The streaming potential method for the characterization of ultrafiltration organic membranes and the control of cleaning treatments

doi:10.1016/S0376-7388(96)00340-7

Journal of Membrane Science

Volume 129, Issue 1, 25 June 1997, Pages 125-133

https://doi.org/10.1016/S0376-7388(96)00340-7 Get rights and content

Abstract

Streaming potential measurement of ultrafiltration (UF) membranes have been realised a new design. This new design is more convenient to determine the streaming potential on a function of the pressure for all kinds of modules (planar, hollow fiber.h.). The effects of pH, ionic strength and size of pores have been studied. Isoelectric points of different materials (polyethersulfone, celloulse acetate, cellulose triacetate and polysulfone membranes) have been experimentally determined from ν variations with pH at a given ionic are, respectively, 3.1, 4.2, 3.4 and 0.5. The study of the charge organic membranes studied has been shown that adsorbing ions are those of water itself. Then the surface charge of the membrane is a dependent on the pH and at the isoelectric point, the charge density and the streaming potential vanished. The polyethersulfone membrane surface has been modified with TX100 adsorption and the modification observed with our design compared to contact angle and permeabilities measurements. The orientation angle of the surfactant at the membrane surface is obtained: θ=5°, and shows that a flat adsorption occurs. The impact of membranes cleaning procedures have been studied in term of permeability completed by streaming potential measurements. It appeared clearly that streaming potential is a useful tool for the control of cleaning procedures.

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The streaming potential method for the characterization of ultrafiltration organic membranes and the control of cleaning treatments

Abstract

J. Biol. Chem.

J. Membrane Sci.

J. Coll. Interface Sci.

J. Membrane Sci.

J. Coll. Interface Sci.

J. Coll. Interface Sci.

J. Membrane Sci.

J. Electrochemical Chem.

Thermal Anal.

Les applications des membranes synthétiques

Pour la science

Membrane ultrafiltration of a non-ionic surfactant

AIChE. J.

Measurement of membranes surface hydrophobicity and charge as affected by solution characteristics

J. AWWA

Etude théorique et expérimentale de l'adhésion de particulate de taille micronique sur une surface plane

Thése INPT Toulouse

Intéraction polymére hydrosolubles/particules: rôle dans le phénoméne de colmatage de membraens d'UF utilisées pour la production d'eau potable

Thése Paris

Etude des intéractions membrane-soluté-surfactif: application à l'ultrafiltration assistée par les surfactifs

Thése Paris

Streaming potential studies on corundum in aqueous solution of inorganic electrolytes

J. Phys. Chem.

Specific adsorption of cations on hydrous γAl2O3

J. Coll. Interface Sci.

Interfacial processes in mineral/water systems

Min. Eng.

Streaming potentials as a tool in the characterization of ultrafiltration

Membranes Coll. Surf.

Electro-osmosis and electrolyte conductance in charged microcapillaries

AiChE J.

Specific adsorption of cations on hydrous γAl₂O₃