US 11,952,294 B2
System and process for removing polyfluorinated pollutants from water
Ricky James Legg, Redwood Park (AU)
Assigned to Enviropacific Services Limited, Macquarie Park (AU)
Appl. No. 17/264,402
Filed by MEMBRANE SYSTEMS AUSTRALIA PTY LTD, Golden Grove (AU)
PCT Filed Jul. 31, 2019, PCT No. PCT/AU2019/000091
§ 371(c)(1), (2) Date Jan. 29, 2021,
PCT Pub. No. WO2020/023993, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 2018902802 (AU), filed on Aug. 1, 2018.
Prior Publication US 2021/0309543 A1, Oct. 7, 2021
Int. Cl. B01D 61/14 (2006.01); B01D 65/02 (2006.01); B01D 69/02 (2006.01); B01D 69/08 (2006.01); B01D 71/34 (2006.01); C02F 1/28 (2023.01); C02F 1/44 (2023.01); C02F 101/36 (2006.01); C02F 103/00 (2006.01); C02F 103/06 (2006.01)
CPC C02F 1/444 (2013.01) [B01D 61/145 (2013.01); B01D 61/146 (2022.08); B01D 65/02 (2013.01); B01D 69/02 (2013.01); B01D 69/08 (2013.01); B01D 71/34 (2013.01); C02F 1/283 (2013.01); B01D 2311/2626 (2013.01); B01D 2317/04 (2013.01); B01D 2317/06 (2013.01); B01D 2321/04 (2013.01); B01D 2321/16 (2013.01); B01D 2321/185 (2013.01); B01D 2325/02 (2013.01); C02F 2101/36 (2013.01); C02F 2103/007 (2013.01); C02F 2103/06 (2013.01); C02F 2301/08 (2013.01); C02F 2303/16 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A process for decontaminating PFAS contaminated water, comprising:
passing PFAS contaminated surface water, groundwater, bore water, river water, or creek water having a total PFAS concentration of less than 1 ppm through three to thirty ultrafiltration membranes connected in parallel under conditions to remove one or more non-PFAS contaminant from the PFAS contaminated water to provide partially purified water containing soluble PFAS contaminants; and
directly passing the partially purified water through at least one sorption unit comprising a sorbent material under conditions to remove substantially all PFAS contaminants from the partially purified water to provide purified water that is substantially free from PFAS contamination.