Circular Valorisation of Coastal and Marine Waste
CoastNutriCycle sets up a circular municipal system in Viimsi and Harku to collect, sort and valorise beach-cast algae, reed biomass and marine litter into compost and peat-free soil improver. Combining baseline assessment, pilot collection, composting trials and product development, the project will permanently remove nitrogen and phosphorus from the Baltic and create a replicable municipal model.
Coastal municipalities lack an integrated, scalable system for beach-cast biomass and marine litter. It is cleared for amenity then landfilled as mixed waste, causing emissions, disposal costs and continued nitrogen and phosphorus circulation in the Baltic. There is no coordinated collection, sorting or valorisation, and viable circular value chains barely exist in Estonia.
