Overview
DP01519101_S_COLOMBANO_AL_LAMBRO is a municipal wastewater treatment plant in San Colombano al Lambro, Lombardy, Italy, serving approximately 21,208 people. It operates under the EU Urban Waste Water Treatment Directive.
DP01519101_S_COLOMBANO_AL_LAMBRO is a wastewater treatment plant located in San Colombano al Lambro, a town in the Lombardy region of northern Italy. The plant serves a population of about 21,208, placing it in the medium agglomeration category under EU classification. As an Italian plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The regulatory framework ensures compliance with national and EU standards. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Po River basin. The Po River flows eastward across northern Italy and empties into the Adriatic Sea. This region is agriculturally productive and ecologically sensitive, with the Po Delta supporting diverse aquatic life and migratory bird populations.
Environmental context
The plant's treated effluent enters the Lambro River, a tributary of the Po River. The Po River basin is Italy's largest and most economically important watershed, draining the entire Po Valley into the Adriatic Sea. The downstream environment includes the Po Delta, a complex wetland system that supports diverse aquatic species and serves as a critical stopover for migratory birds. Nutrient loading from wastewater can contribute to eutrophication in the Adriatic, making treatment standards important for regional water quality.
Frequently asked questions
The plant is located in San Colombano al Lambro, a town in the Lombardy region of northern Italy, approximately 45 km southeast of Milan.
The plant serves approximately 21,208 people, classifying it as a medium-sized agglomeration under EU standards.
The treated wastewater is discharged into the local watercourse, which flows into the Lambro River and eventually the Po River, reaching the Adriatic Sea.
As an Italian plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations over 2,000 population equivalent and more stringent treatment in sensitive areas.
Under the EU directive, plants serving 10,000-150,000 population equivalent typically require secondary treatment (biological treatment with secondary settlement). If the receiving waters are sensitive, tertiary treatment for nutrient removal may be required.
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