Joining our recent SQIDEP verification for FlowFilter and Vortceptor, the StormSack (now known as AtlanTrap) is now verified through Stormwater Australia’s robust testing evaluation pathway – the Stormwater Quality Improvement Device Evaluation Protocol.
The StormSack is an at-source Gross Pollutant Trap (GPT) that can be employed in new or existing developments to capture urban pollutants. Its innovative design provides a cost-effective, low-impact treatment solution for stormwater drainage applications.
Designed to rest on the flanges of conventional catch basin frames and capture pollutants close to surface level, StormSack is deployed directly below grates and allows for ease of installation and maintenance. It joins our SQIDEP-verified range, which includes the Vortceptor, FlowFilter, FlowGuard, AtlanBasin and AtlanFilter (half-height and full-height models).
The StormSack’s pollution removal efficiencies are now SQIDEP-verified with removal rates of 100% Gross Pollutants (GP), 45% Total Suspended Solids (TSS), 47% Total Phosphorus (TP), and 25% Total Nitrogen (TN). These pollutant removal ratings are consistent across a range of pit dimensions from 450x450mm (10 LPS) to 1200x1200mm (65 LPS).
Key benefits of the AtlanTrap (formerly StormSack) include –
- Can be modelled in MUSIC in conjunction with bioretention or other Atlan systems
- Low-cost gross pollutant capture (GPT)
- Quick and easy installation
- Simple maintenance
- At-source pollution removal
- Adjustable to custom pit sizes
Capturing Microplastics in Urban Catchments
Our collaborative research has also shown StormSack’s (now known as AtlanTrap) efficacy for microplastic removal – including tyre-wear and road-wear particles. Data from these studies showed significant decreases in microplastic levels in treated stormwater after passing through the device.
Research demonstrated that filtration strategies utilising the StormSack improve water quality outcomes and capture 35 to 88% of microplastic concentrations – varying according to site-specifics such as traffic patterns and variability in the road surface.
These capabilities enhance StormSack’s reduction of stormwater pollutants in applications such as car parks, townhouses, transport yards and sites with road access.
SQIDEP: A Robust Framework for Verifying Device Performance
The Stormwater Quality Improvement Device Evaluation Protocol is an industry-leading evaluation process developed by Stormwater Australia – which ensures the rigorous testing and assessment of the pollution removal capabilities of stormwater devices.
SQIDEP ensures that the pollution removal rates of verified devices are demonstrated through a uniform set of evaluation criteria and provides an independent, uniform and robust framework for device assessment.
Device verification is performed by an independent selection of researchers, universities, and specialist stormwater consultants – ensuring that field-testing and reporting of device performance is reliably demonstrated. The SQIDEP protocol ensures that verified products are effective devices for stormwater management.
Clean waterways are a right, not a privilege. Atlan Stormwater supports SQIDEP and its custodianship by Stormwater Australia. This innovative protocol helps councils, engineers and developers select appropriate devices to improve water quality outcomes – preserving Joy in Water for future generations.
AtlanTrap (formerly known as StormSack) is our latest development in at-source GPT technology. AtlanTrap maintains the existing treatment performance capabilities of the Atlan StormSack, while providing redesigned device profile, ease of installation, and incorporation of the Atlan TrapCatch bracket sytem.