ISSN 2413-8452
READING
№ 4'2018
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The recultivation of oilcontaminated soils with the help of earthworms Dendrobena veneta and the complex of microorganisms
CHachina Svetlana Borisovna1, Baklanova Olga Nikolaevna2, CHachina Elizaveta Pavlovna1
1 Omsk State Technical University, Omsk, Russia
2 Institute of Hydrocarbons Processing of Siberian Branch of the Russian Academy of Sciences, Omsk, Russia
Abstract:
The earthworms are known to enhance the process of contaminants removal from the soil. The earthworms change physical and chemical properties of the soil by mixing it with organic substances through burrowing living habits thus improving the aeration and making contaminants accessible to the microorganisms. The method of oil contaminated soil bioremediation with oil concentrations up to 100 g/kg, in the presence of bacteria Paenibacillus pabuli, Azotobacter vinelandii, Lactobacillus casei, Clostridium limosum, Cronobacter sakazakii, Rhodotorulla mucilaginosa, Cryptococcus albidus, yeast Saccharomyces, Candida lipolitica, Candida norvegensis, Candida guilliermondii, fungi Aspergillus and Penicillium as well as Actinomycetales (KOE UFC)=2*1011 per mL) and D. veneta is proposed. During the experiment lasting for 5 months, a significant lowering (by 95...97%) in hydrocarbons content was registered in the soil with the earthworms and the biopreparation.
Keywords:
Reclamation, earthworms, microorganisms, soil pollution.
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