DP01804801_CHIGNOLO_PO Wastewater Treatment Plant, Chignolo Po, Lombardy

DP01804801_CHIGNOLO_PO is an advanced wastewater treatment plant located in Chignolo Po, a municipality in the province of Pavia, Lombardy, Italy. The plant serves a population of approximately 3,271 residents, placing it in the small agglomeration category under Italian and European regulations. It operates within the Po River watershed, one of Italy's most significant hydrological basins. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Its designed capacity is 6,500 cubic meters per day, and it currently discharges a daily volume of about 647.54 cubic meters, indicating ample reserve capacity. As an Italian facility, 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. The treated effluent is discharged into the Po River basin, which flows eastward through the Po Valley and into the Adriatic Sea. The Po River supports diverse aquatic life and is an important agricultural and industrial resource. The plant's advanced treatment helps protect downstream water quality and the ecological health of the Po Delta, a region of high environmental sensitivity.

The plant discharges into the Po River basin, which drains the Po Valley and ultimately reaches the Adriatic Sea. The Po River is Italy's longest river and supports a rich ecosystem, including fish species such as sturgeon and eel. The downstream Po Delta is an ecologically sensitive area with extensive wetlands that provide habitat for migratory birds. Advanced treatment at this plant helps reduce nutrient loading, which is critical for preventing eutrophication in the Adriatic Sea.