| 1. |
- Albertsson, Gustav Sandin, et al.
(författare)
-
Tillgång på skogsråvara – sammanfattning och scenarier
- 2019
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Denna förstudie sammanställer kunskap om tillgången på skogsråvara som skulle kunna utgöra råvarubas i ny produktion av kemikalier, material och bränslen i Västsverige. Resultatet indikerar att det med rätt förutsättningar finns goda möjligheter att öka uttaget av flera fraktioner av skogsråvara, exempelvis GROT, i tillräcklig omfattning för att de ska utgöra en relevant, framtida råvarubas. Resultatet synliggör också de osäkerheter som finns på grund av de många faktorer som påverkar framtida tillgång, t.ex. klimatförändringar, politiska beslut och konkurrens om råvaran.
|
|
| 2. |
- Bjorn, A., et al.
(författare)
-
Review of life-cycle based methods for absolute environmental sustainability assessment and their applications
- 2020
-
Ingår i: Environmental Research Letters. - : IOP Publishing Ltd. - 1748-9326 .- 1748-9318. ; 15:8
-
Tidskriftsartikel (refereegranskat)abstract
- In many regions and at the planetary scale, human pressures on the environment exceed levels that natural systems can sustain. These pressures are caused by networks of human activities, which often extend across countries and continents due to global trade. This has led to an increasing requirement for methods that enable absolute environmental sustainability assessment (AESA) of anthropogenic systems and which have a basis in life cycle assessment (LCA). Such methods enable the comparison of environmental impacts of products, companies, nations, etc, with an assigned share of environmental carrying capacity for various impact categories. This study is the first systematic review of LCA-based AESA methods and their applications. After developing a framework for LCA-based AESA methods, we identified 45 relevant studies through an initial survey, database searches and citation analysis. We characterized these studies according to their intended application, impact categories, basis of carrying capacity estimates, spatial differentiation of environmental model and principles for assigning carrying capacity. We then characterized all method applications and synthesized their results. Based on this assessment, we present recommendations to practitioners on the selection and use of existing LCA-based AESA methods, as well as ways to perform assessments and communicate results to decision-makers. Furthermore, we identify future research priorities intended to extend coverage of all components of the proposed method framework, improve modeling and increase the applicability of methods. © 2020 The Author(s).
|
|
| 3. |
- Bolinius, Dämien Johann, et al.
(författare)
-
Siptex Swedish Innovation Platform for Textile Sorting - A summary report from the final stage of the project
- 2022
-
Rapport (refereegranskat)abstract
- Siptex, Swedish Innovation Platform for Textile Sorting, is the name of a research project and the name of the world’s first industrial-scale textile sorting plant.The aim of the Siptex project was to create conditions for high-quality textile recycling through the establishment of automated textile sorting.The Siptex plant, built during the project, uses near-infrared and visual spectroscopy (NIR/VIS) to sort textile waste in terms of fibre composition and colour.
|
|
| 4. |
- Ekvall, Tomas, et al.
(författare)
-
Modeling recycling in life cycle assessment
- 2020
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The method for modeling material recycling can have a decisive impact on the environmental assessment of products if they have a high content of recycled material or if they are recycled after use. The recent EU guideline on Product Environmental Footprint includes a rather complex approach. In response to this, the Swedish Life Cycle Center gathered companies, researchers and authorities in this project aiming to collect and disseminate knowledge on existing approaches to allocation at open-loop recycling, to systematically assess these methods, test them in case studies, and to investigate to what extent consensus can be reached among the Swedish actors on how recycling should be modelled in an LCA. Information on twelve existing approaches is collected through a literature survey covering international standards, important guidelines and a selection of scientific papers. They are assessed with a set of indicators developed based on the view that methods for environmental systems analysis are good to the extent that they can be assumed to contribute to reduced environmental impacts or, at least, to reduced environmental impacts per functional unit. After case-studies and a debate, we present an application-dependent structure for requirements on the methods for modelling recycling in life cycle assessments.
|
|
| 5. |
- Lidfeldt, Matilda, et al.
