Permanganate oxidation of sorbed polycyclic aromatic hydrocarbons

Determination of potassium permanganate demand variation with depth for oxidation–remediation of soils from a PAHs-contaminated coking plant

“…Ferrarese et al [17] found that potassium permanganate could remove 96% of total PAHs from certain sediments and low molecular weigh PAHs in the sediments were also more readily reactive with permanganate than high molecular weigh PAHs. The various removal percent for different PAHs were suggested to be attributed to their differences in electronic structures [18]. The concentration of PAHs with medium to high molecular weight in some soil samples increased after treatment.…”

Oxidant selection to treat an aged PAH contaminated soil by in situ chemical oxidation

“…However, permanganate is not the best oxidant for PAHs, even if positive results were already reported [13][14][15][16][17][18]. Additionally to its reactivity, its performances were assigned to its high persistence [9][10][11].…”

“…Permanganate, used as sodium or potassium permanganate has been extensively investigated and applied [9,10,13]. With a standard oxidation potential of 1.7 V, it is considered as a strong oxidant able to break carbon-carbon double bonds, aldehyde and hydroxyl groups, but not benzene rings.…”

A combined chemical and biological approach to transforming and mineralizing PAHs in runoff water

“…This stark difference is likely due to very low solubility and high adsorption properties of the parent benzo(a)pyrene (0.0038 mg L −1 ; Mackay and Hoigne, 1977;Cerniglia, 1992;Trapido et al, 1995;Miller and Hawthorne, 1998;log Koc = 6.7 L kg −1 ;McCarthy and Jimenez, 1985;Torben et al, 1997) versus the more polar functional groups found on the degradation products. While individual degradation products were not identified in this study, past research has shown that ozonation of benzo(a)pyrene could include quinones, aromatic diols, and short chain alkanes (Moriconi et al, 1961;Huang et al, 2002;Brown et al, 2003;Koeber et al, 2006). In a detailed study by Zeng et al (2000), they found that eight different compounds can form by three different pathways and that these eight compounds are then further degraded into other compounds in a sequence with at least five stages and with some sequences involving more than ten steps.…”