Overview
Trieste Servola is a wastewater treatment plant in Trieste, Italy, serving a population of 166,500. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Trieste Servola is a wastewater treatment plant located in Trieste, Italy, serving an estimated population of 166,500. The plant is situated in the coastal region of the Adriatic Sea, within 50 km of the coast, and plays a key role in managing municipal wastewater for the area. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations with a population equivalent greater than 150,000, the directive requires secondary treatment as a minimum, and tertiary treatment if the receiving waters are sensitive areas. As a coastal plant, it may be subject to additional requirements to protect marine environments. The treated effluent is discharged into the Adriatic Sea, which is a semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution. The plant's operation helps protect the coastal ecosystem, including marine habitats and tourism-dependent areas, by reducing the load of organic matter and nutrients entering the sea.
Environmental context
The plant discharges into the Adriatic Sea, a semi-enclosed basin that receives freshwater from the Po River and other Italian rivers. The coastal waters near Trieste support diverse marine life, including seagrass meadows and fish nurseries, and are important for local fisheries and tourism. Nutrient inputs from wastewater can contribute to eutrophication, so effective treatment is critical to maintaining water quality and ecosystem health.
Frequently asked questions
Trieste Servola is located in Trieste, Italy, near the Adriatic Sea coast. The plant serves the municipal area of Trieste and surrounding communities.
The plant serves a population equivalent of approximately 166,500 people, classifying it as a large agglomeration under EU regulations.
The treated wastewater from Trieste Servola is discharged into the Adriatic Sea. As a coastal plant, it must meet stringent effluent standards to protect the marine environment.
Trieste Servola operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations over 150,000 population equivalent, the directive requires secondary treatment, and tertiary treatment if the receiving waters are sensitive areas.
In Italy, plants serving over 150,000 people are required to provide at least secondary treatment. Many such plants also incorporate nutrient removal (tertiary treatment) to meet water quality standards, especially when discharging into sensitive coastal waters like the Adriatic Sea.
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