Pet Waste Management by Chemical Recycling: A Review

Sinha, Vijaykumar; Patel, Mayank R.; Patel, J. D.

doi:10.1007/s10924-008-0106-7

Cited by 665 publications

(526 citation statements)

References 65 publications

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“…Meanwhile, if the melt is cooled quickly while still in stretched state, the chains are frozen with their original orientation. The resulting material is an extremely tough plastic, typical of a PET bottle (Sinha et al, 2008). Commercial PET melts between 255 and 265 ⁰C, while more crystalline PET melts at 265 ⁰C.…”

Section: Pet: Synthesis and Propertiesmentioning

confidence: 99%

Recent Developments in the Chemical Recycling of PET

Bartolome¹,

Imran²,

Cho³

et al. 2012

Material Recycling - Trends and Perspectives

116

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Section: Pet: Synthesis and Propertiesmentioning

confidence: 99%

Recent Developments in the Chemical Recycling of PET

Bartolome¹,

Imran²,

Cho³

et al. 2012

Material Recycling - Trends and Perspectives

116

View full text Add to dashboard Cite

“…Since life cycle assessment studies showed that re-utilization of PET has a positive effect on energy balance and the reduction of CO 2 emissions, for ecological reasons, the need of an appropriate PET-recycling is greater than ever [3][4][5][6][7]. Thus, several PET-recycling methods have been developed, which were partially reviewed in the literature [8][9][10][11][12][13][14][15]. One of these methods is the incineration of the PETwaste using the released heat of combustion (direct energy recovery), which amounts to about 46 MJ·kg -1 [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, several PET-recycling methods have been developed, which were partially reviewed in the literature [8][9][10][11][12][13][14][15]. One of these methods is the incineration of the PETwaste using the released heat of combustion (direct energy recovery), which amounts to about 46 MJ·kg -1 [13,14]. Another method, the pyrolysis of the PETwaste is applied to produce a substitute of coal (carbonization) or aromatic and aliphatic compounds as an alternative for fossil fuels (indirect energy recovery).…”

Section: Introductionmentioning

confidence: 99%

Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods

Geyer¹,

Lorenz²,

Kandelbauer³

2016

Express Polym. Lett.

204

120

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Abstract.Recycling of poly(ethylene terephthalate) (PET) is of crucial importance, since worldwide amounts of PETwaste increase rapidly due to its widespread applications. Hence, several methods have been developed, like energetic, material, thermo-mechanical and chemical recycling of PET. Most frequently, PET-waste is incinerated for energy recovery, used as additive in concrete composites or glycolysed to yield mixtures of monomers and undefined oligomers. While energetic and thermo-mechanical recycling entail downcycling of the material, chemical recycling requires considerable amounts of chemicals and demanding processing steps entailing toxic and ecological issues. This review provides a thorough survey of PET-recycling including energetic, material, thermo-mechanical and chemical methods. It focuses on chemical methods describing important reaction parameters and yields of obtained reaction products. While most methods yield monomers, only a few yield undefined low molecular weight oligomers for impaired applications (dispersants or plasticizers). Further, the present work presents an alternative chemical recycling method of PET in comparison to existing chemical methods.

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“…1 The persistence of plastic polymers such as aliphatic polymers in the environment is attributed to the lack of enzymes capable of degrading their rigid structures and can be even more pronounced in the case of aromatic polymers. 2,3 Polyethylene terephthalate (PET) is an aromatic polyester widely used to make beverage bottles, films and textile fibers, owing to its excellent mechanical strength, high chemical resistance and low gas permeability.…”

Section: Introductionmentioning

confidence: 99%

A Practical Fluorescence-Based Screening Protocol for Polyethylene Terephthalate Degrading Microorganisms

Chaves¹,

Lima²,

Malafatti-Picca³

et al. 2017

J. Braz. Chem. Soc.

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We propose a practical, low-cost and selective fluorescence-based protocol adapted to identify polyethylene terephthalate (PET) degrading microorganisms. The microbial hydrolysis of PET nanoparticles was monitored by 2-hydroxyterephthalate, a fluorophore produced in situ after radical hydroxylation of terephthalic acid (TPA), the final hydrolysis product, by the Fenton reaction. Seven fungi presenting promising PET hydrolytic potential using the proposed microscale screening assay were identified. The strains evaluated presented a substantial increase of up to 18-fold in PET nanoparticles conversion, such as obtained by the fungus Trichoderma sp. C70, after their cultivation in a PET-enriched medium. The formation of other hydrolysis products, along with TPA, was observed using matrix assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS).

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Pet Waste Management by Chemical Recycling: A Review

Cited by 665 publications

References 65 publications

Recent Developments in the Chemical Recycling of PET

Recent Developments in the Chemical Recycling of PET

Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods

A Practical Fluorescence-Based Screening Protocol for Polyethylene Terephthalate Degrading Microorganisms

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