This communication aims to provide a framework on how to integrate the concept of Circular Economy (CE) when addressing real-life urban challenges such as resource scarcity, greenhouse gas emissions, pollution, waste, and high consumerism (Williams, 2019), through delivery of courses to students of various educational backgrounds. As part of the mission of Amsterdam University of Applied Sciences (AUAS) to be at the forefront of promoting sustainability through education and research, the Faculties of Technology and of Business and Economics joined forces to launch a new minor namely Circular Amsterdam: Mission Zero Waste. This minor focuses on the challenges and opportunities towards the circular transition in Amsterdam as well as in other European cities, by applying system level of thinking and real-life practical cases.CE model is a shift from the traditional linear “take, make, and dispose” way of doing business, to promoting circularity of the waste product through the 3R principles (reduce, reuse, recycle), which is nowadays extended to using 9R principles (0-Refuse, 1-Rethink, 2-Reduce, 3-Reuse, 4-Repair, 5-Refurbish, 6-Remanufacture, 7-Repurpose, 8-Recycle, and 9-Recover) (Potting et al., 2017). Transitioning to CE model needs intervention and multidisciplinary approach at different levels, hence requiring systems level of thinking. This means that technical, organizational, economic, behavioral, and regulatory aspects should be taken into account when designing business models, policies, or framework on CE. In the case of the minor, a system change including the challenges and opportunities needed in the cities, will be approached from different perspectives. In order to do this, the minor requires collaboration on a real-life problem using multiple backgrounds of students that include technical, economic, creative and social domains, as well as various stakeholders such as businesses, policy makers, and experts in circular economy.This minor will provide in-depth knowledge and skills based on its two tracks. The first track is called Circular Design & Technology. It focuses on the role of technology in CE, technological design, material use, production, use of circular resources in production, and impact analysis. The second track is called Circular Governance & Management. This track focuses on viable business case development, circular supply chain management, finance, regulations, entrepreneurship, and human capital. The focus of this communication will be the second track.Multidisciplinary teams each consisting of approximately four students will work on different projects. Examples of real-world, practical cases related to Circular Governance & Management track include: (1) development of business models addressing resource shortages and waste in the cities, (2) influencing consumer mindset when it comes to recycling and use of circular materials and products, (3) development of financially viable circular businesses, with due consideration of different instruments such as traditional bank loans, green/social bonds and loans, crowdfunding, or impact investing, and (4) tracking and reporting their sustainability performance with the voluntary use of sustainability metrics and reporting standards in order to better manage their risk and attract capital. These projects are linked to research expertises in AUAS. The course activities include (guest) lectures, workshops, co-creation sessions, excursions, presentations and peer reviews. The learning goals in the Circular Governance & Management track include being able to:1. Understand the foundations of CE and theory of change;2. Apply systems thinking to show how different interventions, such as consumer products, logistics models, business models or policy designs, can affect the transition from the existing linear to a CE model;3. Design an intervention, such as a product, logistic concept, business model, communication strategy or policy design supporting the CE, using students‘ backgrounds, ambitions and interests;4. Understand the financial and regulatory framework affecting the management and governance of (financially viable) circular businesses, including government incentives;5. Evaluate the economic, environmental and social impacts of developed intervention design on the city and its environment;6. Provide justification of students‘ design according to sustainability performance indicators;7. Collaborate with stakeholders in a multidisciplinary team; and8. Present, defend and communicate the results in English.
Circularity and recycling are gaining increased attention, yet the amount of recycled plastic applied in new products remains low. To accelerate uptake by businesses, it will be useful to empirically investigate the main barriers and enablers that organisations experience when using recycled plastic feedstock for the production of new plastic products. In this research, categorisation is threefold: determining whether a certain factor acts as a barrier, enabler or both; identifying the steps in the value chain which the factor directly affects; and a categorisation in regulatory, economic, technical, systemic, organisational and cultural factors. Results from the focus group sessions show that main barriers seem to be: lack of clear policies and (stimulating) regulations, price differences between virgin and recycle materials, lower material quality and uncertainties about quality, availability and reliable stream of recyclate (from sufficient quality), lack of shortterm organisational goals, lack of knowledge, and lack of consumer demand and willingness. Comparing the results from a micro- and meso scale perspective, some factors are more important for certain steps in the value chain but may also (indirectly) influence the activities of others. Other factors affect all steps of the value chain. Moreover, the relevance of a factor may differ per actor depending on its positioning in the value chain and context, which comes along with uncertainties in industry. Further research may focus on extending literature review and address the needs of industry in order to increase uptake of recycled feedstock in new products.
