Abstract
Innovative approaches for recycling and upcycling of textile waste are required to sustainably treat the tremendous, discarded amounts. Due to their high specificity and mild reaction conditions, enzymes offer an environmentally friendly alternative for separation of blended materials. Glucose was recovered from cellulose (viscose) and polyamide blends and utilized as carbon source for biosynthesis of two biodegradable polymers. Polyhydroxybutyrate (PHB) was produced by Cupriavidus necator reaching an intracellular accumulation of 60 % (w/w) and 5.2 g/L of PHB from 20 g/L of glucose-rich hydrolysate. Bacterial cellulose (BC) was produced by Komagataeibacter sucrofermentans exhibiting equal properties to BC produced in standard media as confirmed by FTIR spectroscopy, SEM, and XRD. The recovered polyamide fibers were thermo-mechanically reprocessed and characterized by tensile testing showing comparable properties to virgin material. Thus, a combined bioconversion and mechanical reprocessing approach for textile waste is demonstrated allowing for recycling and valorization of each fraction of blended materials.
| Original language | English |
|---|---|
| Article number | 107712 |
| Journal | Resources, Conservation and Recycling |
| Volume | 208 |
| DOIs | |
| Publication status | Published - Sept 2024 |
Funding
Felice Quartinello reports financial support was provided by University of Natural Resources and Life Sciences Vienna.This project received funding from the European Union's Horizon 2020 program under the grant agreement 101003906 (SCIRT project) and the Spanish Ministry of Science, Innovation and Universities (MCIU/ AEI /10.13039/501100011033), under the research grant BIOCIR (PID2020-112766RB-C21). Furthermore, the authors would like to give special thanks to Novozymes (Denmark) for kindly supplying the enzymes and BASF for kindly providing virgin PA as reference material. Open access funding was provided by the University of Natural Resources and Life Sciences Vienna (BOKU). Additionally, the PhD project is supported by the Doctoral School Biomaterials and Biointerfaces (BioMatInt, BOKU). The authors would like to thank Laura L\u00F3pez-M\u00E9rida for technical support in routine analytics and data evaluation. Moreover, the authors want to thank the Christian Doppler Forschungsgesellschaft (CDG), for their funding of the \u201CJR Centre Recovery Strategies for Textiles\u201D facilitating this study. The research project was funded by the Austrian Federal Ministry of Labor and Economic Affairs and the National Foundation for Research, Technology and Development as well as the Christian Doppler Research Society. This project received funding from the European Union's Horizon 2020 program under the grant agreement 101003906 (SCIRT project) and the Spanish Ministry of Science, Innovation and Universities (MCIU/ AEI / 10.13039/501100011033 ), under the research grant BIOCIR ( PID2020-112766RB-C21 ). Furthermore, the authors would like to give special thanks to Novozymes (Denmark) for kindly supplying the enzymes and BASF for kindly providing virgin PA as reference material. Open access funding was provided by the University of Natural Resources and Life Sciences Vienna (BOKU) . Additionally, the PhD project is supported by the Doctoral School Biomaterials and Biointerfaces (BioMatInt, BOKU) . The authors would like to thank Laura L\u00F3pez-M\u00E9rida for technical support in routine analytics and data evaluation. Moreover, the authors want to thank the Christian Doppler Forschungsgesellschaft (CDG), for their funding of the \u201CJR Centre Recovery Strategies for Textiles \u201D facilitating this study. The research project was funded by the Austrian Federal Ministry of Labor and Economic Affairs and the National Foundation for Research, Technology and Development as well as the Christian Doppler Research Society.
Austrian Fields of Science 2012
- 104018 Polymer chemistry
- 211901 Waste prevention
Keywords
- Bacterial cellulose
- Enzymatic hydrolysis
- Mechanical characterization
- Polyhydroxybutyrate
- Textile waste recycling
- Viscose/polyamide blend
