Overview
Montjean-sur-Loire Les Cailleries is an advanced wastewater treatment plant in Montjean-sur-Loire, France, serving approximately 4,700 people. It discharges treated water into the Loire River basin.
Montjean-sur-Loire Les Cailleries is a wastewater treatment plant located in Montjean-sur-Loire, within the Pays de la Loire region of France. The plant serves a population of around 4,700, classifying it as a small to medium agglomeration under French regulations. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. With a designed capacity of 9,000 cubic meters per day and an average discharge volume of 838.47 cubic meters per day, it operates well within its capacity. As a French facility, it adheres to the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment levels for sensitive areas. The treated effluent is discharged into the Loire River basin, which flows into the Atlantic Ocean. The Loire is a major European river supporting diverse aquatic ecosystems and is recognized for its ecological significance. The plant's advanced treatment helps protect downstream water quality and biodiversity.
Environmental context
The plant discharges into the Loire River, which flows through central France before reaching the Atlantic Ocean near Saint-Nazaire. The Loire basin supports a rich variety of fish, birds, and plant species, including migratory fish like Atlantic salmon. The advanced treatment level helps minimize nutrient loading and protects the river's ecological health.
Frequently asked questions
The plant is located in Montjean-sur-Loire, in the Maine-et-Loire department of the Pays de la Loire region, France.
The plant serves approximately 4,700 people, classifying it as a small to medium agglomeration.
Treated wastewater is discharged into the Loire River basin, which ultimately flows into the Atlantic Ocean.
The plant provides advanced treatment, which includes nutrient removal and disinfection, exceeding the EU Urban Waste Water Treatment Directive's secondary treatment requirements.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection, treatment, and discharge of urban wastewater.
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