Separation Science and Technology · 1989 · 61 citations · 2 references
AgricultureEnvironmental EngineeringSoil SciencesEnvironmental RemediationSoil ChemistrySoil RemediationSoil DispersionSoil FlushingSoil PollutionSoil WashingSurface Water RemediationSurfactantsColumnsSolubilizationSolubilization By SurfactantsSurfactant Effects On SolubilitySurfactant FlushingSurfactant SolubilizationSurfactant SolutionsSurfactant-based Remediation
Abstract Data on the solubilization of p-dichlorobenzene (DCB), naphthalene, and biphenyl in aqueous solutions of sodium dodecylsulfate (SDS) (0-100 mM concentration) indicate increases in effective solubilities of these hydrophobic compounds by factors of roughly 20 to 100. DCB is effectively removed from spiked clay-sand mixtures by leaching with SDS solutions in laboratory columns. Surfactant solutions loaded with DCB are satisfactorily treated by gentle extraction with hexane, and the recovered surfactant solution satisfactorily solubilizes biphenyl. A simple model for predicting the solubilization behavior of surfactants is developed and tested experimentally.
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