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Impact of polysaccharide and protein interactions on membrane fouling: Particle deposition and layer formation by Chao Zhang; Qi Bao; Huanan Wu; Mingshuai Shao; Xue Wang; Qiyong Xu is a Environmental Science article available to read on EtoBox.

What is Impact of polysaccharide and protein interactions on membrane fouling: Particle deposition and layer formation about?

Membrane fouling, which limits the application of membrane bioreactors, has received considerable research attention in recent years. In this work, filtration modeling was performed in combination with surface plasmon resonance (SPR) analysis to investigate the membrane fouling mechanism. Sodium alginate (SA) and bovine serum albumin (BSA) were used to perform dead-end filtration on hydrophilic and hydrophobic poly (vinylidene fluoride) (PVDF) membranes. The initial foulant deposition and layer formation on membranes as well as the interaction between the BSA and SA were comprehensively analyzed. Results indicated that during SA filtration, initial fouling on hydrophilic membranes were primarily attributed to the particle–membrane interactions, while the fouling on the hydrophobic membrane were dominantly caused by the interactions among SA particles. The interaction between BSA and SA led to more severe membrane fouling and hydrophobic membrane was more sensitive to it, especially in the initial filtration process. The SPR results helped clarify the in-situ deposition behavior of BSA and SA particles on the PVDF surface. Compared to SA, BSA adsorbed faster on the PVDF membrane, an

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Author

Chao Zhang; Qi Bao; Huanan Wu; Mingshuai Shao; Xue Wang; Qiyong Xu

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)