Two stage vertical flow wetland with recirculation. The system treats the wastewater from the ecological office building. The treated wastewater is reused for toilet flushing.

The municipal centralised treatment plant (a classic activated sludge technology) for the wastewater produced by the municipality of Jesi (Ancona province – central Italy) has been upgraded in the year 2002, with the realisation of a new “nitrification-denitrification” compartment and a hybrid Constructed Wetland as polishing stage. 

Large treatment wetland in the northwest of France, near the city of Le Mans,  treating 4000 PE and also large amounts of storm and drainage water. Zero surface water discharge in summer. 

Two vertical flow wetlands. One is a circulation system treating the pond water. The other treats the wastewater from the outside toilets

Vertical flow reed bed filter (French system) followed by a trickling filter and a treatment with apatite treat the pollution of raw domestic sewage. Capacity : 1500 p.e. Vegetated effluent discharge area before final reject into the small river "Merderic".

One of the largest and most efficient wastewater treatment plant with french system reed bed filter in France.

Nominal capacity : 4000 p.e. with an extension to 6000 p.e. 

Saint Germain sur Ille : a 500 PE waste stabilization pond boosted to 900 PE by addition of reed bed filters with high standards for phosphorus and total nitrogen removal.

Aerated wetland for a hotel in Antwerp, Belgium

Hollange : a 432 m², vertical flow reed bed (French system) plus a 288 m² second stage unsaturated vertical flow filter, and a 1200 m² vegetated polishing zone treating 102 m3/d of domestic effluent.

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