Behavior of organic contaminants in permafrost-affected soils
Soils and soil functions are a main resource for our existence on earth. But soils are under threat by degradation. Another resource that seems irreplaceable for human being on this planet is oil. Oil, as well as soil, is a non-renewable resource in relation to human life time. With decreasing reser...
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Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
2015
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ftsubhamburg:oai:ediss.sub.uni-hamburg.de:ediss/6540 2023-05-15T13:03:26+02:00 Behavior of organic contaminants in permafrost-affected soils Das Verhalten von organischen Schadstoffe in Permafrost-beeinflussten Böden Zschocke, Anne Eschenbach, Annette (Prof. Dr.) 2015-01-01 http://nbn-resolving.de/urn:nbn:de:gbv:18-76379 https://ediss.sub.uni-hamburg.de/handle/ediss/6540 ger ger Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky http://nbn-resolving.de/urn:nbn:de:gbv:18-76379 https://ediss.sub.uni-hamburg.de/handle/ediss/6540 http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess No license organische Schadstoffe Permafrost PAK Gefrier-Tau-Zyklen Sibirien petroleum hydrocarbons PAH perennial frozen ground Siberia freezing process 550 Geowissenschaften 38.95 Umweltgeologie Geoökologie ddc:550 doctoralThesis doc-type:doctoralThesis 2015 ftsubhamburg 2022-11-09T07:11:18Z Soils and soil functions are a main resource for our existence on earth. But soils are under threat by degradation. Another resource that seems irreplaceable for human being on this planet is oil. Oil, as well as soil, is a non-renewable resource in relation to human life time. With decreasing reservoirs in the established oil production areas, remote oil resources, like in the Arctic, come into the focus of exploration activities (Bird et al. 2008). Exploration, transport and processing of oil inevitably cause accidental spills and continuous release of product and compounds into the soil on different levels. In general the reasons are technical inadequacy, human error or natural hazards (Siciliano et al. 2008). Some studies found that the entry of organic contaminants in permafrost-affected soils led to an increase in active layer thickness and subsequent soil subsidence (Collins et al. 1993). In Antarctic soils the accumulation of PAHs from atmospheric deposition were found in the transient layer (Curtosi et al. 2007). To identify the processes responsible for organic contaminant migration in permafrost-affected soils a laboratory method to simulate the natural freezing process was invented and the distribution of different PAHs in oil contaminated soils at water unsaturated conditions were investigated. Experiments were run with a closed column system in three parallels and a reference. The columns were cooled from the bottom or from the top. The freezing process was monitored in each column by two temperature probes and a TDR probe. A two-phase freezing scenario proved to be the best way to simulate the natural freezing process in different soils with the along going water migration processes. Until now two main processes of organic contaminant migration dependent on the freezing process in soils have been identified. For organic contaminants that are present as a single phase, a pushing out of the soil pores forward the freezing front due to the freezing induced water migration and ice formation has been ... Doctoral or Postdoctoral Thesis Active layer thickness Antarc* Antarctic Arctic Ice permafrost Siberia ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky) Arctic Antarctic |
institution |
Open Polar |
collection |
ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky) |
op_collection_id |
ftsubhamburg |
language |
German |
topic |
organische Schadstoffe Permafrost PAK Gefrier-Tau-Zyklen Sibirien petroleum hydrocarbons PAH perennial frozen ground Siberia freezing process 550 Geowissenschaften 38.95 Umweltgeologie Geoökologie ddc:550 |
spellingShingle |
organische Schadstoffe Permafrost PAK Gefrier-Tau-Zyklen Sibirien petroleum hydrocarbons PAH perennial frozen ground Siberia freezing process 550 Geowissenschaften 38.95 Umweltgeologie Geoökologie ddc:550 Zschocke, Anne Behavior of organic contaminants in permafrost-affected soils |
topic_facet |
organische Schadstoffe Permafrost PAK Gefrier-Tau-Zyklen Sibirien petroleum hydrocarbons PAH perennial frozen ground Siberia freezing process 550 Geowissenschaften 38.95 Umweltgeologie Geoökologie ddc:550 |
description |
Soils and soil functions are a main resource for our existence on earth. But soils are under threat by degradation. Another resource that seems irreplaceable for human being on this planet is oil. Oil, as well as soil, is a non-renewable resource in relation to human life time. With decreasing reservoirs in the established oil production areas, remote oil resources, like in the Arctic, come into the focus of exploration activities (Bird et al. 2008). Exploration, transport and processing of oil inevitably cause accidental spills and continuous release of product and compounds into the soil on different levels. In general the reasons are technical inadequacy, human error or natural hazards (Siciliano et al. 2008). Some studies found that the entry of organic contaminants in permafrost-affected soils led to an increase in active layer thickness and subsequent soil subsidence (Collins et al. 1993). In Antarctic soils the accumulation of PAHs from atmospheric deposition were found in the transient layer (Curtosi et al. 2007). To identify the processes responsible for organic contaminant migration in permafrost-affected soils a laboratory method to simulate the natural freezing process was invented and the distribution of different PAHs in oil contaminated soils at water unsaturated conditions were investigated. Experiments were run with a closed column system in three parallels and a reference. The columns were cooled from the bottom or from the top. The freezing process was monitored in each column by two temperature probes and a TDR probe. A two-phase freezing scenario proved to be the best way to simulate the natural freezing process in different soils with the along going water migration processes. Until now two main processes of organic contaminant migration dependent on the freezing process in soils have been identified. For organic contaminants that are present as a single phase, a pushing out of the soil pores forward the freezing front due to the freezing induced water migration and ice formation has been ... |
author2 |
Eschenbach, Annette (Prof. Dr.) |
format |
Doctoral or Postdoctoral Thesis |
author |
Zschocke, Anne |
author_facet |
Zschocke, Anne |
author_sort |
Zschocke, Anne |
title |
Behavior of organic contaminants in permafrost-affected soils |
title_short |
Behavior of organic contaminants in permafrost-affected soils |
title_full |
Behavior of organic contaminants in permafrost-affected soils |
title_fullStr |
Behavior of organic contaminants in permafrost-affected soils |
title_full_unstemmed |
Behavior of organic contaminants in permafrost-affected soils |
title_sort |
behavior of organic contaminants in permafrost-affected soils |
publisher |
Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky |
publishDate |
2015 |
url |
http://nbn-resolving.de/urn:nbn:de:gbv:18-76379 https://ediss.sub.uni-hamburg.de/handle/ediss/6540 |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Active layer thickness Antarc* Antarctic Arctic Ice permafrost Siberia |
genre_facet |
Active layer thickness Antarc* Antarctic Arctic Ice permafrost Siberia |
op_relation |
http://nbn-resolving.de/urn:nbn:de:gbv:18-76379 https://ediss.sub.uni-hamburg.de/handle/ediss/6540 |
op_rights |
http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess No license |
_version_ |
1766336625965531136 |