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Culture of bacteria in an aerated, rectangular tank reactor
Author(s) -
Backhurst J.R.,
Chaalal O.,
Harker J.H.,
Hancock I.C.,
Mellstrom C.
Publication year - 1991
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1991.tb00490.x
Subject(s) - aeration , anaerobic exercise , oxygen , bacteria , biomass (ecology) , volume (thermodynamics) , mixing (physics) , bacterial growth , bioreactor , volumetric flow rate , growth rate , chemistry , airflow , pulp and paper industry , environmental science , biology , botany , ecology , mechanics , mathematics , thermodynamics , physics , genetics , physiology , geometry , organic chemistry , quantum mechanics , engineering
Aerobic bacterial growth was assessed in a simple rectangular vessel with good mixing achieved solely by air flow. Growth became oxygen limited at culture densities below 1·5 mg dry wt/ml, even at maximum air flow and the extent of oxygen‐sufficient growth depended on the volume of the culture and the air flow rate. However, the system permitted high retention of biomass growing attached to kiesel‐ghur beads, indicating conditions of low shear. The system may be suitable for cheap cultivation of slow‐growing micro‐organisms and for anaerobic or shear‐sensitive cultures.