Overview
CASTELLBELL I EL VILAR wastewater treatment plant serves Castellbell i el Vilar in Catalunya, Spain. It has a designed capacity of 1.00 volume units and serves a population of 8,811.
The CASTELLBELL I EL VILAR wastewater treatment plant is located in Castellbell i el Vilar, a municipality in the province of Barcelona, Catalunya, Spain. The plant serves a population of approximately 8,811 residents and has a designed capacity of 1.00 volume units, indicating it is a small to medium-scale facility. As a Spanish wastewater treatment plant, it operates under the national regulatory framework that implements the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (between 2,000 and 10,000 population equivalent), the directive requires secondary treatment or equivalent. It is expected to meet these standards. The plant discharges treated wastewater into the local water system, which ultimately drains into the Mediterranean Sea via the Llobregat River basin. The region is characterized by a Mediterranean climate, and the receiving waters support diverse aquatic life and are important for irrigation and recreational use downstream.
Environmental context
The plant's treated effluent flows into the Llobregat River basin, which drains into the Mediterranean Sea near Barcelona. The Llobregat River is a key water resource for the region, supporting agriculture, industry, and urban water supply. The downstream environment includes ecologically sensitive coastal areas and wetlands that provide habitat for migratory birds and aquatic species. Proper treatment is essential to protect water quality and ecosystem health.
Frequently asked questions
The plant is located in Castellbell i el Vilar, in the province of Barcelona, Catalunya, Spain.
The plant serves approximately 8,811 residents.
The treated wastewater is discharged into the local water system, which flows into the Llobregat River basin and ultimately reaches the Mediterranean Sea.
As a Spanish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
Under the EU directive, plants serving between 2,000 and 10,000 population equivalent are typically required to have secondary treatment, which involves biological processes to reduce organic matter and suspended solids.
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