Modeling of Bubble-induced Mixing of Organic Substrate in Biogas Generating Bioreactor

Abstract

A mathematical model of bubble-induced mixing of organic substrate in a biogas generating bioreactor is developed. The model describes motion of a two-phase medium consisting of liquid phase–biomass and disperse phase–bubbling gas under turbulent operating conditions. The model is based on equations in both general dimensionless and criterial form, which allows its use for designing and calculating bubble reactors of various capacities.