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Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident
The use of in situ techniques in soil remediation is still rare in Finland and most other European countries due to the uncertainty of the effectiveness of the techniques especially in cold regions and also due to their potential side effects on the environment. In this study, we compared the biosti...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5124059/ https://www.ncbi.nlm.nih.gov/pubmed/27677992 http://dx.doi.org/10.1007/s11356-016-7606-0 |
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author | Simpanen, Suvi Dahl, Mari Gerlach, Magdalena Mikkonen, Anu Malk, Vuokko Mikola, Juha Romantschuk, Martin |
author_facet | Simpanen, Suvi Dahl, Mari Gerlach, Magdalena Mikkonen, Anu Malk, Vuokko Mikola, Juha Romantschuk, Martin |
author_sort | Simpanen, Suvi |
collection | PubMed |
description | The use of in situ techniques in soil remediation is still rare in Finland and most other European countries due to the uncertainty of the effectiveness of the techniques especially in cold regions and also due to their potential side effects on the environment. In this study, we compared the biostimulation, chemical oxidation, and natural attenuation treatments in natural conditions and pilot scale during a 16-month experiment. A real fuel spill accident was used as a model for experiment setup and soil contamination. We found that biostimulation significantly decreased the contaminant leachate into the water, including also the non-aqueous phase liquid (NAPL). The total NAPL leachate was 19 % lower in the biostimulation treatment that in the untreated soil and 34 % lower in the biostimulation than oxidation treatment. Soil bacterial growth and community changes were first observed due to the increased carbon content via oil amendment and later due to the enhanced nutrient content via biostimulation. Overall, the most effective treatment for fresh contaminated soil was biostimulation, which enhanced the biodegradation of easily available oil in the mobile phase and consequently reduced contaminant leakage through the soil. The chemical oxidation did not enhance soil cleanup and resulted in the mobilization of contaminants. Our results suggest that biostimulation can decrease or even prevent oil migration in recently contaminated areas and can thus be considered as a potentially safe in situ treatment also in groundwater areas. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11356-016-7606-0) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-5124059 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-51240592016-12-09 Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident Simpanen, Suvi Dahl, Mari Gerlach, Magdalena Mikkonen, Anu Malk, Vuokko Mikola, Juha Romantschuk, Martin Environ Sci Pollut Res Int Research Article The use of in situ techniques in soil remediation is still rare in Finland and most other European countries due to the uncertainty of the effectiveness of the techniques especially in cold regions and also due to their potential side effects on the environment. In this study, we compared the biostimulation, chemical oxidation, and natural attenuation treatments in natural conditions and pilot scale during a 16-month experiment. A real fuel spill accident was used as a model for experiment setup and soil contamination. We found that biostimulation significantly decreased the contaminant leachate into the water, including also the non-aqueous phase liquid (NAPL). The total NAPL leachate was 19 % lower in the biostimulation treatment that in the untreated soil and 34 % lower in the biostimulation than oxidation treatment. Soil bacterial growth and community changes were first observed due to the increased carbon content via oil amendment and later due to the enhanced nutrient content via biostimulation. Overall, the most effective treatment for fresh contaminated soil was biostimulation, which enhanced the biodegradation of easily available oil in the mobile phase and consequently reduced contaminant leakage through the soil. The chemical oxidation did not enhance soil cleanup and resulted in the mobilization of contaminants. Our results suggest that biostimulation can decrease or even prevent oil migration in recently contaminated areas and can thus be considered as a potentially safe in situ treatment also in groundwater areas. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11356-016-7606-0) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2016-09-27 2016 /pmc/articles/PMC5124059/ /pubmed/27677992 http://dx.doi.org/10.1007/s11356-016-7606-0 Text en © The Author(s) 2016 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Research Article Simpanen, Suvi Dahl, Mari Gerlach, Magdalena Mikkonen, Anu Malk, Vuokko Mikola, Juha Romantschuk, Martin Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
title | Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
title_full | Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
title_fullStr | Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
title_full_unstemmed | Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
title_short | Biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
title_sort | biostimulation proved to be the most efficient method in the comparison of in situ soil remediation treatments after a simulated oil spill accident |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5124059/ https://www.ncbi.nlm.nih.gov/pubmed/27677992 http://dx.doi.org/10.1007/s11356-016-7606-0 |
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