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.

Client: Haslev Municipality
Location: Haslev, Denmark
Number of basins: 8
Sludge type: Active
Sludge volume per year: 500 tonnes DS/year
PE, amount: 8,000

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

Grenoble – urban park Ouagadougou: a 1 ha urban park with reed bed filters and surface flow wetlands collecting and treating stormwater runoff from the roofs of buildings and from adjacent roads in order to meet irrigation needs of the park and to reduce discharge of stormwater into the municipal sewer system. This project was the laureate of the NOVATECH 2013 international conference of sustainable urban drainage award



Bezannes : a 8000 m² artificial pond plus 3500 m² of reed bed filters and 1600 m² of wetlands were created to treat stormwater runoff from a large non-residential area.

Client: Greve Municipality

Location: Mosede, Denmark

Established: 1999

Number of basins: 10

Sludge type: Activated sludge

Sludge volume: 1,000 tonnes DS/year

PE, amount: 60,000


A ten years old system treating the wastewater produced by a winery in Central Italy. Cecchi is a famous wine producer in Italy and the production is certified ISO14001; all the wastewater produced by the "bottling department", located in Castellina in Chianti, Province of Siena, is appropriately treated before to be discharged in a nearby stream by a multistage constructed wetland.

Client: Northumbrian Water
Location: Hanningfield, UK
Established: 2012
Project period: 2010-2012
Number of basins: 16
Sludge type: Water works sludge
Sludge production: 1,275 tonnes DS/year
PE, amount: 1.5 - 2.0 million
Construction costs: approxiamtely 6 million £

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.

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.

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