Abstract
Experimental biodesulfurization (BDS) data for dibenzothiophene (DBT) (1.0-7.0 mM) with Rhodococcus rhodochorus immobilized by adsorption on silica, were adjusted with liquid-film kinetic model (Fisher coefficient, F = 592.74 and probability value p << 0.05 and r2 = 0.97). Simulations predict the presence of considerable amounts of DBT surrounding the particles, which would be available for the cells adsorbed on the surface of silica. The greatest percentage removal (50 %) was obtained for adsorbed cell system over the suspended bacterial cells (30 %), showing that sulfur substrates are more bioavailable when the bacterial cells are adsorbed on silica. The liquid-film modelling with diffusional effects provides proper theoretical basis to explain the BDS performance obtained using adsorbed cells.
Original language | English |
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Pages (from-to) | 549-556 |
Number of pages | 8 |
Journal | Ecological Chemistry and Engineering S |
Volume | 25 |
Issue number | 4 |
DOIs | |
State | Published - 2018 |
Bibliographical note
Publisher Copyright:© 2018 Christian Canales et al., published by Sciendo 2018.
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry