Overview
JESI_DEP wastewater treatment plant serves Jesi, Italy, a town of about 46,000 people. The facility operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
JESI_DEP is a wastewater treatment plant located in Jesi, in the Marche region of central Italy, serving a population of approximately 46,428. The plant is situated in the industrial zone of Jesi, near the city of Ancona, and plays a key role in managing municipal wastewater for this medium-sized agglomeration. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations between 10,000 and 150,000 population equivalent, the directive requires secondary treatment as a minimum, with more stringent treatment in sensitive areas. Italy has designated many water bodies as sensitive, including the Adriatic Sea coastal zone, which may influence treatment requirements. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Adriatic Sea via the Esino River or nearby coastal waters. The Adriatic Sea is a semi-enclosed basin with limited water exchange, making it sensitive to nutrient pollution. Proper treatment at JESI_DEP helps protect marine ecosystems, including seagrass meadows and fish habitats, from eutrophication.
Environmental context
The plant's treated effluent flows into the local drainage network, likely reaching the Esino River, which discharges into the Adriatic Sea near Ancona. The Adriatic Sea is a shallow, semi-enclosed basin with slow water circulation, making it vulnerable to nutrient enrichment from wastewater. The coastal zone supports diverse marine life, including important fisheries and seagrass beds, which benefit from effective nutrient removal at treatment plants like JESI_DEP.
Frequently asked questions
JESI_DEP is located in the Zona Direzionale area of Jesi, in the province of Ancona, Marche region, central Italy.
The plant serves approximately 46,428 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated effluent into the local watershed, which ultimately flows into the Adriatic Sea, likely via the Esino River.
Under the EU UWWTD (91/271/EEC), agglomerations between 10,000 and 150,000 population equivalent require at least secondary treatment. Italy has designated many coastal areas as sensitive, potentially requiring more advanced treatment to protect the Adriatic Sea.
For a plant of this scale in Italy, secondary treatment is the minimum standard under EU law. In sensitive areas like the Adriatic coast, tertiary treatment for nutrient removal (nitrogen and phosphorus) is often required to prevent eutrophication.
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