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Potassium Permanganate Oxidation of Phenanthrene and Pyrene in Contaminated Soils by Paula Tereza de Souza e Silva; Valdinete Lins da Silva; Benício de Barros Neto; Marie-Odile Simonnot is a Environmental Science article available to read on EtoBox.

What is Potassium Permanganate Oxidation of Phenanthrene and Pyrene in Contaminated Soils about?

Potassium permanganate, widely used in water treatment, has shown its applicability to reduce PAH contamination in groundwater and soils. The first stage to design a treatment at the site scale is the feasibility study at the bench scale, generally performed by means of batch experiments. The aim of the present contribution was to investigate the influence of two factors on PAH degradation in spiked soils, following the method of factorial designs. These factors were the weight ratio KMnO(4)/PAH and the reaction time. Three factorial designs were performed and batch experiments were run to study the degradation of phenanthrene and pyrene on soils spiked at different concentrations, between 700 and 2100 mg kg(-1). We showed that treatment with potassium permanganate significantly reduced PAH concentration, but pyrene was more recalcitrant than phenanthrene. Both variables had negative main effects and a positive two-factor interaction effect: increasing the weight ratio or the reaction time enhanced PAH degradation but the reduction produced by the two factors was lower than the sum of the individual contributions. The comparison of these results with results that we published previ

Who reads Potassium Permanganate Oxidation of Phenanthrene and Pyrene in Contaminated Soils?

Author

Paula Tereza de Souza e Silva; Valdinete Lins da Silva; Benício de Barros Neto; Marie-Odile Simonnot

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)

Published

2009

Language

EN

Field

Environmental Science (Physical Sciences)