Verification of Dispersion Model on Anaerobic Reaction Simulation

A dispersion model was established on the combination of biological reaction and related physical-operational characteristics, such as dispersion, diffusion, cell accumulation and transportation. Also, the feasibility of the dispersion model in anaerobic filter digester simulation was identified. Under low loading rate and without recirculation, the digester behaves like a plug flow reactor. Therefore, the simulated results of dispersion model and plug flow model are similiar. However, at higher loading rate, the dispersion of digester increases, and the simulated results of the dispersion model are closer to experimental data than the plug model. That proved the applicability of dispersion model in anaerobic reaction simulation.