Acuí­fero Tordera - Sustainable management, at local level, of the alluvial aquifer of the River Tordera, through the reuse of waste water, Spain

The Tordera Aquifer project aimed at improving water management in the Tordera municipality (Spain). The objectives were to improve quality of the sewage system; recycle treated water for conservation (aquifer recharge, establishment of wetlands; use renewable energy and low-maintenance, soft treatment systems in the processes; and serve as a pioneer example for other communities in the same river basin which can manage their water resources in a similar way. The project managed at the end to improve water quality, close the water cycle through the reuse of treated wastewater and create an infiltration wetland, along with the restoration of the fluvial area. The main innovation of the project was the transport of treated water upstream, where extraction wells for water consumption are allocated. In this way, water can be reused in a closed cycle. Furthermore, this system is based solely on solar energy.