Highlights: Direct potable reuse. Improved serviceability. Parallel membranes. Improved control system. PVs vertically oriented to fit into shipping container with other unit processes. Our team, Circular City, won the top prize of $2M CAD.
End-user: Department of National Defence’s (DND) Innovation for Defense Excellend and Security (IDEaS) program
Partners: Innocorps Research Corporation, Circular City
After a year of testing at the Yuma Desalting Plant and some major upgrades, we crated up our el Titan brine concentrator in July 2023 to ship up to Alberta, Canada and compete in the Pop Up City Contest.
Organized by the Department of National Defence, the Pop Up City Contest is a challenge to more efficiently provide necessary utilities (water, energy, and waste management) to personnel in Relocatable Temporary Camps (RTCs). We partnered with Innocorps Research Corporation who led Circular City, one of three finalist teams.
By recovering potable water from the camp’s wastewater stream in an energy-efficient manner without membrane scaling we helped contribute to each of the contest’s targets:
At CFB Suffield we got el Titan up and running for a seven day demonstration. We integrated into the Circular City wastewater treatment train. The feed was a mixture of blackwater, greywater, and surface water. el Titan treated divalent-rich NF concentrate to extract additional potable water and reduce final brine discharge.
After advanced oxidation, UV, and remineralization the water was good to go!
Our team, Circular City, was announced in November as the winner of the Pop-Up City Contest. We split the $2M CAD grand prize with our fellow team members.
|Feed||3 g/kg (divalent-rich)|
|Recovery||up to 90%|
|Production||up to 3.5 gpm | 5040 gpd | 19 m3/day|
|Flux||up to 50 LMH | 29 gfd|
|Membranes||Toray 4” BWRO and Aquamembranes 4” BWRO|
|Membrane array||2 in parallel|
|Circulation flow||5.5 gpm | 1.2 m3/h|
|Pressure limit||34 bar | 500 psi|