Bioremediation of oil polluted aquatic systems and soils with novel preparation 'Rhoder'.
This paper summarises the experience accumulated during the field application of biopreparation 'Rhoder' (solely or in a combination with preliminary mechanical collection of free oil) for remediation of oil polluted aquatic systems and soils in the Moscow region and Western Siberia during 1994-1999. It was demonstrated that 'Rhoder' had a very high efficiency (>99%) for bioremediation of the open aquatic surfaces (100 m2 bay of the River Chernaya, two 5,000 m2 lakes in Vyngayakha) at initial level of oil pollution of 0.4-19.1 g/l. During remediation of the wetland (2,000 m2) in Urai (initial level of oil pollution of 10.5 g/l), a preliminary mechanical collection of oil was applied (75% removal) followed by a triple treatment with 'Rhoder'. It resulted in an overall treatment efficiency of 94%. Relatively inferior results of bioremediation of the 10,000 m2 wetland in Vyngayakha (65% removal) and the 1,000 m2 marshy peat soil in Nizhnevartovsk (19% removal) can be attributed to the very high initial level of oil pollution (24.3 g/l and >750 g/g dry matter, respectively) aggravated by the fact that it was impossible to apply a preliminary mechanical collection of oil on these sites. A possible strategy for remediation of such heavily polluted sites is discussed.
Murygina
V
V
Department of Chemical Enzymology, Chemistry Faculty, Moscow State University, Russia.
Arinbasarov
M
M
Kalyuzhnyi
S
S
D001673:Biodegradation, Environmental; D010578:Petroleum / Q000378:metabolism*; D012240:Rhodococcus / Q000378:metabolism*; D012989:Soil Pollutants / Q000378:metabolism*; D013045:Species Specificity; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D010578:Petroleum; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical