Blending nature-based solutions with smart controls for better water management
Purpose
To evaluate the performance of the eco-WEIR™ system as a smart, nature-based pretreatment technology for stormwater, enhancing pollutant removal and supporting environmental recharge through improved flow control and filtration.
Description
The eco-WEIR™ system—developed by Dr. Jennifer Cherrier of The City University of New York and patented by Waterway Ecologics—brings together green infrastructure and smart sensor technology to enhance stormwater treatment and reuse. Installed at Water TAP, this modular, vegetated sand filter includes a smart weir that actively manages water retention to improve pollutant removal and support water reuse. The system’s two-layer design promotes both aerobic and anaerobic treatment, enabling robust removal of nutrients and contaminants. At CSU Spur, it’s deployed in tandem with the Minus ultrafiltration system to study its effectiveness as a pretreatment stage for various water sources onsite.
Impact
By combining nature-based design with active flow control, eco-WEIR™ demonstrates how smart green infrastructure can improve water quality and support circular water strategies. Its modular form makes it adaptable to urban settings while offering a scalable, sustainable treatment option.
Partners
This demonstration project combines academic innovation with field application: