Effectiveness of Intrinsic Biodegradation Enhancement in Oil Hydrocarbons Contaminated Soil
Journal Title: Archives of Environmental Protection - Year 2014, Vol 40, Issue 1
Abstract
Studies were conducted using a 10-chamber Micro-Oxymax (Columbus, OH, USA) respirometer to determine the effect of bioaugmentation, biostimulation and combination of them on enhancing intrinsic biodegradation of oil hydrocarbons in soil. Contaminated soil was collected from a former military airport in Kluczewo, Poland. Bioaugmentation was realized by addition of indigenous or exogenous bacteria to soil. Biostimulation was done by aerated water supply and surfactant addition. Bioaugmentation + addition of a surfactant was applied as the combined treatment. The intrinsic and enhanced hydrocarbons biodegradation rates were estimated from the slopes of linear regressions of cumulative curves of O2 uptake. Pertinent biodegradation rates were recalculated on the basis of the stoichiometric reaction (mass balance equation) and conversion equation. The results showed that combined treatment (indigenous bacteria bioaugmentation + addition of a surfactant) was the most effective method of biodegradation enhancement as the 20-fold increase of biodegradation rate was observed.
Authors and Affiliations
Iwona Zawierucha, Grzegorz Malina, Wojciech Ciesielski, Piotr Rychter
Keywords
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- EP ID EP325332
- DOI 10.2478/aep-2014-0010
- Views 70
- Downloads 0
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