229 citations · 1.4k across the 23 of their papers we have counts for
9 papers · 1 filter
A mini-module with built-in spacers for high-throughput ultrafiltration
Kristina Baitalow, Denis Wypysek, Martin Leuthold +3
Ultrafiltration membrane modules suffer from a permeate flow decrease arising during filtration and caused by concentration polarization and fouling in, e.g., fermentation broth pu…
How does porosity heterogeneity affect the transport properties of multibore filtration membranes?
Denis Wypysek, Deniz Rall, Tobias Neef +3
The prediction of pressure and flow distributions inside porous membranes is important if the geometry deviates from single-bore tubular geometries. This task remains challenging,…
Direct 3D observation and unraveling of electroconvection phenomena during concentration polarization at ion-exchange membranes
Felix Stockmeier, Michael Schatz, Malte Habermann +3
A decade ago, two-dimensional microscopic flow visualization proved the theoretically predicted existence of electroconvection roles as well as their decisive role in destabilizing…
Fouling mitigation in tubular membranes by 3D-printed turbulence promoters
Sarah Armbruster, Oskar Cheong, Jonas Lölsberg +3
Despite intensive research, fouling remains a severe problem in membrane filtration. It is often controlled by applying turbulent flow which requires a higher energy consumption. S…
Sinusoidal shaped hollow fibers for enhanced mass transfer
Tobias Luelf, Maik Tepper, Hans Breisig +1
Inducing secondary flows and vortices is known to enhance mass transport. They can be imposed by structured flow channels for instance. In particular, these vortices reduce fouling…
On the coupling between buoyancy forces and electroconvective instability near ion-selective surfaces
Elif Karatay, Matthias Wessling, Ali Mani
Recent investigations have revealed that ion transport from aqueous electrolytes to ion-selective surfaces is subject to electroconvective instability that stems from coupling of h…