Volgens een recente publicatie van Wageningen University & Research (WUR) is de uitdaging voor de komende jaren om “…verwaardingsketens op te zetten die ingericht zijn op het volledig benutten van biomassa uit de glastuinbouw. Er kan namelijk ontzettend veel uit biomassa gehaald worden: zouten voor meststoffen, organische stof of biostimulanten voor substraat, vezels voor verpakkingen en bouwmateriaal, eiwitten voor (vee) voer, geur en kleurstoffen voor de cosmetische industrie en medicinale stoffen voor de farmaceutische industrie. Er is onderzoek nodig om te bepalen welke plantreststromen geschikt zijn voor welke toepassingen en hoe de knelpunten kunnen worden weggenomen. Daarnaast is het net zo belangrijk om telers en ondernemers uit de proces- en verwerkingsindustrie te ondersteunen in het gezamenlijk opzetten van deze nieuwe verwaardingsketens en business cases.”(Wageningen University & Research, 2023). In lijn met deze aanbevelingen heeft de werkgroep Lijn D van het SPRONG project “Living Ecosystem” tijdens een bijeenkomst d.d. 21 September 2023 de inhoudsstoffen van de zijstromen van de tomatenteelt in de regio Zeeland, Zuid Holland, N-W Brabant geselecteerd als case studie voor ongebruikte inhoudsstoffen. Zie Bijlage 1 voor meer informatie over deze werkgroep. Waarom de zijstromen van de tomaat? Nederland heeft ruim 1.700 hectare aan tomatenteeltgrond en kent een jaarlijkse productie van 815 miljoen kilogram tomaten. Er is jaarlijks voor 73.848 ton groenafval uit de tomatenteelt. In de huidige situatie wordt restafval uit de tuinbouw voornamelijk gecomposteerd of vergist. Bij dit proces komen de broeikasgassen lachgas en methaan vrij. Het afvoeren van natte loof kost de teler nu tussen de €35,00 en €42,50 per ton, afhankelijk van de hoeveelheid afval tussen het loof (De Natuurverdubbelaars, 2023). Bij compostering worden de plantenresten afgebroken, waarbij broeikasgassen vrijkomen die schadelijker zijn dan CO2. Ook worden tomaten afgekeurd als ze tijdens het oogsten op de grond vallen of omwille van esthetische gebreken (bijvoorbeeld te klein). De zijstromen en overschotten bevatten echter nog een breed scala plantenstoffen die interessant kunnen zijn voor diverse toepassingen in materialen, farmacie, cosmetica, kleur-, geur- en smaakstoffen, gewasbescherming en papier (Kenniscentrum Plantenstoffen, 2014). Daarom is het noodzakelijk om een nieuw segment binnen de toeleveringsketen te introduceren dat voorziet in een rationeel gebruik van bijproducten. Dit is tevens interessant voor de onderzoeksgroepen binnen de HZ, de HR en Avans. Een grote uitdaging binnen deze casestudie is het gebruik van plastic voor de tomatenteelt, en de daarmee vervuilde reststromen. Dit rapport is een verkenning van de mogelijke toepassingen en betrokken partijen in met name Nederland, en tevens een verslag van een workshop met de relevante stakeholders. Het rapport dient als input voor de ontwikkeling van onderzoeksprojecten door de bij Living Ecosystem betrokken hogescholen Avans, Hogeschool Rotterdam, en HZ University of Applied Sciences.
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VHL University of Applied Sciences (VHL) is a sustainable University of AppliedSciences that trains students to be ambitious, innovative professionals andcarries out applied research to make a significant contribution to asustainable world. Together with partners from the field, they contribute to innovative and sustainable developments through research and knowledge valorisation. Their focus is on circular agriculture, water, healthy food & nutrition, soil and biodiversity – themes that are developed within research lines in the variousapplied research groups. These themes address the challenges that are part ofthe international sustainability agenda for 2030: the sustainable developmentgoals (SDGs). This booklet contains fascinating and representative examplesof projects – completed or ongoing, from home and abroad – that are linked tothe SDGs. The project results contribute not only to the SDGs but to their teaching as well.
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Agricultural by-products, that is primary residue, industrial by-products and animal manure, are an important source of nutrients and carbon for maintaining soil quality and crop production but can also be valorised through treatment pathways such as fermentation, incineration or a combination of these called bio-refinery. Here, we provide an overview of opportunity to reduce environmental impact of valorising agricultural by-products. We estimate the available by-products in Northwestern Europe as a case study and the maximum and realistic greenhouse gas reduction potentials. Availability, collectability, the original use and environmental impact including land use changes, soil carbon sequestration and pollution swapping are discussed as critical factors when valorising agricultural by-products.
