Removal of polychlorinated biphenyls by desulfurization and emissions of polychlorinated biphenyls from sintering plants

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

	Removal of polychlorinated biphenyls by desulfurization and emissions of polychlorinated biphenyls from sintering plants
	Wang, Mengjing; Hou, Meifang; Zhao, Kai; Li, Haifeng; Han, Ying; Liao, Xiao; Chen, Xuebin; Liu, Wenbin
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2016-04
卷号	23 期号:8 页码:7369-7375
关键词	Polychlorinated biphenyls Desulfurization Removal Gypsum Fly ash Emission factor
英文摘要	The influence of desulfurization on polychlorinated biphenyls (PCBs) from sintering plants was investigated. The concentrations of dioxin-like (dl) PCBs, toxic equivalents (TEQs), indicator PCBs, and total tri- to deca-chlorinated PCB homolog groups (aPCBs) in the flue gases at the desulfurization system inlets were 290-1906 pg m(-3) (2.4-18.8 pg World Health Organization (WHO) TEQ m(-3)), 420-2885 pg m(-3), and 6496-22,648 pg m(-3), respectively. Desulfurization reduced the values to 43.3-500 pg m(-3) (0.46-9.5 pg WHO-TEQ m(-3)), 183-587 pg m(-3), and 2383-11,639 pg m(-3), respectively. The removed PCBs were adsorbed by gypsum from the flue gas; the PCB concentration distributions at the inlets and outlets and in the gypsum samples were similar. The emission factors were 9.86 ng WHO-TEQ t(-1) for the flue gas and 8.37 ng WHO-TEQ t(-1) for gypsum. Desulfurization decreased the annual atmospheric PCB emissions from 48.6 to 30.7 g WHO-TEQ, and the estimated annual emissions in gypsum were 8.06 g WHO-TEQ. PCBs in the gypsum have not been effectively eliminated and will probably reenter the environment and in turn become a new source of PCB emission. The PCB concentrations in fly ashes from series-connected electrostatic precipitators clearly increased.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/35932]
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	Wang, Mengjing,Hou, Meifang,Zhao, Kai,et al. Removal of polychlorinated biphenyls by desulfurization and emissions of polychlorinated biphenyls from sintering plants[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(8):7369-7375.
APA	Wang, Mengjing.,Hou, Meifang.,Zhao, Kai.,Li, Haifeng.,Han, Ying.,...&Liu, Wenbin.(2016).Removal of polychlorinated biphenyls by desulfurization and emissions of polychlorinated biphenyls from sintering plants.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(8),7369-7375.
MLA	Wang, Mengjing,et al."Removal of polychlorinated biphenyls by desulfurization and emissions of polychlorinated biphenyls from sintering plants".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.8(2016):7369-7375.