Surfactant solubilization and subsequent bioavailability of phenanthrene Thesis

thesis or dissertation chair

fiu authors

  • Bramwell, Debbie-Ann

abstract

  • Contamination of soil, sediment and groundwater by hydrophobic organic compounds (HOCs) is a matter of growing concern because groundwater is a valuable and limited resource, and because such contamination is difficult to address. This investigation involved an experimental evaluation of the addition of several surfactant solutions to aqueous and soil-water systems contaminated with phenanthrene, a selected HOC. The results are presented in terms of:

    * phenanthrene solubilization achieved through surfactant addition

    * observed effects of surfactant addition on the mineralization of phenanthrene

    * estimation of relative toxicities of various surfactants using toxicity assays

    * literature-reported biodegradability/persistence of selected surfactants

    * surfactant sorption/precipitation onto soil and its impacts on proposed use of surfactant-amended remediation

    Surfactants were observed to facilitate the transfer of phenanthrene from the soil-sorbed phase to the aqueous pseudophase, however, surfactant solubilization did not translate into enhanced phenanthrene biodegradation.

publication date

  • November 14, 1997

Digital Object Identifier (DOI)