The reaction between permanganate ion and ninhydrin in the presence of phosphoric acid in aqueous solution shows sustained oscillations in a continuously stirred tank reactor (CSTR). It exhibits a kinetic bistability between an oscillatory and a stationary state. Our new oscillating system seems to
A comparison between the reaction rates in biofilm reactors and free suspended cells bioreactors
β Scribed by D. G. Karamanev; L. N. Nikolov
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 365 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1615-7605
No coin nor oath required. For personal study only.
β¦ Synopsis
A theoretical equation for comparison of the bioreaction rates in a biofilm reactor and in a bioreactor with free suspended cells at different input substrate concentrations and substrate conversions is proposed. The main assumption is that there is no kinetic change after fixation of the cells. Some previously published experimental data are used for verification of this equation. It is shown that difference between the experimental and calculated data is within 19%.
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David and Wllermaux (1987,1989) and Muhr et al. (1990) have developed and applied a multizone mixing model (MZM) for semi-batch single jet mixing in stirred tanks. The aim of the present paper is to generalize the multizone model (MZM) to the case of a semi-batch stirred tank with two separate feeds
Recently, Atkinson et al. [l] reported measurements on the reaction of ozone with a series of carbonyls. In that study a correlation between ozone addition and hydroxyl-radical addition reactions was employed to predict OH addition coefficients for acrolein and crotonaldehyde of approximately 2 X an