ИСТИНА

In the Western Siberia, Russia, big territories polluted by accidental crude oil are already have restored mainly by technologies of “on site” bioremediation. However, there are more a lot of fenny impassable bogs polluted by oil more than 20 years ago. On a surface of such old pollution an asphalt-like crust is formed and it remains without any change, and no plants grow there. These bogs need a remediation. Earlier in laboratory conditions we developed an anaerobic-aerobic method of bioremediation for fenny bogs polluted by fresh crude oil. And this method would allow us to carry out the bioremediation of such bogs without using heavy machinery and without breaking integrity of a marsh landscape and their biogeocenoses which has been developing there for eyelids As a result, on the first allotment, where the anaerobic-aerobic method of bioremediation was performed, the concentration of saturated HC in the peat layer of 0-10 cm was decreased by 23.0%, the concentration of aromatic HC – by 28.0%, and the concentration of resins-asphaltenes substances was decreased by 34.4%. In the peat layer of 10-25 cm on the same allotment the concentration of saturated HC was decreased by 72.6% (from 405g/kg to 111g/kg DM), the concentration of aromatic HC - by 66.5% (from 148.7g/kg to 49.9g/kg DM) and the concentration of resins-asphaltenes substances was decreased by 57.2% (from 106.9g/kg to 45.7g/kg DM). Indigenous microorganisms in the peat layer of 0-10 cm and 10-25 cm on the second allotment practically didn't show the decrease of the oil pollution. The same results were observed in the negative control (the third allotment)