Constructed wetlands are gaining momentum as a powerful tool in river restoration, and that was clear at this year’s River Restoration Centre Conference.
Dr Abi Cousins and Liam Hall (Binnies UK) took to the stage to explore how these systems are being used not just to restore rivers, but also to deliver wider environmental and societal value. Their session focused on the growing role of constructed wetlands as part of a broader Nature-based Solutions toolkit, highlighting how, when designed well, these solutions can simultaneously improve water quality, reduce flood risk, enhance biodiversity and create diverse, resilient habitats.
Rather than presenting theory alone, the session grounded these benefits in real-world application. Drawing on case studies and current best practice, Abi and Liam shared practical insights into what makes these systems work, alongside key considerations needed to successfully integrate them into river restoration schemes.
The high level of interest in this topic was evident. The session drew a full audience and sparked detailed discussion, particularly around emerging challenges such as how constructed wetlands can help manage emerging contaminants. There was also clear curiosity about the wider potential of constructed wetlands, including applications in wastewater treatment and how current regulatory frameworks are evolving to support their use.
Importantly, the conversation also addressed some common misconceptions around wetland systems. Concerns about odour or overly ‘boggy’ conditions were discussed openly, with examples demonstrating how well-designed wetlands are already operating successfully, supported by proven technologies and robust design approaches.
What stood out most was the balance of enthusiasm and critical thinking in the room. Constructed wetlands are not a one-size-fits-all solution, but there is growing recognition of their value when applied thoughtfully as part of a joined-up, catchment-scale approach.
The impact of the session extended beyond the conference itself. Following the event, feedback from across the sector, including recognition from the Wildfowl & Wetlands Trust, highlighted the strength of the presentation, particularly its honest exploration of both opportunities and trade-offs.
As conversations around climate resilience, water quality and biodiversity continue to evolve, constructed wetlands will play an increasingly important role, and the level of engagement at this year’s conference shows the industry is ready to explore that potential further.