ROTGLA Y CORBERA Wastewater Treatment Plant, Rotglà i Corberà, Spain

The ROTGLA Y CORBERA wastewater treatment plant is located in Rotglà i Corberà, a municipality in the Comunitat Valenciana region of eastern Spain. The plant serves a population of approximately 4,556 people and has a designed capacity of 4,500 cubic meters per day, with an average discharge volume of 663.83 cubic meters per day. As a secondary treatment facility, the plant provides biological treatment to remove organic matter and suspended solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size (under 10,000 population equivalent) are required to have appropriate treatment, and secondary treatment is standard for inland plants discharging to freshwater. The plant's treated effluent is discharged into the local water system, which ultimately drains into the Mediterranean Sea via the Júcar River basin. The Comunitat Valenciana region relies on this treatment infrastructure to protect downstream water quality and support agricultural and ecological uses in the area. Environmental significance: The plant helps protect the Júcar River basin and the Mediterranean coastal environment from nutrient pollution and pathogens, supporting aquatic life and recreational uses.

The plant discharges into the Júcar River basin, which flows eastward into the Mediterranean Sea. The downstream environment includes agricultural areas and coastal ecosystems that depend on good water quality. The region's Mediterranean climate means seasonal variations in flow, making consistent treatment important for maintaining ecological balance in the river and coastal waters.