Modelling and simulation of dry anaerobic fermentation

Abstract

The paper is focused on mathematical modelling and computer simulation of the anaerobic fermentation mechanism for neutral or slightly acid and acid fermentation. Degradation of organic substances to final products, methane and carbon dioxide, involves their coordinated metabolic cooperation. A product of one microorganism group turns into substrate for the subsequent ones. Generally, the studied anaerobic fermentation processes progress in four stadiums, therefore a mathematical model of four-level decomposition is used. All mentioned processes were modeled through differential equations and computed and simulated in the MATLAB+SIMULINK environment.