Abstract
Films on the oxygenase activity of indigenous microflora in oil-polluted soils having an oil concentration of 50 g/kg was studied. The oil utilization in experiments was 30–35 g/kg of soil versus 8–13 g/kg in the control. The IR spectroscopic determination of residual petroleum hydrocarbons showed the appearance of absorption bands at 1710 and 1600 cm−1, as well as an increase in the spectral coefficients C1, C2, A1, A2, and A2 by a factor 1.5–3 and a decrease in C3 and A3 by a factor 1.5–2.5, thus indicating intense oil oxidation in the presence of photoluminescent films. Chromatographic analysis data corroborated the occurrence of intense bio-degradation of acyclic saturated hydrocarbons. In experimental samples, light C9–C14 hydrocarbons completely disappeared and the concentration of higher C15–C28 hydrocarbons decreased by 70–80%. The oil biodegradation factor defined as the ratio of total isoalkanes (pristane + phytane) to total n-alkanes (C17 + C18) increases 5–6-fold when the photoluminescent films are used.
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