Constructed Floating Wetlands – Tasmania
Client
TASWATER
status
Completed
location
Regional Tasmania
industry
Custom
Project Scope
Scope of Works
Scaada was commissioned to design and implement Constructed Floating Wetlands (CFWs) as part of a nature-based water treatment solution for an industrial lagoon system in Tasmania. The initiative aimed to improve water quality, enhance biodiversity, and deliver low-energy erosion control solutions across three waste water facility sites, aligned with sustainability and carbon-reduction goals.
Challenge
The site required a system that could operate within fluctuating water levels and limited access for traditional wetland maintenance. Existing infrastructure constraints meant energy-intensive aeration or pumping systems were not viable, demanding a passive yet effective water treatment and sediment management approach. Wastewater testing was conducted prior to the project starting to gather baseline water quality data that would help inform the most appropriate performance solution.
Project Outcome
Solution
Scaada implemented a modular floating wetland system featuring native emergent and submerged macrophytes. The design leveraged hydroponic principles, allowing plant roots to grow directly into the water column, enhancing sedimentation and nutrient uptake. High-surface-area biofilms formed on root structures, supporting microbial nutrient transformation and reducing pollutants naturally — without power requirements.
Outcome
The floating wetland system delivered measurable improvements in water clarity and nutrient reduction, while lowering greenhouse gas emissions such as methane and CO₂. The project demonstrated a scalable model for nature-based environmental consulting services, promoting circularity, regenerative design, and long-term ecosystem resilience.
