Surfactant Effects on Desorption Rate of Nonionic Organic Compounds from Soils to Water
The widespread occurrence of organic contamination in groundwater systems has become an important environmental concern. Of particular interest are nonionic organic compounds, which sorb strongly to natural soil as a result of their characteristic low aqueous solubilities and hydrophobic nature. Consequently, the remediation of nonionic organic contamination in groundwater systems is often highly dependent on contaminant desorption from the sorbed to aqueous phase. The kinetics of desorption will significantly influence the extraction efficiency of pump-and-treat remedial methods that are capable of removing only dissolved phase contaminants.
KeywordsNonionic Surfactant Solubility Enhancement Apparent Solubility Surfactant Effect Ethylene Dibromide
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- Adamson AW (1990) Physical chemistry of surfaces. John Wiley and Sons, New York.Google Scholar
- Chiou CT, Freed VH (1977) Correspondence. Environ Sci Technol 11: 1220.Google Scholar
- Cussler EL (1984) Diffusion: Mass transfer in fluid systems. Cambridge University Press, Cambridge.Google Scholar
- deGennes PG (1979) Scaling concepts in polymer physics. Cornell University Press, Ithaca, NY.Google Scholar
- Lyon WG, Rhodes DE (1991) The swelling properties of soil organic matter and their relation to sorption of nonionic organic compounds. USEPA Project Summary, EPA/600/52–91/033, Robert S. Kerr Environ Res Lab, Ada, OK, Aug 1991.Google Scholar
- Scribner SL, Benzing TR, Sun S, Boyd SA (1992) Desorption and bioavailability of aged simazine residues in soil from a continuous corn field. J Environ Qual 21: 114–120.Google Scholar
- Smith JA, Witkowski PJ, Fusillo TV (1988b) Manmade organic compounds in the surface waters of the United States — a review of current understanding. U.S. Geological Survey Circular 1007 U.S. Govt Printing Off, Washington, DC.Google Scholar
- Smith JA, Tuck DM, Jaffe PR, Mueller RT (1991) Effects of surfactants on the mobility of nonpolar organic contaminants in porous media. In Baker R (ed) Organic substances and sediments in water, Vol I. Lewis Publishers, Chelsea, MI pp 201–203.Google Scholar
- Stevenson FJ (1982) Humus chemistry. John Wiley and Sons, New York.Google Scholar
- Tuck DM, Jaffe PR, Crerar DA (1988) Enhancing recovery of immobile residual non-wetting hydrocarbons from the unsaturated zone using surfactant solutions. NWWA Petroleum Hydrocarbons Conf, Houston, TX, Nov 9–11.Google Scholar
- Vigon BW, Rubin AJ (1989) Practical considerations in the surfactant-aided mobilization of contaminants in aquifers. J Water Pollut Control Fed 61: 1233–1240.Google Scholar