The Dutch government and leading academics in the field of circular economy propose that “repurposing”, i.e., finding new usages for discarded material, is important to reduce resource usage. Waste collectors, municipalities and start-ups increasingly find ways to develop circular business models, aiming for minimum loss of material integrity. Repurpose is a circular business model strategy which entails using a discarded product or its parts in a new product with a different function.The aim of this research is to gain a better understanding of this promising but academically underexposed circular strategy by empirically exploring its key characteristics and developing a taxonomy that reflects the scope and potential of the concept. The taxonomy development was based on clustering and comparing 96 case examples using key characteristics and critical factors empirically collected by means of 11 semi-structured expert interviews. The taxonomy was iteratively refined and validated by means of workshops with experts.This paper proposes a taxonomy and a comprehensive definition for repurposing. The Repurpose taxonomy distinguishes three main categories with increasing levels of material integrity: “Reprocess”, “Reshape” and “Recontextualize”. The taxonomy provides a refinement of existing circular business model patterns and frameworks for closing material loops strategies. It shows how repurposing may exploit the creative potential of design to fill the gap between reuse and recycling by retaining previously added value with three levels of physical adjustment.
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circular economy as a system change is gaining more attention, reusing materials and products is part of this, but an effective method for repurposing seems to be missing. Repurpose is a strategy which uses a discarded product or its parts in a new product with a different function. Literature on specific design methods for 'repurposing’ is limited and current design methods do not specifically address repurpose driven design. This paper aims to contribute to the literature on repurpose as a circularity strategy by evaluating repurpose driven design processes which are deployed in practice and evaluate to what extend existing design methods are suited for repurpose driven design. Building on a multiple case study two main design approaches are identified. First, a goal-oriented approach in which a client commissions the design studio. Second, a resource-oriented approach in which a discarded product or its components is the starting point of a design process initiated by the designers. Although both approaches follow a more or less standard design process, each intervenes with repurpose specific input at different phases in the design process, depending on the role of the designer. Results show that in order to be able to deal with the inconsistencies of discarded products, specific repurpose-related tools are required for an efficient and effective repurpose driven design process. Future research should address these issues in order to develop comprehensive and practical tools that accommodate the two repurpose driven design approaches.
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This PD project aims to gather new knowledge through artistic and participatory design research within neighbourhoods for possible ways of addressing and understanding the avoidance and numbness caused by feelings of vulnerability, discomfort and pain associated with eco-anxiety and chronic fear of environmental doom. The project will include artistic production and suitable forms of fieldwork. The objectives of the PD are to find answers to the practice problem of society which call for art that sensitises, makes aware and helps initiate behavioural change around the consequences of climate change. Rather than visualize future sea levels directly, it will seek to engage with climate change in a metaphorical and poetic way. Neither a doom nor an overly techno-optimistic scenario seem useful to understand the complexity of flood risk management or the dangers of flooding. By challenging both perspectives with artistic means, this research hopes to counter eco-anxiety and create a sense of open thought and susceptibility to new ideas, feelings and chains of thought. Animation and humour, are possible ingredients. The objective is to find and create multiple Dutch water stories, not just one. To achieve this, it is necessary to develop new methods for selecting and repurposing existing impactful stories and strong images. Citizens and students will be included to do so via fieldwork. In addition, archival materials will be used. Archives serve as a repository for memory recollection and reuse, selecting material from the audiovisual archive of the Institute of Sound & Vision will be a crucial part of the creative work which will include two films and accompanying music.
Verduurzaming van de chemische en landbouwsector is essentieel om klimaat- en circulaire doelstellingen te halen. Eén van de mogelijkheden om de chemische sector te vergroenen is om hernieuwbare grondstoffen als ‘feedstock’ voor productie te gebruiken. Biopolymeren die gemaakt worden uit hernieuwbare grondstoffen zijn een interessant groen alternatief voor fossiele plastics. Een veelbelovende groep ‘biobased plastics’ zijn polyhydroxyalkanoaten (PHA). PHAs worden door micro-organismen geproduceerd en kunnen verschillende samenstellingen hebben die de eigenschappen van dit materiaal beïnvloeden. Hierdoor zijn PHA's, blends van PHA en andere biobased materialen voor vele toepassingen geschikt te maken en derhalve een serieuze uitdager van fossiele plastics. Zodra deze biobased producten aan het einde van hun gebruikersfase komen, of als single-use materiaal in bijvoorbeeld de agrarische sector worden toegepast, is het belangrijk naast de mogelijkheden voor hergebruik en recycling inzicht te hebben in de snelheid en volledigheid van de biologische afbraak. In het voorgestelde KIEM-onderzoek wordt biologische afbraak middels industriële en kleinschalige compostering en in natuurlijke milieus bepaald. Onder verschillende omstandigheden, zoals in mariene, estuariene en zoetwatermilieus, en in verschillende bodemtypen zoals zand, klei en veenbodems wordt vastgesteld of effectieve afbraak plaatsvindt. Afbraak tot bouwstenen voor nieuwe polymeren of volledige mineralisatie, de snelheid daarvan en of mogelijk sprake is van vorming van microplastics wordt onderzocht. Stimuleren van biologische afbraak door bio-augmentatie wordt eveneens onderzocht. Een succesvol project draagt bij aan het verbeteren van de business case van zowel producenten van biobased polymeren (Paques Biomaterials) als van de maakindustrie die producten maken van deze groene ‘plastics’ (Maan Biobased Products; Happy Cups). Het projectresultaat geeft aanwijzingen over de impact die het onvermijdelijke PHA--zwerfafval zal hebben op het milieu en hoe deze impact zich verhoudt tot die van fossiel-gebaseerd zwerfplastic. Daarnaast vormt dit project ook de basis voor een nieuwe business case voor gecontroleerde end-of-life verwerkingsmethodieken.
Circularity represents an innovative approach to sustainability, aiming to transition from linear systems to cyclical ones by minimizing waste and optimizing resource utilization. Key to this concept is the repurposing of waste into valuable resources, which not only reduces environmental impact but also fosters innovation and produces further value. By utilizing their own waste, organizations can not only decrease their ecological footprint but also promote the development of materials with enhanced circularity thus mitigating environmental harm. Embracing circular practices provides a tangible pathway towards harmonizing human activities with the natural world, nurturing a regenerative global ecosystem. In a concerted effort to tackle biomass waste generated from JvEsch's operations, a strategic partnership with MNEXT is forged. This collaboration endeavours not only to replace unsustainable materials but also to enhance operational efficiency. Central to this initiative is a one-year research feasibility project which focuses on upcycling JvEsch’s biomass waste into valuable products for use in their business model. By examining JvEsch's waste streams, opportunities for the production of alternative materials were being explored. Among these materials, mycelium biocomposites (MBCs) emerge as a promising option for waste reduction and material innovation. The primary objective of this project is to explore the viability of manufacturing and utilizing MBC plant pots using JvEsch's waste. Unlike conventional pots, these innovative alternatives eliminate the need for removal before planting. Through replacing traditional plastic pots commonly used in the industry, the investigation aims to practically demonstrate the transformative potential of circularity in waste management and material production within an organization.
