Kvasny Prum. 1977; 23(11): 257-261 | DOI: 10.18832/kp1977041

Design and properties of a new multi-stage tower fermenter.Peer-reviewed article

J. PÁCA

A new multi-stage tower fermenter, which has been recently developed, is characterized by unit construction, parallel flow of liquid and gaseous phases and mechanical mixing system. It consists of five stages separated by perforated plates. Each stage is fitted with two disc type turbine impellers and auxiliaries intensifying mixing are regulated in each of the stages individually. A series of experiments have been carried out to evaluate hydrodynamic behavior of the system and to study its components, i.e. pressure gradient, gas holdup efficiency, coefficient of back flow between stages, oxygen transfer rate in various stages and its relation to the impeller speeds and aerating conditions. Experiments were carried out under normal conditions typical for fermentation industry. The results show, that the new fermenter is suitable for processing both highly concentrated and volatile substrates.
(In Czech, English summary only)

Keywords: design, properties, multi-stage tower fermenter

Published: November 1, 1977