[Objective] The aim was to investigate the effect of stoichiometric variables in AQUASIM, a simulation tool for digestion process. [Method] The ADM1 was modified in AQUASIM based on the existing physical experimental ...[Objective] The aim was to investigate the effect of stoichiometric variables in AQUASIM, a simulation tool for digestion process. [Method] The ADM1 was modified in AQUASIM based on the existing physical experimental data. Then the stoichiometric variables were adjusted in AQUASIM to test the effects of decay rate, maximum uptake rate and yield of ethanol in the simulation results. [Result] The biomass decay rate of ethanol was 0.02 per day; the maximum uptake rate of ethanol was 228 kgCOD_S/kg COD_X per day and the yield of ethanol was 0.029 5 kg COD_X/kg COD_S in this case. [Conclusion] The larger biomass decay rate of ethanol causes less accumulation of ethanol in the anaerobic digestion model simu- lation. Maximum uptake rate shows little effort to this modeling in a certain range. Larger yield of ethanol will get larger peak values in the simulation results.展开更多
文摘[Objective] The aim was to investigate the effect of stoichiometric variables in AQUASIM, a simulation tool for digestion process. [Method] The ADM1 was modified in AQUASIM based on the existing physical experimental data. Then the stoichiometric variables were adjusted in AQUASIM to test the effects of decay rate, maximum uptake rate and yield of ethanol in the simulation results. [Result] The biomass decay rate of ethanol was 0.02 per day; the maximum uptake rate of ethanol was 228 kgCOD_S/kg COD_X per day and the yield of ethanol was 0.029 5 kg COD_X/kg COD_S in this case. [Conclusion] The larger biomass decay rate of ethanol causes less accumulation of ethanol in the anaerobic digestion model simu- lation. Maximum uptake rate shows little effort to this modeling in a certain range. Larger yield of ethanol will get larger peak values in the simulation results.
