|Publisher DOI:||10.1016/j.jhazmat.2019.120874||Title:||Classification of plastic waste originated from waste electric and electronic equipment based on the concentration of antimony||Language:||English||Authors:||Alassali, Ayah
|Issue Date:||15-Dec-2019||Source:||Journal of Hazardous Materials : 120874 (2019-12-15)||Journal or Series Name:||Journal of hazardous materials||Abstract (english):||The aim of this research is a preliminary assessment of antimony concentration in plastic fractions deriving from different e-waste. We considered microwave ovens, desktop computers, laptops, mobile phones, a TV case, a PC monitor and LED lamps (63 items in total). The plastic fraction ranged from 8%-wt in computers and microwave ovens, up to 40%-wt in cell phones and 59%-wt in LED lamps. Specific polymers were identified through Near Infrared spectroscopy. The samples followed three parallel procedures: acid digestion with aqua regia; conversion into ashes at 600 °C then acid digestion with aqua regia; leaching according to UNI10802 reference procedure. Plastic components with significant amounts of antimony were the ones derived from desktop computers (25–1900 mg/kg) and from microwave ovens (830 mg/kg), yet their relative amount compared to the total weight of the item was limited. Items with larger plastic fractions showed lower concentrations of antimony (1–6 mg/kg in mobile phones cases and 160–640 mg/kg in plastic components of LED lamps). Leaching tests revealed that the analyzed plastic fractions could be mostly admitted in non-hazardous waste landfills. The analysis of ashed samples highlighted the need to further improve the acidic extraction procedure.||URI:||http://hdl.handle.net/11420/3088||ISSN:||0304-3894||Institute:||Umwelttechnik und Energiewirtschaft V-9||Type:||(wissenschaftlicher) Artikel|
|Appears in Collections:||Publications without fulltext|
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