Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil
Steam treatment of contaminated soil and aquifer sediment is a promising method of cleaning soil. The treatment is based on steam injection into a water saturated porous aquifer (Gudbjerg et al. 2004), by which the heat transfers the contaminants into the vapour phase, allowing entrapment in an acti...
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ftjgeusbullet:oai:geusjournals.org:article/4829 2023-05-15T16:30:00+02:00 Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil Jacobsen, Carsten Suhr Elmholt, Susanne Bagge Jensen, Carsten Bach Jakobsen, Pia Bender, Mikkel 2005-07-29 application/pdf https://geusbulletin.org/index.php/geusb/article/view/4829 https://doi.org/10.34194/geusb.v7.4829 eng eng Geological Survey of Denmark and Greenland (GEUS) https://geusbulletin.org/index.php/geusb/article/view/4829/10465 https://geusbulletin.org/index.php/geusb/article/view/4829 doi:10.34194/geusb.v7.4829 GEUS Bulletin; Vol. 7 (2005): The Review of Survey activities 2004; 37-40 2597-2154 2597-2162 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rapid Communication. Peer-reviewed Article. 2005 ftjgeusbullet https://doi.org/10.34194/geusb.v7.4829 2022-03-15T17:22:15Z Steam treatment of contaminated soil and aquifer sediment is a promising method of cleaning soil. The treatment is based on steam injection into a water saturated porous aquifer (Gudbjerg et al. 2004), by which the heat transfers the contaminants into the vapour phase, allowing entrapment in an active carbon filter connected to a large vacuum suction device. The treatment is effective against several important groundwater contaminants, including pentachlorophenole and perchloroethylene, typically found in association with industrial processes or dry cleaning facilities. Furthermore, as an example of removal of non-aqueous phase liquids (NAPLs) large amounts of creosote have been recovered after steam injection in a deep aquifer (Kuhlmann 2002; Tse & Lo 2002). Steam treatment is dependent on the complete heating of the soil volume under treatment. The steam has a strongly adverse impact on trees and other plants with deep root systems within the soil, but no other visible effects have been reported. The aim of the activities undertaken during collaborative projects carried out by the Geological Survey of Denmark and Greenland (GEUS) and the Danish Institute of Agricultural Sciences (DJF) for the Danish Environmental Protection Agency and the local authorities in Copenhagen (Københavns Amt) was to establish to what extent the microbial community was affected by the steam treatment of the soil. A few results from the literature indicate that the microbial activity increases in steam treated soil (Richardson et al. 2002), probably due to microbial degradation of the soil contaminants in combination with microbial utilisation of heatkilled organisms. It is, however, not known whether this increased microbial activity is associated with the development of pathogenic micro-organisms; these are typically able to grow at higher temperatures than the general microbial community in soil. Article in Journal/Newspaper Greenland GEUS Bulletin (Geological Survey of Denmark and Greenland) Greenland Geological Survey of Denmark and Greenland (GEUS) Bulletin 7 37 40 |
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Steam treatment of contaminated soil and aquifer sediment is a promising method of cleaning soil. The treatment is based on steam injection into a water saturated porous aquifer (Gudbjerg et al. 2004), by which the heat transfers the contaminants into the vapour phase, allowing entrapment in an active carbon filter connected to a large vacuum suction device. The treatment is effective against several important groundwater contaminants, including pentachlorophenole and perchloroethylene, typically found in association with industrial processes or dry cleaning facilities. Furthermore, as an example of removal of non-aqueous phase liquids (NAPLs) large amounts of creosote have been recovered after steam injection in a deep aquifer (Kuhlmann 2002; Tse & Lo 2002). Steam treatment is dependent on the complete heating of the soil volume under treatment. The steam has a strongly adverse impact on trees and other plants with deep root systems within the soil, but no other visible effects have been reported. The aim of the activities undertaken during collaborative projects carried out by the Geological Survey of Denmark and Greenland (GEUS) and the Danish Institute of Agricultural Sciences (DJF) for the Danish Environmental Protection Agency and the local authorities in Copenhagen (Københavns Amt) was to establish to what extent the microbial community was affected by the steam treatment of the soil. A few results from the literature indicate that the microbial activity increases in steam treated soil (Richardson et al. 2002), probably due to microbial degradation of the soil contaminants in combination with microbial utilisation of heatkilled organisms. It is, however, not known whether this increased microbial activity is associated with the development of pathogenic micro-organisms; these are typically able to grow at higher temperatures than the general microbial community in soil. |
format |
Article in Journal/Newspaper |
author |
Jacobsen, Carsten Suhr Elmholt, Susanne Bagge Jensen, Carsten Bach Jakobsen, Pia Bender, Mikkel |
spellingShingle |
Jacobsen, Carsten Suhr Elmholt, Susanne Bagge Jensen, Carsten Bach Jakobsen, Pia Bender, Mikkel Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
author_facet |
Jacobsen, Carsten Suhr Elmholt, Susanne Bagge Jensen, Carsten Bach Jakobsen, Pia Bender, Mikkel |
author_sort |
Jacobsen, Carsten Suhr |
title |
Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
title_short |
Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
title_full |
Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
title_fullStr |
Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
title_full_unstemmed |
Steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
title_sort |
steam treatment of contaminated groundwater aquifers – development of pathogenic micro-organisms in soil |
publisher |
Geological Survey of Denmark and Greenland (GEUS) |
publishDate |
2005 |
url |
https://geusbulletin.org/index.php/geusb/article/view/4829 https://doi.org/10.34194/geusb.v7.4829 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
GEUS Bulletin; Vol. 7 (2005): The Review of Survey activities 2004; 37-40 2597-2154 2597-2162 |
op_relation |
https://geusbulletin.org/index.php/geusb/article/view/4829/10465 https://geusbulletin.org/index.php/geusb/article/view/4829 doi:10.34194/geusb.v7.4829 |
op_doi |
https://doi.org/10.34194/geusb.v7.4829 |
container_title |
Geological Survey of Denmark and Greenland (GEUS) Bulletin |
container_volume |
7 |
container_start_page |
37 |
op_container_end_page |
40 |
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1766019720476098560 |