Use of a tapered fluidized bed as a Continuous bioreactor
| Autor: | Charles D. Scott, C. W. Hancher |
|---|---|
| Rok vydání: | 1976 |
| Předmět: |
Pressure drop
Nitrates Denitrification Chromatography Materials science Nitrogen Biomass Lactose Bioengineering Biochemistry Applied Microbiology and Biotechnology Galactosidases Volumetric flow rate Models Chemical Chemical engineering Fluidized bed Pseudomonas Bioreactor Degradation (geology) Rheology Oxidation-Reduction Sparging Biotechnology |
| Zdroj: | Biotechnology and Bioengineering. 18:1393-1403 |
| ISSN: | 1097-0290 0006-3592 |
| DOI: | 10.1002/bit.260181006 |
| Popis: | Reactor systems based on tapered fluidized beds are being developed for aqueous bioprocesses in which adhering microorganisms or immobilized active biological fractions are used. The use of a fluidized bed prevents biomass buildup, accommodates particulates in the feed stream, is compatible with gas sparging, and allows easy removal or addition of the active materials. The tapered reactor tends to stabilize the fluidized bed, thus allowing a much wider range of operating conditions. Preliminary experimental results and an empirical mathematical model of the tapered bed indicate that bed stability is associated with a decreasing velocity and void-fraction profile up the bed and the pressure drop across the bed decreases with increasing flow rates. The tapered fluidized bed bioreactor is being evaluated for use in the enzymatic production of hydrogen, microbiological denitrification, and microbiological degradation of coal conversion aqueous waste streams. The enzyme catalyzed conversion of lactose to glucose and galactose was used in the evaluation of the reactor concept. |
| Databáze: | OpenAIRE |
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