| 1. |
- Agnhage, Tove
(författare)
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Eco-designed functionalization of polyester fabric
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- There is an increased awareness of the textile dyeing and finishing sector’s high impact on the environment due to high water consumption, polluted wastewater, and inefficient use of energy. To reduce environmental impacts, researchers propose the use of dyes from natural sources. The purpose of using these is to impart new attributes to textiles without compromising on environmental sustainability. The attributes given to the textile can be color and/or other characteristics. A drawback however, is that the use of bio-sourced dyes is not free from environmental concerns. Thus, it becomes paramount to assess the environmental impacts from using them and improve the environmental profile, but studies on this topic are generally absent.The research presented in this thesis has included environmental impact assessment, using the life cycle assessment (LCA) tool, in the design process of a multifunctional polyester (PET) fabric using natural anthraquinones. By doing so an eco-design approach has been applied, with the intention to pave the way towards eco-sustainable bio-functionalization of textiles.The anthraquinones were obtained from the root extracts of the madder plant (Rubia tinctorum L.), referred to as madder dye. The research questions were therefore formulated related to the use of madder dye. Three research questions have been answered: (I) Can madder dye serve as a multifunctional species onto a PET woven fabric? (II) How does the environmental profile of the dyeing process of PET with madder dye look like, and how can it be improved? (III) What are the main challenges in using LCA to assess the environmental impacts of textile dyeing with plant-based dyes?It is concluded that there is a potential for the madder dye to serve as a multifunctional species onto PET. Based on the encouraging result, a recommendation for future work would be to focus on the durability of the functionalities presented and their improvement potential, both in exhaustion dyeing and pad-dyeing. LCA driven process optimization of the exhaustion dyeing enabled improvement in every impact category studied. However, several challenges have been identified which need to be overcome for the LCA to contribute to the sustainable use of multifunctional plant-based species in textile dyeing. The main challenges are the lack of available data at the research stage and the interdisciplinary nature of the research arena. It is envisaged that if these challenges are addressed, LCA can contribute towards sustainable bio-functionalization of textiles.
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| 2. |
- Baumann, Henrikke, 1964, et al.
(författare)
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Preface: Recognizing Management in LCM
- 2018
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Ingår i: International Journal of Life Cycle Assessment. - : Springer Science and Business Media LLC. - 1614-7502 .- 0948-3349. ; 23:7, s. 1351-1356
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The Life Cycle Management conference 2013 took place in Göteborg, Sweden in August that year. During some very sunny days, nearly 450 presentations took place in front of more than 600 conference goers, leading to uncountable numbers of meetings, conversations, and reflections. A group that brought together different facets of management and policy-making research in relation to LCM was created as conference special issue editors. The group identified a need for systematized descriptions and analyses of life cycle-related practices in industry and in society at large. Preferably, the research should be grounded in the social and management sciences. The intention with the special issue was advancing LCM research, with an emphasis on the 'M' for management. The special issue includes 7 papers developed from the conference presentations. The combination of life cycles and management enables many kinds of LCM research. Novel terminology and perspectives to LCM research introduced by the included papers convey some of this diversity. Studies with a product chain perspective to LCM offer a complementing contrast to the study of corporate LCM. Advancement of LCM research can thus be achieved by expanding from the company perspective towards, looking deeper into the interactions of multiple actors. Also, critical perspectives have been shown to be valuable for the legitimacy and credibility of LCA and its practitioners. These studies show how deeper studies in the social sciences offer paths for the further advancement of LCM.
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| 3. |
- Drielsma, Johannes A., et al.
(författare)
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Abiotic raw-materials in life cycle impact assessments: An emerging consensus across disciplines
- 2016
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Ingår i: Resources. - : MDPI. - 2079-9276. ; 5:1
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Tidskriftsartikel (refereegranskat)abstract
- This paper captures some of the emerging consensus points that came out of the workshop "Mineral Resources in Life Cycle Impact Assessment: Mapping the path forward", held at the Natural History Museum London on 14 October 2015: that current practices rely in many instances on obsolete data, often confuse resource depletion with impacts on resource availability, which can therefore provide inconsistent decision support and lead to misguided claims about environmental performance. Participants agreed it would be helpful to clarify which models estimate depletion and which estimate availability, so that results can be correctly reported in the most appropriate framework. Most participants suggested that resource availability will be more meaningfully addressed within a comprehensive Life Cycle Sustainability Assessment framework rather than limited to an environmental Life Cycle Assessment or Footprint. Presentations from each of the authors are available for download [1].
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| 4. |
- Valdivia, Sonia, et al.
(författare)
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A UNEP/SETAC approach towards a life cycle sustainability assessment—our contribution to Rio+20
- 2013
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Ingår i: International Journal of Life Cycle Assessment. - : Springer Science and Business Media LLC. - 1614-7502 .- 0948-3349. ; 18:9, s. 1673-1685
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Tidskriftsartikel (refereegranskat)abstract
- To contribute to the upcoming United Nations Conference on Sustainable Development (Rio+20) in 2012 by introducing a life cycle sustainability assessment (LCSA) and showing how it can play a crucial role in moving towards sustainable consumption and production. The publication, titled Towards a Life Cycle Sustainability Assessment, and published by the UNEP/SETAC Life Cycle Initiative aims to show how three life cycle techniques-(environmental) LCA, S-LCA and LCC-can be combined as part of an over-arching LCSA.The method was demonstrated by evaluating the characteristics of each phase for each life cycle technique. In defining the goal and scope of an LCSA, for example, different aspects should be taken into account to establish the aim of the study as well as the functional unit, system boundaries, impact category and allocation. Then, the data to be collected for the life cycle sustainability inventory can be either in a unit process or on an organisational level. They can also be quantitative or qualitative. Life cycle sustainability impact assessment should consider the relevance of the impacts as well as the perspective of stakeholders. The interpretation should not add up the results, but rather evaluate them jointly. In order to clarify the approach, a case study is presented to evaluate three types of marble according to the proposed method.The authors have identified that while LCSA is feasible, following areas need more development: data production and acquisition, methodological development, discussion about LCSA criteria (e.g. cutoff rules), definitions and formats of communication and dissemination of LCSA results and the expansion of research and applications combining (environmental) LCA, LCC and S-LCA. The authors also indicate that it is necessary to develop more examples and cases to improve user capacity to analyse the larger picture and therefore address the three dimensions or pillars of sustainability in a systematic way. Software and database providers are called for in order to facilitate user-friendly and accessible tools to promote LCSAs.The application demonstrated that, although methodological improvements are still needed, important steps towards an overarching sustainability assessment have been accomplished. LCSA is possible and should be pursued; however, more efforts should be made to improve the technique and facilitate the studies in order to contribute to a greener economy.
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