Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems

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dc.contributor.authorKotsiopoulos, Athanasiosen_ZA
dc.date.accessioned2015-01-01T12:41:32Z
dc.date.available2015-01-01T12:41:32Z
dc.date.issued2012en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractIn this thesis, it is hypothesized that in bioleaching flow reactor systems, high reaction rate regions exist that can be maintained by application of biological stress trajectories. Reactor models are developed for the purpose of optimising plant operation, understood here as maximising the production rate. Complicating this attempt are a) the non-linear dynamics associated with the kinetics and b) the primary reaction's being multiphase. Mathematical models are developed to establish which particle parameters are necessary to describe reactor performance using the method of segregation. The models are distinguished by the combination of either particle residence time or age and/or particle size distributions. The models evaluated at steady state are validated against pilot plant data obtained from the Fairview Mine in South Africa and were found to be in good agreement with the data. As the model was developed using a segregation approach and thus incorporates age distributions in the model formulation, the model could be extended to unsteady state operation.en_ZA
dc.identifier.apacitationKotsiopoulos, A. (2012). <i>Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/10849en_ZA
dc.identifier.chicagocitationKotsiopoulos, Athanasios. <i>"Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2012. http://hdl.handle.net/11427/10849en_ZA
dc.identifier.citationKotsiopoulos, A. 2012. Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems. University of Cape Town.en_ZA
dc.identifier.risTY - Thesis / Dissertation AU - Kotsiopoulos, Athanasios AB - In this thesis, it is hypothesized that in bioleaching flow reactor systems, high reaction rate regions exist that can be maintained by application of biological stress trajectories. Reactor models are developed for the purpose of optimising plant operation, understood here as maximising the production rate. Complicating this attempt are a) the non-linear dynamics associated with the kinetics and b) the primary reaction's being multiphase. Mathematical models are developed to establish which particle parameters are necessary to describe reactor performance using the method of segregation. The models are distinguished by the combination of either particle residence time or age and/or particle size distributions. The models evaluated at steady state are validated against pilot plant data obtained from the Fairview Mine in South Africa and were found to be in good agreement with the data. As the model was developed using a segregation approach and thus incorporates age distributions in the model formulation, the model could be extended to unsteady state operation. DA - 2012 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 T1 - Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems TI - Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems UR - http://hdl.handle.net/11427/10849 ER -en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/10849
dc.identifier.vancouvercitationKotsiopoulos A. Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2012 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/10849en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentCentre for Bioprocess Engineering Researchen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBioprocess Engineeringen_ZA
dc.titleDevelopment of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systemsen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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