Tower fermentor

Commercial-scale operations are conducted in batch, fed-batch, or continuous culture systems. Fermentation vessels include the conventional baffled aerated tank, with or without impeller agitation, and the ak-lift tower fermentors in which ak is sparged into an annular space between the... 

PLATE 4 Bioreactors that use mammalian cells, like this tower fermentor, are on the cutting edge of new biotechnology manufacturing processes. Courtesy, Cetus Corporation. 

Two major types of fermentors are widely used in industry. The stirred tank, with or without aeration (e.g., air sparging) is most widely used for aerobic and anaerobic fermentations, respectively. The bubble column (tower fermentor) and its modifications, such as airlifts, are used only for aerobic fermentations, especially of a large scale. The important operating variables of the sparged (aerated)... 

Keywords. Cellulose, Hemicellulose, LignoceUulose,Yeast, Pretreatment, Simultaneous saccharification and fermentation (SSF), Ethanol, Xylose, Tower fermentor. Air-lift loop fermentor... 

Fig.1. Schematic configuration of a tower fermentor with S. uvarum [12]...

Continuous ethanol fermentation using a tower fermentor with high floccu-... 

Continuous ethanol fermentation using a tower fermentor with high floccu-lent yeast strains has been studied in depth (see [13] for pertinent references). Overall, the system has the following characteristics ... 

Prokop A, Eriksson LE, Fernandez J, Humphrey AE. (1969) Design and physical characteristics of a multistage, continuous tower fermentor. Biotechnol. Bioeng., 2 945-966. 

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