Summary
The use of a rotative flat disc atomizer for the production of biocatalysts immobilized in alginate gel was investigated. The influence of viscosity (0.28 to 1.53 Pa · s), disc diameter (5 to 20 cm), flow rate (0.5 to 2 L/min) and rotational speed (1.6 to 5 rev/s) on drop formation mechanisms, bead diameter and their distributions were investigated. Bead diameters ranging from 1 to 3 mm were been obtained. Flow rate and viscosity increases resulted in higher bead diameters but increasing disc diameter and rotational speed had a decreasing effect. A viscosity of 0.65 Pa · s would prove best for production of beads with good size distribution and mechanical strength. Predictive equations for the mean volumetric bead diameter were determined.
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Bégin, A., Castaigne, F. & Goulet, J. Production of alginate beads by a rotative atomizer. Biotechnol Tech 5, 459–464 (1991). https://doi.org/10.1007/BF00155493
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DOI: https://doi.org/10.1007/BF00155493