Figure 1
From: Unravelling colloid filter cake motions in membrane cleaning procedures
(a) On-line filter cake visualization by confocal microscopy in cross-flow constant pressure filtration with a labeled membrane, filter cake, and bulk. (b) Filter cake mobility experiment under cross-flow filtration. The image shows the persistent photo-bleached region (black stripe) in cross section and top view (square) not moving during cross-flow filtration. The membrane position is indicated with a grey dashed line. (c) Magnification of the cross-section with 63\(\times \) lens enables identification of individual microgels. The membrane position is indicated with a grey dashed line. (d) A representative slice taken parallel to the membrane, demonstrating the morphology of the filter cake with highly ordered domains highlighted in grey.
