A BIODEGRADATION ACTIVITY OF MICROBIAL ASSOCIATIONS

A microbiological and chromatographic analysis of water samples from 10 oxidizing lakes was performed. These lakes were artificially created in order to prevent the ecological pollution of the area of refinery Plama Ltd, Pleven. The chromatographic analysis detected 20.4 mg/L average concentration of the decomposed oil in the lakes. Inversely proportional correlation between the amount of the bacterial cells and the concentration and the structure of the oil hydrocarbons was observed.