Overview
SENS ST DENIS wastewater treatment plant serves Saint-Denis-lès-Sens, France, treating wastewater for approximately 47,000 people. It operates under the EU Urban Waste Water Treatment Directive.
SENS ST DENIS is a wastewater treatment plant located in Saint-Denis-lès-Sens, a commune in the Yonne department of Bourgogne-Franche-Comté, France. The plant serves a population of approximately 47,000, classifying it as a medium agglomeration under EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving between 10,000 and 100,000 population equivalent are required to provide secondary treatment, with tertiary treatment mandated if the receiving waters are designated as sensitive areas. The plant's treatment process and capacity details are not publicly available, but it is expected to comply with these standards. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Yonne River, a tributary of the Seine. The Seine River flows through Paris and into the English Channel. The downstream environment supports diverse aquatic life and is important for regional water quality.
Environmental context
The treated effluent from SENS ST DENIS enters the local watercourse, which flows into the Yonne River and then the Seine River, eventually reaching the English Channel. The Seine basin is ecologically significant, supporting fish species such as salmon and eel, and providing habitat for migratory birds. The plant's discharge contributes to the overall water quality in this sensitive river system.
Frequently asked questions
SENS ST DENIS is located at Chemin de Halage, Saint-Denis-lès-Sens, in the Yonne department of Bourgogne-Franche-Comté, France.
The plant serves approximately 47,000 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated effluent into the local watercourse, which flows into the Yonne River, a tributary of the Seine River, ultimately reaching the English Channel.
As a plant serving over 10,000 population equivalent, SENS ST DENIS is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). If the receiving waters are sensitive, tertiary treatment may be required.
In France, wastewater treatment plants serving around 47,000 people typically employ secondary biological treatment, such as activated sludge, to meet EU standards. Some plants also incorporate nutrient removal if discharging into sensitive areas.
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