关键词: 好氧, 厌氧, 内循环生物反应器, 流体力学

Abstract: The hydrodynamics of a self-developed aerobic-anaerobic inner circulation bioreactor was studied, including the effect of superficial gas velocity, superficial liquid velocity and solid content on the pressure drop of the bed, gas holdup and liquid circulating volume. Results showed that with the increase of superficial gas velocity, the pressure drop of the bed decreased, gas holdup and liquid circulating volume increased. With the increase of solid content, the pressure drop of the bed increased, gas holdup and liquid circulating volume decreased. However, the influence of superficial liquid velocity was only a little.

Key words: aerobic, anaerobic, inner-circulation bioreactor, hydrodynamics