The Orhei Constructed Wetland treatment plant, the biggest secondary treatment entirely based on CWs in the world

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.

2-stage vertical flow reed bed filter for the treatment of raw unsettled domestic sewage (French system). Capacity : 1200 People Equivalent. 

Earls Colne: Two 800m2 vertical flow reed beds operated alternately to treat 1,168m3/d of tertiary sewage waste water.

An educational wetland of 30 PE treating the sanitary wastewater of a toilet building.

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

Aerated wetland of 360 m², treating the sanitary waste water from an elementary school.

2-stage vertical flow reed bed filter treating raw domestic sewage (French system) with a capacity of 650 P.E. Treated effluent goes through a filtering ditch and is rejected into the river Bourdic.

Albondon (600 PE) : the first "French system" in Spain, designed and build in 2005 by AKUT and SINT treats the waste water of a town in the foothills of the Sierra Nevada

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