Figure 4
From: Investigating fouling at the pore-scale using a microfluidic membrane mimic filtration system
Comparison of the constant-pressure fouling behaviour for three types of foulants at the same pressure (689 mbar). (a) Flux vs. time plot showing more severe flux decline for the case of combined fouling (PAM (0.2%):PS (0.2%) = 1:4) than individual organic and colloidal fouling (PAM 0.2% & PS 0.2%), (b) corresponding microfluidic images at the end of the filtration process showing (i) Colloidal aggregation at downstream with partial pore blocking and cake filtration for PS filtration, (ii) pore blocking for PAM filtration, and (iii) streamer formation at downstream for the case of combined fouling.
