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Parameterization and evaluation of sulfate adsorption in a dynamic soil chemistry model.

Fransson, Liisa LU ; Alveteg, Mattias LU and Warfvinge, Per LU (2003) In Environmental Pollution 124(1). p.119-125
Abstract
Sulfate adsorption was implemented in the dynamic, multi-layer soil chemistry model SAFE. The process is modeled by an isotherm in which sulfate adsorption is considered to be fully reversible and dependent on sulfate concentration as well as pH in soil solution. The isotherm was parameterized by a site-specific series of simple batch experiments at different pH (3.8–5.0) and sulfate concentration (10–260 mol l−1) levels. Application of the model to the Lake Gårdsjön roof covered site shows that including sulfate adsorption improves the dynamic behavior of the model and sulfate adsorption and desorption delay acidification and recovery of the soil. The modeled adsorbed pool of sulfate at the site reached a maximum level of 700 mmol/m2 in... (More)
Sulfate adsorption was implemented in the dynamic, multi-layer soil chemistry model SAFE. The process is modeled by an isotherm in which sulfate adsorption is considered to be fully reversible and dependent on sulfate concentration as well as pH in soil solution. The isotherm was parameterized by a site-specific series of simple batch experiments at different pH (3.8–5.0) and sulfate concentration (10–260 mol l−1) levels. Application of the model to the Lake Gårdsjön roof covered site shows that including sulfate adsorption improves the dynamic behavior of the model and sulfate adsorption and desorption delay acidification and recovery of the soil. The modeled adsorbed pool of sulfate at the site reached a maximum level of 700 mmol/m2 in the late 1980s, well in line with experimental data. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Pollution
volume
124
issue
1
pages
119 - 125
publisher
Elsevier
external identifiers
  • pmid:12683988
  • wos:000182868900012
  • scopus:0037411246
ISSN
0269-7491
DOI
10.1016/S0269-7491(02)00413-X
language
English
LU publication?
yes
id
97841360-fd4c-40f7-aef4-546c2ae29f4a (old id 129337)
date added to LUP
2007-06-25 12:52:32
date last changed
2017-03-19 04:01:36
@article{97841360-fd4c-40f7-aef4-546c2ae29f4a,
  abstract     = {Sulfate adsorption was implemented in the dynamic, multi-layer soil chemistry model SAFE. The process is modeled by an isotherm in which sulfate adsorption is considered to be fully reversible and dependent on sulfate concentration as well as pH in soil solution. The isotherm was parameterized by a site-specific series of simple batch experiments at different pH (3.8–5.0) and sulfate concentration (10–260 mol l−1) levels. Application of the model to the Lake Gårdsjön roof covered site shows that including sulfate adsorption improves the dynamic behavior of the model and sulfate adsorption and desorption delay acidification and recovery of the soil. The modeled adsorbed pool of sulfate at the site reached a maximum level of 700 mmol/m2 in the late 1980s, well in line with experimental data.},
  author       = {Fransson, Liisa and Alveteg, Mattias and Warfvinge, Per},
  issn         = {0269-7491},
  language     = {eng},
  number       = {1},
  pages        = {119--125},
  publisher    = {Elsevier},
  series       = {Environmental Pollution},
  title        = {Parameterization and evaluation of sulfate adsorption in a dynamic soil chemistry model.},
  url          = {http://dx.doi.org/10.1016/S0269-7491(02)00413-X},
  volume       = {124},
  year         = {2003},
}