BEJIS Wastewater Treatment Plant, Bejís, Comunitat Valenciana, Spain

BEJIS is a wastewater treatment plant located in Bejís, a municipality in the Alt Palància comarca of Castellón, Comunitat Valenciana, Spain. The plant serves a population of 1,117 and is part of the region's municipal wastewater infrastructure, operating under Spanish and European Union regulations. 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 of this size. With a designed capacity of 4,000 m³/day and an actual discharge volume of 110.35 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that drain into the Mediterranean Sea via the Palància River basin. The plant plays a key role in protecting the region's water quality, supporting downstream ecosystems and agricultural water use in the Valencia coastal area.

The plant discharges into the Palància River basin, which flows eastward through the Comunitat Valenciana and empties into the Mediterranean Sea near Sagunto. The downstream environment includes agricultural areas and coastal wetlands that support diverse aquatic life. The plant's secondary treatment helps reduce organic pollutants and nutrients, mitigating eutrophication risks in the sensitive Mediterranean coastal zone.