TORENO Wastewater Treatment Plant, Toreno, Castilla y León, Spain

TORENO is a wastewater treatment plant located in Toreno, a municipality in the El Bierzo region of León, Castilla y León, Spain. The plant serves a population of 3,375 and operates with advanced treatment technology, ensuring high-quality effluent. Its designed capacity is 3,375 m³/day, with a current discharge volume of 592.47 m³/day. As an advanced treatment facility, TORENO goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under Spanish and EU regulations. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. For a small agglomeration like Toreno, this level of treatment reflects local environmental priorities. The treated effluent from TORENO is discharged into the local river system, which flows through the Sil River basin and eventually into the Miño River, reaching the Atlantic Ocean. The plant plays a key role in protecting the ecological health of the Sil River and downstream aquatic habitats, supporting biodiversity and water quality in the region.

TORENO discharges into the Sil River basin, a tributary of the Miño River, which flows into the Atlantic Ocean. The Sil River supports diverse aquatic life and is important for regional biodiversity. The advanced treatment at TORENO helps reduce nutrient loading and protects downstream ecosystems, including sensitive freshwater habitats in the Miño basin.