A 10 years old CW multistage system (5 stages: Imhoff+HF+VF+HF+FWS) treating the municipal wastewater for a town of 3500 inhabitants.
A horizontal subsurface flow constructed wetland treating the wastewater from a housing scheme in the tropical island of Mayotte
Orelle (French Alps): a 1200 m², vertical flow reed bed (French system) plus a 800 m² second stage unsaturated vertical flow reed bed for domestic effluent under cold climate conditions.
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.
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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".