Tablyn Park, Minnesota
SAFF20 PFAS remediation plant at Tablyn park

Location: St Paul, Minnesota

Installation date: October 2022

Client: Minnesota Pollution Control Agency (MPCA)

Site type: Public park

Application: Groundwater and surface water

Product: SAFF® 20

Capacity: 200-300m3/day

The Solution:

  • EPOC Enviro has been awarded a contract to install its Surface Active Foam Fractionation (SAFF®) containerized PFAS water treatment plant at a target site in Minnesota USA, by the Minnesota Pollution Control Agency (MPCA). The MPCA is the custodian of a landmark settlement with 3M, making the US clean-up site one of the highest profile PFAS impacted locations in the world. The SAFF unit will be publicly deployed on a semi-trailer and towed to several PFAS impacted sites within the Minnesota locality, allowing citizens to see the PFAS being remediated in situ, and signalling the commencement of waterway restoration.

  • The water’s low-foaming properties necessitated a comprehensive reassessment of the fractionation process.

  • Water sucessfully treated as of June 2023: 6ML

     

Treatment Results:

Surface Water Treatment Results:

PFAS Series Feedwater Conc. (1) (ng/l) Treated Water Results (ng/l) Treated Water Removal Percentage (2)
PFOS1,51021.499%
PFOA73536.595.04%
PFHxS899.2289.67%

Groundwater Treatment Results:

PFAS Series Feedwater Conc. (1) (ng/l) Treated Water Results (ng/l) Treated Water Removal Percentage (2)
PFOS9926.9599%
PFOA36226.190.70%
PFHxS429.0578.75%

(1) Approx. 30,000m3 feedwater treated for commissioning phase.
(2) Removal percentage (%R) is calculated by comparing treatment results to feed and trace lab LOR (1.0 ng/l).
(3) Ambient temperatures were approx. -20 degrees Celsius at time of testing.

 

If you have any questions or would like to speak with one of our experts