Selection of Surfactants for Micellar-Enhanced Ultrafiltration
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 25 (1-2), 83-108
- https://doi.org/10.1080/01496399008050322
Abstract
The selection of a surfactant is an important issue in designing separations processes based on micellar-enhanced ultrafiltration. The binding of hydrophillic solutes to both ionic and nonionic micelles is considered and shown to be a function of the molecular structure of the surfactants, the concentration of the surfactant, and the electrolyte composition of the water. It is also shown that the passage of micelles is only partly restricted by polycarbonate membranes with 100 Å ports but is effectively restricted by some cellulose acetate membranes. Swelling the micelles by cosolubilizing certain nonpolar compounds was found to only marginally improve the separation efficiency. There appears to be an optimum surfactant molecular structure, but it will not be possible even under the best conditions to completely remove a hydrophilic solute such as phenol in a single stage. Thus, the process will necessarily be multistage.This publication has 12 references indexed in Scilit:
- Influence of n-butanol on the size of sodium dodecyl sulfate micellesJournal of Colloid and Interface Science, 1989
- Hydrodynamic theory for the hindered transport of flexible macromolecules in porous membranesJournal of Membrane Science, 1988
- Removal of Trace Levels off Phenols from Aqueous Solution by Foam FlotationSeparation Science and Technology, 1987
- A new theory and new results for mixed nonionic—anionic micellesJournal of Colloid and Interface Science, 1985
- Use of Micellar-Enhanced Ultrafiltration to Remove Dissolved Organics from Aqueous StreamsSeparation Science and Technology, 1985
- The separation of phenol from dilute, alkaline aqueous solution by solvent extraction, solvent sublation, and foam fractionationAnalytica Chimica Acta, 1974
- Effect of aqueous alcoholic solvents on counterion-binding to CTAB micellesJournal of Colloid and Interface Science, 1974
- Spectrophotometric determination of cationic surfactants with Orange IIAnalytical Chemistry, 1968
- A colorimetric method for the determination of parts/million of nonionic surfactantsJournal of Oil & Fat Industries, 1965
- Effect of Electrolytes Upon the Solubilization of Hydrocarbons and Polar CompoundsJournal of the American Chemical Society, 1950