Overview
Valldemosa wastewater treatment plant in Valldemossa, Illes Balears, Spain, serves 2,059 people with advanced treatment. It discharges 334.13 m³/day and is located within 10 km of the coast.
The Valldemosa wastewater treatment plant is located in the municipality of Valldemossa, in the Serra de Tramuntana mountain range on the island of Mallorca, Illes Balears, Spain. It serves a population of approximately 2,059 residents, reflecting a small agglomeration typical of this rural and tourist-oriented area. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment provides enhanced removal of nutrients and other pollutants, which is particularly important in sensitive coastal environments. The designed capacity is 4,840 m³/day, with an actual discharge volume of 334.13 m³/day, indicating significant reserve capacity. The treated effluent is discharged into the local environment, ultimately reaching the Mediterranean Sea. The plant's proximity to the coast (within 10 km) and its location in a UNESCO World Heritage cultural landscape (Serra de Tramuntana) underscore the importance of maintaining high treatment standards to protect both marine and terrestrial ecosystems.
Environmental context
The Valldemosa plant discharges into the Mediterranean Sea via local streams and groundwater. The Serra de Tramuntana region is a mountainous area with karstic aquifers and ephemeral watercourses that drain directly to the coast. The receiving marine environment supports seagrass meadows (Posidonia oceanica) and diverse coastal habitats. Advanced treatment helps minimize nutrient loading, which is critical to prevent eutrophication and preserve water quality in this ecologically sensitive coastal zone.
Frequently asked questions
The Valldemosa plant is located in the municipality of Valldemossa, in the Serra de Tramuntana mountain range on the island of Mallorca, Illes Balears, Spain.
The plant serves approximately 2,059 people, making it a small agglomeration under EU classification.
Treated effluent is discharged into local watercourses that drain to the Mediterranean Sea, within 10 km of the coast.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, in line with requirements for sensitive coastal areas under the EU Urban Waste Water Treatment Directive.
As a Spanish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into national law. For small agglomerations, secondary treatment is standard, but Valldemosa employs advanced treatment due to its coastal location.
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