Solid—liquid mass transfer in a shaking vessel for a bioreactor with “current pole”

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AbstractA shaking vessel with “current pole”, which is a center pole installed at the bottom, had shorter mixing time than a shaking vessel with a cone at the bottom. The mass transfer rate on the suspended particles was also measured in the shaking vessel where ion‐exchange resin beads were used as the suspended particles. The dependence of the solid‐liquid mass transfer coefficient on the circulating frequency changed at the critical circulating frequency for complete suspension NJS. For a circulating frequency higher than NJS, the mass transfer coefficient was correlated with the power consumption per unit volume, regardless of presence or not of the current pole.