HYDROGEN KINETICS LIMITATION OF AN AUTOTROPHIC SULPHATE REDUCTION REACTOR

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dc.contributor.authorSaez Navarrete, Cesar
dc.contributor.authorRodriguez Cordova, Leonardo
dc.contributor.authorBaraza, Xavier
dc.contributor.authorGelmi, Claudio
dc.contributor.authorHerrera, Leandro
dc.date.accessioned2024-01-10T13:49:11Z
dc.date.available2024-01-10T13:49:11Z
dc.date.issued2012
dc.description.abstractSulphate-reducing bacteria (SRB) are microorganisms that can be used as removal agents in polluted water sources. The use of inorganic substrates in SRB systems could reduce the cost and simplify operation. However, the use of H-2 as an energetic substrate and the production of H2S as a metabolic product could produce kinetic limitations. The aim of this study was to assess the extent to which the kinetics of a sulphate reduction bioreactor was limited by its gas transfer capacity. Reactor kinetics were monitored by total pressure kinetics without sulphate limitation. It was concluded that the bioreactor design should be based on transfer properties. The uptake rate of H-2 reached a maximum of 10(-4) M/min, equivalent to a sulphate reduction rate of 3.4 g.L-1.d(-1). The hydrogen mass transfer rate required a k(L)a of 1.48 min(-1) at 1.2.10(9) cells/L in order to avoid limitation by H-2 bio-availability (1.23.10(-9)L.min(-1).cell(-1))(,) which is a relevant value for scaling-up purposes.
dc.description.funderNational Commission for Scientific and Technological Research (Comision Nacional de Investigacion Cientifica y Tecnologica, CONICYT) of the Chilean Government
dc.description.funderCODELCO Chile
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.issn0012-7353
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79430
dc.identifier.wosidWOS:000304498800015
dc.information.autorucIngeniería;Gelmi C;S/I;7637
dc.information.autorucIngeniería;Rodriguez L;S/I;127261
dc.information.autorucIngeniería;Saez C;S/I;104647
dc.issue.numero172
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final132
dc.pagina.inicio126
dc.publisherUNIV NAC COLOMBIA, FAC NAC MINAS
dc.revistaDYNA-COLOMBIA
dc.rightsregistro bibliográfico
dc.subjectSulphate reducing bacteria
dc.subjecthydrogen
dc.subjectmass transfer
dc.subjectautotrophic
dc.subjectACID-MINE DRAINAGE
dc.subjectIMPROVE WATER-QUALITY
dc.subjectREDUCING BACTERIA
dc.subjectDESULFOVIBRIO-DESULFURICANS
dc.subjectPROCESS EFFLUENTS
dc.subjectMASS-TRANSFER
dc.subjectHEAVY-METALS
dc.subjectBIOREMEDIATION
dc.subjectELIMINATION
dc.subjectREMEDIATION
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleHYDROGEN KINETICS LIMITATION OF AN AUTOTROPHIC SULPHATE REDUCTION REACTOR
dc.typeartículo
dc.volumen79
sipa.codpersvinculados7637
sipa.codpersvinculados127261
sipa.codpersvinculados104647
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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