Taking into consideration the scope and duration of environment pollution by oil products, the necessity and objectives of cleaning are the main link of the ecological problems in Ukraine. The feature is that oil products restricted in soil at the initial accumulation place is even dangerous as free oil product. Cleaning of the geological environment within the vadose zone, where it is impossible to use engineering techniques, can only be associated with the activity of microorganisms mainly mikromitcety flora whose the features of location and vital activity depend on the depth, the level of contamination, aerobic conditions, etc.

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