Characterisation of the biodegradability of petroleum hydrocarbons in soil and the bioremediation processes during treatment by biopiles and landfarming. [Doctoral dissertation] | Karakterizacija biodegradabilnosti naftnih ugljovodonika u zemljištu i bioremedijacionih procesa u toku tretmana biogomilama i površinskom obradom. Doktorska disertacija
2010
Maletić, S.
The aims of this study were to examine: (1) the process that occur during bioremediation of soil contaminated by oil and oil derivatives, which was exposed to spontaneous abiotic and biotic degradation processes over 8 years, using pilot scale biopiles and landfarming techniques to optimize technological parameters with the aim of increasing the efficiency and effectiveness of hydrocarbons biodegradation. (2) the effect of contaminants weathering, concentration, bioavailability and structure on the biodegradation and biotransformation process under controlled laboratory conditions. Over the two years of bioremediation treatment by biopiles and landfarming, the mineral oil content decreased by 52% and 53%, and the total hydrocarbon content decreased by 43% and 27% respectively. The efficiency of mineral oil removal from soil in these two applied bioremediation treatments was practically the same. However, in terms of the absolute amount of total hydrocarbons, twice as many total hydrocarbons were removed in the biopile. The laboratory biodegradation investigation showed that hydrocarbon biodegradability and its fate in the environment strongly depend upon the structure, concentration and weathering of the hydrocarbons.
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