A kinetic study on anaerobic reduction of sulphate, Part I: Effect of sulphate concentration

 

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dc.contributor.author Moosa, S
dc.contributor.author Nemati, M
dc.contributor.author Harrison, S T L
dc.date.accessioned 2016-08-19T12:34:44Z
dc.date.available 2016-08-19T12:34:44Z
dc.date.issued 2002
dc.identifier http://dx.doi.org/10.1016/S0009-2509(02)00152-5
dc.identifier.citation Moosa, S., Nemati, M., & Harrison, S. T. L. (2002). A kinetic study on anaerobic reduction of sulphate, Part I: Effect of sulphate concentration. Chemical Engineering Science, 57(14), 2773-2780. en_ZA
dc.identifier.issn 0009-2509 en_ZA
dc.identifier.uri http://hdl.handle.net/11427/21371
dc.description.abstract The kinetics of anaerobic reduction of sulphate was studied in continuous bioreactors. The effects of initial sulphate concentration and its volumetric loading on the kinetics of reaction and activity of sulphate-reducing bacteria were investigated. The increase in initial concentration of sulphate in the range 1.0–Full-size image (<1 K) enhanced the reaction rate from 0.007–Full-size image (<1 K). For a given initial sulphate concentration increasing the volumetric loading rate of sulphate led to a linear increase in volumetric reduction rate. The initial concentration of sulphate did not have a significant effect on maximum specific growth rate (μm), decay coefficient (kd) on bacterial yields (Yx/sulphate and Yx/acetate), with the values of these coefficients being Full-size image (<1 K) bacteria/g sulphate and Full-size image (<1 K) bacteria/g acetate, respectively. The saturation constant (Ks) was an increasing linear function of initial sulphate concentration, with the lowest and highest values being 0.027 and Full-size image (<1 K), respectively. Using the experimental data a kinetic model, incorporating terms for the effects of initial and residual concentrations of sulphate and biomass, was developed. en_ZA
dc.language eng en_ZA
dc.publisher Elsevier en_ZA
dc.rights Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ en_ZA
dc.source Chemical Engineering Science en_ZA
dc.source.uri http://www.journals.elsevier.com/chemical-engineering-science/
dc.subject.other Sulphate-reducing bacteria
dc.subject.other Continuous bioreactor
dc.subject.other Kinetics
dc.subject.other Mathematical modeling
dc.subject.other Bioremediation
dc.title A kinetic study on anaerobic reduction of sulphate, Part I: Effect of sulphate concentration en_ZA
dc.type Journal Article en_ZA
dc.date.updated 2016-08-19T07:23:54Z
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
uct.type.filetype Text
uct.type.filetype Image


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