Collect. Czech. Chem. Commun. 1984, 49, 386-391

Evaluation of variations of backmixing in bubble column type fermentors in dependence on the axial coordinate

Ivo Havlík, Petr Janík and Jaroslav Votruba

Microbiological Institute, Czechoslovak Academy of Sciences, 142 20 Prague 4


Analysis of experimental data from a batch column has shown the coefficient of backmixing to increase in dependence on the distance from the column bottom. Limiting values may differ by up to an order of magnitude. Original method has been worked out, based on the method of moments, to process experimental data obtained as a response of the column to a tracer impulse.