CORBINS Wastewater Treatment Plant, Corbins, Catalunya, Spain

CORBINS wastewater treatment plant is located in Corbins, a municipality in the Segrià comarca of Catalunya, Spain. The facility serves a population of approximately 1,375 people, making it a small-scale municipal treatment plant. It is situated along the C-12 road connecting Lleida to Balaguer and Àger. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent between 2,000 and 10,000. The designed capacity is 2,083 cubic meters per day, and the average daily discharge volume is 194.89 cubic meters, indicating the plant operates well below its design capacity. The treated effluent is discharged into the local hydrological network, which ultimately drains into the Segre River, a major tributary of the Ebro River. The Ebro River flows into the Mediterranean Sea via the Ebro Delta, an ecologically important area that supports diverse aquatic life and migratory bird populations. The plant's secondary treatment helps protect downstream water quality in this sensitive river basin.

The CORBINS plant discharges treated wastewater into the Segre River basin, which flows into the Ebro River and eventually reaches the Mediterranean Sea via the Ebro Delta. The delta is a critical habitat for numerous bird species and supports extensive rice farming. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain the ecological balance of the river system and prevent eutrophication in downstream coastal waters.