Advanced

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

Enell, Anja LU ; Reichenberg, Fredrik LU ; Warfvinge, Per LU and Ewald, Göran LU (2004) In Chemosphere 54(6). p.707-715
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemosphere
volume
54
issue
6
pages
707 - 715
publisher
Elsevier
external identifiers
  • wos:000187745000003
  • pmid:14602103
  • scopus:0242369738
ISSN
1879-1298
DOI
10.1016/j.chemosphere.2003.08.026
language
English
LU publication?
yes
id
6d9738e9-e3cc-4155-a585-1dc58dd8287c (old id 138903)
date added to LUP
2007-06-25 10:41:28
date last changed
2017-09-10 03:36:21
@article{6d9738e9-e3cc-4155-a585-1dc58dd8287c,
  abstract     = {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.},
  author       = {Enell, Anja and Reichenberg, Fredrik and Warfvinge, Per and Ewald, Göran},
  issn         = {1879-1298},
  language     = {eng},
  number       = {6},
  pages        = {707--715},
  publisher    = {Elsevier},
  series       = {Chemosphere},
  title        = {A column method for determination of leaching of polycyclic aromatic hydrocarbons from aged contaminated soil},
  url          = {http://dx.doi.org/10.1016/j.chemosphere.2003.08.026},
  volume       = {54},
  year         = {2004},
}