Demonstrations

POST-PURPLE showcases real-world innovations in sustainable water and waste management. Our demonstration sites highlight cutting-edge technologies that reduce emissions, recover valuable resources, and promote circular economy solutions.

Thermal Hydrolysis – Rivas-Vaciamadrid, Spain

  • Treats ~65,000 t of organic waste annually
  • Landfill rate reduced to 5–15%
  • Converts waste into biogas
  • Reduces landfill volumes
  • Enables production of high-value products from side-streams

Advanced thermal hydrolysis transforms organic waste into renewable energy and high-value products, showcasing innovative approaches to sustainable waste treatment.

Solid Urban Waste Treatment – Kozani, Greece

  • Processes ~120,000 t of waste per year
  • 35% solid rejects landfilled
  • Mechanical sorting of recyclables & organics
  • Aerobic composting in closed boxes
  • Produces raw materials for biochar & renewable energy

The Mechanical and Biological Treatment (MBT) plant separates recyclables, composts organic waste, and converts residues into biochar and energy, closing the loop on urban waste management.

Wastewater Treatment Plant – Badajoz, Spain

  • Treats 66,000 m³/day of wastewater
  • CO₂ savings up to 48,000 t/year
  • Pilot PPB Photobioreactor (ANPHORA®) for nutrient recovery
  • Produces biofertiliser-ready biomass
  • Tertiary treatment enables water reuse for irrigation & industry

This wastewater treatment plant (WWTP) features a photobioreactor that cleans water, captures nutrients, and produces sustainable biofertiliser, reducing emissions and supporting circular water use.