An Integrated Constructed Wetland (ICW) is a multi-disciplinary approach to the total management of contaminated waters, incorporating natural interactions of water, land and air.
VESI Environmental provide designs, construction and management of constructed wetlands for wastewater treatment. Our focus is on delivering a wide range of ecosystem services for the benefit of both humans and the natural environment.
An Integrated Constructed Wetland is series of shallow ponds (generally 4-7) connected by pipework and densely planted with a mix of emergent wetland vegetation.
Effluent is generally pumped from the village or faciilty to a tank or settlement pond where it flows by gravity to each pond before discharge to a stream or river.
ICWs are licenced under the same EPA discharge licence system as traditional wastewater treatment systems.Contact VESI today
Single houses, housing developments/ conglomerations, villages, towns, hotels and commercial/industrial units.
Treatment of runoff waters, wash waters and effluents for dairy, beef, poultry, piggery farms.
Mining, quarrying, food processing, recycling facilities.
Landfill leachate, sludge dewatering, stormwater drainage, golf courses.
Our years of research and practical application allow us to treat effluent efficiently using a variety of methods. These include:
- Through the reduction of flow volume and velocity using dense planting.
- Utilising the slow rate of water movement which aids the settling of pollutant particles. For example, Phosphorus.
- Using atmospheric processes including evapotranspiration and interception.
- Through the trapping of sediment.
- Taking advantage of biochemical processes that take place as water enters, is stored in, or leaves a wetland.
- Including plants that develop a microfilm on their roots that facilitates microbial communities that in turn ‘feed’ on nutrients in the waste-water.
- Utilising anaerobic digestion (along with other processes) which are carried out in the leaf litter that settles to the base of the ponds.
- Maxmising the wetland environment so that it provides opportunities for a diversity of other (non emergent) plants and animals, the interaction of which contributes to the overall biological function of the constructed wetland.