Overview
CILLEROS wastewater treatment plant in Cilleros, Extremadura, Spain, serves 4,200 people with secondary treatment. It has a designed capacity of 3,700 m³/day and discharges 761.24 m³/day.
The CILLEROS wastewater treatment plant is located in the municipality of Cilleros, in the province of Cáceres, Extremadura, Spain. It serves a population of approximately 4,200 residents, making it a small-scale municipal facility typical of rural communities in the region. The plant provides secondary treatment, which is the standard required by 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 3,700 m³/day and an average discharge volume of 761.24 m³/day, the facility operates well within its capacity. The treated effluent is discharged into the local watershed, which ultimately drains into the Tagus River basin. The Tagus River is one of the longest rivers in the Iberian Peninsula, flowing westward through Spain and Portugal before reaching the Atlantic Ocean near Lisbon. The plant's operations help protect downstream water quality and aquatic ecosystems.
Environmental context
The plant discharges into a tributary of the Tagus River basin, which flows through central Spain and Portugal to the Atlantic Ocean. The Tagus River supports diverse aquatic life and is an important water resource for agriculture and urban supply. The secondary treatment process reduces organic pollutants and suspended solids, helping to maintain the ecological health of the receiving waters.
Frequently asked questions
The CILLEROS plant is located at Calle Dalias, Cilleros, in the province of Cáceres, Extremadura, Spain.
The plant serves approximately 4,200 residents in the municipality of Cilleros and surrounding areas.
The plant uses secondary treatment, which typically involves biological processes to break down organic matter and remove suspended solids before discharge.
As a Spanish facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
The plant has a designed capacity of 3,700 m³ per day, with an average discharge of 761.24 m³ per day, indicating it operates well below its maximum capacity.
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