Changes in the microbial consortium during the disposal of aged post-fermentation distillery grain using the aerobic composting method

The change in the consortium of microorganisms during the disposal of aged post-fermentation distillery grain by aerobic composting using the biopreparation-oil destructor “Lenoil”® SHP containing microorganisms of the genera Ochrobactrum sp. and Acinetobacter sp . has been assessed. In the initial waste, microorganisms of the genera: Acidothermus sp. , Proteus sp. , Pseudomonas sp. , Bacillus sp. , Escherichia sp. , Staphylococcus sp. , and Enterobacter sp. were isolated. After the application of the biopreparation, the following genera of microorganisms were identified: Ochrobactrum sp. , Acinetobacter sp. , Pseudomonas sp. , Bacillus sp. , Escherichia sp. , Staphylococcus sp., and Enterobacter sp. The use of the biopreparation promoted the development of existing microbial populations as well as the introduction of new species. The application of the biopreparation has made it possible to increase the number of microorganisms that contribute to more effective decomposition of organic compounds and reduction of inorganic nitrogen concentration during the disposal of aged post-fermentation distillery grain using the aerobic composting method.