(författare)
-
Siptex WP5 report: Life cycle assessment of textile recycling products
- 2022
-
Rapport (refereegranskat)abstract
- This report presents a life cycle assessment (LCA) of recycling products from the automated textile-sorting plant Siptex in Malmö, Sweden.The recycling products are sorted fractions of cotton, polyester, and wool. The LCA aims to increase knowledge of the environmental performance of the Siptex plant, in terms of reducing the incineration of textile waste and providing a new source of material to the textile industry.The three recycling products are assessed by studying four garments made of the recycling products and comparing these to garments made of primary material.
|
|
| 6. |
- Sandin Albertsson, Gustav, et al.
(författare)
-
Does large-scale textile recycling in Europe reduce climate impact? : consequential life cycle assessment
- 2023
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Through an LCA that systematically considers uncertainties, we found a 92% probability that large-scale textile recycling in the EU reduces climate impact. The reduction is just over 1% of textile products' climate impact, so other measures are needed to tackle the climate challenge of textiles.A sensitivity analysis shows what needs to be accounted for to ensure a reduced climate impact, e.g., recycling with low climate impact and a high replacement of the production of primary fibers.
|
|
| 7. |
- Sandin Albertsson, Gustav, et al.
(författare)
-
Life cycle assessment of mechanical textile recycling in Sweden
- 2024
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report presents a screening life cycle assessment (LCA) of a potential, future mechanical textile recycling system located in Sweden. The report is based on rough assumptions, data estimates and scenarios exploring the influence of uncertainties regarding, for example, the location of the recycling plant (influencing the transport distances), the need for constructing new infrastructure for the recycling plant, the need to sort the incoming feedstock, the electricity mix used at the recycling plant, and fuel type used in transports. The main conclusions of the report are as follows:1. The results, in terms of climate impact, energy demand, and fossil resource use, for mechanically recycled fibres, are in the lower range, or about an order of magnitude lower, compared to the results of production of primary fibres. Although the results of this kind of screening LCA of a future production system are inherently uncertain, the results strongly indicate that establishing mechanical recycling of textiles in Sweden has a high potential to contribute to reduced environmental impact in the textile sector. 2. As mechanically recycled fibres often rely on blending with a substantial share of primary fibres in yarn spinning, the environmental impact of the final yarn will depend on the environmental impact of the primary fibres used for blending.3. The studied uncertainties substantially influence the environmental impact of the recycled fibres. These uncertainties regards the location of the recycling plant (influencing the transport distances), the need to build new infrastructure for the recycling plant, the need to sort incoming feedstock, the electricity mix used at the recycling plant, and the fuel type used in transports of materials to and from the recycling plant. These parameters are important to consider when developing, designing, and operating a mechanical recycling plant in Sweden. But even with relatively long transportation distances, new infrastructure, (manual and automatic) pre-sorting, mostly fossil fuels used in transports and an electricity mix with high climate impact, the environmental impact of the mechanically recycled fibres are in the lower range of, or substantially lower than, the environmental impact of most primary fibres.4. The fact that mechanical recycling in Sweden is expected to be powered by an electricity grid mix with relatively low climate impact makes a big difference in terms of the climate impact. A location in a region with a grid mix with higher climate impact, such as the (current) European grid mix, would increase the climate impact of the recycled fibres with about 200 kg CO2 eq. per t fibres – which would still result in fibres with low climate impact compared to most primary fibres.5. The sensitivity analysis, based on a Monte Carlo analysis, showed that the climate impact results are relatively stable with regard to the distance for the transports to and from the recycling plant, the amount of electricity used in the recycling plant, and the material loss at the recycling plant. Although these are important parameters to keep track of to ensure as low climate impact as possible, they seem not to be critical for the climate-impact viability of the recycled fibres.The present report is based on likely circumstances and technologies available today. Potential future changes are not accounted for. Furthermore, the impact categories selected for this study relate to energy-related issues – climate impact and resource constraints – as these are expected to be the main issues of mechanical textile recycling. There are other impacts that are also important, especially when discussing the environmental impact of mechanically recycled fibres in comparison to primary biobased fibres such as – for example water deprivation and impacts on land use.The LCA was conducted within the BioInnovation project “Mechanical textile recycling – Roadmap for Swedish processing capacity” and considered data and scenarios on business cases on mechanical textile recycling developed within the project. The LCA and its results were intended primarily for internal project work, but the work is made public in this report as the results may also be relevant for external actors interested in developing or investing in a future textile recycling plant within or outside of Sweden.
|
|