Confronted by more and more global sustainabilityrelated challenges, society is increasingly aiming for a circular economy. Wouldn’t it be ideal if we could contribute to an economic model with closed loops, where products and materials that are at the end of their functional life are reused in new products and systems? As the Netherlands aims to have a fully circular economy (i.e., zero net waste) by 2050, circularity is also a critical theme for the Amsterdam Metropolitan Area. ‘Circular City’ is one of the main urban challenges of the Urban Technology research programme of the Amsterdam University of Applied Sciences (AUAS). Its chair of Circular Design & Business and its research group on Digital Production collaborate with companies, lecturers and students on a range of applied research projects in order to advance the knowledge around circular design and business model strategies making use of digital production to encourage the local reuse of discarded urban materials. Amsterdam ArenA, home base of the Ajax football team and a major concert and events venue, is replacing all stadium seats in the run-up to the European Football Championship in 2020 (UEFA Euro 2020), and wishes to do so in a socially responsible manner. With that purpose, Amsterdam ArenA engaged the expertise of the Urban Technology research programme at the AUAS to study the viability reusing the old seats in a circular manner. The research started from the assumption that these discarded seats not only form a large and relatively homogeneous waste stream, but also have an emotional value that can potentially raise their economic value, beyond that of the material alone. For the AUAS this was an important case study, because the Amsterdam ArenA aspires to be a stage for sustainable innovations, reduce its environmental impact and stimulate the local economy. This project could serve as an example for other stadiums and public buildings with substantial waste streams on how to handle discarded products, and rethink how they can prevent waste in the future. With this mission, the AUAS lined up a team of experts on circular design, digital production, business modelling and impact studies to carry out a comprehensive multi-disciplinary study.
MULTIFILE
The production of denim makes a significant contribution to the environmental impact of the textile industry. The use of mechanically recycled fibers is proven to lower this environmental impact. MUD jeans produce denim using a mixture of virgin and mechanically recycled fibers and has the goal to produce denim with 100% post-consumer textile by 2020. However, denim fabric with 100% mechanically recycled fibers has insufficient mechanical properties. The goal of this project is to investigate the possibilities to increase the content of recycled post-consumer textile fibers in denim products using innovative recycling process technologies.
Recycling of plastics plays an important role to reach a climate neutral industry. To come to a sustainable circular use of materials, it is important that recycled plastics can be used for comparable (or ugraded) applications as their original use. QuinLyte innovated a material that can reach this goal. SmartAgain® is a material that is obtained by recycling of high-barrier multilayer films and which maintains its properties after mechanical recycling. It opens the door for many applications, of which the production of a scoliosis brace is a typical example from the medical field. Scoliosis is a sideways curvature of the spine and wearing an orthopedic brace is the common non-invasive treatment to reduce the likelihood of spinal fusion surgery later. The traditional way to make such brace is inaccurate, messy, time- and money-consuming. Because of its nearly unlimited design freedom, 3D FDM-printing is regarded as the ultimate sustainable technique for producing such brace. From a materials point of view, SmartAgain® has the good fit with the mechanical property requirements of scoliosis braces. However, its fast crystallization rate often plays against the FDM-printing process, for example can cause poor layer-layer adhesion. Only when this problem is solved, a reliable brace which is strong, tough, and light weight could be printed via FDM-printing. Zuyd University of Applied Science has, in close collaboration with Maastricht University, built thorough knowledge on tuning crystallization kinetics with the temperature development during printing, resulting in printed products with improved layer-layer adhesion. Because of this knowledge and experience on developing materials for 3D printing, QuinLyte contacted Zuyd to develop a strategy for printing a wearable scoliosis brace of SmartAgain®. In the future a range of other tailor-made products can be envisioned. Thus, the project is in line with the GoChem-themes: raw materials from recycling, 3D printing and upcycling.
Dit voorstel betreft een onderzoek naar de verschillen in zuiverheid tussen virgin kunststof en post-industrial en post-consumer kunststof-reststromen in relatie tot de inzet van deze materialen bij 3D printen. Thermoplastische kunststoffen zijn in theorie goed te recyclen en opnieuw te gebruiken, bijvoorbeeld in een 3D print proces. In de praktijk blijkt het echter een uitdaging om gerecycled filament te produceren dat geschikt is voor de huidige machine-eisen. De oorsprong van dit project ligt in de gedachte om niet het materiaal aan te passen aan de machine, maar de machine aan het materiaal en hierdoor het gebruik van kunststofrecyclaat in 3D-printen te vergroten. Alvorens dit te kunnen, is meer inzicht in de materiaaleigenschappen nodig. Het doel van dit project is dan ook om de verschillende samenstellingen van kunststof-reststromen in kaart te brengen en hoe dit zich vertaald in mechanische en esthetische kwaliteit ten opzichte van virgin materiaal en wat dit vraagt aan aanpassingen aan 3D printers om deze kunststof-reststromen te kunnen verwerken. Dit onderzoek is een eerste fase in een groter onderzoeksproject. Volgende fasen zullen zich toespitsen op het optimaliseren van productietechnieken voor het printen met gerecycled kunststof en het ontwikkelen van mogelijke toepassingen en bijbehorende circulaire business modellen. Aanleiding voor dit onderzoeksvoorstel is tweeledig. Enerzijds de ervaring van Cre8 dat 3D printen relatief veel kunststof restmateriaal oplevert in de vorm van mislukte prints, proefprints en prototypes met korte levensduur. Passend bij hun duurzame bedrijfsprofiel heeft Cre8 de behoefte om hun eigen reststroom en reststromen uit hun omgeving in te zetten in het productieproces. Anderzijds ziet Refilment zich geconfronteerd met de complexe samenhang tussen de samenstelling van kunststof-reststromen en zijn verwerkingsmogelijkheden (bijvoorbeeld extruder-diameter en verwerkingstemperatuur).
