The major components and characteristics of particles emitted during recycling of waste printed circuit boards in a typical e-waste workshop of South China
Abstract:Air particle samples from a typical workshop of South China engaged in recycling waste printed circuit boards have been collected and analyzed with respect to chemical constituents. The results show that the composition of particulate matter (PM) from recycling process was totally different from other primary sources. The average concentration of PM was (1430±200.8)μg/m3. Organic matter accounted for 46.7%~51.6% of the PM. The major organic constituents were organophosphates consisting mainly of triphenyl phosphate (TPP) and its methyl substituted compounds, methyl esters of hexadecanoic and octadecanoic acids, levoglucosan and bisphenol A. The element carbon had minor contribution to the PM. Recycling of printed circuit boards was demonstrated as an important contributor of heavy metal contamination, particularly Cd, Pb and Ni, to the local environment. These findings suggest that this primitive recycling method represents a strong source of PM associated with pollutants to the ambient atmosphere of an e-waste recycling locale.
任照芳, 黄渤, 刘明, 毕新慧, 盛国英, 傅家谟. 典型线路板回收过程排放颗粒物的主要成分和特征[J]. 中国环境科学, 2012, 32(8): 1447-1451.
REN Zhao-Fang, HUANG Bo, LIU Ming, BI Xin-Hui, SHENG Guo-Ying, FU Jia-Mo. The major components and characteristics of particles emitted during recycling of waste printed circuit boards in a typical e-waste workshop of South China. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(8): 1447-1451.