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Comparison of Various Plastics Wastes Using X-ray Fluorescence
Summary
This study used X-ray fluorescence analysis to compare the elemental composition of different types of plastic waste, finding characteristic elemental profiles that could help sort plastics by resin type for recycling. Improved sorting of plastic waste is important for increasing recycling rates and reducing the fraction that ends up as environmental microplastic contamination.
Plastics production is increased recently due to their various applications such as construction, electronic, packaging and others. The rising in plastics demand lead to developed of recycling and energy recovery method to control plastic wastes. Recycling process is needs to be arranged according to resins, colors and transparency of all plastics. Energy dispersive X-ray fluorescence (EDXRF) was developed for the determination of the chemical composition in different plastics materials (with resin identification code) of PETE (1) or PET (01), HDPE (2) or PE-HD (02), V (3) or PVC (03), LDPE (4) or PE-LD, PP (5) or PP (06), PS (6) or PS (06) and Others (7) or O (07). XRF was measured elements such as Si, S, Cl, Fr, Ca, Ti, V, Fe, Cu, Zn, As, Kr, Zr, Nb, Mo and Nb in both kα and kβ lines, where PP with high percentage in both PET and PVC plastics, which is highly hazardous. In addition, chemical compositions in percentages were detected for various plastics materials.