Characteristics in oxidative degradation by ozone for saturated hydrocarbons in soil contaminated with diesel fuel

Effects of ozonation on soil organic matter of contaminated soil containing residual oil

“…Although ozone was an efficient oxidant of residual oil, it is unlikely that it could remove all of the residual oil since intermediates produced by ozonation and some compositions of the residual oil are recalcitrant to ozone. The ozonation efficiency (15 h) in this study was 5.67 mg O 3 consumed/mg removed TSEM, which was comparable to the efficiency observed in other studies using ozonation to treat contaminated (crude oil, (Dunn and Lunn 2002;Kulik et al 2006;Lee and Kim 2002;Yu et al 2007). Figure 4 also shows the change in the distribution of TSEM in SOM fractions during ozonation.…”

“…thermal desorption (ITRC 2005;Javorska et al 2009;Osgerby 2006). Studies have shown that ozone effectively removed polycyclic aromatic hydrocarbons (PAHs) (Rivas 2006), polychlorinated biphenyls (Javorska et al 2009), diesel fuel (Yu et al 2007), and residual oil following long-term biodegradation (Liang et al 2009). Ozonation is also an effective pre-treatment that enhances the subsequent biodegradation step by reducing the toxicity of the contaminants, producing more biodegradable intermediates, and/or improving the bioavailability of the parent compounds (Goi and Trapido 2004;Liang et al 2009;Nam and Kukor 2000;Sutton et al 2011).…”

Evaluation of soil pH and moisture content on in-situ ozonation of pyrene in soils

“…The decomposition of ozone is catalyzed by the natural organic matter, metals, and contaminants on the soil surface. These radicals are formed in both aqueous and soil systems [5,20,21].…”

Effect of metal oxides on the reactivity of persulfate/Fe(II) in the remediation of diesel-contaminated soil and sand

“…Remediation technologies for diesel-contaminated soil have been developed using chemical [3], biological [4], and combined approaches [2], and the Fenton-like oxidation catalyzed by naturally occurring iron minerals or basic oxygen furnace slag has been studied in efforts to find out how to remove the diesel more efficiently [5,6].…”