Journal of Industrial and Engineering Chemistry, Vol.65, 31-34, September, 2018
Soil remediation using soil washing followed by ozone oxidation
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In the present work, the use of a coupled process, soil washing followed by ozone oxidation was investigated for the remediation of artificial phenanthrene-contaminated soils. Two surfactants with different concentrations were studied to obtain the suitable concentration. Phenanthrene removal efficiencies of 80.2% (TX-100) and 73.8% (Brij-35) were achieved at 3 g/L. Oxidation degradation efficiencies of 99% (phenanthrene), 99% (TX-100), and 45% (Brij-35) were obtained at 20 mg/L ozone for 2 h. The high removal efficiencies with surfactant-enhanced soil washing and oxidation degradation efficiencies with ozone suggest that the proposed procedure is a useful approach to complete the soil remediation process.
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