Sorption of polycyclic aromatic hydrocarbons on organo-zeolites was investigated to determine sorbent-sorbate interaction. The hydrophobic character of the surface of the organo-zeolites was studied using in water vapor adsorption experiments. Water adsorption decreased with increasing stearyldimethylbenzylammoniumchloride (SDBAC) loading up to 75 mmol/kg, which is related to increasing sorbate hydrophobicity. With loadings above 75 mmol/kg (ECEC value), water vapor adsorption increased. Effects of adsorbent size, SDBAC loading and initial concentration of PAHs on the adsorption efficiency were also determined. The highest adsorption for the PAHs studied was achieved with OZ II 75 (OZ - organo-zeolite; II - particle size of 0.4-0.8 mm; 75 - mmol of surfactant/kg of zeolite). At a concentration of 20 mu g/dm(3) the adsorption index for benz[a]anthracene was 100%. The smaller adsorption indexes for PAHs with lower partition coefficients, K-ow, indicated that the adsorption is primarily h...ydrophobic. The number of bed volumes passed through the adsorbent before the first PAH appeared in the effluent was 770. Column experiments showed competitive adsorption among the PAHs with different hydrophobicities.
TY - JOUR
AU - Lemić, Jovan
AU - Tomašević-Čanović, Magdalena
AU - Adamović, Milan
AU - Kovačević, Dragana
AU - Milićević, Sonja
PY - 2007
UR - https://ritnms.itnms.ac.rs/handle/123456789/118
AB - Sorption of polycyclic aromatic hydrocarbons on organo-zeolites was investigated to determine sorbent-sorbate interaction. The hydrophobic character of the surface of the organo-zeolites was studied using in water vapor adsorption experiments. Water adsorption decreased with increasing stearyldimethylbenzylammoniumchloride (SDBAC) loading up to 75 mmol/kg, which is related to increasing sorbate hydrophobicity. With loadings above 75 mmol/kg (ECEC value), water vapor adsorption increased. Effects of adsorbent size, SDBAC loading and initial concentration of PAHs on the adsorption efficiency were also determined. The highest adsorption for the PAHs studied was achieved with OZ II 75 (OZ - organo-zeolite; II - particle size of 0.4-0.8 mm; 75 - mmol of surfactant/kg of zeolite). At a concentration of 20 mu g/dm(3) the adsorption index for benz[a]anthracene was 100%. The smaller adsorption indexes for PAHs with lower partition coefficients, K-ow, indicated that the adsorption is primarily hydrophobic. The number of bed volumes passed through the adsorbent before the first PAH appeared in the effluent was 770. Column experiments showed competitive adsorption among the PAHs with different hydrophobicities.
PB - Elsevier, Amsterdam
T2 - Microporous and Mesoporous Materials
T1 - Competitive adsorption of polycyclic aromatic hydrocarbons on organo-zeolites
EP - 323
IS - 3
SP - 317
VL - 105
DO - 10.1016/j.micromeso.2007.04.014
UR - conv_535
ER -
@article{
author = "Lemić, Jovan and Tomašević-Čanović, Magdalena and Adamović, Milan and Kovačević, Dragana and Milićević, Sonja",
year = "2007",
abstract = "Sorption of polycyclic aromatic hydrocarbons on organo-zeolites was investigated to determine sorbent-sorbate interaction. The hydrophobic character of the surface of the organo-zeolites was studied using in water vapor adsorption experiments. Water adsorption decreased with increasing stearyldimethylbenzylammoniumchloride (SDBAC) loading up to 75 mmol/kg, which is related to increasing sorbate hydrophobicity. With loadings above 75 mmol/kg (ECEC value), water vapor adsorption increased. Effects of adsorbent size, SDBAC loading and initial concentration of PAHs on the adsorption efficiency were also determined. The highest adsorption for the PAHs studied was achieved with OZ II 75 (OZ - organo-zeolite; II - particle size of 0.4-0.8 mm; 75 - mmol of surfactant/kg of zeolite). At a concentration of 20 mu g/dm(3) the adsorption index for benz[a]anthracene was 100%. The smaller adsorption indexes for PAHs with lower partition coefficients, K-ow, indicated that the adsorption is primarily hydrophobic. The number of bed volumes passed through the adsorbent before the first PAH appeared in the effluent was 770. Column experiments showed competitive adsorption among the PAHs with different hydrophobicities.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "Competitive adsorption of polycyclic aromatic hydrocarbons on organo-zeolites",
pages = "323-317",
number = "3",
volume = "105",
doi = "10.1016/j.micromeso.2007.04.014",
url = "conv_535"
}
Lemić, J., Tomašević-Čanović, M., Adamović, M., Kovačević, D.,& Milićević, S.. (2007). Competitive adsorption of polycyclic aromatic hydrocarbons on organo-zeolites. in Microporous and Mesoporous Materials
Elsevier, Amsterdam., 105(3), 317-323.
https://doi.org/10.1016/j.micromeso.2007.04.014
conv_535
Lemić J, Tomašević-Čanović M, Adamović M, Kovačević D, Milićević S. Competitive adsorption of polycyclic aromatic hydrocarbons on organo-zeolites. in Microporous and Mesoporous Materials. 2007;105(3):317-323.
doi:10.1016/j.micromeso.2007.04.014
conv_535 .
Lemić, Jovan, Tomašević-Čanović, Magdalena, Adamović, Milan, Kovačević, Dragana, Milićević, Sonja, "Competitive adsorption of polycyclic aromatic hydrocarbons on organo-zeolites" in Microporous and Mesoporous Materials, 105, no. 3 (2007):317-323,
https://doi.org/10.1016/j.micromeso.2007.04.014 .,
conv_535 .
