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SEPARATION OF VOLATILE ORGANIC COMPOUNDS FROM SURFACTANT SOLUTIONS BY PERVAPORATION
Citation:
Vane*, L M., F R. Alvarez*, L Hitchens*, AND E. L. Giroux. SEPARATION OF VOLATILE ORGANIC COMPOUNDS FROM SURFACTANT SOLUTIONS BY PERVAPORATION. ISBN13: 978084123618, Chapter 5, J,F. Scamehorn and J. H. Harwell (ed.), Surfactant-Based Separations: Science and Technology, ACS Symposim Series No. 740. American Chemical Society, Washington, DC, , ., (2000).
Impact/Purpose:
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Description:
Pervaporation is gradually becoming an accepted and practical method for the recovery of volatile organic compounds (VOCs) from aqueous process and waste streams. As the technolog has matured, new applications for pervaporation have emerged. One such application is the separation of VOCs from surfactant solutions, such as those used to remediate sosils contaminated with chlorinated solvents, thereby enabling the reuse of the surfactant solution. In pervaporation, a nonporous hydrophobic membrane separates the surfactant solution from a vapor phase (vacuum) which extracts the VOC. As a resault, pervaporation does not suffer from foaming problems commonly encountered with conventional separation processes. In this paper, the effect of surfactants on process fundamentals and recent experimental results with surfactant solutions will be discussed.
