Jw. Park et Pr. Jaffe, PHENANTHRENE REMOVAL FROM SOIL SLURRIES WITH SURFACTANT-TREATED OXIDES, Journal of environmental engineering, 121(6), 1995, pp. 430-437
A soil-slurry washing technique to decontaminate soils containing low-
solubility nonionic organic pollutants was investigated, using phenant
hrene as a model pollutant. The technique is based on first transferri
ng the sorbed phenanthrene from the soil to anionic surfactant-coated
oxide particles, and then separating these anionic surfactant-coated o
xide particles with the sorbed phenanthrene from the soil slurry via a
. magnetic separation technique. The decontamination of two soils with
different particle sizes and soil organic matter content was investig
ated. The proposed soil-slurry washing technique was effective in remo
ving a strongly sorbing nonionic organic contaminant from soil slurrie
s. Various operational scenarios of multistage soil-slurry reactors we
re evaluated with a mathematical model.