Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria

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dc.contributor.authorOyekola, Oluwaseun O
dc.contributor.authorvan Hille, Rob
dc.contributor.authorHarrison, Susan T L
dc.date.accessioned2016-08-19T11:34:18Z
dc.date.available2016-08-19T11:34:18Z
dc.date.issued2007
dc.date.updated2016-08-19T08:48:17Z
dc.description.abstractThis study investigated the effect of sulphate concentration and residence time on the performance of anaerobic sulphate reduction by a mixed sulphate reducing bacteria (SRB) culture using lactate as the sole carbon source and electron donor. The process perforrnance is related to the population structure of the microbial consortia and dominant metabolic reactions. Laboratory scale chemostat cultures at different residence times (1-4 d) and sulphate concentrations (1.0-10.0 glL) were employed. Lactate oxidation was prevalent at feed sulphate concentrations of 1.0 to 5.0 glL. A colresponding increase in the volumetric sulphate reduction rate with increasing volumetric loading rate was also observed at this range. However, at the higher feed sulphate concentration range (10.0-15.0 glL), sulphate inhibition, lactate fermentation and an increased microbial diversity were evident. At each feed concentration of sulphate in the range 5.0 to 15.0 glL, varying dilution rates resulted in significant shifts in dominant metabolic reactions. Sulphate concentration and residence time have significant effects on both the structure of the microbial population and kinetics of biological sulphate reduction.en_ZA
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/AMR.20-21.513
dc.identifier.apacitationOyekola, O. O., van Hille, R., & Harrison, S. T. L. (2007). Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria. <i>Advanced Materials Research</i>, http://hdl.handle.net/11427/21359en_ZA
dc.identifier.chicagocitationOyekola, Oluwaseun O, Rob van Hille, and Susan T L Harrison "Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria." <i>Advanced Materials Research</i> (2007) http://hdl.handle.net/11427/21359en_ZA
dc.identifier.citationOyekola, O. O., van Hille, R. P., & Harrison, S. T. (2007). Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria. In Advanced Materials Research (Vol. 20, pp. 513-515). Trans Tech Publications.en_ZA
dc.identifier.issn1022-6680en_ZA
dc.identifier.ris TY - Journal Article AU - Oyekola, Oluwaseun O AU - van Hille, Rob AU - Harrison, Susan T L AB - This study investigated the effect of sulphate concentration and residence time on the performance of anaerobic sulphate reduction by a mixed sulphate reducing bacteria (SRB) culture using lactate as the sole carbon source and electron donor. The process perforrnance is related to the population structure of the microbial consortia and dominant metabolic reactions. Laboratory scale chemostat cultures at different residence times (1-4 d) and sulphate concentrations (1.0-10.0 glL) were employed. Lactate oxidation was prevalent at feed sulphate concentrations of 1.0 to 5.0 glL. A colresponding increase in the volumetric sulphate reduction rate with increasing volumetric loading rate was also observed at this range. However, at the higher feed sulphate concentration range (10.0-15.0 glL), sulphate inhibition, lactate fermentation and an increased microbial diversity were evident. At each feed concentration of sulphate in the range 5.0 to 15.0 glL, varying dilution rates resulted in significant shifts in dominant metabolic reactions. Sulphate concentration and residence time have significant effects on both the structure of the microbial population and kinetics of biological sulphate reduction. DA - 2007 DB - OpenUCT DP - University of Cape Town J1 - Advanced Materials Research LK - https://open.uct.ac.za PB - University of Cape Town PY - 2007 SM - 1022-6680 T1 - Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria TI - Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria UR - http://hdl.handle.net/11427/21359 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21359
dc.identifier.vancouvercitationOyekola OO, van Hille R, Harrison STL. Effect of sulphate concentration on the community structure and activity of sulphate reducing bacteria. Advanced Materials Research. 2007; http://hdl.handle.net/11427/21359.en_ZA
dc.languageengen_ZA
dc.publisherTrans Tech Publicationsen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.sourceAdvanced Materials Researchen_ZA
dc.source.urihttp://www.scientific.net/AMR
dc.subject.otherAcid mine drainage
dc.subject.otherBiological sulphate reduction
dc.subject.otherKinetics
dc.subject.otherPopulation dynamic
dc.titleEffect of sulphate concentration on the community structure and activity of sulphate reducing bacteriaen_ZA
dc.typeJournal Articleen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceArticleen_ZA
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