Chugunov V.A., Martovetskaia I.I., Mironova R.I., Fomchenkov V.M., Kholodenko V.P. |
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Abstract
A possibility of microbiological cleaning of water and soil polluted with asymmetric
dimethylhydrazine (ADMH), a highly toxic rocket fuel ingredient (RFI), was studied. Several
isolates (bacteria, yeast, and micromycetes) capable of utilizing ADMH as the only source of nitrogen,
carbon, and energy were isolated from RFI-polluted tundra soil. Acceleration of RFI biodegradation was
achieved using a biosorbent that involved cells of the degrader strain immobilized on granulated
activated carbon. Biological testing in Escherichia coli and cereals (wheat and barley) demonstrated
that biodegradation significantly decreased the integral toxicity of solutions containing ADMH, suggesting
its utility for microbiological cleaning of polluted territories. |