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Role of Chemical Components of cork on Sorption of Aqueous Polycyclic Aromatic Hydrocarbons

In order to know the environmental behaviour of toxic pollutants it is fundamental to understand the role of chemical components of a material on sorption of such pollutants. In this study, the sorption of a mix of polycyclic aromatic hydrocarbons (PAHs) by cork fractions (i.e. raw cork (CF), free extractive cork (FEF)and nonsaponifiable (DESF)) has been investigated to better understand the role of biopolymers and extractable fraction of cork on their sorption behaviour. All samples were analyzed through elemental analysis and were examined using Fourier transform infrared spectroscopy. Alter removing the extractable fraction and the suberin from the cork, the sorption capacities (K-oc) of FEF and DESF exhibited mean reductions of 70% and 30% respectively. In addition, the sorption results of three pairs of cork samples with different chemical content confirm that the extractable fraction serves as the major sorption medium for PAHs. Considering only low molecular weight PAHs positive correlations between K-oc with K-ow (R-2=0.70) and F number (R-2=0.65) were found, showing that these parameters are involved in this adsorption process

This research was funded by the Spanish Ministerio de Ciencia e Innovacion as part of the project CTM2010-15185

© International Journal of Environmental Research, vol. 7, núm. 1, p. 225-234

University of Tehran. Graduate Faculty of Environment

Manager: Ministerio de Ciencia e Innovación (Espanya)
Author: Olivella Costa, Àngels
Fernández, I.
Cano, Laura
Jové, Patricia
Oliveras Rovira, Àngel
Date: 2013
Abstract: In order to know the environmental behaviour of toxic pollutants it is fundamental to understand the role of chemical components of a material on sorption of such pollutants. In this study, the sorption of a mix of polycyclic aromatic hydrocarbons (PAHs) by cork fractions (i.e. raw cork (CF), free extractive cork (FEF)and nonsaponifiable (DESF)) has been investigated to better understand the role of biopolymers and extractable fraction of cork on their sorption behaviour. All samples were analyzed through elemental analysis and were examined using Fourier transform infrared spectroscopy. Alter removing the extractable fraction and the suberin from the cork, the sorption capacities (K-oc) of FEF and DESF exhibited mean reductions of 70% and 30% respectively. In addition, the sorption results of three pairs of cork samples with different chemical content confirm that the extractable fraction serves as the major sorption medium for PAHs. Considering only low molecular weight PAHs positive correlations between K-oc with K-ow (R-2=0.70) and F number (R-2=0.65) were found, showing that these parameters are involved in this adsorption process
This research was funded by the Spanish Ministerio de Ciencia e Innovacion as part of the project CTM2010-15185
Format: application/pdf
Citation: 016116
ISSN: 1735-6865
Document access: http://hdl.handle.net/10256/11945
Language: eng
Publisher: University of Tehran. Graduate Faculty of Environment
Collection: MICINN/PN 2011-2013/CTM2010-15185
Reproducció digital del document publicat a: http://www.ijer.ir/article_601_31.html
Articles publicats (D-Q)
Is part of: © International Journal of Environmental Research, vol. 7, núm. 1, p. 225-234
Rights: Tots els drets reservats
Subject: Suro
Cork
Biopolímers
Biopolymers
Contaminants orgànics
olluants organiques
Title: Role of Chemical Components of cork on Sorption of Aqueous Polycyclic Aromatic Hydrocarbons
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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