Floating Wetland Systems
Floating Treatment Wetlands (FTWs) use floating pontoons made from recycled PET, supporting hydroponically grown native plant species. These systems treat the water column through natural bioremediation processes, involving both aerobic and anaerobic activity to capture, break down and transform organic matter, contaminants and nutrients, and maintain healthy oxygen levels in the water body.
Pathogen Removal and Water Quality
FTWs improve water clarity and remove contaminants through the roots and biofilm extending below the floating structures. They are effective at remediating total nitrogen, potassium, phosphorus, and sediment, capturing up to 90% of suspended solids.
Biodiversity and Environmental Benefits
FTWs offer several other benefits, including odour reduction, increased dissolved oxygen levels, and cooler water temperatures in summer, which help to reduce evaporation. They also enhance biodiversity by creating habitats for aquatic species, insects, and birds.
Scalable and Customisable Solutions
FTWs can be scaled and customised to meet project requirements. They are flexible, allowing for future de-sludging without shutdown, and can successfully operate without connection to wider reticulation. Performance is influenced by factors of size of installation, water flow, contact time and temperature, which are set out in the FAQ section.
Guarantee and Operating Life
All FTWs come with a one-year guarantee, including the replacement of plant material and checking the fixing details and the first annual foliage canopy trim. We provide training for on-site staff, and ongoing support is available by phone or email at a local level. The expected operating life of an installed FTW is 20+ years, if maintenance is undertaken.
Buoyancy and Aesthetic Flexibility
FTWs are safe for both public and private applications. A rated buoyancy of 70 kilograms per square metre provides for safe maintenance and unofficial access. Pontoons can be custom-shaped to fit irregular spaces or joined to fit channels or island shapes that are in scale with surroundings. The foliage provides a strong visual contrast and feature in built and natural environments.
Maintenance
FTW maintenance is minimal but important and involves annual foliage trimming, as well as checking mooring fixtures. Foliage requires removal.
Proven, Sustainable Solutions
FTWs offer a sustainable, cost-effective solution for water treatment. Designed and developed in New Zealand for local conditions, FTWs deliver proven results with a strong track record of success and innovation. We welcome the opportunity to discuss how they can be applied to your site.