Дослідження ефективного рівня швидкості перемішування в біореакторі

• Дата: 2021
• Автори: Воробйова, Ольга, Корнієнко, Катерина, Шафаренко, Микола
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Kamianets-Podilskyi National Ivan Ohiienko University 2021
• Онлайн доступ: http://mcm-tech.kpnu.edu.ua/article/view/251070
• Назва журналу: Mathematical and computer modelling. Series: Technical sciences

With the development of industrialization and population growth in recent decades have led to environmental disruptions in wastewater. The classification and comparative characteristics of wastewater treatment methods were made in the article. Safe and cost-effective biological treatment is an important issue to consider, especially for industries that need to find cost-effective treatment methods to meet acceptable discharge levels. Immobilized microorganisms on carriers have greater resistance to toxicity and low sludge yield. Made of natural material, inert carriers do not require complex experimental preparation at an earlier stage. The technology of immobilized microbial degradation is used mainly due to its high density of microorganisms, low sludge yield, more resistant to toxicity and continuous operation. The study of mixing in a bioreactor using mixing devices is a difficult task due to the problem of obtaining accurate information about the flow rate and pressure caused by the stirrer. The aim of the study is to determine the effective level of mixing speed in the form of a three-bladed propeller stirrer for industrial biogas reactors. Theoretical calculations of the mixing speed due to hydrodynamic calculation were used in solving the tasks. Using 3D modeling of the SolidWorks package, the efficiency of the stirrer speed level was investigated by distributing the velocity vectors of the substrate flows. The speed level with a speed of 6.3 s–1 for a bioreactor with a volume of 10 m3 showed that the simulation is effective. Computer simulations make it possible to investigate the mixing efficiency of the substrate and to help with the modernization of existing industrial treatment plants.