Inhibition of a biological sulfide oxidation under haloalkaline conditions by thiols and diorgano polysulfanes.
A novel approach has been developed for the simultaneous description of reaction kinetics to describe the formation of polysulfide and sulfate anions from the biological oxidation of hydrogen sulfide (H2S) using a quick, sulfide-dependent respiration test. Next to H2S, thiols are commonly present in sour gas streams. We investigated the inhibition mode and the corresponding inhibition constants of six thiols and the corresponding diorgano polysulfanes on the biological oxidation of H2S. A linear relationship was found between the calculated IC50 values and the lipophilicity of the inhibitors. Moreover, a mathematical model was proposed to estimate the biomass activity in the absence and presence of sulfurous inhibitors. The biomass used in the respiration tests originated from a full-scale biodesulfurization reactor. A microbial community analysis of this biomass revealed that two groups of microorganism are abundant, viz. Ectothiorhodospiraceae and Piscirickettsiaceae.
Sub-department of Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands. Electronic address: Pawel.Roman@wetsus.nl.
Pawel
P
Roman
Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Faculty of Chemistry, Warsaw University of Technology, Noakowskiego St. 3, 00-664 Warsaw, Poland.
Joanna
J
Lipińska
Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands.
Martijn F M
MFM
Bijmans
Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Prospect 60-let Oktyabrya 7/2, 117811 Moscow, Russia; Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands.
Dimitry Y
DY
Sorokin
Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlands; Biobased Chemistry & Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands.
Karel J
KJ
Keesman
Sub-department of Environmental Technology, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands; Shell Technology Centre Bangalore, RMZ Centennial Campus B, Kundalahalli Main Road, 560 048 Bengaluru, India.
Albert J H
AJH
Janssen
D006862:Hydrogen Sulfide; D010084:Oxidation-Reduction; D013438:Sulfhydryl Compounds; D013440:Sulfides; D013455:Sulfur
D013438:Sulfhydryl Compounds; D013440:Sulfides; D013455:Sulfur; D006862:Hydrogen Sulfide
Diorgano polysulfanes; Kinetic constants; Respirometry; Sulfide oxidizing bacteria; Thioalkalivibrio; Thiols