FIELD: gas treatment. SUBSTANCE: acrylonitrile-containing gases are consecutively passed through apparatus with activated carbon and bioabsorber with charge, which is sprinkled with water suspension of biocatalyst based on nitrilehydratase enzyme-producing strains. EFFECT: enabled cleaning of gases within a wide range of acrylonitrile concentrations at low biocatalyst intake and without special regeneration of activated carbon. 3 cl, 1 dwg, 3 tbl
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