Phenanthrene contaminated soil remediation using Fenton reagent

VILLALBA VILLALBA, NADIA; PELUFFO, MARINA; MARTIN, MARCELA V.; MORA, VERÓNICA

Reportes Científicos de la FACEN

Franco de Diana, D.

Lugar: San Lorenzo; Año: 2014 vol. 5 p. 29 - 37

2222-145X

Soil contamination is increasing due to the global population growth. This promotes the production and release of the Polycyclic Aromatic Hydrocarbon compounds (PAH) in the environment. In this work were tested chemical oxidants to find sustainable methods that efficiently degrade the phenanthrene present in a contaminated soil without affect the autochthonous microbial populations of the soil. Two treatments: hydrogen peroxide (H2O2) and hydrogen peroxide catalyzed by ferrous ions and ethylenediaminetetraacetic as chelating agent (H2O2/Fe:EDTA) were carried out compared against a biological control. The assays were performed during 28 days with the samples incubated at 24 ± 2 °C. The physicochemical properties and microbiological properties were carried out. The H2O2 and H2O2/Fe:EDTA showed good degradation with an 80% of the phenanthrene eliminated, and these treatments do not produce negative effects on the soil microbial community.