caa a22 4500 477106315 CHVBK 20180405111554.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF01570070 doi (NATIONALLICENCE)springer-10.1007/BF01570070 Bioventing of diesel oil-contaminated soil: Comparison of degradation rates in soil based on actual oil concentration and on respirometric data [Elektronische Daten] [J Møller, P Winther, B Lund, K Kirkebjerg, P Westermann] The effects of bioventing, nutrient addition and inoculation with an oil-degrading bacterium on biodegradation of diesel oil in unsaturated soil were investigated. A mesocosm system was constructed consisting of six soil compartments each containing 6 m3 of naturally contaminated soil mixed 1∶1 with silica sand, resulting in a diesel oil content of approximately 2000 mg kg−1. Biodegradation was monitored over 112 days by determining the actual diesel oil content of the soil and by respirometric tests. The best agreement between calculations of degradation rates based upon the two methods was in July, when venting in combination with nutrient addition resulted in degradation rates of 23 mg kg−1 day−1 based on actual oil concentration in the soil and 33 mg kg−1 day−1 calculated from respirometric data. In September, these rates decreased to 9 and 1.4 mg kg−1 day−1, and in October the degradation rates were 5 and 0.7 mg kg−1 day−1 based upon the two methods. The average ambient temperature during the respirometric tests was 14,10 and 2°C in July, September and October, respectively. The combination of venting and nutrient addition resulted in an average residual oil content of the soil of 380 mg kg−1. Neither venting alone nor inoculation enhanced oil degradation. The respiratory quotient averaged 0.40. The oil composition changed following degradation resulting in the unresolved complex mixture constituting up to 96% of the total oil content at the end of the experimental period. Society for Industrial Microbiology, 1996 bioventing nationallicence biodegradation nationallicence respirometry nationallicence inoculation nationallicence nutrients nationallicence diesel oil nationallicence Møller J. Department of General Microbiology, University of Copenhagen, DK-1307, Copenhagen K, Denmark aut Winther P. Carl Bro Environment a/s, Granskoven 8, DK 2600, Glostrup, Denmark aut Lund B. Danish Technological Institute, Gregersensvej, PO Box 141, DK-2630, Taastrup, Denmark aut Kirkebjerg K. Carl Bro Environment a/s, Granskoven 8, DK 2600, Glostrup, Denmark aut Westermann P. Department of General Microbiology, University of Copenhagen, DK-1307, Copenhagen K, Denmark aut Journal of Industrial Microbiology Springer-Verlag 16/2(1996-02-01), 110-116 0169-4146 16:2<110 1996 16 10295 https://doi.org/10.1007/BF01570070 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01570070 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Møller J. Department of General Microbiology, University of Copenhagen, DK-1307, Copenhagen K, Denmark aut NATIONALLICENCE 700 1- Winther P. Carl Bro Environment a/s, Granskoven 8, DK 2600, Glostrup, Denmark aut NATIONALLICENCE 700 1- Lund B. Danish Technological Institute, Gregersensvej, PO Box 141, DK-2630, Taastrup, Denmark aut NATIONALLICENCE 700 1- Kirkebjerg K. Carl Bro Environment a/s, Granskoven 8, DK 2600, Glostrup, Denmark aut NATIONALLICENCE 700 1- Westermann P. Department of General Microbiology, University of Copenhagen, DK-1307, Copenhagen K, Denmark aut NATIONALLICENCE 773 0- Journal of Industrial Microbiology Springer-Verlag 16/2(1996-02-01), 110-116 0169-4146 16:2<110 1996 16 10295 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer