Technology Spotlight

What is your technology?
The Proteus system (powered by Tomorrow Water’s BBF technology) uses floating polypropylene media to actively filter primary influent and/or wet weather flows, reducing the TSS and BOD loads going to secondary treatment trains and increasing carbon capture in the primary stage. The system can achieve 60-85% removal of primary suspended solids and 30-50% of BOD removal without aeration or clarifiers. The system can be installed underground, allowing for maximum beneficial use of available land. The system is fed and backwashed by gravity, and requires no chemical addition when used for primary filtration.

What are the benefits to implementing your technology?

  • Reduce primary treatment footprints by up to 80%.
  • Re-purpose primary clarifiers to increase treatment capacity or add equalization.
  • Increase biogas production through carbon redirection.
  • Reduce aeration costs by reducing carbon entering oxidation basins.
  • Stabilize TSS concentration and chlorine demand in wet weather or CSO flows.
  • Shrink the footprint of wet weather and CSO treatment systems.
  • Move treatment processes underground to make land available for redevelopment or additional processes.

Has the technology been tested, demonstrated, or implemented anywhere to date?
A Proteus primary filtration system has been operating in a 66 million gallon per day (MGD) treatment train in Seoul, South Korea since October of 2017. The same treatment plant also includes a 132 MGD Proteus system for treatment of wet weather flows, and a 66 MGD secondary/BNR biofilter train based on Proteus technology. Another 200 MGD wet weather flow treatment plant is currently under construction in Seonam, South Korea, and will be operational in February of 2019. Additional demonstration pilots have been conducted overseas, and Tomorrow Water is currently planning its first demonstration projects for Proteus technology in the US.

What are some of the next steps needed to advance the technology?
The Proteus technology is ready for implementation at scales of up to 400 MGD in North America and worldwide. Currently, Tomorrow Water is seeking demonstration sites and both retrofit and greenfield commercial installations at space-limited facilities or plants seeking additional equalization, aerobic treatment capacity or carbon diversion.

How has LIFT helped, or how can LIFT help?
LIFT has provided opportunities to introduce the Proteus technology on its LIFT Link platform. Tomorrow Water is currently preparing submissions for LIFT’s 2019 research grants in order to fund testing of Proteus technology under North American TSS loads and in secondary treatment configurations for wet weather flows. We seek additional opportunities to spread the word about this unique technology in upcoming forums, webcasts, etc.
For more information please contact:

For more information, please contact:

Jon Liberzon
Vice President, Business Development
Tomorrow Water (BKT)