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Separation and Characterization of Plastic Waste Packaging Contaminated with Food Residues.
Tretsiakova-McNally, Svetlana; Lubarsky, Helen; Vennard, Ashlene; Cairns, Paul; Farrell, Charlie; Joseph, Paul; Arun, Malavika; Harvey, Ian; Harrison, John; Nadjai, Ali.
Afiliación
  • Tretsiakova-McNally S; Belfast School of Architecture and the Built Environment, Ulster University, Belfast Campus, York Street, Belfast BT15 1AP, UK.
  • Lubarsky H; Belfast School of Architecture and the Built Environment, Ulster University, Belfast Campus, York Street, Belfast BT15 1AP, UK.
  • Vennard A; South West College, Cookstown Campus, Cookstown BT80 8DN, UK.
  • Cairns P; South West College, Cookstown Campus, Cookstown BT80 8DN, UK.
  • Farrell C; South West College, Cookstown Campus, Cookstown BT80 8DN, UK.
  • Joseph P; Institute of Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia.
  • Arun M; Institute of Sustainable Industries and Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia.
  • Harvey I; Granville EcoPark, Dungannon BT70 1NJ, UK.
  • Harrison J; South West College, Cookstown Campus, Cookstown BT80 8DN, UK.
  • Nadjai A; Belfast School of Architecture and the Built Environment, Ulster University, Belfast Campus, York Street, Belfast BT15 1AP, UK.
Polymers (Basel) ; 15(13)2023 Jul 04.
Article en En | MEDLINE | ID: mdl-37447588
In this paper, we present the development of a novel processing technology to tackle hard-to-recycle plastic packaging waste contaminated with food residues. The proof-of-concept (POC) technology can effectively separate food residual amounts from plastic waste materials to a level acceptable for further re-use or recycling of the plastic packaging. To assess this technology, we have conducted spectroscopic, thermal, and calorimetric characterizations of the obtained fractions, such as cleaned mixed plastics (CMP), food waste with mixed plastics (FWMP), and a mixture of microplastics (MP). The analyses were carried out with the aid of Fourier-Transform Infrared spectroscopy (FT-IR), Thermo-Gravimetric Analysis (TGA), Microcone Combustion Calorimetry (MCC), and 'bomb' calorimetry. The highest ratio of CMP to FWMP and the lowest amount of MP were obtained utilizing 700 rpm blade rotational speed and 15 s residence time of contaminated plastics in a cutting mill chamber. The plastics were freed from food contamination by 93-97%, which highlights a strong potential of the POC as a solution for 'dry-cleaning' of similar wastes on a larger scale. The main components of the CMP fraction were low-density polyethylene (LDPE), polypropylene (PP), and polyethylene terephthalate (PET), which are recyclable plastics. The knowledge and understanding of thermal degradation behaviours and calorimetric attributes of separated fractions, determined in this study, are essential in informing the industrial players using pyrolysis as a technique for recycling plastics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2023 Tipo del documento: Article Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2023 Tipo del documento: Article Pais de publicación: Suiza