WalNUT aims to develop the necessary concepts and technological solutions to re-design the value and supply chains of nutrients from waste water and brine, while staying in line with the objectives of the EIP on Agrifood and Raw Materials. A wide range of technological processes (physico-chemical, electro-chemical, biological) will be validated in labscale. 5 pilot plants for the nutrient recovery from waste water and brine will be tailored by combining multiple process units selected from the pool of technologies studied at lab scale and from partners previous relevant projects. The pilot plants will target not only high nutrient recovery efficiencies but also minimisation of environmental impacts. Thorough quality assessment of the resulting products shall be made in order to establish a concrete view of their market positioning. The multicriteria evaluation of pilot plants performance as well as the use of LCA, LCC, sLCA, will lead to the efficient validation of the technologies reaching TRL 4-6. Also, the project aims to create and disseminate a new paradigm shift from waste water and brine treatment to resource recovery which is essential for EU to sustain industries and societies for the long-term. Public and scientific awareness of the project will be raised and all relevant stakeholders will be informed about the possible pathways for waste water and brine valorisation. The project will be implemented by a consortium composed of partners with varied and complimentary experience, qualifications, skills and perspectives including research institutes, technology providers and industrial partners involved in waste water management. The involvement of representatives covering the whole supply chain of waste water, brine and nutrient recovery will provide an excellent opportunity to showcase the full potential of waste water and brine as a raw material for biofertilisers production.

Agriculture and food industry having a high dependence on resources in their production and striving for long-term sustainability. In this context there is an urgent need to optimise resource use and smooth the transition to a knowledgedriven agriculture. The NUTRIMAN is a Nitrogen and Phosphorus thematic network compiling knowledge “ready for practice” for such recovered product applications, practices and technologies, interconnecting applied science and industrial practice, for the user interest and benefits of the agricultural practitioners. There is an urgent need to spread knowledge and network information towards agricultural practitioners about the insufficiently exploited N/P recovery innovative research results (technologies, products, practices). The project objective is to improve the exploitation of the N/P nutrient management/recovery potential for the ready for practice cases not sufficiently known by practitioners. Our action will open new opportunities for farmers to develop connections between applied researches with practical usefulness results and farming practice in the priority area of nutrient management and nutrient recovery. Uses a bottom-up approach to identify incentives and bottlenecks for adoption and to prioritise between technologies/products and will ensure larger willingness to adopt innovations and improve multiplicator effects. Large scale take up of the recovered N/P innovative fertilisers targeted, produced from un-exploited resources of organic or secondary raw materials in line with the circular economy model, and economical/environmental efficiently used by farmers. Effective dissemination and exploitation promoted by multilingual web platform, other communications and best practice field demonstrations for farmers. This action is contributing to the successful deployment of the vast reservoir of existing scientific/practical knowledge on the N/P recovery theme, including multi lingual abstracts in EIP-AGRI format.

NUTRI2CYCLE will use an integrated approach to enable the transition from the current (suboptimal) nutrient household in European agriculture to the next-generation of agronomic practices, characterized by an improved upcycling of nutrients and organic carbon. The project is deeply rooted in pevious national and European projects, in which the consortium members were actively involved. The underlying principle is that Nutrient Use Efficency can be significantly improved by integrating on-farm techniques and systems that allow better reconnection between 1) animal husbandry provided flows and 2) plant production requirements. At the same time this reconnection itself will serve a better C-return to soil and GHG-reduction by avoided emissions optionally combined with energy production for self-consumption on-farm. NUTRI2CYCLE aims to (i) benchmark mass flows of nutrients, organic carbon and GHG-footprint, (ii) provide an assessment frame (toolbox) for evaluating potential impact of proposed innovations, (iii) actively support concepts, techniques and scenarios put forward in EIP-Operational Groups, (iv) optimize these (+ in-consortium developed) scenarios using the toolbox, (v) showcase the most promising developments via prototypes and demos. Finally, using the experience gained at a local/regional scale, NUTRI2CYCLE will elaborate strategic scenarios to identify the effect of these innovations at European scale. NUTRI2CYCLE brings together the extensive expertise of leading experts in the field of nutrient cycling. This collaboration originates from the EIP-Focus Group on Nutrient Recycling, closely interacting with the EIP Operational Groups in the individual EU member states. Better nutrient stewardship engaging all actors across the value chain as envisaged in NUTRI2CYCLE will increase the C, N and P recycling rate significantly and will improve the overall sustainability and innovation capacity of European agricultural systems.

Waste4Soil envisions the development of 10 technological and methodological solutions for recycling food processing residues from the food industry into local, biobased circular soil improvers for improved soil health. A user-driven standardised Evaluation Framework will support stakeholders from the food value chain, including waste managers, to assess their status towards food processing residues circularity and take action for recycling suitable waste streams into beneficial soil improvers. To ensure co-innovation and collaborative research, Waste4Soil will setup 7 Soil Health Living Labs across Europe, in Greece, Finland, Spain, Poland, Hungary, Italy and Slovenia, to study the valorisation of 8 types of food processing residues (i.e., meat, fish, dairy, cereals, olive oil, beverages (wine), fruits and vegetables, and processed food). The project focuses on assessing and improving the effectiveness of existing routes of food waste management to soil improver components, formulation and application methods by focusing on: 1) Anaerobic digestion residues by employing novel nutrient separation including Selective Electrodialysis, bio-electrochemical and membrane systems 2) Novel efficient Biochar production from food processing wastes and digestates 3) BioPhosphate processing 4) Effective composting process of solid residues 5) Protein hydrolysates acting as soil improvers and AD-Microalgae combined processes for soil biostimulants and 6) An enabling management platform applied in all living labs, with a growing database of data analytics, route optimisation applications, soil health evaluations and application recipe’s, commercial aspects, and the capacity to use IoT devices in logistics. The 27 partners and 1 associated partner supporting this project proposal are forming a transdisciplinary partnership accross 10 European countries.