Title: Colloidal surface interactions and membrane fouling: Investigations at pore scale
Authors: P. Bacchin a,b, A. Marty a,b, P. Duru c,d, M. Meireles a,b, P. Aimar a,b
Corresponding author: P. Bacchin
Institute:
aUniversit? de Toulouse, INPT, UPS, Laboratoire de G?nie Chimique, 118 Route de Narbonne, F-31062 Toulouse, France
bCNRS, UMR 5503, F-31062 Toulouse, France
cUniversit? de Toulouse, INPT, UPS, Institut de M?canique des Fluides, Avenue Camille Soula, F-31400 Toulouse, France
dCNRS, UMR 5502, F-31400 Toulouse, FranceJournal: Water research
The original and creativity of paper: The paper aims to provide information for understanding the contribution of surface interaction between particle-membrane and particle-particle on fouling mechanism.
Summary:
- Surface interactions play an important role in fouling forming behavior.
- A slightly changes in surface interaction resulted in a big different clogging pattern.
- Hydrophilic material showed low collection efficiency leading only few captured particle on membrane surface.
- Hydrophobic material showed that the arches formation of particle is occurred according to the effect of lateral collisions between particles and membrane surface. The arches formation resulting to a progressive clogging of membrane pore. Later, this arches led to a rapid growth of the deposit on the membrane surface. When the effect of lateral collisions between flowing particles and the bottleneck do not occurred, dendrites formation can be favored phenomenon.
- According to the results, the direct link between hydrophobic/hydrophilic character of material and fouling mechanism could not confirm. Therefore, for the future work, the authors suggested that the simulation for checking the change in particle-membrane surface interaction which leads to the different clogging pattern is needed. Then, the better understanding of fouling behavior will be obtained.
Application & further study: The meaningful information obtained from this paper can lead to the better understanding of fouling mechanism of UF membrane.
By Monruedee Moonkhum
Email: moon@gist.ac.kr
