Abstract
Laboratory experiments were conducted in order to investigate the possibility of promoting microbial degradation of diesel in a sandy soil by areating alone, or whether it would be necessary to add nutrients. It was also investigated whether it is sufficient to add nitrogen before oxidation, or necessary to add phosphate and micro nutrients as well. It was found that the latter was necessary. The addition of nitrate and phosphate reduces diesel oil concentration by ca. 50% during a period of 50 - 192 days. The ratio between carbon in the oil and the nitrate in the soil reaches 21:1, and the ratio between carbon and the leachable phosphate reaches 150:1. In the experimental series where the content of oil in the soil is rapidly reduced, - after a short lag period of ca. 8 days the content of ATP increased from between 30-160 ng/g to 270-940 ng/g. A change in the composition of the soil only occurs when nitrate and phosphate is added. Addition of micro-nutrients to the fertilized water has little positive effect on degradation. The addition of nitrate and phosphate will cause degradation rates of between 0.014 and 0.061 g/(kg.day). The content of all identified substances is reduced
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Lindhardt, B;
[1]
Jacobsen, J;
[2]
Meldgaard Andersen, E
[3]
- Laboratoriet for teknisk Hygiejne, DTH (Denmark)
- COWIconsult (Denmark)
- Dansk Teknologisk Institut (Denmark)
Citation Formats
Lindhardt, B, Jacobsen, J, and Meldgaard Andersen, E.
Degradation of diesel oil in unsaturated soil. Laboratory investigations. Report A2. Sanitary landfill project; Nedbrydning af dieselolie i umaettet jord. Laboratorieundersoegelser. Rapport A2. Lossepladsprojektet.
Denmark: N. p.,
1991.
Web.
Lindhardt, B, Jacobsen, J, & Meldgaard Andersen, E.
Degradation of diesel oil in unsaturated soil. Laboratory investigations. Report A2. Sanitary landfill project; Nedbrydning af dieselolie i umaettet jord. Laboratorieundersoegelser. Rapport A2. Lossepladsprojektet.
Denmark.
Lindhardt, B, Jacobsen, J, and Meldgaard Andersen, E.
1991.
"Degradation of diesel oil in unsaturated soil. Laboratory investigations. Report A2. Sanitary landfill project; Nedbrydning af dieselolie i umaettet jord. Laboratorieundersoegelser. Rapport A2. Lossepladsprojektet."
Denmark.
@misc{etde_10112766,
title = {Degradation of diesel oil in unsaturated soil. Laboratory investigations. Report A2. Sanitary landfill project; Nedbrydning af dieselolie i umaettet jord. Laboratorieundersoegelser. Rapport A2. Lossepladsprojektet}
author = {Lindhardt, B, Jacobsen, J, and Meldgaard Andersen, E}
abstractNote = {Laboratory experiments were conducted in order to investigate the possibility of promoting microbial degradation of diesel in a sandy soil by areating alone, or whether it would be necessary to add nutrients. It was also investigated whether it is sufficient to add nitrogen before oxidation, or necessary to add phosphate and micro nutrients as well. It was found that the latter was necessary. The addition of nitrate and phosphate reduces diesel oil concentration by ca. 50% during a period of 50 - 192 days. The ratio between carbon in the oil and the nitrate in the soil reaches 21:1, and the ratio between carbon and the leachable phosphate reaches 150:1. In the experimental series where the content of oil in the soil is rapidly reduced, - after a short lag period of ca. 8 days the content of ATP increased from between 30-160 ng/g to 270-940 ng/g. A change in the composition of the soil only occurs when nitrate and phosphate is added. Addition of micro-nutrients to the fertilized water has little positive effect on degradation. The addition of nitrate and phosphate will cause degradation rates of between 0.014 and 0.061 g/(kg.day). The content of all identified substances is reduced by biodegradation. Changes in the composition of the oil, the ratio of n-alkanes and the ratio between pristane and n-C{sub 17}, together with the ratio between phytane and n-C{sub 18} respectively, are estimated to be appropriate parameters for following the introductory microbial degradation of diesel oil because these parameters are independent of the total concentration of oil. (AB).}
place = {Denmark}
year = {1991}
month = {Nov}
}
title = {Degradation of diesel oil in unsaturated soil. Laboratory investigations. Report A2. Sanitary landfill project; Nedbrydning af dieselolie i umaettet jord. Laboratorieundersoegelser. Rapport A2. Lossepladsprojektet}
author = {Lindhardt, B, Jacobsen, J, and Meldgaard Andersen, E}
abstractNote = {Laboratory experiments were conducted in order to investigate the possibility of promoting microbial degradation of diesel in a sandy soil by areating alone, or whether it would be necessary to add nutrients. It was also investigated whether it is sufficient to add nitrogen before oxidation, or necessary to add phosphate and micro nutrients as well. It was found that the latter was necessary. The addition of nitrate and phosphate reduces diesel oil concentration by ca. 50% during a period of 50 - 192 days. The ratio between carbon in the oil and the nitrate in the soil reaches 21:1, and the ratio between carbon and the leachable phosphate reaches 150:1. In the experimental series where the content of oil in the soil is rapidly reduced, - after a short lag period of ca. 8 days the content of ATP increased from between 30-160 ng/g to 270-940 ng/g. A change in the composition of the soil only occurs when nitrate and phosphate is added. Addition of micro-nutrients to the fertilized water has little positive effect on degradation. The addition of nitrate and phosphate will cause degradation rates of between 0.014 and 0.061 g/(kg.day). The content of all identified substances is reduced by biodegradation. Changes in the composition of the oil, the ratio of n-alkanes and the ratio between pristane and n-C{sub 17}, together with the ratio between phytane and n-C{sub 18} respectively, are estimated to be appropriate parameters for following the introductory microbial degradation of diesel oil because these parameters are independent of the total concentration of oil. (AB).}
place = {Denmark}
year = {1991}
month = {Nov}
}