title: Removal of polychlorinated naphthalenes by desulfurization and emissions of polychlorinated naphthalenes from sintering plant.
abstract: The sintering flue gas samples were collected at the inlets and outlets of the desulfurization systems to evaluate the influence of the systems on PCNs emission concentrations, profiles, and emission factors. The PCNs concentrations at the inlets and outlets were 27888-153672 pg m(-3) and 11988-42245 pg m(-3),respectively. Desulfurization systems showed excellent removal for PCNs, and the removal efficiencies of PCNs increase with increasing chlorination level. Lower chlorinated homologs are more sensitive to the desulfurization process than higher ones. High levels of PCNs were also detected in the gypsum (11600-29720 pg g(-1)) and fly ash samples (4946-64172 pg g(-1)). The annual total emissions of PCNs released to flue gas and gypsum from the sintering plants were about 394 kg, 48.5% of which was in gypsum. The surface area of the fly ash samples increased significantly from the first to the fourth stage of the series-connected electrostatic precipitator, accompanying obvious rising of concentration of PCNs in the fly ash samples.
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.|School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
authors.forename: Mengjing
authors.initials: M
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Wenbin
authors.initials: W
authors.lastname: Liu
authors.affiliation: School of Ecological Technology and Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
authors.forename: Meifang
authors.initials: M
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Qianqian
authors.initials: Q
authors.lastname: Li
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Han
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Guorui
authors.initials: G
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Haifeng
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Liao
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Xuebin
authors.initials: X
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.|University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
authors.forename: Minghui
authors.initials: M
authors.lastname: Zheng