Print Email Facebook Twitter Inhibition of a biological sulfide oxidation under haloalkaline conditions by thiols and diorgano polysulfanes Title Inhibition of a biological sulfide oxidation under haloalkaline conditions by thiols and diorgano polysulfanes Author Roman, Pawel (Wetsus, Centre for Sustainable Water Technology; Wageningen University & Research) Lipińska, Joanna (Warsaw University of Technology; Wetsus, Centre for Sustainable Water Technology) Bijmans, Martijn F M (Wetsus, Centre for Sustainable Water Technology) Sorokin, Dimitry Y. (TU Delft BT/Environmental Biotechnology; Russian Academy of Sciences) Keesman, Karel J. (Wetsus, Centre for Sustainable Water Technology; Wageningen University & Research) Janssen, Albert J H (Shell Global Solutions International B.V.; Wageningen University & Research) Date 2016-09-15 Abstract 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. Subject Diorgano polysulfanesKinetic constantsRespirometrySulfide oxidizing bacteriaThioalkalivibrioThiols To reference this document use: http://resolver.tudelft.nl/uuid:fa47a0c6-ddd0-42f3-9747-53b6552d039c DOI https://doi.org/10.1016/j.watres.2016.06.003 Embargo date 2017-12-04 ISSN 0043-1354 Source Water Research, 101, 448-456 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2016 Pawel Roman, Joanna Lipińska, Martijn F M Bijmans, Dimitry Y. Sorokin, Karel J. Keesman, Albert J H Janssen Files PDF 9365527_Inhibition_of_a_b ... R_2016.pdf 1.02 MB Close viewer /islandora/object/uuid:fa47a0c6-ddd0-42f3-9747-53b6552d039c/datastream/OBJ/view