Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils
Hydrocarbon fuel spills are common in the Arctic. But, little is known about hydrocarbon-degrading microflora in Arctic tundra soils or the potential for bioremediation of these soils. We examined mineralization of radiolabeled hydrocarbons in microcosms containing soils collected from sites across...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.476.5879 2023-05-15T14:43:55+02:00 Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils William W. Mohn Gordon R. Stewart The Pennsylvania State University CiteSeerX Archives 2000 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.5879 http://elmu.umm.ac.id/file.php/1/jurnal/S/Soil Biology And Chemistry/Vol32.Issue8-9.Aug2000/1642.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.5879 http://elmu.umm.ac.id/file.php/1/jurnal/S/Soil Biology And Chemistry/Vol32.Issue8-9.Aug2000/1642.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://elmu.umm.ac.id/file.php/1/jurnal/S/Soil Biology And Chemistry/Vol32.Issue8-9.Aug2000/1642.pdf Arctic Biodegradation Bioremediation Cold Fuel Hydrocarbon Soil microcosm text 2000 ftciteseerx 2016-01-08T07:37:36Z Hydrocarbon fuel spills are common in the Arctic. But, little is known about hydrocarbon-degrading microflora in Arctic tundra soils or the potential for bioremediation of these soils. We examined mineralization of radiolabeled hydrocarbons in microcosms containing soils collected from sites across the Canadian Arctic. The soils all contained psychrotolerant microorganisms which mineralized dodecane and substantially removed total petroleum hydrocarbons (TPH) at 78C. Dodecane mineralization was severely limited by both N and P. Dodecane mineralization kinetics varied greatly among dierent soils. Multiple regression analysis showed that soil N and TPH concentrations together accounted for 73 % of the variability of the lag time preceding dodecane mineralization. Soil characteristics were less eective as predictors of mineralization kinetic parameters other than lag time. High total C concentrations were associated with high mineralization rate constants, and high sand contents were associated with long times for half-maximal dodecane mineralization. Very high concentrations of TPH (100 mg gÿ1 of dry soil) and heavy metals (e.g., 1.4 mg Pb gÿ1 of dry soil) did not prevent dodecane mineralization. Inoculation of soils with indigenous or non-indigenous hydrocarbon-degrading microorganisms stimulated dodecane mineralization. Bioremediation of hydrocarbon-contaminated Arctic tundra soils appears to be feasible, and various engineering strategies, such as heating or inoculating the soil, can accelerate hydrocarbon biodegradation. 7 2000 Elsevier Science Ltd. All rights reserved. Text Arctic Tundra Unknown Arctic |
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English |
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Arctic Biodegradation Bioremediation Cold Fuel Hydrocarbon Soil microcosm |
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Arctic Biodegradation Bioremediation Cold Fuel Hydrocarbon Soil microcosm William W. Mohn Gordon R. Stewart Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils |
topic_facet |
Arctic Biodegradation Bioremediation Cold Fuel Hydrocarbon Soil microcosm |
description |
Hydrocarbon fuel spills are common in the Arctic. But, little is known about hydrocarbon-degrading microflora in Arctic tundra soils or the potential for bioremediation of these soils. We examined mineralization of radiolabeled hydrocarbons in microcosms containing soils collected from sites across the Canadian Arctic. The soils all contained psychrotolerant microorganisms which mineralized dodecane and substantially removed total petroleum hydrocarbons (TPH) at 78C. Dodecane mineralization was severely limited by both N and P. Dodecane mineralization kinetics varied greatly among dierent soils. Multiple regression analysis showed that soil N and TPH concentrations together accounted for 73 % of the variability of the lag time preceding dodecane mineralization. Soil characteristics were less eective as predictors of mineralization kinetic parameters other than lag time. High total C concentrations were associated with high mineralization rate constants, and high sand contents were associated with long times for half-maximal dodecane mineralization. Very high concentrations of TPH (100 mg gÿ1 of dry soil) and heavy metals (e.g., 1.4 mg Pb gÿ1 of dry soil) did not prevent dodecane mineralization. Inoculation of soils with indigenous or non-indigenous hydrocarbon-degrading microorganisms stimulated dodecane mineralization. Bioremediation of hydrocarbon-contaminated Arctic tundra soils appears to be feasible, and various engineering strategies, such as heating or inoculating the soil, can accelerate hydrocarbon biodegradation. 7 2000 Elsevier Science Ltd. All rights reserved. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
William W. Mohn Gordon R. Stewart |
author_facet |
William W. Mohn Gordon R. Stewart |
author_sort |
William W. Mohn |
title |
Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils |
title_short |
Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils |
title_full |
Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils |
title_fullStr |
Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils |
title_full_unstemmed |
Limiting factors for hydrocarbon biodegradation at low temperatures in Artic soils |
title_sort |
limiting factors for hydrocarbon biodegradation at low temperatures in artic soils |
publishDate |
2000 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.5879 http://elmu.umm.ac.id/file.php/1/jurnal/S/Soil Biology And Chemistry/Vol32.Issue8-9.Aug2000/1642.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Tundra |
genre_facet |
Arctic Tundra |
op_source |
http://elmu.umm.ac.id/file.php/1/jurnal/S/Soil Biology And Chemistry/Vol32.Issue8-9.Aug2000/1642.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.476.5879 http://elmu.umm.ac.id/file.php/1/jurnal/S/Soil Biology And Chemistry/Vol32.Issue8-9.Aug2000/1642.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766315489477263360 |