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Record nummer 2105393
Titel artikel Respirometric characterization of aerobic sulfide, thiosulfate and elemental sulfur oxidation by S-oxidizing biomass
Auteur(s) Mora, M. ; López, L.R. ; Lafuente, J. ; Pérez, J. ; Kleerebezem, R. ; Loosdrecht, M.C.M. van ; Gamisans, X. ; Gabriel, D.
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer 89(2016)February
Paginering 282 - 292
Online full text
Trefwoorden (cab) sulfiden (anorganisch) / zwavel / oxidatiemiddelen / bacteriën / thiothrix / respirometrie / kinetica / microbiële flora / waterkwaliteit / afvalwaterbehandeling / biomassa
Rubrieken Waterkwaliteit
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Respirometry was used to reveal the mechanisms involved in aerobic biological sulfide oxidation and to characterize the kinetics and stoichiometry of a microbial culture obtained from a desulfurizing biotrickling filter. Physical–chemical processes such as stripping and chemical oxidation of hydrogen sulfide were characterized since they contributed significantly to the conversions observed in respirometric tests. Mass transfer coefficient for hydrogen sulfide and the kinetic parameters for chemical oxidation of sulfide with oxygen were estimated. The stoichiometry of the process was determined and the different steps in the sulfide oxidation process were identified. The conversion scheme proposed includes intermediate production of elemental sulfur and thiosulfate and the subsequent oxidation of both compounds to sulfate. A kinetic model describing each of the reactions observed during sulfide oxidation was calibrated and validated.
Betrokken instanties Technische Universiteit Delft
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