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DOI	10.1016/j.atmosenv.2020.117402
	Emission characteristics of polybrominated diphenyl ethers from the thermal disassembly of waste printed circuit boards
	Tan S.; Chen Z.; Wang R.; Guo J.; Xu Z.
发表日期	2020
ISSN	1352-2310
卷号	226
英文摘要	Thermal disassembly is prevalently applied for the removal of electronic components on waste printed circuit boards (WPCBs), and temperature is an important factor influencing the pollutant emission process. The emission characteristics of polybrominated diphenyl ethers (PBDEs) to the environment under thermal stress were investigated by conducting both bench-scale experiments and pilot-scale experiments over a temperature range from 100 to 260 °C. Bench-scale experiments showed that the emission factors (EFs) for ∑39PBDEs from WPCB powder were obviously higher than those from WPCB fragments. Mono-to tri-BDEs predominated the PBDEs emission at each temperature, and the EFs for the mono-to tri-BDEs from WPCB powder ranged from 232 to 3280 ng/g, respectively. Pilot-scale experiments were done to study the particulate matter (PM) and PBDEs emitted from WPCBs mounted with electronic components using a thermal disassembly machine. The mass of the PM and PBDEs released from WPCBs during heating increased with increasing temperature. A bimodal distribution pattern for the PM with peaks at diameters of 0.4–0.7 and 5.8–9.0 μm was observed. The values of the EFs for ∑39PBDEs varied from 6.41 to 674 ng/g, which were comparable with those calculated from WPCB fragments in the bench-scale experiments. The mass distribution of the ∑39PBDEs in the PM predominated in the size fraction of >9.0 μm and 0.7–1.1 μm at 100 and 260 °C, respectively. The highly brominated PBDEs (hexa- and hepta-BDEs) had a mass median aerodynamic diameter (MMAD) greater than 2.5 μm, while the lightly brominated PBDEs (mono-to penta-BDEs) were mainly distributed in finer particles, with a MMAD of less than 2.5 μm. The particle size distribution of PBDEs was significantly correlated with the distribution of organic carbon (OC) in PM. All these results can provide basic data for gas pollution related to PBDEs and its control for electronic waste recycling. © 2020 Elsevier Ltd
关键词	Emission factors Particulate PBDEs Polybrominated diphenyl ethers (PBDEs)Thermal disassembly Waste printed circuit boards
语种	英语
scopus关键词	Electronic equipment; Ethers; Machine components; Network components; Organic carbon; Particle size; Particle size analysis; Particles (particulate matter); Pollution control; Printed circuit boards; Timing circuits; Emission factors; Particulate PBDEs; Polybrominated diphenyl ether (PBDEs); Thermal disassembly; Waste printed circuit board; Organic pollutants; carbon; organic carbon; polybrominated diphenyl ether; concentration (composition); electronic waste; particle size; particulate matter; PBDE; recycling; temperature; air pollutant; Article; e-waste; heating; particle size; particulate matter; powder; priority journal; quantitative analysis; recycling; temperature stress; waste printed circuit board
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249246
作者单位	School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; Guangdong Provincial Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 510632, China
推荐引用方式 GB/T 7714	Tan S.,Chen Z.,Wang R.,et al. Emission characteristics of polybrominated diphenyl ethers from the thermal disassembly of waste printed circuit boards[J],2020,226.
APA	Tan S.,Chen Z.,Wang R.,Guo J.,&Xu Z..(2020).Emission characteristics of polybrominated diphenyl ethers from the thermal disassembly of waste printed circuit boards.ATMOSPHERIC ENVIRONMENT,226.
MLA	Tan S.,et al."Emission characteristics of polybrominated diphenyl ethers from the thermal disassembly of waste printed circuit boards".ATMOSPHERIC ENVIRONMENT 226(2020).