| Autor: |
Michael J. Bazin, Peter T. Saunders |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Journal of Applied Chemistry and Biotechnology. 23:847-853 |
| ISSN: |
0375-9210 |
| Popis: |
Pirt's theory in which microbial growth in a packed column is considered to be limited by diffusion of nutrient is modified and extended to include a consideration of two species systems. Equations are derived to describe the fate of a substrate when the substrate itself is limiting microbial growth and when oxygen is limiting. In the latter case reactions obey zero order kinetics while in the substrate limited process 'half-order' kinetics occur. Theoretical considerations imply that limitation of microbial growth by surface area availability is unlikely. The limited experimental data available supports this conclusion but when the same data is applied to the theory of the active layer the results are inconclusive. Even if correct, the theory is not likely to be important in effluent purification. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
