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Comparative gate-to-gate life cycle assessment for the alkali and acid pre-treatment step in the chemical recycling of waste cotton

Rosson, Lucas and Byrne, Nolene 2020, Comparative gate-to-gate life cycle assessment for the alkali and acid pre-treatment step in the chemical recycling of waste cotton, Sustainability, vol. 12, no. 20, Special Issue: Life Cycle Assessment in Materials Engineering and Sustainability, pp. 1-15, doi: 10.3390/su12208613.

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Title Comparative gate-to-gate life cycle assessment for the alkali and acid pre-treatment step in the chemical recycling of waste cotton
Author(s) Rosson, Lucas
Byrne, NoleneORCID iD for Byrne, Nolene orcid.org/0000-0002-9474-7644
Journal name Sustainability
Volume number 12
Issue number 20
Season Special Issue: Life Cycle Assessment in Materials Engineering and Sustainability
Article ID 8613
Start page 1
End page 15
Total pages 15
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2020
ISSN 2071-1050
Keyword(s) comparative life-cycle assessment
green chemistry
textile waste
cellulose pre-treatment
textile dyes
Science & Technology
Life Sciences & Biomedicine
Green & Sustainable Science & Technology
Environmental Sciences
Environmental Studies
Science & Technology - Other Topics
Environmental Sciences & Ecology
ENVIRONMENTAL-IMPACT
CARBON-DISULFIDE
CITRIC-ACID
EMISSIONS
FIBERS
ENERGY
PLANTS
PULP
Summary The development of textile recycling solutions is an area of intense research and commercialization. Chemical recycling solutions are becoming increasingly popular due to their ability to separate complex blends and retain or improve the value of the original fiber. The chemical recycling of cotton requires a pre-treatment step to reduce the degree of polymerization (DP). The DP can be reduced in a variety of ways, and here, the environmental footprints of two different pre-treatment approaches are examined using life cycle assessment (LCA); sodium hydroxide pre-treatment and sulphuric acid pre-treatment. We find that the acid pre-treatment has a significantly lower environmental footprint across all impact categories calculated. This is attributed to the lower treatment times required and the lower material and energy requirements for the manufacture of chemicals. The results were normalized to show the most significant impact categories for each pre-treatment, and further environmental implications of the pre-treatments are discussed. The findings will aid academia and industry in implementing the most environmentally benign processes in chemical cotton recycling.
Language eng
DOI 10.3390/su12208613
Indigenous content off
Field of Research 12 Built Environment and Design
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID Australian Government Research Training Program Scholarship
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30146011

Document type: Journal Article
Collections: Institute for Frontier Materials
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GTP Research
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.