Aqualia develops low-cost biological denitrification to cut nitrate inflows to Spain’s Mar Menor lagoon

• FCC Aqualia started field validation of a biological denitrification technology to remove nitrates from brackish inland waters flowing to Mar Menor.
• The pilot targets high-salinity streams, aiming for a lower-cost, more effective alternative to conventional nitrate treatments.
• Testing is underway in Los Alcázares near Rambla del Albujón, a major nutrient inflow point to the lagoon.
• The project is funded by CDTI, EU regional development funds, and the Murcia region under the RETO RECUPERA program.
• Continuous monitoring is being used to support scale-up design criteria, with results intended to underpin technical and economic viability.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. FCC Aqualia SA published the original content used to generate this news brief on September 28, 2026, and is solely responsible for the information contained therein.