A column method for determination of leaching of polycyclic aromatic hydrocarbons from aged contaminated soil

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A column method for determination of leaching of polycyclic aromatic hydrocarbons from aged contaminated soil. / Enell, Anja; Reichenberg, Fredrik; Warfvinge, Per; Ewald, Göran.

In: Chemosphere, Vol. 54, No. 6, 2004, p. 707-715.

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Enell, Anja ; Reichenberg, Fredrik ; Warfvinge, Per ; Ewald, Göran. / A column method for determination of leaching of polycyclic aromatic hydrocarbons from aged contaminated soil. In: Chemosphere. 2004 ; Vol. 54, No. 6. pp. 707-715.

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TY - JOUR

T1 - A column method for determination of leaching of polycyclic aromatic hydrocarbons from aged contaminated soil

AU - Enell, Anja

AU - Reichenberg, Fredrik

AU - Warfvinge, Per

AU - Ewald, Göran

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Engineering (011001014), LUCSUS (Lund University Centre for Sustainability Studies) (016508030), Analytical Chemistry (S/LTH) (011001004)

PY - 2004

Y1 - 2004

N2 - In this study a column leaching method for investigation of hydrophobic organic contaminants (HOCs) leaching from soil was developed. The method set-up is based on a recycled flow of sterile water through a soil column with a sedimentation chamber mounted on top of the column, in connection with on-line filtration. The combination of a sedimentation chamber and an on-line filtration enables the measurement of leaching concentrations from contaminated materials consisting of very fine particle fractions. In addition, by using on-line solid phase extraction, minute amounts of leaching HOCs may be captured and quantified with high accuracy and reproducibility. The method was applied successfully on a contaminated aged soil sample and the leaching behavior of seven PAHs, with three to six aromatic rings, was monitored for more than 1600 h under saturated conditions. The tested PAHs were fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)pyrene and benzo(ghi)peryiene. The method proved to be reliable and capable of providing data on leachable amounts of the PAHs under field-like conditions and over a longer period of time. The results indicated low availability of the studied contaminants since only a minor fraction (0.3%) of the initial amount of PAHs in the soil was removed during the experiment (liquid/solid-ratio of 700 l/kg). Thus PAHs in aged contaminated soil are not to be expected to be released to any great extent only by leaching with water. (C) 2003 Elsevier Ltd. All rights reserved.

AB - In this study a column leaching method for investigation of hydrophobic organic contaminants (HOCs) leaching from soil was developed. The method set-up is based on a recycled flow of sterile water through a soil column with a sedimentation chamber mounted on top of the column, in connection with on-line filtration. The combination of a sedimentation chamber and an on-line filtration enables the measurement of leaching concentrations from contaminated materials consisting of very fine particle fractions. In addition, by using on-line solid phase extraction, minute amounts of leaching HOCs may be captured and quantified with high accuracy and reproducibility. The method was applied successfully on a contaminated aged soil sample and the leaching behavior of seven PAHs, with three to six aromatic rings, was monitored for more than 1600 h under saturated conditions. The tested PAHs were fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)pyrene and benzo(ghi)peryiene. The method proved to be reliable and capable of providing data on leachable amounts of the PAHs under field-like conditions and over a longer period of time. The results indicated low availability of the studied contaminants since only a minor fraction (0.3%) of the initial amount of PAHs in the soil was removed during the experiment (liquid/solid-ratio of 700 l/kg). Thus PAHs in aged contaminated soil are not to be expected to be released to any great extent only by leaching with water. (C) 2003 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.chemosphere.2003.08.026

DO - 10.1016/j.chemosphere.2003.08.026

M3 - Article

VL - 54

SP - 707

EP - 715

JO - Chemosphere - Global Change Science

T2 - Chemosphere - Global Change Science

JF - Chemosphere - Global Change Science

SN - 1879-1298

IS - 6

ER -