Define of effective process working combine mixing system

Abstract

Biogas technologies as an alternative energy source are widespread in the EU countries. But on the territory of the Russian Federation, this process is poorly understood. Since the potential from the use of biogas technologies is significant, a combined substrate mixing system has been proposed. Computer simulation of various mixing parameters was carried out and optimal modes were determined. As a result of a series of computational experiments, it was found that the developed mixing system allows the mixing time to be doubled in comparison with the traditional mechanical mixing system in a cylindrical bioreactor. At the same time, the uniformity of mixing is 16% higher. The volume of stagnant zones is 2.72 times lower. The obtained results give grounds to assume about a possible improvement of the habitat for microorganisms and, as a consequence, an increase in the rate of their distribution in the bi-oreactor, which in turn increases the rate of fermentation and the volume of biogas produced.