US 12,226,712 B2
Sump pump system and methods for removing synthetic ester-based fluids from an emulsion
William J. Gannon, Northford, CT (US); David Tomlinson, Cheshire, CT (US); and Paul Melaccio, Clinton, CT (US)
Assigned to Solidification Products International, INC., Northford, CT (US)
Filed by Solidification Products International, Inc., Northford, CT (US)
Filed on Sep. 30, 2021, as Appl. No. 17/490,781.
Claims priority of provisional application 63/085,673, filed on Sep. 30, 2020.
Prior Publication US 2022/0096963 A1, Mar. 31, 2022
Int. Cl. B01D 17/04 (2006.01); B01D 17/02 (2006.01); C02F 1/28 (2023.01); C02F 1/40 (2023.01); C02F 101/32 (2006.01); C02F 103/00 (2006.01)
CPC B01D 17/045 (2013.01) [B01D 17/0202 (2013.01); C02F 1/28 (2013.01); C02F 1/40 (2013.01); C02F 2101/32 (2013.01); C02F 2103/001 (2013.01); C02F 2201/005 (2013.01); C02F 2201/006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A sump pump system for filtration of synthetic ester-based fluids from an emulsion, comprising:
a sump pump barrier having an outlet conduit for flow of fluid therethrough, the sump pump barrier comprising:
a housing; and
including a filter media housing containing hydrocarbon absorption media;
a polishing filter apparatus including a polishing filter disposed in a polishing filter housing, the polishing filter apparatus having:
an inlet conduit and outlet conduit, the polishing filter inlet conduit fluidly connected to the sump pump barrier outlet conduit for the ingress of the fluid from the sump pump barrier into the polishing filter apparatus, the polishing filter outlet conduit for the egress of resultant filtered fluid; and
said polishing filter in fluid communication with the polishing filter inlet conduit, the polishing filter having:
a polishing filter cartridge disposed therein, the polishing filter cartridge containing a hydrophilic composition for the removal of synthetic ester-based fluid having a surface tension dissimilar to water, the hydrophilic composition having a surface energy greater than or equal to 35 dynes per centimeter, the hydrophilic composition having a porosity of about 0.2 μm to about 20 μm;
wherein fluid flows through the sump pump barrier and into the polishing filter housing via the sump pump barrier outlet conduit and polishing filter inlet conduit, and into the polishing filter, and is then filtered via the polishing filter cartridge within the polishing filter housing;
wherein resultant filtered fluid exiting the polishing filter housing via the polishing filter outlet conduit contains less than 5 ppm of said synthetic ester-based fluids.