Overview
Concorde wastewater treatment plant in Matoury, French Guiana, serves 2,550 people with secondary treatment. It discharges 454.92 m³/day and has a designed capacity of 4,750 m³/day.
Concorde is a secondary-level wastewater treatment plant located in the Concorde district of Matoury, near Cayenne in French Guiana. The facility serves a population of approximately 2,550 people, making it a small-scale municipal plant in the region. It is situated in a coastal area within 10 km of the Atlantic Ocean. The plant operates under French regulations which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), secondary treatment is the standard requirement. The plant has a designed capacity of 4,750 m³/day and currently discharges 454.92 m³/day of treated wastewater, indicating significant spare capacity. The treated effluent from Concorde ultimately drains into the Atlantic Ocean via local waterways. The coastal environment of French Guiana is ecologically sensitive, supporting mangrove ecosystems and diverse marine life. Proper treatment is essential to protect these habitats from nutrient pollution and pathogens.
Environmental context
The plant discharges into local streams that flow into the Cayenne River estuary and then into the Atlantic Ocean. The coastal waters of French Guiana are part of the Amazon-Orinoco plume, a nutrient-rich zone that supports high biodiversity, including sea turtles and migratory fish. Mangrove forests along the coast act as critical nursery habitats, making effective wastewater treatment important to prevent eutrophication and maintain water quality.
Frequently asked questions
The Concorde plant is located in the Concorde district of Matoury, near Cayenne in French Guiana. Its address is Rue Harpie Huppée, Concorde, Matoury, Cayenne, Guyane, 97351, France.
The plant has a designed capacity of 4,750 m³/day and currently discharges 454.92 m³/day of treated wastewater, indicating it operates well below its maximum capacity.
The treated effluent is discharged into local waterways that flow into the Cayenne River estuary and ultimately into the Atlantic Ocean.
As a French facility serving fewer than 10,000 people, the Concorde plant is classified as a small agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). The directive requires secondary treatment for such plants, which the Concorde plant provides.
For small agglomerations in French Guiana, secondary treatment is the standard requirement under French and EU regulations. This typically involves biological treatment to reduce organic matter and suspended solids before discharge.
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