MEloDIZER implements high-performance membranes and modules in strategic applications of membrane distillation (MD), hence providing the decisive step for the success of MD. These core components are fabricated with a focus on feasible wide uptake and on sustainability, substituting harmful materials and protocols with >80% of benign solvents and relying on green chemistry principles. Both flat-sheets and innovative hollow-fibres are produced, striking the optimum between productivity and energy efficiency, as well as minimising fouling/wetting phenomena, also by applying novel sacrificial coatings while membranes are in situ. Optimised modules are developed with a focus on hydrodynamics and energy recovery improvements. These activities are strongly supported by sustained modelling tasks, conducted at different scales to (i) control the relationship between membrane properties and performance, (ii) customise module geometry, and (iii) increase system efficiency and automation. The membranes and modules are thus rationally installed as core components of four MD prototypes spanning three orders of magnitude of productivity. Two prototypes (2-5 m3/day, 0.5-2 m3/day) are demonstrated in industrial facilities (textile, beverage, chemical industries) to reuse wastewater (70-90%), thus reducing water footprint and approaching zero waste, as well as to recovery valuable nutrients as secondary raw materials from aquaculture wastewater. Two prototypes (50-100 L/day, 10-20 L/day) are demonstrated as low-cost, ready-to-use, passive, autonomous, decentralised units, delivering drinking water from saline and challenging sources at community and family level. All prototypes are run with 90-100% sustainable energy from waste heat and/or solar energy, with careful designs that maximise membrane and system performance. Quantitative, robust evaluations of market entry and environmental benefits act as input data for each innovation activity in MEloDIZER and to promote exploitation.

REWAISE will create a new “smart water ecosystem”, mobilising all relevant stakeholders to make society embrace the true value of water, reducing freshwater and energy use, resulting in a carbon free, sustainable hydrological cycle, to transition into a resilient circular economy. A network of nine living labs, involving 5 major water utilities, demonstrates real-life, large-scale operational environments for technological innovations and new governance methods to secure a resource-efficient water supply for the EU. New business niches will be created, incentivizing water-related investments, and accelerating SME growth, by linking users with specific water needs, incorporating life cycle and cost assessments, and collective action in new governance frameworks for smart value creation and high social returns. By incorporating paradigm shifts from a linear Roman heritage to a new circular, water-smart economy, REWAISE reveals the full Value of Water for Europe, considering 3 key components of the economic and societal value generated by integral water cycles: • Value in Water: is accomplished by extracting and putting to beneficial use dissolved substances such as nutrients, minerals, chemicals and metals, as well as organic matter and energy, embedded in raw and used water streams. • Value from Water: encompasses the economic activities inherent to the water cycle, related products and services that generate benefits and jobs, directly or in other sectors that depend on water, such as energy and transportation, • Value through Water: the societal, health and well-being functions of water, which will be enhanced by inter-linking users, regulators, water operators and other stakeholders in electricity and chemicals markets through a digital platform that optimizes decision making and business opportunities through socio-economics-based coordination between them, while minimizing emissions , risks and vulnerability.