Decontamination of soil containing POPs by the combined action of solid Fenton-like reagents and microwaves.
The effect on halogenated aromatics of solid, non-toxic oxidants such as sodium percarbonate and the urea/hydrogen peroxide complex (Fenton-like reagents) was investigated. A microwaves-assisted, solvent-free method for soil decontamination is presented. It marks a considerable advance in the search of more efficient, environment-friendly procedures for the degradative oxidation of persistent organic pollutants. Residual pollutants in treated soil samples were determined by GC/MS analysis after solvent extraction or direct thermal desorption. Results showed that 4-chloronaphthol, 2,4-dichlorophenoxyacetic acid and p-nonylphenol had been degraded completely, 2,4-dibromophenol to a large extent.
Cravotto
Giancarlo
G
Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via P. Giuria 9, 10125 Torino, Italy. giancarlo.cravotto@unito.it <giancarlo.cravotto@unito.it>
Di Carlo
Stefano
S
Ondruschka
Bernd
B
Tumiatti
Vander
V
Roggero
Carlo Maria
CM
D003666:Decontamination / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D006861:Hydrogen Peroxide / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D008872:Microwaves; D012989:Soil Pollutants / Q000737:chemistry*
C045076:Fenton's reagent; D012989:Soil Pollutants; D006861:Hydrogen Peroxide; D007501:Iron