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.

A vertical flow reed bed (French system) and a vegetated polishing zone (surface flow wetland)  treating 117m3/d of domestic effluent from a village with variable population

Recirculated vertical flow French system for 800 p.e. with polishing in a "natural" horizontal flow wetland 


Beautiful two stage French system treating the wastewater of a hamlet in the outskirts of Paris

The Badboot in Antwerp. Treatment of sanitary wastewater combined with wastewater from the swimming pool filters. FBA-type (aerated).

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".

Llanfair PG: A 440 m2, vertical flow reed bed treating 55m3/d of domestic effluent from a residential education centre.

Pouembout : a 250 p.e. reed bed filter was created to replace a deficient waste stabilization pond.

Saint Sulpice la Foret : a 1000 PE waste stabilization pond boosted to 1950 PE by addition of reed bed filters. A 2,400 m², vertical flow reed bed (French system), a 1,950 m² second stage vertical flow, unsaturated plus a 10,000 m² of willow plantation and a 5,000 m² pond treating 400 m3/d of domestic effluent.

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. 

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