Optimization of the application of the Fenton chemistry for the remediation of a contaminated soil with polycyclic aromatic hydrocarbons
作者： Fernando Pardo , Marina Peluffo , Aurora Santos , Arturo Romero
DOI: 10.1002/JCTB.4767
关键词:
摘要: BACKGROUND A contaminated soil with 100 mg kg−1 each of the following pollutants: anthracene (ANT), phenanthrene (PHE), pyrene (PYR) and benzo(a)pyrene (BaP) was treated by three different kinds Fenton's reaction without pH adjustment, Fenton-like (hydrogen peroxide (H2O2) a ferric iron salt (Fe(III)), Fenton catalyzed nanoparticles zerovalent (nZVI), coupled simultaneously washing, using sodium dodecyl sulfate (SDS) as surfactant. The influence initial concentration (1–5 mmol L−1), oxidant dosage (88–1765 mmol L−1), type initially added (Fe(III) or nZVI) effect surfactant addition were tested. RESULTS Almost total conversion ANT BaP achieved for majority experiments, having obtained best results like Fe(III) 5 mmol L−1, where abatement all contaminants in less than 10 days. Besides, coupling reagent washing enhanced removal PAHs studied. 9–10 anthraquinone (ATQ) detected main aromatic intermediate. CONCLUSIONS The put forward this work reveal suitability new effective alternatives to conventional Reagent PAH soils. © 2015 Society Chemical Industry
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