Ultrafiltration of palm oil–oleic acid–glycerin solutions: Fouling mechanism identification, fouling mechanism analysis and membrane characterizations

Purification of crude glycerol using a sequential physico-chemical treatment, membrane filtration, and activated charcoal adsorption

“…However, membrane fouling due to cake resistance limits the performance of UF [21]. Angelis et al [22] found a strong dependence between foulant concentration and solution pH for iron oxide ceramic membrane.…”

Determination of fouling mechanisms in polymeric ultrafiltration membranes using residual brines from table olive storage wastewaters as feed

“…Thus, semi-empirical models whose parameters have a physical meaning are usually preferred to explain the fouling phenomena that takes place in membrane processes and to achieve an accurate prediction of permeate flux decline (Vincent Vela et al 2009;Mah et al 2012). Depending on the fouling mechanism, four situations may be described: (a) if the solute particle size is higher than the membrane pore; particles are deposited on the surface of the membrane blocking the entrances of the pores completely; (b) if solute particle and membrane pores size are similar, some membrane pores can be partially blocked; (c) if solute particle size is smaller than membrane pores, inside pores of membrane can be blocked and irreversible fouling may appear; (d) sometimes the fouling layer deposited on the membrane surface may form a cake layer (Ruby Figueroa et al 2011;Corbatón-Báguena et al 2013).…”

A Step Forward to the Characterization of Secondary Effluents to Predict Membrane Fouling in a Subsequent Ultrafiltration

“…Mah et al [44] found that cake filtration was the predominant Hermia's fouling mechanism when conducting ultrafiltration of palm oil, oleic acid and glycerin. They developed a multistage Hermia's fouling model that considered different fouling mechanisms depending on the time considered (e.g., a different model at the beginning and the end of the test).…”