TY - JOUR
T1 - Removal of sulfur-containing organic molecules adsorbed on inorganic supports by Rhodococcus Rhodochrous spp.
AU - Carvajal, P.
AU - Dinamarca, M. Alejandro
AU - Baeza, P.
AU - Camú, E.
AU - Ojeda, J.
N1 - Funding Information:
The authors are grateful to the Chilean government for financial support from CONICYT through FONDECYT Grant 1150544.
Publisher Copyright:
© 2016, Springer Science+Business Media Dordrecht.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Objective: To remove dibenzothiophene (DBT) and 4,6-dimethyl-dibenzothiophene (4,6-DMDBT) adsorbed on alumina, silica and sepiolite through biodesulfurization (BDS) using Rhodococcus Rhodochrous spp., that selectively reduce sulfur molecules without generating of gaseous pollutants. Results: The adsorption of DBT and 4,6-DMDBT was affected by the properties of the supports, including particle size and the presence of surface acidic groups. The highest adsorption of both sulfur-containing organic molecules used particle sizes of 0.43–0.063 mm. The highest percentage removal was with sepiolite (80 % for DBT and 56 % for 4,6-DMDBT) and silica (71 % for DBT and 37 % for 4,6-DMDBT). This is attributed to the close interaction between these supports and the bacteria. Conclusions: Biodesulfurization is effective for removing the sulfur-containing organic molecules adsorbed on inorganic materials and avoids the generation of gaseous pollutants.
AB - Objective: To remove dibenzothiophene (DBT) and 4,6-dimethyl-dibenzothiophene (4,6-DMDBT) adsorbed on alumina, silica and sepiolite through biodesulfurization (BDS) using Rhodococcus Rhodochrous spp., that selectively reduce sulfur molecules without generating of gaseous pollutants. Results: The adsorption of DBT and 4,6-DMDBT was affected by the properties of the supports, including particle size and the presence of surface acidic groups. The highest adsorption of both sulfur-containing organic molecules used particle sizes of 0.43–0.063 mm. The highest percentage removal was with sepiolite (80 % for DBT and 56 % for 4,6-DMDBT) and silica (71 % for DBT and 37 % for 4,6-DMDBT). This is attributed to the close interaction between these supports and the bacteria. Conclusions: Biodesulfurization is effective for removing the sulfur-containing organic molecules adsorbed on inorganic materials and avoids the generation of gaseous pollutants.
KW - Adsorption
KW - Biodesulfurization
KW - Inorganic supports
KW - Rhodococcus rhodochrous
KW - Sulfur-containing organic molecules
UR - http://www.scopus.com/inward/record.url?scp=84991824731&partnerID=8YFLogxK
U2 - 10.1007/s10529-016-2240-y
DO - 10.1007/s10529-016-2240-y
M3 - Article
C2 - 27766485
AN - SCOPUS:84991824731
VL - 39
SP - 241
EP - 245
JO - Biotechnology Letters
JF - Biotechnology Letters
SN - 0141-5492
IS - 2
ER -