Included in the master plan of the Barousse Comminges Save water association, the project for a new Ausson wastewater treatment plant is nearing completion.
The first tests should be launched at the beginning of April and it will soon be commissioned: the new treatment plant built by the Barousses water association will soon be operational.
The investment * had become urgent for two reasons: on the one hand the demographic expansion of the municipality of Ausson, on the other the creation of the “La Saoucette” Activity Zone by the community of municipalities which will host in particular the Dardenne chocolate factory.
Also the “old” municipal wastewater treatment plant, built in 2000 for 300 inhabitants (or “equivalent inhabitants”) no longer meets the need. “It is constantly overloaded, it currently treats 415 equivalent inhabitants – which requires permanent vigilance” explains Mélanie Cabanel, general director of services at the water union.
The new structure will make it possible to purify twice as much twice as much wastewater. “By calibrating it to 650 inhabitants, we absorb the current surplus, the future premises of the activity zone (equivalent to 160 inhabitants) and we still have a margin for the reception of future residents” continues the director.
Beds planted with reeds
The originality of the project lies in its ecological dimension since the choice was made in favor of a station of type beds planted with reeds. “It was about recreating a natural environment for infiltration and purification by the soil” explains Mélanie Cabanel. “Technically, it is not more complicated, the method is reliable and inexpensive in energy, but it is a system which requires a lot of land”. The mayor of Ausson, Yves-Pierre Barrau, was therefore happy to cede the surrounding municipal land to the water union, so that the project could be completed.
It therefore remains to carry out the tests before putting this new tool into service. As for the old wastewater treatment plant, it will disappear from the landscape.
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