title: Characterization and inventory of PBDD/F emissions from deca-BDE, polyethylene (PE) and metal blends during the pyrolysis process.
abstract: The thermal treatment of waste electrical and electronic equipment (WEEE) is regarded as the largest potential contributor to the environmental release of polybrominated dibenzo-p-dioxins/dibenzofurans (PBDD/Fs). Herein, the pyrolysis of decabromodiphenyl ether (deca-BDE), polyethylene (PE) and metal blends was conducted to investigate the emission characteristics of PBDD/Fs at different thermal treatment conditions. The total yield of polybrominated dibenzo-p-dioxins (PBDDs) was less than that of polybrominated dibenzofurans (PBDFs) during the pyrolysis of the PE matrix and metal blends. 2,3,7,8-TBDF and 1,2,3,7,8-PBDF were the dominant congeners emitted from the pyrolysis. Temperature, presence of oxygen and type of added metal were the critical influencing factors for the PBDD/F formation rates and speciation in the pyrolysis process.
authors.affiliation: School of Pharmacy, Guangdong Medical University, Dongguan 523808, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Mei
authors.affiliation: Analysis Center of Guangdong Medical University, Dongguan 523808, China.
authors.forename: Xiuji
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Xiao
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Cai
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Pei
authors.initials: P
authors.lastname: Chen
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D001572:Benzofurans / Q000032:analysis*; D004147:Dioxins / Q000032:analysis*; D059029:Electronic Waste; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D017745:Incineration; D008670:Metals / Q000032:analysis*; D020959:Polyethylene / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D004147:Dioxins; D055768:Halogenated Diphenyl Ethers; D008670:Metals; D020959:Polyethylene; C010902:decabromobiphenyl ether; C020887:dibenzo(1,4)dioxin
keywords: Decabromodiphenyl ether (deca-BDE); Metal; Polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs); Polyethylene (PE); Pyrolysis; Waste electrical and electronic equipment (WEEE)