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.
The Orhei Constructed Wetland treatment plant, the biggest secondary treatment entirely based on CWs in the world
Client: Kolding Municipality
Location:Kolding, Denmark
Established: 1998
Number of basins: 13
Sludge type:Activated sludge and digested sludge
Sludge volume: 2,000 tonnes DS/year
PE, amount: 125,000
In 2001, IRIDRA managed the design of a constructed wetlands system for the wine-producing firm “Tenuta dell’Ornellaia”, Leghorn, Italy. The system consists of vertical flow constructed wetlands (SFS-v) as a first stage followed by a second SFS-h stage with recirculation to the first stage and then by a single FWS. It treats wastewater from the firm, which allows water to be reused for irrigation
Vertical flow constructed wetland, treating domestic wastewater from 2 streets in the rural area around Aalter, Belgium
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
Treatment of aerobically stabilized sewage sludge from an activated sludge plant (“extended aeration”) – 13 000 p.e.
Location: Skövde, Sweden
Established: 2003
Number of basins: 10
Sludge type: Activated sludge and digested sludge
Sludge volume: 1,200 Tonnes DS/year
PE, amount: 50,000











