Overview
COGNE wastewater treatment plant serves the town of Cogne in Valle d'Aosta, Italy, treating wastewater from approximately 10,000 residents. The plant operates under Italy's implementation of the EU Urban Waste Water Treatment Directive.
COGNE is a wastewater treatment plant located in Cogne, a town in the Valle d'Aosta region of northwestern Italy. Situated in the Aosta Valley, the plant serves a population of around 10,000 people, providing essential sanitation services for this Alpine community. As a plant serving a medium-sized agglomeration, COGNE is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into freshwater bodies. Italy has transposed this directive into national law, and plants of this scale are expected to meet secondary treatment standards to protect water quality. The plant's treated effluent is discharged into the local watershed, which drains into the Dora Baltea River, a major tributary of the Po River. The Po River flows eastward through northern Italy, eventually reaching the Adriatic Sea. This connection highlights the plant's role in safeguarding downstream ecosystems, including the Po Delta, a region of significant ecological importance.
Environmental context
The COGNE plant discharges into the Dora Baltea River, which flows through the Aosta Valley and joins the Po River near Turin. The Po River is Italy's longest river and its delta is a critical habitat for migratory birds and aquatic species. The plant's operations help maintain water quality in this sensitive Alpine-to-Adriatic drainage system, supporting both local biodiversity and downstream communities.
Frequently asked questions
The COGNE plant is located in Cogne, a town in the Valle d'Aosta region of northwestern Italy, at Via Cavagnet, Veulla.
The plant serves approximately 10,000 residents in the Cogne area.
The treated effluent is discharged into the local watershed, which flows into the Dora Baltea River, a tributary of the Po River.
As a plant serving a medium-sized agglomeration, COGNE is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC), which Italy has implemented into national law.
For plants of this scale in Italy, secondary treatment is standard, involving biological processes to reduce organic matter and suspended solids, in line with EU requirements.
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