Overview
SILES wastewater treatment plant in Siles, Andalucía, Spain, serves 2,300 people with advanced treatment. It discharges 416.87 m³/day and has a designed capacity of 3,975 m³/day.
The SILES wastewater treatment plant is located in the municipality of Siles, within the province of Jaén in Andalucía, Spain. This facility serves a population of approximately 2,300 residents, reflecting its role in managing domestic wastewater for a small inland community. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,975 m³/day and an average discharge volume of 416.87 m³/day, the plant operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Guadalquivir River basin, one of Spain's major river systems. This river flows southwest through Andalucía and empties into the Atlantic Ocean near Sanlúcar de Barrameda. The advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the Guadalquivir basin.
Environmental context
The plant's discharge enters the Guadalquivir River basin, which supports diverse aquatic life and is an important ecological corridor in southern Spain. The Guadalquivir River flows through agricultural and natural areas before reaching the Atlantic Ocean, where its estuary hosts migratory birds and fish species. Advanced treatment at this plant helps reduce nutrient and pollutant loads, contributing to the health of this downstream environment.
Frequently asked questions
The SILES wastewater treatment plant is located at Camino La Máquina, Siles, Jaén, in the autonomous community of Andalucía, Spain.
The plant serves approximately 2,300 people in the municipality of Siles and surrounding areas.
The treated wastewater is discharged into the local watershed, which flows into the Guadalquivir River basin, eventually reaching the Atlantic Ocean.
The plant provides advanced treatment, which exceeds the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for agglomerations of this size.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into Spanish law. For small agglomerations like Siles (under 10,000 population equivalent), the directive requires appropriate treatment, and the plant's advanced treatment exceeds these requirements.
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