Effect of Backpulsing and Continuous Surface Cleaning on High-Shear Rotary Membrane System Permeate Flux Performance for Naval Shipboard Wastewaters

Dynamic crossflow filtration with a rotating tubular membrane: Using centripetal force to decrease fouling by buoyant particles

“…Since its conceptual introduction in the late 1960s, DCF has been proposed or applied to separate a broad range of feeds including oil-in-water emulsions (Li et al, 2009;Reed et al, 1997;Viadero Jr et al, 2000) (milk, in particular (Ding et al, 2003;Frappart et al, 2006)); suspensions of latex particles (Mikulášek and Doleček, 1994), glass microspheres (Engler and Wiesner, 2000), yeast (Brou et al, 2002;Lee et al, 1995;Liu et al, 2012), bacterial cells (Frenander and Jönsson, 1996;Kroner and Nissinen, 1988), algae (Ochirkhuyag et al, 2008), and clay (Liu et al, 2012); black liquor (Bhattacharjee and Bhattacharya, 2006); aqueous slurries of SiO 2 (Choi et al, 1999;Engler and Wiesner, 2000) and CaCO 3 (He et al, 2007;Liu et al, 2012;Tu and Ding, 2010); protein solutions (Holeschovsky and Cooney, 1991); pulp (Ochirkhuyag et al, 2008); and navy ship wastewater (Bendick et al, 2014). Although desalination by reverse and forward osmosis (Sherwood et al, 1967) was the initial DCF target and some studies utilized nanofiltration membranes (e.g.…”

“…Typical DCF processes employ vibration (Beier et al, 2006;Genkin et al, 2006) or rotation of disks (Bouzerar et al, 2000;Brou et al, 2002;Ding et al, 2003;Ding et al, 2006;Espina et al, 2008;Frappart et al, 2006;Frenander and Jönsson, 1996;He et al, 2007;Lee et al, 1995;Li et al, 2009;Mänttäri et al, 2006;Sen et al, 2010;Tu and Ding, 2010) or membranes (Aubert et al, 1993;Beaudoin and Jaffrin, 1989;Belfort et al, 1993a;Belfort et al, 1993b;Bendick et al, 2014;Bhattacharjee and Bhattacharya, 2006;Choi et al, 1999;Dolecek et al, 1995 ;Engler and Wiesner, 2000;Hallstrom and Lopez-Leiva, 1978;Holeschovsky and Cooney, 1991;Kaplan and Halley, 1990;Kroner and Nissinen, 1988;Kroner et al, 1987;Liu et al, 2012;Mikulášek and Doleček, 1994;Murase et al, 1991;Ochirkhuyag et al, 2008;Park et al, 1994;Reed et al, 1997;Rock et al, 1986;Sarkar et al, 2011;Sen et al, 2010;Serra and Wiesner, 2000 ;…”

“…In these filters, the feed flows through the annular gap between two concentric cylinders, where the porous membrane is the inner rotating cylinder and an impermeable cylinder is the outer and stationary wall; Taylor vortices that form in such flow channels can greatly enhance membrane performance as demonstrated in applications ranging from blood plasma filtration (Rock et al, 1986) to ultrafiltration of cutting oil emulsions (Vigo et al, 1985). Several studies also employed flat membranes in DCF (Aubert et al, 1993;Bendick et al, 2014;Bhattacharjee and Bhattacharya, 2006;Engler and Wiesner, 2000;Ochirkhuyag et al, 2008;Reed et al, 1997;Sarkar et al, 2011;Sen et al, 2010;Serra and Wiesner, 2000 ;Viadero Jr et al, 2000); in such systems, a membrane mounted on a porous support rotates next to a wall that is stationary or rotating in the opposite direction to enhance shear. Other configurations such as a rotating helical membrane (Liu et al, 2012) and a rotating impermeable tube just upstream of a stationary tubular membrane (Shan, 2010;Shan et al, 2010) have been explored as well.…”

Extensive review about industrial and laboratory dynamic filtration modules: Scientific production, configurations and performances

“…In high shear rotary membrane system (HSR-MS) [151][152][153][154][155], flat round membrane disk packs are attached to the highly porous nylon meshes. A solid disk pack is placed between two meshes and sets on a hollow rotating shaft for permeation channels.…”

“…Bendick et al [150,151] used the zirconium dioxide ceramic MF membrane in HSR-MS to treat shipboard wastewaters (bilge water, blackwater and thermal destruction quench water). They changed different hub sizes resulted in various membrane diameters and different angular speeds of the membrane.…”