Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes

Polyethylene terephthalate (PET) is one of the main packaging materials for beverage bottles. Even if this polymer is good to recycle, mechanical recycling processes need a well-sorted input fraction. For less-sorted PET packaging, or even non-food input sources, chemical recycling seems to be a sol...

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Autor principal:	Frank Welle
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	circular economy polyethylene terephthalate beverage bottles chemical recycling food law compliance diffusion modelling Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/a5135e6838384b009fdd8a8f252bc24f
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spelling	oai:doaj.org-article:a5135e6838384b009fdd8a8f252bc24f2021-11-25T19:04:57ZSafety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes10.3390/su1322128542071-1050https://doaj.org/article/a5135e6838384b009fdd8a8f252bc24f2021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/22/12854https://doaj.org/toc/2071-1050Polyethylene terephthalate (PET) is one of the main packaging materials for beverage bottles. Even if this polymer is good to recycle, mechanical recycling processes need a well-sorted input fraction. For less-sorted PET packaging, or even non-food input sources, chemical recycling seems to be a solution to increase PET recycling. For post-consumer recyclates in packaging applications, it is essential that the safety of the recyclates is guaranteed, and the consumers’ health protected. For mechanical recycling processes, evaluation criteria are already established. For chemical recycling processes, however, such evaluation criteria are only roughly available. This study evaluated the safety of the chemical recycling process similar to the approach of the European Food Safety Authority (EFSA). However, due to the lack of information about the contamination level of the input materials for the chemical recycling process, the evaluation was adapted. In addition, the evaluation should be performed separately for the depolymerisation and for the repolymerisation steps. However, due to the high cleaning efficiencies of both steps, the evaluation can focus on the repolymerisation. This simplifies the assessment of the chemical recycling processes considerably.Frank WelleMDPI AGarticlecircular economypolyethylene terephthalate beverage bottleschemical recyclingfood law compliancediffusion modellingEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12854, p 12854 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	circular economy polyethylene terephthalate beverage bottles chemical recycling food law compliance diffusion modelling Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	circular economy polyethylene terephthalate beverage bottles chemical recycling food law compliance diffusion modelling Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Frank Welle Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes
description	Polyethylene terephthalate (PET) is one of the main packaging materials for beverage bottles. Even if this polymer is good to recycle, mechanical recycling processes need a well-sorted input fraction. For less-sorted PET packaging, or even non-food input sources, chemical recycling seems to be a solution to increase PET recycling. For post-consumer recyclates in packaging applications, it is essential that the safety of the recyclates is guaranteed, and the consumers’ health protected. For mechanical recycling processes, evaluation criteria are already established. For chemical recycling processes, however, such evaluation criteria are only roughly available. This study evaluated the safety of the chemical recycling process similar to the approach of the European Food Safety Authority (EFSA). However, due to the lack of information about the contamination level of the input materials for the chemical recycling process, the evaluation was adapted. In addition, the evaluation should be performed separately for the depolymerisation and for the repolymerisation steps. However, due to the high cleaning efficiencies of both steps, the evaluation can focus on the repolymerisation. This simplifies the assessment of the chemical recycling processes considerably.
format	article
author	Frank Welle
author_facet	Frank Welle
author_sort	Frank Welle
title	Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes
title_short	Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes
title_full	Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes
title_fullStr	Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes
title_full_unstemmed	Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes
title_sort	safety evaluation of polyethylene terephthalate chemical recycling processes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a5135e6838384b009fdd8a8f252bc24f
work_keys_str_mv	AT frankwelle safetyevaluationofpolyethyleneterephthalatechemicalrecyclingprocesses
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Safety Evaluation of Polyethylene Terephthalate Chemical Recycling Processes

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