Evaluation of dioxins and dioxin-like compounds from a cement plant using carbide slag from chlor-alkali industry as the major raw material

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

	Evaluation of dioxins and dioxin-like compounds from a cement plant using carbide slag from chlor-alkali industry as the major raw material
	Zhang, Xian; Zhao, Yuyang; Zhan, Jiayu; Liu, Guorui; Zheng, Minghui; Jin, Rong; Yang, Lili; Hao, Liwei; Wu, Xiaolin; Wang, Pu
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2017-08-28
卷号	330 期号:0 页码:135-141
关键词	Cement Dioxin Polychlorinated Biphenyl Polychlorinated Naphthalene Carbide Slag
英文摘要	Carbide slag produced from chlor-alkali industry contains high amounts of calcium compounds and can potentially be used as raw material for cement production; however, it contains large amounts of chlorine so it is essential to evaluate the emissions of chlorinated organic pollutants, including polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), and polychlorinated naphthalenes (PCNs). A field study of the emission profiles of these pollutants in a cement plant using such slag was performed. The average concentrations of PCDD/Fs, PCBs, and PCNs in stack gases collected at the kiln back end were 6.31, 1.07, and 31.89 pg TEQ m(-3), respectively. PCDFs dominated over PCDDs in particulate samples. Di- to pentachlorinated biphenyls were dominant homologs in the particulate samples. MonoCBs were the dominant homolog in stack gases from the kiln back end, and homolog concentrations decreased with increasing chlorine numbers. Mono- and diCNs accounted for 48-98% of PCNs. The estimated toxic equivalents of stack gas emissions of PCNs, classified as new persistent organic pollutants under Stockholm Convention, were unexpectedly higher than those of PCDD/Fs and PCBs. A mass balance indicated that all of the toxic equivalents were reduced by this cement kiln system. The highest 2,3,7,8-PCDD/F output is with clinker. (C) 2017 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39310]
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	Zhang, Xian,Zhao, Yuyang,Zhan, Jiayu,et al. Evaluation of dioxins and dioxin-like compounds from a cement plant using carbide slag from chlor-alkali industry as the major raw material[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,330(0):135-141.
APA	Zhang, Xian.,Zhao, Yuyang.,Zhan, Jiayu.,Liu, Guorui.,Zheng, Minghui.,...&Wang, Pu.(2017).Evaluation of dioxins and dioxin-like compounds from a cement plant using carbide slag from chlor-alkali industry as the major raw material.JOURNAL OF HAZARDOUS MATERIALS,330(0),135-141.
MLA	Zhang, Xian,et al."Evaluation of dioxins and dioxin-like compounds from a cement plant using carbide slag from chlor-alkali industry as the major raw material".JOURNAL OF HAZARDOUS MATERIALS 330.0(2017):135-141.