Plastic is one of the biggest contributors to pollution of the planet. Due to the low recyclability of oil-based plastics, most plastic is being disposed into the environment. According to plastic oceans, 10 million tons of plastic are dumped into oceans annually. Currently, researchers are developing recycling methods for oil-based plastics and are looking for biobased alternatives. One of these alternatives are a class of polymers called polyhydroxyalkanoates (PHA’s). PHA’s differ from other biobased polymers, due to the process of fabrication. PHA’s are a natural polymer, acting as an energy and carbon storage for different strains of bacteria. Functioning as an energy storage, nature can break down PHA’s and PHA-based waste. (1) Different companies are working on PHA’s production, but a large deviations in physical properties were observed. This research aims to establish a relationship between the chemical and physical properties of the different PHA’s, using gel permeability chromatography (GPC), nuclear magnetic resonance (NMR) and gas chromatography-mass spectroscopy (GC-MS).
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Digital Twins of the Ocean (DTOs) are increasingly used in Maritime Spatial Planning (MSP), yet most remain limited to 2D representations and offer minimal stakeholder interactivity. These limitations reduce their effectiveness in capturing complex socio-ecological-technical dynamics and supporting exploratory what-if scenario planning in a 3D or 4D ocean space. This paper presents Immersive Ocean, a novel Virtual Twin platform developed within EU-ILIAD DTO initiative. Built with game engine and VR technologies, it supports procedural 3D world generation and interactive exploration in both desktop and immersive VR modes. Systematic performance validation demonstrated stable frame rates across both PC and VR platforms. Initial user evaluations (n=22) report high usability and engagement but also suggest areas for improvement in UI clarity and ecological model representation. These initial findings position Immersive Ocean as a promising Virtual Twin solution for an immersive, interactive, and data-integrated approach to MSP and ocean governance. Immersive Ocean is now being piloted with stakeholders in real-world MSP scenarios, including offshore wind farm planning.
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Marine spatial planning (MSP) was developed as a place-based, integrated marine governance approach to address sectoral and fragmented management issues and has seen significant evolvement over the past two decades. MSP has rapidly become the most commonly endorsed management regime for sustainable development in the marine environment, with initiatives being implemented across multiple regions of the globe. Despite its broad and growing acceptance and use, there are several key challenges that remain, both conceptual and practical, that are negatively impacting the realization of MSP’s potential. These include institutional shortcomings, the exclusion of stakeholders, a failure to account for the human and social dimensions of marine regions, the marginalization of different types of knowledge, and the growing need to adapt to global environmental change. Although studies have examined the emergence of MSP in different geographical and institutional contexts, there is a lack of comparative analysis of how initiatives are progressing and if the foundational aims of MSP are being achieved. There is a need to analyze the degree to which MSP initiatives are responding to the environmental challenges that they have been set up to tackle and, as marine plans are setting out long-term visions for marine management, to understand if current initiatives are fit for purpose. This article responds to these concerns and reviews the evolution of MSP within 12 regional ocean areas. We utilize the term regional ocean areas to illustrate the geographical spread of MSP, with examinations conducted of the approach to MSP that specific nations within each of the 12 chosen clusters have followed. By critically assessing how MSP is progressing, it is possible to shed light on the opportunities and challenges that are facing current initiatives. This can help to reveal learning lessons that can inform future MSP systems and guide initiatives along more sustainable pathways.
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Hogeschool Van Hall Larenstein (HVHL) kent een lange geschiedenis als groene kennisinstelling met een internationale oriëntatie. Zij ontleent het internationale karakter onder andere aan haar verleden als Internationale Agrarische Hogeschool Larenstein uit Velp. Veel internationale netwerken van HVHL liggen buiten Europa. De Europese Green Deal en diverse Europese Missies op het vlak van bodem, water, climate-neutral cities, en Oceans bieden echter veel kansen voor toegepast onderzoek in het groen-blauwe domein in Europa. HVHL heeft in het instellingsplan diverse doelen opgenomen die deelname aan de Pilot Richting Europa rechtvaardigen. Zoals het opzetten en uitvoeren van toegepast onderzoek binnen internationale consortia. Een duidelijke ‘Europastrategie’ ontbreekt echter nog. Een bredere internationaliseringsagenda wordt momenteel ontwikkeld binnen HVHL. In dit project willen wij een degelijke strategie voor internationaal (Europees) onderzoek ontwikkelen die in de internationaliseringsagenda kan worden opgenomen. Met hulp van de regeling SIA Pilot Richting Europa willen we Europese subsidies in kaart brengen, een helder overzicht creëren van Europese instituties en een duidelijke strategie voor toegepast onderzoek in Europa formuleren. Daarnaast zijn we voornemens om de supportinfrastructuur te verbeteren door medewerkers te trainen.
Nowadays, there is particular attention towards the recycling of waste materials which is a critical issue for environmental protection and waste management. Polymer materials have numerous applications in daily life products. As a result, plastic pollution has become one of the biggest threats to nature, therefore recycling or replacing them with bio-based materials can significantly help the ecosystems. So far, many studies have investigated the possibility of reusing plastic waste, as a second life, to obtain consumable products. The 3D printing market is one of the great sectors that can utilize a wide range of thermoplastic polymers. This technology provides a unique capability to produce complex shape structures and products that cannot be produced by other manufacturing processes. In particular, Fused Filament Fabrication (FFF) is a common printing technology that consumes thermoplastic filaments including recycled materials. This printing technique has been also very successful in using novel high-performance materials with sustainable aspects. The reSHAPE project aims to develop novel smart filaments, with shape memory properties, from recycled materials. The filaments can be applied for the design and fabrication of smart products with dynamic behavior. In particular, the fabricated parts can shift from a plastic-deformed shape into a recovered original shape when being triggered by an external stimulus, like temperature. For that, we will specifically apply recycled polylactic acid (PLA) and thermoplastic polyurethane (TPU) as the main materials in this study. Because they both have proper shape memory properties and also TPU can potentially enhance the material flexibility which is required in the design and fabrication of functional components. As a result, this study will obtain a proper combination of these materials with good printability and functionality that can be used for a wide range of products from the aerospace and automotive sectors to soft robotics and medical devices.
Polycotton textiles are fabrics made from cotton and polyester. It is used in many textile applications such as sporting cloths, nursery uniforms and bed sheets. As cotton and polyester are quite different in their polymer nature, polycotton textiles are hard to recycle and therefore mostly incinerated. Incineration of discarded polycotton, and substitution by virgin polycotton, create a significant environmental impact. However, textile manufacturers and brand owners will become obliged to apply recycled content in clothing from 2023 onwards. Therefore, the development of more sustainable recycling alternatives for the separation and purification of polycotton into its monomers and cellulose is vital. In a recently approved GoChem project, it has been shown that cotton can be separated from polyester successfully, using a chemical recycling process. The generated solution is a mixture of suspended and partially decolorized cotton (cellulose) and a liquid fraction produced from the depolymerization of the polyester (monomers). A necessary further step of this work is the investigation of possible separation methods to recover the cotton and purify the obtained polyester monomers into polymer-grade pure products suitable for repolymerization. Repolymerize is a new consortium, composed of the first project members, plus a separation and purification process group, to investigate efficient and high yield purification steps to recover these products. The project will focus on possible steps to separate the suspended fraction (cotton) and further recover of high purity ethylene glycol from the rest fraction (polyester depolymerization solution). The main objective is to create essential knowledge so the private partners can evaluate whether such process is technologically and economically feasible.