Emission factors of particulate matter, CO and CO2 in the pyrolytic processing of typical electronic wastes

论文摘要

A self-designed experimental device was employed to simulate the pyrolytic dismantling process of selected electronic wastes（E-wastes）, including printed wiring boards（PWBs）and plastic casings. The generated particulate matter（PM） of different particle sizes, carbon monoxide（CO） and carbon dioxide（CO2） were determined, and the corresponding emission factors（EFs） were estimated. Finer particles with particle sizes of 0.4–2.1 μm accounted for78.9% and 89.3% of PM emitted by the pyrolytic processing of PWBs and plastic casings,respectively, and the corresponding EFs were 9.68 ± 4.81 and 18.49 ± 7.2 g/kg, respectively.The EFs of CO and CO2 from PWBs and plastic casings were 55.9 ± 26.9 and 1182 ± 439 g/kg,and 133.6 ± 34.6 and 2827 ± 276 g/kg, respectively. Compared with other emission sources,such as coal, biomass, and traffic exhaust, the EFs of E-wastes were relatively higher,especially for PM. There were significant positive correlations（p < 0.05） of the initial contents of carbon and nitrogen in PWBs with the related EFs of PM, CO, and CO2, while the correlations for plastic casings were insignificant. The EFs of CO of PWBs were significantly positively correlated with the corresponding EFs of PM and the parent polycyclic aromatic hydrocarbons（PAHs）; however, the same result was not observed for plastic casings.

论文目录

• Introduction
• 1. Materials and methods
•   1.1. Experimental materials
•   1.2. Experimental device and sampling
•   1.3. Sample determination, quality control, and quality assurance
•   1.4. Data analysis and the calculation of EFs
• 2. Results and discussion
•   2.1. Size distribution of PM
•   2.2. EFs of PM
•   2.3. EFs of CO and CO2
•   2.4. Correlation analysis
• 3. Conclusions

文章来源

类型: 期刊论文

作者: Liyuan Chen,Chuanyang Cai,Shuangyu Yu,Yu Liu,Shu Tao,Wenxin Liu

来源: Journal of Environmental Sciences 2019年07期

年度: 2019

分类: 工程科技Ⅰ辑

专业: 环境科学与资源利用

单位: Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University

基金: supported by the Natural Science Foundation Committee of China(No.41390240),the National Basic Research Program of China(No.2014CB441101)

分类号: X76

页码: 93-101

总页数: 9

文件大小: 2046K

下载量: 23