BIBIANA BOSI Wastewater Treatment Plant, San Bartolomeo, Piemonte, Italy

BIBIANA BOSI is a wastewater treatment plant located in San Bartolomeo, a locality within the municipality of Bibiana in the Piemonte region of Italy. The plant serves a population of approximately 3,519 people, classifying it as a small agglomeration under Italian and European regulatory frameworks. It is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size discharging into freshwater bodies. The designed capacity is 2,000 m³/day, with a current discharge volume of 620 m³/day, indicating operational capacity below design levels. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local watercourse, which ultimately drains into the Po River basin, one of Italy's major river systems. The Po River flows eastward into the Adriatic Sea, supporting diverse aquatic ecosystems and agricultural activities along its course. The plant's operations contribute to protecting the local watershed and downstream water quality in the Po basin.

The plant discharges into a tributary of the Po River, which flows through the Po Valley and into the Adriatic Sea. The Po basin is a critical ecological and agricultural region, supporting diverse fish populations and migratory birds. The secondary treatment provided helps reduce nutrient and organic pollution, mitigating eutrophication risks in the Adriatic Sea and preserving the ecological balance of the river system.