Experimentation and modeling of foulant interaction and reverse osmosis membrane fouling during textile wastewater reclamation

FTIR study of fatty acid fouling of reverse osmosis membranes: Effects of pH, ionic strength, calcium, magnesium and temperature

“…Then the fouling is directly affected by the micelles and the monomers in the mixture. Srisukphun et al [36] believe that the fouling mechanism of surfactant micelles are plugging and covering on membrane surface resembling a particulate fouling. According to the results, though the surfactant micelles plug on the membrane surface, they do not cause the flux decline.…”

Relating organic fouling of reverse osmosis membranes to adsorption during the reclamation of secondary effluents containing methylene blue and rhodamine B

“…9b suggest that the aggregate size and size distribution are strongly influenced by the RB concentration. At the high concentration, the RB molecules assemble as micelle-like structures that do not decrease flux [5,16]. To further verify the results, the contact angles of RO membranes fouled by various RB concentrations are conducted.…”

“…Several fouling mechanisms have been described in the literature [5][6][7]. Fouling can occur in two ways: fouling layer formation and adsorption of foulants [8].…”

“…But the fouling is more severe due to the synergistic effect [10]. Meanwhile, the surfactants fouling will decrease when the concentration is higher than critical micelle concentration (CMC) due to the micellisation [5]. Initial fouling is controlled by the interaction between the bulk foulants and the membrane surface, while intermolecular adhesion between the bulk foulants and the foulants adsorbed on the membrane surface primarily controls the evolution of the fouling layer [2].…”

Textiles

“…The various filtration resistances were calculated in order to determine the principal mechanism for UF and NF processes. Cake formation constant were investigated by using linearized forms of cake filtration equations obtained by Wiesner and Aptel Srisukphun et al (2009). investigated the relationship between foulant interactions and fouling of reverse osmosis membrane during textile wastewater reclamation.…”