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Wood is an increasingly demanded renewable resource and an important raw material for construction and materials. Demands are rising, with a growing attention for re-use and upcycling, opening up opportunities for new business models, empowered by the use of digital design and technologies. A KPI framework was developed to evaluate the environmental, social, and economic aspects of using recycled wood in robotic manufacturing. This paper explores the use of this framework, focusing on a case study: the "One Plank" Challenge. The study reveals that environmental gains from using waste wood are comparable to production burdens, with significant variation depending on wood type. Production time, encompassing both human and robotic aspects, significantly impacts cost-effectiveness. The findings underscore the importance of considering lifecycle impacts in promoting sustainable robotic manufacturing practices.
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This document combines four reports on existing regional business support programmes for inclusion or understanding of circular economy (CE) objectives, deliverable DT3.1.2 from the transform-CE project. Besides a general overview on national and regional level, the focus is on a selection of national and regional programmes aimed at the plastics industry. After explaining the format to structure the programmes, the results for the four regions are presented: Greater Manchester (UK), Rhineland Palatinate and North-Rhine Westphalia (DE), Wallonia (BE), Central Netherlands (NL).
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This quick guide is written to inspire designers, policy makers, company owners, employees, educators and students to change the linear economy into a circular economy by collaborating in local value chains. This guide explains the basics of circular economy, value chains and it gives practical tips for you to work with and practical examples to learn from. It is developed within the context of the Biocup project, part of the BIOCAS Interreg project supported by the North Sea Programme of the European Regional Development Fund of the European Union.
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This first publication of the CBCI project (Circular Bio-based Construction Industry) is a practical guide aimed at real estate professionals, (public) property owners and developers. This White Paper will discuss some of the challenges surrounding bio-based and circularity such as; price competition from virgin material alternatives, confidence in quality, hazardous material substance (when reusing in a circular context), lack of existing building data as well as the time delay between building and deconstruction. Next to this, the White Paper aims to illustrate how one could be more successful at taking circular and bio-based construction initiatives. The learnings from interviews and desk research are put together in five essentials, which are explained and illustrated by insights, exemplary projects (case studies) and readily applicable solutions. These five essentials form the outline of this White Paper: 1. AFFORDABLE cost-effective & inclusive reuse, 2. FLEXIBLE prepare for future functions, 3. PASSIVE stay cool & healthy with bio-based materials, 4. INTEGRAL continuously reflect on circular bio-based benefits & 5. TRADITIONAL OWNERSHIP keep it, simple. The thirteen exemplary cases explored for the creation of this White Paper show that it is possible to adopt circular and bio-based construction initiatives. However, it is not always easy and requires perseverance as well as leadership. Therefore, the five essentials and cases in this white paper can be used as inspiration and could help real estate professionals, property owners, developers and other interested parties in the construction sector to realise affordable and feasible circular bio-based constructions. By focusing on the essentials, one could prevent valuable resources (including energy) going to waste, today and in the future.
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The cloud has become an essential part of our daily lives. We use it to store our documents (Dropbox), to stream our music and films (Spotify and Netflix) and without giving it any thought, we use it to work on documents in the cloud (Google Docs).
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Upcycling has been embraced by circular economy enthusiasts, policy-makers and collaborative initiatives across Europe. Early studies describe upcycling as a concept aimed at resource conservation by keeping products, components and materials at their highest potential value across consecutive product lifecycles, with zero-negative or even potential positive impact on the natural environment. Similarly, more recent literature on the circular economy views upcycling as a strategy to slow and close resource cycles through product life-extension approaches, such as reuse, repair, refurbishment, remanufacturing and repurpose. With growing environmental concerns, upcycling has become a re-emerging theme in literature and practice. Cities offer opportunities for an increasing number of upcycling initiatives, but little is known about what manifestations of upcycling occur specifically in urban areas or how these urban upcycling initiatives emerge. For example, so-called Urban Resource Centers seek to tackle challenges in urban solid waste management by encouraging entrepreneurs to create value from local waste streams. Therefore, our objective is to address this literature gap and explore manifestations of upcycling in a city context by means of qualitative research, following a case-study approach based on data collected from research archives and 17 preliminary interviews with entrepreneurs and experts in urban upcycling of furniture and interior design products. This study contributes to a structured overview of urban upcycling initiatives and the internal and external factors that drive entrepreneurial initiatives and development. Future work will build on this study to make urban upcycling initiatives more widespread and impactful to deliver on their environmental and social goals.
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