Journal
SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41598-021-92119-w
Keywords
-
Categories
Funding
- Deutsche Forschungsgemeinschaft through the collaborative research center SFB 985 Functional microgels and microgel systems
- EU
- federal state of North Rhine-Westphalia [EFRE 30 00 883 02]
- Major Research Instrumentation Program accordingto Art.91b GG in the Research Building NGP2 Center for Next Generation Processes and Products [NW1481006]
- DFG [WE 4678/12-1]
Ask authors/readers for more resources
This study examines the behavior of soft particles during the formation and compression of filter cakes in microfluidic model systems. It identifies the importance of considering the compression history in describing filter cake morphology and its properties, bridging the gap between single colloid movements and the filtration process. The visualization of single-particle movements and compression phenomena helps understand how cake-specific permeation resistance and filtration efficiency are influenced.
During soft matter filtration, colloids accumulate in a compressible porous cake layer on top of the membrane surface. The void size between the colloids predominantly defines the cake-specific permeation resistance and the corresponding filtration efficiency. While higher fluxes are beneficial for the process efficiency, they compress the cake and increase permeation resistance. However, it is not fully understood how soft particles behave during cake formation and how their compression influences the overall cake properties. This study visualizes the formation and compression process of soft filter cakes in microfluidic model systems. During cake formation, we analyze single-particle movements inside the filter cake voids and how they interact with the whole filter cake morphology. During cake compression, we visualize reversible and irreversible compression and distinguish the two phenomena. Finally, we confirm the compression phenomena by modeling the soft particle filter cake using a CFD-DEM approach. The results underline the importance of considering the compression history when describing the filter cake morphology and its related properties. Thus, this study links single colloid movements and filter cake compression to the overall cake behavior and narrows the gap between single colloid events and the filtration process.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available