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(02)00702-6 DB - PRIME DP - Unbound Medicine ER -