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The purpose of the study was to assess the impact of industrial wastewater on the concentration of methanol
in the considered section of the Ob River basin, present proposals for the implementation of a new treatment system
and analyse the implementation results. On the basis of the results of the analysis of the known methods for reducing
the concentration of methanol in water, a new technological scheme for post-treatment of effluents using biological
treatment with methylotrophic Methylomonas methanica Dg bacteria was proposed. The calculation of the dilution of
treated wastewater using the “NDS Ecolog” program was carried out on the basis of the detailed calculation method
of Karaushev, the results of which showed a decrease in the concentration of methanol in the control section to
0.0954 mg∙dm–3 (permissible concentration is 0.1 mg∙dm–3 ). During the period of the flood of the Glukhaya channel, it
ceases to be a separate water body and, in fact, becomes part of the flood channel of the Ob River. Certain parts of the
flooded areas, due to elevation changes, communicate with the channel only during a short period of time when the
water level rises, i.e. 3–5 weeks during the flood period, and in fact remain isolated reservoirs for the rest of the time,
potentially acting as zones of accumulation and concentration of pollutants.
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