Overview
MARCHENA wastewater treatment plant serves the town of Marchena in Andalucía, Spain, with a population equivalent of 27,500. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
The MARCHENA wastewater treatment plant is located in Marchena, a town in the province of Sevilla, within the autonomous community of Andalucía, Spain. The facility serves a population equivalent of 27,500, classifying it as a medium agglomeration under EU regulations. As a Spanish treatment plant, MARCHENA is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection and treatment based on population size and receiving water sensitivity. For agglomerations between 10,000 and 150,000 population equivalent, secondary treatment is generally required, with more stringent treatment in sensitive areas. The plant's treated effluent is discharged into the local hydrological network, which ultimately drains into the Guadalquivir River basin and then into the Gulf of Cádiz (Atlantic Ocean). This downstream environment supports diverse aquatic life and is important for regional water quality management.
Environmental context
The MARCHENA plant discharges into the Guadalquivir River basin, which flows through Andalucía to the Gulf of Cádiz in the Atlantic Ocean. The Guadalquivir is a major river supporting irrigated agriculture, wetlands, and estuarine ecosystems. The downstream environment includes ecologically sensitive areas that depend on good water quality to sustain biodiversity and fisheries.
Frequently asked questions
The MARCHENA plant is located in Marchena, in the province of Sevilla, Andalucía, Spain. Its address is Carretera de Puebla de Cazalla a Carmona por Marchena, Marchena, Sevilla, 41620.
The plant serves a population equivalent of 27,500, which classifies it as a medium-sized agglomeration under EU wastewater treatment regulations.
The treated effluent is discharged into the local water network, which flows into the Guadalquivir River basin and ultimately reaches the Gulf of Cádiz in the Atlantic Ocean.
As a Spanish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size, with possible tertiary treatment in sensitive areas.
Under the EU UWWTD, plants serving 10,000 to 150,000 population equivalent are generally required to provide secondary treatment (biological treatment). In sensitive areas, more stringent treatment may be needed.
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