Particle movements provoke avalanche-like compaction in soft colloid filter cakes.

ABSTRACT: 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. Durin

SUBMITTER: Luken A 

PROVIDER: S-EPMC8213765 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature