CANTORIA Wastewater Treatment Plant, Cantoria, Andalucía, Spain

CANTORIA is a municipal wastewater treatment plant located in Cantoria, a town in the Almanzora Valley within the province of Almería, Andalucía, Spain. The plant serves a population of approximately 2,097 residents, reflecting its role as a small-scale facility for the local community. 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. With a designed capacity of 3,400 m³/day and an average discharge volume of 380.08 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local water system, which ultimately drains into the Mediterranean Sea via the Almanzora River. The plant's location in a semi-arid region of southeastern Spain means that water resources are scarce, making effective wastewater treatment crucial for protecting downstream ecosystems and supporting agricultural reuse in the valley.

The plant discharges into the Almanzora River basin, which flows through the arid Almanzora Valley before reaching the Mediterranean Sea near Vera. The river supports a fragile riparian ecosystem in a region with low rainfall and high water demand. Downstream, the coastal waters are part of the Alboran Sea, an ecologically sensitive area that hosts diverse marine life and important fisheries. Effective treatment helps prevent nutrient pollution and protects both freshwater and marine habitats.