Thermal decomposition of electronic wastes: mobile phone case and other parts |
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Authors: | Moltó Julia Egea Silvia Conesa Juan Antonio Font Rafael |
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Affiliation: | Chemical Engineering Department. University of Alicante, P.O. Box 99, 03080 Alicante, Spain. julia.molto@ua.es |
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Abstract: | Pyrolysis and combustion runs at 850°C in a horizontal laboratory furnace were carried out on different parts of a mobile phone (printed circuit board, mobile case and a mixture of both materials). The analyses of the carbon oxides, light hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorodibenzo-p-dioxin, polychlorodibenzofurans (PCDD/Fs), and dioxin-like PCBs are shown. Regarding semivolatile compounds, phenol, styrene, and its derivatives had the highest yields. In nearly all the runs the same PAHs were identified, naphthalene being the most common component obtained. Combustion of the printed circuit board produced the highest emission factor of PCDD/Fs, possibly due to the high copper content. |
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Keywords: | WEEE Printed circuit board Semivolatile compounds Dioxins PAHs Pyrolysis |
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