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Title:Synergistic chemo-enzymatic hydrolysis of poly (ethylene terephthalate) from textile waste
Authors:Quartinello, Felice (Author)
Vajnhandl, Simona (Author)
Volmajer Valh, Julija (Author)
Farmer, Thomas (Author)
Vončina, Bojana (Author)
Lobnik, Aleksandra (Author)
Herrero Acero, Enrique (Author)
Pellis, Alessandro (Author)
Gübitz, Georg M. (Author)
Files:.pdf Microbial_Biotechnology_2017_Quartinello_et_al._Synergistic_chemo-enzymatic_hydrolysis_of_poly(ethylene_terephthalate)_from_textile_wast.pdf (304,48 KB)
MD5: AC1997C9EF15A7CAEFD0B67177A2E407
 
URL http://doi.wiley.com/10.1111/1751-7915.12734
 
Language:English
Work type:Scientific work (r2)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Due to the rising global environment protection awareness, recycling strategies that comply with the circular economy principles are needed. Polyesters are among the most used materials in the textile industry; therefore, achieving a complete poly(ethylene terephthalate) (PET) hydrolysis in an environmentally friendly way is a current challenge. In this work, a chemo-enzymatic treatment was developed to recover the PET building blocks, namely terephthalic acid (TA) and ethylene glycol. To monitor the monomer and oligomer content in solid samples, a Fourier-transformed Raman method was successfully developed. A shift of the free carboxylic groups (1632 cm$^{−1}$) of TA into the deprotonated state (1604 and 1398 cm$^{−1}$) was observed and bands at 1728 and 1398 cm$^{−1}$ were used to assess purity of TA after the chemo-enzymatic PET hydrolysis. The chemical treatment, performed under neutral conditions (T = 250 °C, P = 40 bar), led to conversion of PET into 85% TA and small oligomers. The latter were hydrolysed in a second step using the Humicola insolens cutinase (HiC) yielding 97% pure TA, therefore comparable with the commercial synthesis-grade TA (98%).
Keywords:textile waste, waste recycling
Year of publishing:2017
Number of pages:str. 1-8
Numbering:št. 6, Letn. 10
ISSN:1751-7915
UDC:628.4.042:677
ISSN on article:1751-7915
COBISS_ID:20615958 New window
DOI:10.1111/1751-7915.12734 New window
NUK URN:URN:SI:UM:DK:LTNBBBKP
Views:846
Downloads:271
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Categories:Misc.
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Record is a part of a journal

Title:Microbial Biotechnology
Shortened title:Microb. Biotechnol.
Publisher:Wiley-Blackwell
ISSN:1751-7915
COBISS.SI-ID:14597398 New window

Document is financed by a project

Funder:EC - European Commission
Funding Programme:H2020
Project no.:641942
Name:A new circular economy concept: from textile waste towards chemical and textile industries feedstock
Acronym:RESYNTEX

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:16.11.2017

Secondary language

Language:Slovenian
Keywords:tekstilni odpadki, recikliranje odpadkov


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