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Effects of ozonation on the permeate flux of nanocrystalline ceramic membranes
Water Research, 2005Titania membranes, with a molecular weight cut-off of 15 kD were used in an ozonation/membrane system that was fed with water from Lake Lansing, which had been pre-filtered through a 0.45 microm glass fiber filter. The application of ozone gas prior to filtration resulted in significant decreases in membrane fouling.
Susan Masten
exaly +3 more sources
Fouling Layer Surface Heterogeneity Improves Permeate Flux
Proceedings of the Water Environment Federation, 2013 In this research, we used modeling to assess the impact of irregular fouling-layer surface morphology (i.e., roughness) on permeate fluxes. Two membrane filtration models, each based on Darcy's Law, were used to predict fluxes for fouling layers with varying degrees of surface irregularity.
Martin, K.J. +3 more
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Analysis of the slip effect on the permeate flux in membrane ultrafiltration
Journal of Membrane Science, 1999 A method for predicting the mass transfer coefficient as well as the limiting permeate flux in membrane ultrafiltration has been found, based upon the boundary-layer theory which takes into account the slip velocity on the membrane surface. The theory presupposes the existence of a slip flow on a porous membrane surface, especially for the limiting ...
H.M Yeh, T.W Cheng
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Permeate flux and fouling resistance in ultrafiltration of depectinized apple juice using ceramic membranes [PDF]
Journal of Food Engineering, 2003 Raw depectinized apple juice was clarified in a laboratory scale ultrafiltration system using ceramic tubular membranes (Tech-Sep Carbosep) with a molecular weight cut-off of 300,000, 50,000, and 30,000 Da.
P. Vukosavljevic (7129268) +2 more
exaly +8 more sources
Effect of permeate flux and tangential flow on membrane fouling for wastewater treatment
Separation and Purification Technology, 2005 Well-controlled membrane filtration experiments were performed to systematically investigate the effect of permeate flux and tangential flow (crossflow) on membrane fouling.
Hyeok Choi +2 more
exaly +2 more sources
Bacterial adhesion onto nanofiltration and reverse osmosis membranes: Effect of permeate flux [PDF]
Water Research, 2014 The influence of permeate flux on bacterial adhesion to NF and RO membranes was examined using two model Pseudomonas species, namely Pseudomonas fluorescens and Pseudomonas putida.
Olivier Habimana, Eoin Casey
exaly +2 more sources
Kinetics of Permeate Flux Decline in Crossflow Membrane Filtration of Colloidal Suspensions
Journal of Colloid and Interface Science, 1997 A series of well-controlled membrane filtration experiments are performed to systematically investigate the dynamic behavior of permeate flux in crossflow membrane filtration of colloidal suspensions.
Seungkwan Hong, Menachem Elimelech
exaly +2 more sources
Improving permeation flux by pulsed reverse osmosis
Chemical Engineering Science, 1974Abstract Pulsed and nonpulsed reverse osmosis experiments were conducted with a sucrose solution in cylindrical cellulose acetate membranes. For pulsing frequencies up to 1 Hz, permeation increases of more than 70 per cent were observed. A simple quasisteady-state theory for concentration polarization based on a film model of mass transfer describes ...
T.J. Kennedy, R.L. Merson, B.J. McCoy
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Unsteady-State Permeate Flux of Crossflow Microfiltration
Separation Science and Technology, 1994Abstract In this study a membrane filtration cell was installed to investigate the variation of permeate flux with filtration time under various operating conditions including crossflow velocity, pressure drop, particle concentration, membrane pore size, particle size, pH, and electrolyte concentration.
DONG-JANG CHANG, SHYH-JYE HWANG
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Explicit expressions for permeate flux and concentration in hyperfiltration
Chemical Engineering Science, 1986Developpement d'une methode explicite valable dans tout le domaine de rejet (0-100%), en utilisant un modele a trois ...
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