Whey protein fouling of large pore-size ceramic microfiltration membranes at small cross-flow velocity

Application of a membrane technology to remove bacteriophages from whey

“…However, contrary to these findings, the membrane resistance of the 500 kDa membrane only increased until cycle 1 and reached a constant value of 3.47 Â 10 11 m À1 for successive filtration cycles (n ¼ 2e4). These results are in accordance with previous studies, where an increase in membrane resistance was reported after the first filtration cycle until it reached a stable state after multiple fouling and cleaning cycles (Blanpain-Avet et al, 2004;Mourouzidis-Mourouzis & Karabelas, 2008;Rezaei, Ashtiani, & Fouladitajar, 2011). At the beginning of a series of filtration cycles, an irreversible fouling occurred during filtration, due to deposition of protein particles and aggregates on or within the membrane, which could not be removed during cleaning process and backwashing.…”

Effect of pH, transmembrane pressure and whey proteins on the properties of casein micelle deposit layers

“…Hence, it can be assumed that CM deposit formation in presence of the entire WP fraction follows a comparable molecular fouling mechanism. From the results presented above, the question arises whether a cross-linking reaction induces an inter-micellar crosslinking by WPs as it is known from deposit layers formed during whey and WP micro-and ultrafiltration [33,[40][41][42][43][44]. In this case, the diffusively reversible deposit layer share would be reduced and gel-like structure would increase.…”

Fouling behavior and performance of microfiltration membranes for whey treatment in steady and unsteady-state conditions

“…Besides, it is well accepted in the literature (Caric et al, 2000;Martín et al, 2002) that the irreversible fouling depends on the adsorption and the clogging on and/or within the membrane pores. Furthermore, the main irreversible fouling resistance is for the first cycle of membrane use (Mourouzidis-Mourouzis and Karabelas, 2008). Therefore, for studies in which the same membrane has been used for all experiments, the irreversible fouling resistance may be small and also constant among all tests, as indicated in Fig.…”