Overview
MURET Zi Marclan is an advanced wastewater treatment plant in Muret, Occitanie, France, serving 1,720 people with a designed capacity of 1,750 m³/day and a discharge volume of 306.85 m³/day.
MURET Zi Marclan is a wastewater treatment facility located in Muret, a commune in the Haute-Garonne department of Occitanie, southern France. The plant serves a population of 1,720 and has a designed capacity of 1,750 m³/day, with an actual discharge volume of 306.85 m³/day, indicating it operates well below its capacity. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. As a French facility, it operates under national regulations transposing the directive, with oversight from the local water agency (Agence de l'Eau). The treated effluent is discharged into the local watershed, which ultimately drains into the Garonne River via the Louge or a tributary. The Garonne flows through the Aquitaine region and into the Gironde estuary, supporting diverse aquatic life and providing water for agriculture and drinking water downstream. The plant's advanced treatment helps reduce nutrient loading, protecting the Garonne's ecological health.
Environmental context
The plant discharges into the Garonne River basin, which flows through southwestern France to the Gironde estuary and the Atlantic Ocean. The Garonne supports diverse fish species, including migratory salmonids, and its estuary is a critical habitat for birds and marine life. Advanced treatment at this plant reduces nutrient pollution, helping to prevent eutrophication in the river and coastal waters.
Frequently asked questions
MURET Zi Marclan is located in Muret, a commune in the Haute-Garonne department of the Occitanie region in southern France. The plant's address is at the Muret recycling center (Déchèterie de Muret) on Rue Jean-François Romieu.
The plant serves a population of 1,720 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The plant uses advanced treatment processes, which include nutrient removal (nitrogen and phosphorus) in addition to secondary biological treatment. This level of treatment is typical for plants discharging into sensitive areas to protect water quality.
The treated effluent is discharged into the local watershed, which drains into the Garonne River. The Garonne flows through the Aquitaine region and into the Gironde estuary, eventually reaching the Atlantic Ocean.
As a French plant serving fewer than 2,000 people, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment. The plant's advanced treatment exceeds the secondary treatment standard, ensuring protection of the Garonne River basin.
Nearby plants