University of Oulu

Linn Berglund, Leo Breedveld, Kristiina Oksman, Toward eco-efficient production of natural nanofibers from industrial residue: Eco-design and quality assessment, Journal of Cleaner Production, Volume 255, 2020, 120274, ISSN 0959-6526, https://doi.org/10.1016/j.jclepro.2020.120274

Toward eco-efficient production of natural nanofibers from industrial residue : eco-design and quality assessment

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Author: Berglund, Linn1; Breedveld, Leo2; Oksman, Kristiina1,3,4
Organizations: 1Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, 97187, Sweden
22B Srl, via della Chiesa Campocroce 4, Mogliano Veneto, 31021, Italy
3Fibre and Particle Engineering, University of Oulu, Oulu, FI90014, Finland
4Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S3G8, Canada
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2020051435627
Language: English
Published: Elsevier, 2020
Publish Date: 2022-01-27
Description:

Abstract

Conversion of bio-based industrial residues into high value-added products such as natural nanofibers is advantageous from an environmental and economic perspective, promoting resource efficiency along with the utilization of renewable materials. However, in order to employ the benefits of the raw material; its eco-efficient production should further be developed. Within this context, eco-design optimization through life cycle assessment (LCA) combined with life cycle costing (LCC) were applied to target eco-efficient production of natural nanofibers from carrot residue, along with quality assessment. The initial production steps included pretreatment combined mechanical nanofibrillation via ultrafine grinding, where the largest contributors to the environmental impact were identified as chemicals and energy. These were targeted by omitting the alkali pretreatment step and instead applying direct bleaching prior to nanofibrillation. After eco-design optimization, the yield increased while the energy, chemical, and water use significantly decreased. Therefore, a reduced environmental impact of more than 75% each for carbon footprint, freshwater ecotoxicity, and human toxicity was shown, along with a cost reduction of more than 50%. The use of carrot residue displayed an efficient conversion into natural nanofibers that was further promoted with the use of eco-design, yet with sustained functionality and nanoscaled dimensions, thus promoting resource-efficiency and natural nanofiber implementation in a wide range of promising bio-based applications.

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Series: Journal of cleaner production
ISSN: 0959-6526
ISSN-E: 1879-1786
ISSN-L: 0959-6526
Volume: 255
Article number: 120274
DOI: 10.1016/j.jclepro.2020.120274
OADOI: https://oadoi.org/10.1016/j.jclepro.2020.120274
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Funding: This work was supported by the European Union under INCOM EC FP7 [grant number 608746] and Bio4Energy, which is a strategic research environment appointed by the Swedish government.
Copyright information: © 2020 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
  https://creativecommons.org/licenses/by-nc-nd/4.0/