GGsolutions project (PID2024-161596OB-C21; MICIU/AEI/10.13039/501100011033/FEDER, UE; 09/2025 – 08/2028) has recently launched at ICRA. It aims to promote innovative solutions based on the circular economy and sustainability to address challenges such as water scarcity and waste management in urban environments. The project proposes reusing alternative resources, such as greywater and sludge from households and industrial laundries, using experimental green wall installations that allow for the irrigation of urban gardens. Additionally, it explores the use of biosolids and organic amendments derived from composting systems as natural fertilizers for the soil.

The study will evaluate the efficiency of green walls and composting systems in removing chemical contaminants such as plastic additives, pharmaceuticals, personal care products, microplastics, and pesticides. The fate of residual contaminants in treated water and soil will also be analyzed, including their potential accumulation in crops and infiltration into groundwater, supported by advanced analytical tools.

Through a “Living Lab” approach, GGsolutions fosters sustainable urban agriculture, minimizing environmental impacts and enhancing city resilience to climate change. The project will generate key knowledge for risk assessment and the development of decision-support tools for decentralized water treatment and reuse systems.

The project has a total budget of €182,500 and is led by Gianluigi Buttiglieri and Sara Rodriguez-Mozaz, with the participation of Joaquim Comas, Maria Eugenia Valdés, Maria Pau Garcia Moll, Diana Alvarez, and Sara Insa.