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Polycyclic aromatic hydrocarbons in ash: Determination of total and leachable concentrations

Enell, Anja LU ; Fuhrman, Filippa; Lundin, Lisa; Warfvinge, Per LU and Thelin, Gunnar LU (2008) In Environmental Pollution 152(2). p.285-292
Abstract
Before wood ash can be used as a soil fertilizer, concentrations of environmentally hazardous compounds must be investigated. In this study, total and leachable concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were determined in four ash samples and one green liquor sludge. The ash sample with the highest carbon content also contained high levels of PAHs; three of the ash samples had total concentrations exceeding the limit permitted by the Swedish Forest Agency for recycling to forest soils. The leachable concentrations were higher for the nonstabilized samples; this was probably due to colloid-facilitated transport of the contaminants in these samples. However, the leachable concentrations were overall relatively low in all... (More)
Before wood ash can be used as a soil fertilizer, concentrations of environmentally hazardous compounds must be investigated. In this study, total and leachable concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were determined in four ash samples and one green liquor sludge. The ash sample with the highest carbon content also contained high levels of PAHs; three of the ash samples had total concentrations exceeding the limit permitted by the Swedish Forest Agency for recycling to forest soils. The leachable concentrations were higher for the nonstabilized samples; this was probably due to colloid-facilitated transport of the contaminants in these samples. However, the leachable concentrations were overall relatively low in all the samples studied. The amounts of PAHs introduced to forest soils by additions of stabilized, recyclable ash products will be determined primarily by the rate of weathering of the ash particles and the total concentration of contaminants. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
wood ash, transport, hydrocarbons, polycyclic aromatic, column leaching, municipal solid waste ash
in
Environmental Pollution
volume
152
issue
2
pages
285 - 292
publisher
Elsevier
external identifiers
  • wos:000254968200004
  • scopus:39749182873
ISSN
0269-7491
DOI
10.1016/j.envpol.2007.06.055
language
English
LU publication?
yes
id
e77de82c-a086-451b-839d-8fc3dc3c9efb (old id 1206435)
date added to LUP
2008-09-19 14:04:12
date last changed
2017-01-01 05:49:09
@article{e77de82c-a086-451b-839d-8fc3dc3c9efb,
  abstract     = {Before wood ash can be used as a soil fertilizer, concentrations of environmentally hazardous compounds must be investigated. In this study, total and leachable concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were determined in four ash samples and one green liquor sludge. The ash sample with the highest carbon content also contained high levels of PAHs; three of the ash samples had total concentrations exceeding the limit permitted by the Swedish Forest Agency for recycling to forest soils. The leachable concentrations were higher for the nonstabilized samples; this was probably due to colloid-facilitated transport of the contaminants in these samples. However, the leachable concentrations were overall relatively low in all the samples studied. The amounts of PAHs introduced to forest soils by additions of stabilized, recyclable ash products will be determined primarily by the rate of weathering of the ash particles and the total concentration of contaminants.},
  author       = {Enell, Anja and Fuhrman, Filippa and Lundin, Lisa and Warfvinge, Per and Thelin, Gunnar},
  issn         = {0269-7491},
  keyword      = {wood ash,transport,hydrocarbons,polycyclic aromatic,column leaching,municipal solid waste ash},
  language     = {eng},
  number       = {2},
  pages        = {285--292},
  publisher    = {Elsevier},
  series       = {Environmental Pollution},
  title        = {Polycyclic aromatic hydrocarbons in ash: Determination of total and leachable concentrations},
  url          = {http://dx.doi.org/10.1016/j.envpol.2007.06.055},
  volume       = {152},
  year         = {2008},
}