Oxidation of refractory organics in attached growth systems: Initial bacterial adsorption

Rao Bhamidimarri S.M., Greenfield P.F. and Bell P.R.F. (1987) Oxidation of refractory organics in attached growth systems: Initial bacterial adsorption. Journal of Fermentation Technology, 65 4: 449-456. doi:10.1016/0385-6380(87)90142-7


Author Rao Bhamidimarri S.M.
Greenfield P.F.
Bell P.R.F.
Title Oxidation of refractory organics in attached growth systems: Initial bacterial adsorption
Journal name Journal of Fermentation Technology
ISSN 0385-6380
Publication date 1987
Sub-type Article (original research)
DOI 10.1016/0385-6380(87)90142-7
Volume 65
Issue 4
Start page 449
End page 456
Total pages 8
Abstract The initial adsorption of a mixed bacterial culture, capable of degrading a phenolic wastestream, on a range of possible support particles was studied in a fluidized bed column. Activated carbon was found to be the most effective support in promoting initial attachment which was well described by a Langmuir type isotherm with values of Cv max and K being 5.48 × 10-3 (g cell DW) (gsupport)-1 and 3.88 (liter) (g cell DW)-1, respectively. Irreversible adsorption occurred very rapidly due either to initial chemical binding or to the immediate synthesis of binding exo-polymers which were observed by SEM at a later state of growth. Actively growing cultures adsorbed more rapidly and more extensively than either those in the stationary or death phase. No temperature effects were observed over the range 18-30°C because of the importance to the initial attachment/detachment of the hydrodynamics and particle collisions.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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