Our technologies seek to reduce Nitrogen and Phosphorus emissions and close the nutrient cycle by returning high-quality inputs to the system as sustainable alternatives to synthetic fertilisers.
The project demonstrates, under real operating conditions, that nutrient recovery is technically, economically, and environmentally viable — offering scalable solutions that can be replicated across Europe.
Pig slurry, animal by-products, and crop residues are converted into renewable energy and organic fertilisers. The process combines anaerobic digestion, composting, and nitrification, with digestate granulation to produce safe fertilisers.
Pig slurry, Crop/agro-industrial residues, Animal by-products
Anaerobic digestion
Digestate-based solid fertiliser
Composting tunnel
RF2 (digestate-based solid granules)
Digestate-based liquid fertiliser
RF1 (digestate-based liquid fertiliser)
Biogas
Biogas and fertiliser production from pig manure and agricultural residues
Pig slurry, animal by-products, and crop residues are converted into renewable energy and organic fertilisers. The process combines anaerobic digestion, composting, and nitrification, with digestate granulation to produce safe fertilisers.
Bacterial cocktails and nanobubbles for pig manure treatment
New bacterial formulations and nanobubble technology are applied to stabilise pig manure and upgrade the liquid fraction. The process reduces emissions and odours, producing solid and liquid fertilisers suitable for on-farm application.
Halophyte cultivation from aquaculture effluents
Salt-tolerant plants, such as Salicornia, are cultivated in constructed wetlands to recover nutrients from aquaculture effluents. The process generates biomass that can be used for agricultural and commercial purposes.
Recovery of phosphate salts from urban wastewater
Phosphorus is recovered in the form of salts (struvite, vivianite) from municipal wastewater, enabling its reuse as a fertiliser.
Recovery of nitrogen-rich reclaimed water from urban wastewater
Technologies validated in previous projects (RUAGUA, LIFE SIAMEC) are optimised to recover over 80% of the Nitrogen from wastewater, producing reclaimed water enriched with Nitrogen for fertigation.
Recycling of agricultural run-off water for irrigation
Nanofiltration, aeration, and denitrification are combined to treat agricultural run-off contaminated with Nitrogen. A pilot in Murcia will return treated, safe water to irrigation systems.
