Characterizing the emissions of polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) from electric arc furnaces during steel-making
文献类型：期刊论文
| 作者 | Shen, Xuejing; Yang, Qiuting; Shen, Jia; Yang, Lili; Wang, Minxiang; Yang, Yuanping; Liu, Guorui
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| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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| 出版日期 | 2021-01-15 |
| 卷号 | 208页码:- |
| 关键词 | PBDD/F Electric arc furnaces Stack gas Emission factors Congener profiles |
| ISSN号 | 0147-6513 |
| 英文摘要 | The amount of steel produced using electric arc furnaces (EAFs) has been increasing in recent years. In this study, stack gases from EAFs in steelmaking plants were analyzed to determine if they are also dominant sources of polybrominated dibenzo-p-dioxin and dibenzofuran (PBDD/F) emissions in China. Isotope dilution high resolution gas chromatography high-resolution mass spectrometry for qualitative and quantitative analysis of PBDD/F congeners revealed that the mean PBDD/F mass concentrations were 271.1-9467.8 pg Nm(-3) for the preheating stages (PS) of three EAF plants and that the corresponding toxic equivalents (TEQs) were 10.8-971.2 pg TEQ Nm(-3). The PBDD/F mass concentration from the smelting stage (SS) at plant E3 was 261.9 pg Nm(-3) (4.5 pg TEQ Nm(-3)). The PBDD/F emission factors (EF) during the preheating stage for the three plants were 0.0356-1.51 mu g TEQ t(-1), and the EF was 0.0359 mu g TEQ t(-1) during the E3 smelting stage. PBDD/Fs were found to contribute 2.39-67.85% to the total mass and 2.84-57.68% to the total dioxin TEQ. These wide fluctuations were caused by differences in the composition of feeding materials and the working temperature of bag filters. Overall, the results indicate that PBDD/F emissions from EAF steelmaking should receive increased attention. The PBDD/ F congener patterns among the three EAF plants were variable, possibly because of differences in raw materials. The results presented herein will facilitate assessment of the contribution of EAFs to total PBDD/F emissions in China and investigations of PBDD/F emissions at different stages of steelmaking processes using EAFs. |
| WOS研究方向 | Environmental Sciences ; Toxicology |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45682]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China 2.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Xuejing,Yang, Qiuting,Shen, Jia,et al. Characterizing the emissions of polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) from electric arc furnaces during steel-making[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2021,208:-. |
| APA | Shen, Xuejing.,Yang, Qiuting.,Shen, Jia.,Yang, Lili.,Wang, Minxiang.,...&Liu, Guorui.(2021).Characterizing the emissions of polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) from electric arc furnaces during steel-making.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,208,-. |
| MLA | Shen, Xuejing,et al."Characterizing the emissions of polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) from electric arc furnaces during steel-making".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 208(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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