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Environmental Prospects for Mixed Textile Recycling in Sweden
Chalmers University of Technology, Sweden.ORCID iD: 0000-0001-8319-168X
RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.ORCID iD: 0000-0002-3536-7895
RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.
2019 (English)In: ACS Sustainable Chemistry & Engineering, E-ISSN 2168-0485Article in journal (Refereed) Epub ahead of print
Abstract [en]

The production of cotton and other fibers causes excessive resource use and environmental impacts, and the deployment of these fibers in “fast fashion” is creating large masses of textile waste. Therefore, various industrial researchers are attempting to develop systems to recycle cellulosic materials. This is a challenging undertaking because of the need to handle mixed waste streams. Alkaline hydrolysis has been suggested as a useful textile recycling process, but its sustainability credentials have not been fully examined via life cycle assessment. The aim of this article is to provide such an examination and to guide process developers by scaling up results from recent laboratory work to a small-scale industrial facility. The results indicate that the recycling process is promising from an environmental point of view. The key issue controlling the relative environmental performance of the recycling system in comparison to a single-use benchmark is how the process for converting recovered cotton into a cellulosic fiber is performed. A fully integrated viscose production system or a system that makes one of the newer cellulosic fibers (e.g., lyocell) from the recovered cotton will improve the performance of the recycling system relative to its alternatives.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Life cycle assessment, LCA, Polycotton, Polyester, Cotton, Viscose, Lyocell, Chemical recycling, Fiber recycling, Fibre recycling, Alkaline hydrolysis, Textile recycling, Sustainability, Carbon footprint, Water footprint, Toxicity, Acidification, Eutrophication, Process development
Keywords [sv]
Livscykelanalys, LCA, Polyester, Bomull, Viskos, Lyocell, Kemisk återvinning, Fiberåtervinning, Textilåtervinning, Hållbarhet, Hållbarhetsanalys, Klimatpåverkan, Vattenbrist, Toxicitet, Försurning, Övergödning, Processutveckling
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:ri:diva-38988DOI: 10.1021/acssuschemeng.9b01742OAI: oai:DiVA.org:ri-38988DiVA, id: diva2:1323330
Projects
Mistra Future Fashion
Funder
Mistra - The Swedish Foundation for Strategic Environmental ResearchAvailable from: 2019-06-12 Created: 2019-06-12 Last updated: 2019-06-13Bibliographically approved

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Publisher's full texthttps://pubs.acs.org/doi/full/10.1021/acssuschemeng.9b01742

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Sandin, Gustav

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