BKT’s Proteus Primary replaces conventional clarification with compact, high-rate biofiltration—removing SS in just 15 minutes, reducing footprint by 85%, and proven across 60+ global wastewater plants.
Proteus Primary is transforming how cities manage wastewater.
This compact, high-rate filtration system replaces traditional primary clarification, achieving carbon diversion, energy savings, and enhanced nutrient removal in a fraction of the footprint.
Proven performance over two decades
Over the past 20 years, Proteus has been applied to more than 60 wastewater treatment plants worldwide, demonstrating exceptional reliability and performance.
Notably, Proteus can filter out SS in just 15 minutes, reducing the footprint by 85% compared to conventional gravity sedimentation tanks that take 2–3 hours.
It achieves higher SS removal rates consistently while using little to no coagulants.
There is no need for membrane or cloth media replacement or cleaning, which makes it especially valuable for large-scale wastewater treatment plants.
Global success stories
Jungnang Facility (Seoul): Reduced the treatment footprint by 80%, residence time by 70%, and enabled the creation of a public park above the underground facility.
Seonam WRRF (Seoul): The Dual-Use Proteus™ treats up to 95 MGD in dry season and 190 MGD in wet weather, consistently meeting nutrient limits.
MMSD (Milwaukee Metropolitan Sanitation District): Black & Veatch is currently finalizing the design for Proteus application. This technology is particularly valuable for utilities facing wet-weather flow challenges or replacing aging facilities, offering stable operation and space efficiency.
Field-proven results
In a California Energy Commission (CEC)-funded demonstration at the Linda County Water District, Proteus was one of four Advanced Primary Treatment (APT) systems evaluated and delivered top performance:
- 65% tCOD removal (highest among all systems)
- 85% TSS removal (best field performance)
These results are now officially recognized through objective comparison, confirming Proteus as a new benchmark for sustainable primary treatment.
Explore how this technology is transforming wastewater into a resource for the future.
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