ASCo Wastewater Treatment Plant, Ascó, Catalunya, Spain

ASCo is an advanced wastewater treatment plant located in Ascó, a municipality in the Ribera d'Ebre comarca of Tarragona, Catalunya, Spain. The plant serves a population of 1,970 and is part of the region's water infrastructure, discharging treated wastewater into the local water environment. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 5,250 m³/day and a current discharge volume of 369.33 m³/day, the plant operates well below its capacity, indicating room for future growth. As a Spanish facility, it operates under the national transposition of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for sensitive areas. The treated effluent from ASCo is discharged into the Ebro River basin, which flows through Catalunya and into the Mediterranean Sea. The Ebro River is a major watercourse in northeastern Spain, supporting diverse aquatic life and agricultural activities. The plant's advanced treatment helps protect the river's water quality and the downstream delta ecosystem.

ASCo discharges into the Ebro River basin, which flows through the Ribera d'Ebre region and ultimately reaches the Mediterranean Sea via the Ebro Delta. The delta is an ecologically sensitive area that supports a variety of bird species and aquatic habitats. Advanced treatment at the plant helps reduce nutrient loads, protecting the river's water quality and the downstream delta ecosystem from eutrophication.