Estimation and characterization of unintentionally produced persistent organic pollutant emission from converter steelmaking processes

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Estimation and characterization of unintentionally produced persistent organic pollutant emission from converter steelmaking processes
	Li, Sumei ; Zheng, Minghui ; Liu, Wenbin ; Liu, Guorui ; Xiao, Ke ; Li, Changliang
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2014
卷号	21 期号:12 页码:7361-7368
关键词	UP-POPs PCDD/Fs PCBs PCNs Emission factor Converter steelmaking
ISSN号	0944-1344
中文摘要	Unintentionally produced persistent organic pollutants (UP-POPs) including polychlorinated dibenzo-p-dioxins, and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), and polychlorinated naphthalenes (PCNs) were characterized and quantified in stack gas and fly ash from the second ventilation systems in five typical converters in five different steelmaking plants. The 2378-substituted PCDD/Fs (2378-PCDD/Fs) and dioxin-like PCB (dl-PCBs) toxic equivalents (TEQs) were 1.84-10.3 pg WHO-TEQ Nm(-3) in the stack gas and 5.59-87.6 pg WHO-TEQ g(-1) in the fly ash, and the PCN TEQs were 0.06-0.56 pg TEQ Nm(-3) in the stack gas and 0.03-0.08 pg TEQ g(-1) in the fly ash. The concentrations of UP-POPs in the present study were generally lower than those in other metallurgical processes, such as electric arc furnaces, iron ore sintering, and secondary metallurgical processes. Adding scrap metal might increase UP-POP emissions, indicating that raw material composition was a key influence on emissions. HxCDF, HpCDF, OCDF, HpCDD, and OCDD were the dominant PCDD/Fs in the stack gas and fly ash. TeCB and PeCB were dominant in the stack gas, but HxCB provided more to the total PCB concentrations in the fly ash. The lower chlorinated PCNs were dominant in all of the samples. The 2378-PCDD/F, dl-PCB, and PCN emission factors in stack gases from the steelmaking converter processes (per ton of steel produced) were 1.88-2.89, 0.14-0.76(,) and 229-759 mu g t(-1), respectively.
WOS记录号	WOS:000337086300012
公开日期	2015-03-24
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9364]
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
推荐引用方式 GB/T 7714	Li, Sumei,Zheng, Minghui,Liu, Wenbin,et al. Estimation and characterization of unintentionally produced persistent organic pollutant emission from converter steelmaking processes[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2014,21(12):7361-7368.
APA	Li, Sumei,Zheng, Minghui,Liu, Wenbin,Liu, Guorui,Xiao, Ke,&Li, Changliang.(2014).Estimation and characterization of unintentionally produced persistent organic pollutant emission from converter steelmaking processes.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,21(12),7361-7368.
MLA	Li, Sumei,et al."Estimation and characterization of unintentionally produced persistent organic pollutant emission from converter steelmaking processes".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 21.12(2014):7361-7368.