DP01907101_PIADENA Wastewater Treatment Plant, Piadena Drizzona, Lombardia

DP01907101_PIADENA is an advanced wastewater treatment plant located in Vho, Piadena, within the municipality of Piadena Drizzona, Cremona, Lombardia, Italy. The plant serves a population of approximately 3,835 residents and has a designed capacity of 7,400 cubic meters per day, with a reported discharge volume of 759.19 cubic meters per day. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive requires appropriate treatment, and Italy's implementation ensures compliance with sensitive area requirements where applicable. The plant's treated effluent is discharged into local watercourses that drain into the Po River basin, eventually reaching the Adriatic Sea. The Po River is Italy's longest river and supports extensive agricultural irrigation, diverse aquatic ecosystems, and important migratory bird habitats. The advanced treatment helps protect downstream water quality in this ecologically and economically vital basin.

The plant discharges into the Po River basin, which flows eastward through northern Italy to the Adriatic Sea. The Po River supports a rich ecosystem including fish species like sturgeon and eel, and its delta is a critical stopover for migratory birds. Advanced treatment at this plant reduces nutrient loading, helping to mitigate eutrophication risks in the Adriatic Sea and protect the ecological balance of the Po watershed.