PINOSO Wastewater Treatment Plant, el Pinós / Pinoso, Comunitat Valenciana, Spain

PINOSO wastewater treatment plant is located in el Pinós / Pinoso, a municipality in the Comunitat Valenciana region of eastern Spain. The plant serves a population of approximately 14,943, placing it in the medium agglomeration category under Spanish and EU regulations. Its advanced treatment level indicates a high standard of wastewater purification. The plant operates under Spain's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for inland agglomerations of this size. As an advanced treatment facility, it likely incorporates nutrient removal or other tertiary processes to meet stringent discharge standards. The designed capacity of 11,475 m³/day suggests the plant is sized to handle current and future flows. The treated effluent from PINOSO is discharged into the local watershed, which ultimately drains into the Mediterranean Sea via the Segura River basin. The region's semi-arid climate makes water quality management particularly important for downstream ecosystems and agricultural reuse. The plant plays a key role in protecting local water bodies from nutrient pollution and supporting the ecological health of the Vinalopó Valley.

The plant discharges into the Vinalopó River basin, a tributary of the Segura River, which flows into the Mediterranean Sea near Guardamar del Segura. The Segura basin supports irrigated agriculture and wetlands of ecological importance, including coastal lagoons. Advanced treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in the Mediterranean coastal zone.