Overview
CAYENNE LA ROSERAIE is an advanced wastewater treatment plant in Cayenne, French Guiana, serving 370 people with a designed capacity of 950 m³/day and a discharge volume of 66.01 m³/day.
CAYENNE LA ROSERAIE is a wastewater treatment plant located in the La Roseraie district of Cayenne, the capital of French Guiana. This facility serves a small population of 370 people, reflecting its role in a residential area of the city. The plant is situated near the coast, within 10 km of the Atlantic Ocean, which influences its operational and environmental considerations. The plant employs advanced treatment processes, ensuring a high level of effluent quality before discharge. With a designed capacity of 950 m³/day and a current discharge volume of 66.01 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal variability. As a French overseas department, the plant operates under French regulations, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC), requiring advanced treatment for sensitive areas and coastal discharges. The treated effluent is discharged into the coastal waters of the Atlantic Ocean near Cayenne. The local watershed includes the Cayenne River and surrounding mangroves, which are ecologically sensitive habitats supporting diverse aquatic life. The discharge point is in a tropical coastal environment, where nutrient management is critical to prevent eutrophication and protect marine ecosystems, including coral reefs and seagrass beds in the region.
Environmental context
The plant discharges treated wastewater into the Atlantic Ocean near Cayenne, within the coastal zone of French Guiana. The receiving waters are part of the Amazon-Orinoco coastal system, a region of high biodiversity with mangroves, estuaries, and offshore reefs. The tropical climate and nutrient-sensitive coastal environment require advanced treatment to minimize ecological impacts, such as algal blooms and oxygen depletion, which could affect local fisheries and marine life.
Frequently asked questions
CAYENNE LA ROSERAIE is located at 16, Rue Bois Violet, Lotissement La Roseraie, in Cayenne, French Guiana, near the Atlantic coast.
The plant serves a population of 370 people, indicating it is a small-scale facility serving a residential area in Cayenne.
The plant discharges treated effluent into the Atlantic Ocean, within 10 km of the coast. The advanced treatment ensures high-quality effluent to protect the marine environment.
As a French overseas department, French Guiana follows EU directives. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for coastal discharges to sensitive areas.
For small agglomerations in coastal areas of French Guiana, advanced treatment is often required to protect sensitive marine ecosystems, aligning with EU standards for nutrient removal and disinfection.
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