Variations of PCDD/Fs emissions from secondary nonferrous smelting plants and towards to their source emission reduction

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

	Variations of PCDD/Fs emissions from secondary nonferrous smelting plants and towards to their source emission reduction
	Yang, Yuanping; Wu, Guanglong; Jiang, Cheng; Zheng, Minghui; Yang, Lili; Xie, Jiahong; Wang, Qingjie; Wang, Minxiang; Li, Cui; Liu, Guorui
刊名	ENVIRONMENTAL POLLUTION
	2020-05
卷号	260 页码:1-8
关键词	PCDD/Fs Secondary metallurgy industry Persistent organic pollutants Oxygen-enrich melting furnace Copper sludge
ISSN号	0269-7491
英文摘要	Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) are cancerogenic organic pollutants that priority controlled by Stockholm Convention with globally 183 signatories now. Secondary nonferrous smelting plants are confirmed to be important sources in China due to its large industrial activities and high emissions of PCDD/Fs. It is important to prioritize source to achieve source emission reduction by conducting field monitoring on typical case plants. Here, the emission profiles and levels of PCDD/Fs were investigated in 25 stack gas samples collected from three secondary copper production (SeCu), two secondary zinc production (SeZn) and two secondary lead production (SePb). Both average mass concentration and toxic equivalency quantity (TEQ) concentrations of PCDD/Fs all generally decreased in the order: SeCu > SeZn > SePb. It is noteworthy that the mean TEQ concentration in stack gas from SeCu with oxygen-enrich melting furnace technology, at 2.7 ng I-TEQ/Nm(3), was much higher than the concentrations of other smelting processes. The average emission factors and annual release amounts of PCDD/Fs from SeCu, SePb and SeZn investigated were 28.4, 1.5, 10.4 mu g I-TEQ/t and 1.03, 0.023, 0.17 g I-TEQ/year, respectively. The ratios of 2,3,7,8-TCDF to 1,2,3,7,8-PeCDF and OCDD to 1,2,3,7,8,9-HxCDD varied to large extent for three metal smelting, which could be used as diagnostic ratios of tracing specific PCDD/Fs sources. Addition of copper-containing sludge into the raw materials might lead to higher PCDD/Fs emissions. It is important to emphasize and reduce the PCDD/Fs emissions from oxygen-enrich melting furnace from secondary copper productions. (C) 2020 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44858]
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	Yang, Yuanping,Wu, Guanglong,Jiang, Cheng,et al. Variations of PCDD/Fs emissions from secondary nonferrous smelting plants and towards to their source emission reduction[J]. ENVIRONMENTAL POLLUTION,2020,260:1-8.
APA	Yang, Yuanping.,Wu, Guanglong.,Jiang, Cheng.,Zheng, Minghui.,Yang, Lili.,...&Liu, Guorui.(2020).Variations of PCDD/Fs emissions from secondary nonferrous smelting plants and towards to their source emission reduction.ENVIRONMENTAL POLLUTION,260,1-8.
MLA	Yang, Yuanping,et al."Variations of PCDD/Fs emissions from secondary nonferrous smelting plants and towards to their source emission reduction".ENVIRONMENTAL POLLUTION 260(2020):1-8.