Figure 3
From: Investigating fouling at the pore-scale using a microfluidic membrane mimic filtration system
(a) Filtration experiments at constant pressure shows decreasing flux for PS 0.2% as fouling progresses with filtration time. (b) Corresponding microfluidic images show end-result of fouling (120 min). At low pressures, fouling is more like cake filtration at upstream (i)–(ii). At higher pressures more colloidal aggregation are observed at downstream with simultaneous pore blocking and cake filtration (iii)–(iv). (c) Schematic of fouling at low pressure (<345 mbar) and high pressure (>345 mbar) showing the fouling evolution in 60 min.
