Overview
Saint Renan Lokournan wastewater treatment plant serves Saint-Renan, Bretagne, France. It treats wastewater for approximately 8,814 people and discharges into the local watershed.
The Saint Renan Lokournan wastewater treatment plant is located in Saint-Renan, a commune in the Finistère department of Bretagne, France. The plant serves a population of approximately 8,814 residents, placing it in the small-to-medium agglomeration category under French regulations. As part of France's wastewater infrastructure, it operates within the framework of the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets treatment standards based on population size and receiving water sensitivity. Under the EU UWWTD, agglomerations between 2,000 and 10,000 population equivalent (PE) are generally required to provide secondary treatment (biological treatment) unless discharging into sensitive areas that demand more stringent tertiary treatment. The regulatory context ensures that facilities of this scale meet national and European standards for effluent quality. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day or similar unit), indicating a modest scale consistent with the population served. The plant discharges treated effluent into the local watershed, which ultimately drains into the Atlantic Ocean via the coastal waters of the Iroise Sea. The receiving environment includes rivers and estuaries that support diverse aquatic life and are ecologically sensitive due to their proximity to the coast. The plant's location within 50 km of the coast underscores the importance of effective nutrient removal to prevent eutrophication in marine ecosystems.
Environmental context
The Saint Renan Lokournan plant discharges into the local watershed, which flows through the Brittany region and ultimately reaches the Iroise Sea, a coastal area of the Atlantic Ocean. This region supports diverse marine and estuarine habitats, including seagrass beds and nursery grounds for fish. Effective wastewater treatment is critical to minimize nutrient loading and protect water quality in this ecologically sensitive coastal zone.
Frequently asked questions
The plant is located in Lokournan, Saint-Renan, in the Finistère department of Bretagne, France.
The plant serves approximately 8,814 residents, classifying it as a small-to-medium agglomeration under EU regulations.
The plant discharges treated effluent into the local watershed, which flows into the Iroise Sea, a coastal area of the Atlantic Ocean.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size, with potential tertiary requirements if discharging into sensitive areas.
Under the EU UWWTD, plants serving between 2,000 and 10,000 PE are typically required to provide secondary treatment (biological treatment) to reduce organic matter and suspended solids. In sensitive coastal zones, additional nutrient removal may be required.
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