Original paper

L.: Microbial oxidation of crude oil hydrocarbons in Danube water

Tržilová, B.; Miklošovičová,


Bacterial degradation of soluble hydrocarbons in water of the river Danube was studied experimentally. Total organotrophic bacteria as well as bacteria of the genera Pseudomonas, Flavobacterium and Chromobacterium survived and grew in contaminated Danube water under static conditions and with aeration. This applied to hydrocarbon concentrations of up to 500 mg/l. Growth rate of bacteria and degradation rate of soluble hydrocarbons were high during the first three days. Due to the changing composition of the bacterial community, respiratory activity of the bacterial cells increased between day 3 and 7. Bacterial cells became larger in contaminated Danube water.