CAYENNE LOTISSEMENT URANUS Wastewater Treatment Plant, Cayenne, French Guiana

CAYENNE LOTISSEMENT URANUS is a wastewater treatment plant located in Cayenne, the capital of French Guiana, an overseas department of France. The plant serves a small population of 600 residents and is situated in the Novaparc area, near the coast of the Atlantic Ocean. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Although the designed capacity is 600 m³/day, the actual discharge volume is 107.04 m³/day, indicating the plant operates well below its capacity. The treated effluent is discharged into the coastal waters of the Atlantic Ocean, which are ecologically sensitive due to the presence of mangroves and diverse marine life. The plant's advanced treatment helps protect the local watershed and downstream environment from nutrient pollution and other contaminants.

The plant discharges into the Atlantic Ocean near Cayenne, within the Guiana Shield region, which is known for its rich biodiversity and extensive mangrove ecosystems. These mangroves serve as critical nursery habitats for fish and crustaceans and help stabilize the coastline. The advanced treatment reduces the risk of eutrophication and protects the sensitive marine environment downstream.