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

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 £

One stage of reed beds fed with raw sewage assures primary and secondary treatment for 1200 People Equivalent, followed by a trickling filter for polishing and nitrification. A tertiary UV treatment enables a pathogens removal by 4 U log.

2-stage Vertical Flow Constructed Wetland for the treatment of raw domestic sewage (French system) for 1360 people-equivalent adapted to the local resources and climate with UV tertiary treatment.

Aerated wetland for a hotel in Antwerp, Belgium

Aerated wetland 1,650 m² for treatment of fruit peeling company.

Vertical flow constructed wetland, treating domestic wastewater from 2 streets in the rural area around Aalter, Belgium

French VF+ HF + FWS treatment plant for treating the wastewater produced by the winery

Client: Nordborg Municipality
Location: Nordborg, Denmark
Established: 2003
Number of basins: 10
Sludge type: Activated sludge and digested sludge
Sludge volume: 350 tonnes DS/year
PE, amount: 15000

"Zero Emission" would be the general goal for sustainability. Especially for industrial production. Tertiary treatment with constructed wetlands may be a proper solution for closing the loop. The new treatment wetland at Changshu Advanced Materials Industrial Park, Haiyu Town, Jiangsu Province, China, is not only reclaiming water. It is a stepping stone for humans searching nature and for endangered species within a widely industrialized zone. Designed as a beautiful park it provides recreational functions and serves as buffer stripe between chemical industries and urban areas.

The wetland visitor center with its terraces on the roof and near the water level reveals a stunning new perspective. Intersted visitors will be given looks inside of the wetland when entering the exhibition on the first floor. Accomplished with a water laboratory and wetland control room the Changshu AMIP wetland center is a perfect place for training and dissemination of environmental solutions.