<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Experimental biodesulfurization (BDS) data for dibenzothiophene (DBT) (1.0-7.0 mM) with <italic>Rhodococcus rhodochorus</italic> immobilized by adsorption on silica, were adjusted with liquid-film kinetic model (Fisher coefficient, <italic>F</italic> = 592.74 and probability value <italic>p</italic> &lt;&lt; 0.05 and <italic>r</italic><sup>2</sup> = 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.</p></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.

Kinetic Analysis for Biodesulfurization of Dibenzothiophene using <italic>R. rhodochrous</italic> Adsorbed on Silica

Institute of Chemistry, Faculty of Sciences

Pontifical Catholic University of Valparaíso

Ecological Chemistry and Engineering S

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Kinetic Analysis for Biodesulfurization of Dibenzothiophene using  Adsorbed on Silica

Experimental biodesulfurization (BDS) data for dibenzothiophene (DBT) (1.0-7.0 mM) with Rhodococcus rhodochorus immobilized by adsorption on silica, were...

Kinetic Analysis for Biodesulfurization of Dibenzothiophene using R. rhodochrous Adsorbed on Silica

Pubblicato online: 03 gen 2019

Pagine: 549 - 556

DOI: https://doi.org/10.1515/eces-2018-0036

Parole chiave
adsorption, biodesulfurization, immobilization, kinetic analysis,

© 2018 Christian Canales et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Kinetic Analysis for Biodesulfurization of Dibenzothiophene using R. rhodochrous Adsorbed on Silica

Pubblicato online: 03 gen 2019

Pagine: 549 - 556

DOI: https://doi.org/10.1515/eces-2018-0036

Parole chiaveadsorption, biodesulfurization, immobilization, kinetic analysis,

© 2018 Christian Canales et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
adsorption, biodesulfurization, immobilization, kinetic analysis,