Decontamination of aged alcohol bardplaced in ground depositories

The article presents the results of composting aged alcohol bard by composting in the laboratory. The study focused on samples of aged post-distillery grain collected from storage sites near the village of Rozhdestveno in the Samara region. The composting mass was continuously aerated, and wood chips were added as a bulking agent. Composting was carried out while maintaining a moisture level in the range of 45-60%. Throughout the process, the compost temperature and moisture were continuously monitored. The compost was regularly analyzed for chemical components, including ammonium, nitrite, nitrate nitrogen, organic matter, BOD 5, and COD of water extract. Additionally, samples of the composting mass were analyzed by gas chromatography throughout the experiment. The obtained results helped to trace the dynamics of chemical transformations during the composting of aged post-distillery grain and demonstrated the effectiveness of the chosen method for treating this waste.