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Visiter Ginestous usine dépollution eaux usées

Ginestous Garonne wastewater treatment plant 

We use a significant amount of water in our daily lives, but what happens to it? How is it treated and returned to the natural environment? Manatour invites you to discover the Toulouse wastewater cycle through our guided tour.

Ginestous: a mission to treat and recover the wastewater of the Metropolis

Eau de Toulouse Métropole aims to make the inhabitants of the Métropole aware of good actions for the preservation of water and the environment, but also to make them understand the essential nature of the missions and professions of the sanitation service. .

The 3 educational rooms, located on the wastewater treatment plants of Ginestous-Garonne in Toulouse, Aussonnelle in Seilh and Hers-Aval in Castelginest , offer fun and educational materials, suitable for everyone. In complete safety, visitors can follow a circuit in the heart of the factories in order to discover the structures and techniques for treating wastewater.

A real technological jewel, Ginestous-Garonne is the main wastewater treatment and recovery plant in the Metropolis . It treats the wastewater of 76% of the inhabitants, i.e. 160,000 m3/day, transported by more than 1,000 km of networks. The plant has the latest innovations both to clean up waste water and to recover sewage sludge into energy.

Given the new health restrictions, visits to the general public of Ginestous-Garonne are suspended until further notice.

Methanisation, a technique at the heart of the Ginestous station

As part of the "Biomass" family of renewable energies, methanisation is central to the operation of the Ginestous wastewater treatment plant. The aim is to use the sludge generated by the treatment and purification of Toulouse's wastewater, and then transform it into green and renewable energy. To do this, the sludge is heated in digesters that break down the organic matter, producing biogas. This biomethane is then injected into the Toulouse gas distribution network, which enables us to power our beautiful Tisséo buses or to provide green energy to nearly 11,000 inhabitants of the Pink City.

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Visit Ginestous Garonne



Group rates & Information

For everyone


Reservation required for groups, with a minimum delay of 3 weeks before the desired date of visit.

Visitors must travel to the site by bus and wear closed shoes.

Pets are prohibited during the tour. Cameras are also prohibited.

An ID will be required on the day of the visit. Minors must be accompanied for the visit.

Visit accessible to people with reduced mobility. Every Monday and Friday except public holidays.

As part of the work to install a biogas unit and throughout the duration of the work, visits are subject to exceptional modification or cancellation subject to a minimum of 3-4 days' notice.

For more information:

meeting address

Water from Toulouse Métropole
Sanitation service
Ginestous - Garonne wastewater treatment plant
51 chemin de Chantelle
31200 Toulouse


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