Biodestructive processes in oil-contaminated clayey soil

The processes of degradation of the organic matter by indigenous microflora in oil-contaminated clayed soil are investigated under laboratory conditions. Soil was sampled after the accident at the main oil pipeline. Peat and a solution of a composition containing a surfactant and a nitrogenous subst...

Full description

Saved in:
Bibliographic Details
Main Authors: Strelnikova, Eugenia B., Svarovskaya, Lydia I., Russkikh, Irina V., Serebrennikova, Olga V.
Format: Conference Proceeding
Language:English
Subjects:
Alkanes
Biodegradation
Clay soils
Composition
Infrared spectroscopy
Mass spectrometry
Organic matter
Peat
Petroleum pipelines
Soil conditions
Soil contamination
Soil investigations
Substrates
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The processes of degradation of the organic matter by indigenous microflora in oil-contaminated clayed soil are investigated under laboratory conditions. Soil was sampled after the accident at the main oil pipeline. Peat and a solution of a composition containing a surfactant and a nitrogenous substrate are added to the contaminated soil to stimulate the native microflora. After biodegradation, the residual oil is extracted and examined by IR spectroscopy, GLC and chromatography-mass spectrometry. The maximum biodegradation coefficient (Ki) is determined in the oil-contaminated soil sample with the addition of the composition as a stimulating substrate. In the course of degradation by microflora stimulated by the introduction of peat and nutrient substrate, the concentration of n-alkanes decreased by 62–73%, that of aromatics—by 77–100%, cyclohexanes—by 62–86%, and oil steranes and hopans—by 47–74%.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5132221