US 12,007,316 B2
Pulse-modulated periodic backflush for clearance of fouling layers in dead-end filtration systems
Aaron C. Enten, Atlanta, GA (US); and Todd Sulchek, Atlanta, GA (US)
Assigned to Georgia Tech Research Corporation, Atlanta, GA (US)
Appl. No. 16/965,111
Filed by Georgia Tech Research Corporation, Atlanta, GA (US)
PCT Filed Jan. 30, 2019, PCT No. PCT/US2019/015782
§ 371(c)(1), (2) Date Jul. 27, 2020,
PCT Pub. No. WO2019/152476, PCT Pub. Date Aug. 8, 2019.
Claims priority of provisional application 62/623,602, filed on Jan. 30, 2018.
Prior Publication US 2020/0363300 A1, Nov. 19, 2020
Int. Cl. G01N 1/34 (2006.01); B01D 61/18 (2006.01); B01D 61/22 (2006.01); B01D 63/08 (2006.01); C12M 1/26 (2006.01); C12M 3/00 (2006.01); G01N 1/40 (2006.01)
CPC G01N 1/34 (2013.01) [B01D 61/18 (2013.01); B01D 61/22 (2013.01); B01D 63/087 (2013.01); C12M 21/08 (2013.01); C12M 33/14 (2013.01); G01N 1/4005 (2013.01); B01D 2311/16 (2013.01); B01D 2315/08 (2013.01); G01N 2001/4088 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A filtration system comprising:
a channel having an inlet and an outlet;
a membrane positioned within the channel between the inlet and the outlet; and
a controller configured to cycle α flow of a volume of fluid based on a volumetric flow ratio from flowing in a forward direction through the membrane at a volume of fluid flow Vf, to flowing in a reverse direction through the membrane at a volume of fluid flow Vr;
wherein the forward direction of fluid flow is the direction from the inlet toward the membrane;
wherein the reverse direction of fluid flow is the direction from the outlet toward the membrane; and
wherein the volumetric flow ratio is equal to

OG Complex Work Unit Math