Overview
DORMANS wastewater treatment plant in Dormans, Grand Est, France serves 4,225 people with advanced treatment. It discharges 753.73 m³/day and has a designed capacity of 5,300 m³/day.
The DORMANS wastewater treatment plant is located in Dormans, a commune in the Marne department of the Grand Est region, France. It serves a population of approximately 4,225 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated inland, away from coastal areas, and treats municipal wastewater from the local community. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU UWWTD for agglomerations of this size. With a designed capacity of 5,300 m³/day and an actual discharge volume of 753.73 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The plant's advanced treatment ensures high-quality effluent, reducing nutrient loads and protecting the receiving environment. The treated effluent is discharged into a local watercourse that ultimately drains into the Marne River, a major tributary of the Seine River. The Seine flows through Paris and into the English Channel, making the plant's performance important for downstream water quality. The advanced treatment helps safeguard aquatic ecosystems and supports the ecological health of the Seine basin.
Environmental context
The DORMANS plant discharges into a local stream that feeds the Marne River, a key tributary of the Seine River. The Seine basin supports diverse aquatic life and is an important ecological corridor in northern France. Advanced treatment at this plant reduces nutrient pollution, helping to prevent eutrophication in downstream waters, including the Seine estuary and the English Channel.
Frequently asked questions
The DORMANS plant is located at Rue des Vieux Saules, Dormans, in the Marne department of the Grand Est region, France.
The plant serves approximately 4,225 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into a local watercourse that flows into the Marne River, a tributary of the Seine River, ultimately reaching the English Channel.
The plant provides advanced treatment, which exceeds the secondary treatment standard required by the EU UWWTD for agglomerations of this size.
Under the EU UWWTD, small agglomerations (under 10,000 population equivalent) are generally required to provide secondary treatment. DORMANS exceeds this with advanced treatment, ensuring high effluent quality and environmental protection.
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