Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions

K. Titov, Y. Ilyin, P. Konosavsky, O. Orlova, O. Rybaltchenko, A. Muslimov, A. Maineult

Research outputpeer-review

Abstract

We present laboratory investigations of oil-contaminated sands inoculated with Pseudomonas indica, known as oil degrader, under aerobic conditions. Our results are based on the measurements of electrical parameters (resistivity, induced polarization and self-potential signals) and hydraulic conductivity. We also analyzed the moisture chemical composition and oil content in the sand, and acquired sand electron microscope images. The data revealed a decrease of oil content with time, which we relate to biodegradation. We argue that the biodegradation process leads to a decrease of the soil porosity, and to an increase of the pore water salinity. The evolution of bulk resistivity was found to be in accordance with these textural and chemical changes. We found the hydraulic conductivity to be dependent on the microbial activity: the more is sand affected by bacteria, the less is hydraulic conductivity. We show the electrokinetic coupling coefficient to be dependent on microbial activity. We show that the coefficient decreases with increase of the microbial activity.

Original languageEnglish
Publication statusPublished - 1 Jan 2012
EventSt. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources - Saint Petersburg
Duration: 2 Apr 20125 Apr 2012

Conference

ConferenceSt. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources
CountryRussian Federation
CitySaint Petersburg
Period2/04/125/04/12

Scopus subject areas

  • Geophysics

Cite this

Titov, K., Ilyin, Y., Konosavsky, P., Orlova, O., Rybaltchenko, O., Muslimov, A., & Maineult, A. (2012). Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions. Paper presented at St. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources, Saint Petersburg, .
Titov, K. ; Ilyin, Y. ; Konosavsky, P. ; Orlova, O. ; Rybaltchenko, O. ; Muslimov, A. ; Maineult, A. / Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions. Paper presented at St. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources, Saint Petersburg, .
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Titov, K, Ilyin, Y, Konosavsky, P, Orlova, O, Rybaltchenko, O, Muslimov, A & Maineult, A 2012, 'Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions' Paper presented at, Saint Petersburg, 2/04/12 - 5/04/12, .

Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions. / Titov, K.; Ilyin, Y.; Konosavsky, P.; Orlova, O.; Rybaltchenko, O.; Muslimov, A.; Maineult, A.

2012. Paper presented at St. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources, Saint Petersburg, .

Research outputpeer-review

TY - CONF

T1 - Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions

AU - Titov, K.

AU - Ilyin, Y.

AU - Konosavsky, P.

AU - Orlova, O.

AU - Rybaltchenko, O.

AU - Muslimov, A.

AU - Maineult, A.

PY - 2012/1/1

Y1 - 2012/1/1

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M3 - Paper

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Titov K, Ilyin Y, Konosavsky P, Orlova O, Rybaltchenko O, Muslimov A et al. Physical properties of oil-contaminated sand affected by microbial activity under aerobic conditions. 2012. Paper presented at St. Petersburg 2012 International Conference on Geosciences: Making the Most of the Earth's Resources, Saint Petersburg, .