The possible application of two environmental remediation technologies – soil washing and photocatalysis – to remove and decompose various aromatic pollutants present in excavated soils of a contaminated industrial site has been investigated. Aqueous solutions containing the non-ionic surfactant Brij 35 were used to extract the contaminants from the soil samples. The photocatalytic treatment of the obtained washing wastes, performed in the presence of TiO2 suspensions irradiated with simulated sunlight, showed a slow abatement of the toxic compounds due to the relevant concentrations of organics in the waste. A neat improvement of the process performances, obtained by operating in the presence of added potassium peroxydisulfate, suggests a feasible treatment route.

Removal and degradation of aromatic compounds from a highly polluted site by coupling soil washing with photocatalysis

FABBRI, DEBORA;BIANCO PREVOT, Alessandra;ZELANO, Vincenzo;GINEPRO, Marco;PRAMAURO, Edmondo
2008-01-01

Abstract

The possible application of two environmental remediation technologies – soil washing and photocatalysis – to remove and decompose various aromatic pollutants present in excavated soils of a contaminated industrial site has been investigated. Aqueous solutions containing the non-ionic surfactant Brij 35 were used to extract the contaminants from the soil samples. The photocatalytic treatment of the obtained washing wastes, performed in the presence of TiO2 suspensions irradiated with simulated sunlight, showed a slow abatement of the toxic compounds due to the relevant concentrations of organics in the waste. A neat improvement of the process performances, obtained by operating in the presence of added potassium peroxydisulfate, suggests a feasible treatment route.
2008
71
59
65
FABBRI D; BIANCO PREVOT A; ZELANO V; GINEPRO M; PRAMAURO E.
File in questo prodotto:
File Dimensione Formato  
Removal and degradation.pdf

Accesso riservato

Tipo di file: PDF EDITORIALE
Dimensione 204.25 kB
Formato Adobe PDF
204.25 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Paper Merlo_cor_rev_4aperto.pdf

Accesso aperto

Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 302.33 kB
Formato Adobe PDF
302.33 kB Adobe PDF Visualizza/Apri
1-s2.0-S0045653507012933-main.pdf

Accesso riservato

Tipo di file: PDF EDITORIALE
Dimensione 204.25 kB
Formato Adobe PDF
204.25 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/104388
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 56
  • ???jsp.display-item.citation.isi??? 52
social impact