CAYENNE DEGRAD DES CANNES Wastewater Treatment Plant, Remire-Montjoly, French Guiana

CAYENNE DEGRAD DES CANNES is an advanced wastewater treatment plant located in Remire-Montjoly, a suburb of Cayenne in French Guiana. The plant serves a population of 900 and has a designed capacity of 1430 cubic meters per day, with an actual discharge volume of 160.56 cubic meters per day, indicating it operates well below its capacity. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a facility in French Guiana, an overseas department of France, it operates under French and European Union regulations, including the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for sensitive areas. The plant is located within 10 km of the coast, and its treated effluent likely discharges into the Atlantic Ocean via the Cayenne River or nearby coastal waters. This coastal discharge requires careful management to protect marine ecosystems, including coral reefs and mangroves that are ecologically sensitive and support diverse aquatic life.

The plant discharges into the Atlantic Ocean near the coast of French Guiana, a region characterized by extensive mangrove forests and rich marine biodiversity. The treated effluent enters the coastal waters, which are part of the Amazon River plume zone, influencing nutrient dynamics and supporting fisheries. The advanced treatment helps minimize nutrient loading, protecting sensitive habitats like coral reefs and seagrass beds from eutrophication.