Small-Scale Mechanical Recycling of Solid Thermoplastic Wastes: A Review of PET, PEs, and PP

Canice C. Uzosike, Lachlan H. Yee () and Ricardo Vasquez Padilla ()
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Canice C. Uzosike: Faculty of Science and Engineering, Southern Cross University, Military Road, P.O. Box 157, Lismore, NSW 2480, Australia
Lachlan H. Yee: Faculty of Science and Engineering, Southern Cross University, Military Road, P.O. Box 157, Lismore, NSW 2480, Australia
Ricardo Vasquez Padilla: Faculty of Science and Engineering, Southern Cross University, Military Road, P.O. Box 157, Lismore, NSW 2480, Australia

Energies, 2023, vol. 16, issue 3, 1-23

Abstract: The mechanical recycling of solid plastic waste on a small-scale level can be accomplished with the correct approaches. Thermoplastics are the types of plastic mostly considered for mechanical recycling because of their physical properties and ease of reprocessing. This paper reviews the mechanical reprocessing techniques of selected thermoplastics (polyethylene terephthalate and polyolefins), since they constitute a significant proportion of the plastics used commercially. Furthermore, necessary considerations for the effective operation of small-scale plants, including energy requirements of machinery and optimisation in order to improve efficiency and product quality, are discussed. A clearer understanding and addressing of the process-related challenges will lead to the successful establishment and management of small-scale mechanical recycling facilities to benefit communities. Efficient small-scale mechanical reprocessing establishments have become essential in reducing the environmental impacts of solid plastic waste and for energy conservation.

Keywords: thermoplastics; energy; small-scale mechanical recycling; environment; extrusion; PET; PE; PP (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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