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Puzzle cell nutshell waste for sustainable material solutions

Project description

Sustainable material solutions from walnut shells

By 2025, an estimated 11 billion tonnes of plastic waste will have contaminated the environment. This underscores the critical importance of establishing a circular economy that utilises biotransformation and biodegradation techniques for oil-based plastics. Equally vital is the conversion of lignocellulosic waste biomass into commercially valuable green materials. The ERC-funded PUZZLE MATERIALS project aims to create sustainable materials through a process that involves dissolving walnut shells in a solvent to separate the cells and regenerate lignin. Bacterial cellulose pellicles will then be used to tailor the composite for various applications. The project envisions the development of sustainable, energy-efficient, resource-efficient, and biodegradable NUTmaterials with a low carbon and environmental footprint, specifically designed for the packaging and textile sectors.

Objective

In 2025 around 11 billion tonnes of plastic waste will pollute the environment. Therefore, a circular economy with biotransformation and biodegradation of oil-based plastics is as crucial as implementing biobased and biodegradable materials. Transforming lignocellulosic waste biomass into commercially valuable green materials is an emerging and promising way to minimize waste, substitute plastic and reduce our carbon footprint. As a waste resource, we suggest walnut shells, in which we discovered the interlocked 3-D puzzle cells. The homogeneity, the high surface area and the channels make these cells interesting for transformation into biodegradable bioplastic. We plan to dissolve the walnut shells in deep eutectic solvent to separate the cells, add water to regenerate lignin and recycle the solvent. The result of this closed process circle is a NUT slurry as a basis for our materials. To tailor and functionalize the composite for different applications we propose to add bacterial cellulose pellicles, a waste from kombucha fermentation or produced in bioreactors. The pure cellulose fibrils with high tensile strength are an exciting counterpart to the high lignin content pressure optimised puzzle cells. With different ratios of the two agri-residues we will tune the material properties for NUTplastic and NUTleather. Sustainable, energy and resource efficient, biodegradable NUTmaterials with a low carbon and environmental footprint are envisaged for the packaging and textile sector. The project activities comprise 1) development and characterisation of NUTleather and NUTplastic products at the demonstration level 2) life cycle analysis, cost of goods and carbon footprint, 3) define endusers, market analysis, potential industrial partner, buisness plan and IP strategy. We have a strong project team with highly motivated and experienced members with complimentary backgrounds and a solid wish to prove the puzzle cell performance in sustainable materials.

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Funding Scheme

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HORIZON-ERC-POC - HORIZON ERC Proof of Concept Grants

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Call for proposal

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(opens in new window) ERC-2022-POC2

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Host institution

UNIVERSITAET FUER BODENKULTUR WIEN
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 150 000,00
Address
GREGOR MENDEL STRASSE 33
1180 Wien
Austria

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Region
Ostösterreich Wien Wien
Activity type
Higher or Secondary Education Establishments
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Total cost

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Beneficiaries (1)

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