In situ bioremediation using biosurfactant produced by solid state fermentation |
| |
Authors: | Vilásia Guimarães Martins Susana Juliano Kalil Jorge Alberto Vieira Costa |
| |
Institution: | (1) Biochemical Engineering Laboratory, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, RS, Brazil;(2) Microbiology Laboratory, College of Chemical and Food Engineering, Federal University of Rio Grande, Rio Grande, RS, Brazil |
| |
Abstract: | The discovery that certain microorganisms, living within a marine environment, can actually degrade components of oil, has
made possible the utilization of biological methods for the treatment of oil spills. A biosurfactant accelerates the process
of degradation of pollutant composites. The objective of this work was to study the bioremediation in situ of a diesel oil
spill by utilizing a biosurfactant produced through fermentation and then compare it with chemical remediation. The quantification
and identification of hydrocarbons were carried out by the process of gas chromatography. The soil indigenous microorganisms
were monitored. The experiment with biosurfactant reached reductions of 99% of the aliphatic hydrocarbons, while that of the
chemical disperser experiment reached a maximum of 90% reduction in 180 days. In 15 days the biosurfactant removed 77% of
the aliphatic hydrocarbons, the diesel oil experiment 8.7% and the chemical disperser only 5%. The biosurfactant was 99% effective
for the removal of aromatic polycyclic hydrocarbons, up to 3 rings. |
| |
Keywords: | Bioremediation Biosurfactant Hydrocarbons Fungi |
本文献已被 SpringerLink 等数据库收录! |
|