Monochlorinated to Octachlorinated Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Emissions in Sintering Fly Ash from Multiple-Field Electrostatic Precipitators

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

	Monochlorinated to Octachlorinated Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Emissions in Sintering Fly Ash from Multiple-Field Electrostatic Precipitators
	Li, Qianqian; Wang, Mengjing; Liu, Wenbin; Fang, Mingliang; Han, Ying
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2018-02-20
卷号	52 期号:4 页码:1871-1879
ISSN号	0013-936X
文献子类	Article
英文摘要	Polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) emissions in fly ash from multiple-field electrostatic precipitators in different sized sintering plants were studied. The monochlorinated-trichlorinated and tetrachlorinated-octachlorinated PCDD/F concentrations were higher for small plants (90 m(2)) than for medium (91-180 m(2)) and large (>180 m(2)) plants. The PCDD/F concentrations and less-chlorinated PCDD/F contributions to the total PCDD/F concentrations increased as the fly ash particle size decreased moving through the precipitator stages; the abundance of monochlorinated-trichlorinated PCDD/F congeners and homologues also increased. The ash particle size and surface area can be directly used to indicate monochlorinatedtrichlorinated PCDD/Fs and toxic equivalents (TEQs). Previously ignored PCDD/F emissions in discarded fly ash were identified. Estimated total monochlorinatedtrichlorinated PCDD/F and TEQ emissions in discarded fly ash were 155 and 1.979 kg TEQ, respectively, in 2003-2014, and the ratio between annual PCDD/F emissions in discarded fly ash and flue gases has gradually increased. Reductions in monochlorinated-trichlorinated PCDD/F emitted in flue gas and fly ash in 2003-2014 were 28 and 40 kg, respectively, because of the phasing out of small-scale plants. Reductions in TEQs emitted in flue gas and fly ash in 2003-2014 were 7476 and 180 g TEQ, respectively.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40990]
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, Qianqian,Wang, Mengjing,Liu, Wenbin,et al. Monochlorinated to Octachlorinated Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Emissions in Sintering Fly Ash from Multiple-Field Electrostatic Precipitators[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2018,52(4):1871-1879.
APA	Li, Qianqian,Wang, Mengjing,Liu, Wenbin,Fang, Mingliang,&Han, Ying.(2018).Monochlorinated to Octachlorinated Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Emissions in Sintering Fly Ash from Multiple-Field Electrostatic Precipitators.ENVIRONMENTAL SCIENCE & TECHNOLOGY,52(4),1871-1879.
MLA	Li, Qianqian,et al."Monochlorinated to Octachlorinated Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Emissions in Sintering Fly Ash from Multiple-Field Electrostatic Precipitators".ENVIRONMENTAL SCIENCE & TECHNOLOGY 52.4(2018):1871-1879.