M-Spirelli – Twisted membrane spacer for low fouling and increased masstransport/pressure loss ratio
Membrane processes suffer from concentration
polarization and fouling. Further, mass transport is often hindered by fouling, caused by cake formation on the membrane, pore blockage and other effects. Concentration polarization as well as fouling can be at least partly controlled by the fluid flow conditions across the membrane surface. High shear forces at the membrane result in partial removal of fouling layers on the membrane and minimization of concentration polarization. In membrane systems employing flat sheet membranes, such as spiral wound modules or electrodialysis membrane stacks, spacers are introduced into the flow channel, which int roduce eddy mixing. However, current spacer designs are associated with relatively high increase of pressure loss within the feed channel at only moderate increase of mass transfer. Scientist of RWTH Aachen University developed a microengineered membrane spacer (the M-Spirelli) with helical strings, which displays increased mass transfer at low pressure loss. It is expected that it further minimizes fouling due to high shear stress at the membrane surface. The M-Spirelli membrane spacer can be used in any membrane application employing flat sheet membranes.
Further Information: PDF
PROvendis GmbH
Phone: +49 (0)208/94105 10
Contact
Dipl.-Ing. Alfred Schillert
Media Contact
All latest news from the category: Technology Offerings
Newest articles
New insights into the mechanisms of chromosome segregation errors
Research on centromere structure… Researchers from the Kops group in collaboration with researchers from the University of Edinburgh, made a surprising new discovery in the structure of the centromere, a structure…
“Topological hall effect” in two-dimensional quantum magnets
In a recent study published in Nature Physics, researchers from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, together with researchers of University of Science and Technology of China, have introduced the…
Coating Technologies of the Future
LZH and Cutting Edge Coatings at Optatec… At Optatec 2024, the Laser Zentrum Hannover e.V. (LZH) and Cutting Edge Coatings GmbH (CEC) present new opportunities in coating technologies for the…