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Recycling of PET fines waste by density separation: a way to circularity of plastic
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Orientador(es)
Resumo(s)
Plastic is one of the most used materials due to its specific characteristics such as high flexibility and impact resistance, low cost, formability, light weight and recyclability. In this set, polyethylene terephthalate (PET) based materials are among of the most used plastics on the packaging market worldwide. The European strategy for plastics aims to modify the processes of design, production, use and recycling of plastics. It becomes crucial to study solutions to enhance the circularity of plastics in recycling processes. Therefore, it is mandatory to evaluate the potential separation of PET fines resulting from the recycling process of PET bottles (post-consumer waste), which are still contaminated by other polymers and other materials. The recovery of PET fines was successfully achieved with a multistage density plastics separation process, consisting on the use of solutions of different densities and ensuring the adequate wettability of the residues in the solutions. The addition of this multistage separation process by plastics density, improves PET fines recovery, by achieving 91.7% of pure PET fines from plastic material waste.
Descrição
6th International Conference Wastes: Solutions, Treatments and Opportunities (September 6-8, 2023, Coimbra, Portugal).
Acknowledgements The authors acknowledge the financial support of the Mobilizing Project “Better Plastics – Plastics in a circular economy” – ref. 46091 – Compete 2020.
Acknowledgements The authors acknowledge the financial support of the Mobilizing Project “Better Plastics – Plastics in a circular economy” – ref. 46091 – Compete 2020.
Palavras-chave
PET fines density separation plastic recycling circularity of plastic
Contexto Educativo
Citação
Heleno, M. L., Oliveira, N. S., Gaspar, M., Silveira, A., & Vasco, J. (2023). Recycling of PET fines waste by density separation: a way to circularity of plastic. In C. Vilarinho, F. Castro, & M. J. Quina (Eds.), Book of Proceedings - 6th International Conference WASTES: Solutions, Treatments and Opportunities (pp. 225–228). CVR , UMinho.
Editora
CVR - Centro para a Valorização de Resíduos, Universidade do Minho
Licença CC
Sem licença CC