Disruption of microorganisms due to agitation in slurries of fine particles

 

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dc.contributor.advisor Harrison, STL en_ZA
dc.contributor.advisor Hansford, Geoffrey Spearing en_ZA
dc.contributor.author Pearce, Sarah Jane Amanda en_ZA
dc.date.accessioned 2016-03-01T07:44:42Z
dc.date.available 2016-03-01T07:44:42Z
dc.date.issued 1993 en_ZA
dc.identifier.citation Pearce, S.J.A. 1993. Disruption of microorganisms due to agitation in slurries of fine particles. Thesis. University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Chemical Engineering. http://hdl.handle.net/11427/17406 en_ZA
dc.identifier.uri http://hdl.handle.net/11427/17406
dc.description Bibliography: pages 149-155. en_ZA
dc.description.abstract This dissertation presents the results of an investigation into the disruption of microorganisms when agitated in slurries of fine particles in a stirred tank. The most widely used industrial process involving agitation of microorganisms in slurries of particles in stirred tanks is the biooxidation process. Mixed cultures of thiobacilli are used in stirred tank reactors for the biooxidation of sulphide minerals. In addition to operating conditions, the efficiency of biotechnological processes is dependent on the growth and metabolism of the microorganisms. The microorganisms are sensitive to the hydrodynamic conditions generated in the processes. In response to adverse hydrodynamic conditions there may be changes in the growth rate of the microorganisms, the nutrient uptake rate, the product formation rate and morphology of the microorganisms. Under extreme conditions cell damage and disruption may ensue. The presence of particulates in bioprocesses, in the form of solid substrates or support systems for attached growth, further complicate the hydrodynamic conditions. The knowledge of the effect of particulates on microorganisms is an important priority. en_ZA
dc.language.iso eng en_ZA
dc.subject Bioprocess Engineering
dc.title Disruption of microorganisms due to agitation in slurries of fine particles en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Chemical Engineering en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Pearce, S. J. A. (1993). <i>Disruption of microorganisms due to agitation in slurries of fine particles</i>. (Thesis). University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/17406 en_ZA
dc.identifier.chicagocitation Pearce, Sarah Jane Amanda. <i>"Disruption of microorganisms due to agitation in slurries of fine particles."</i> Thesis., University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Chemical Engineering, 1993. http://hdl.handle.net/11427/17406 en_ZA
dc.identifier.vancouvercitation Pearce SJA. Disruption of microorganisms due to agitation in slurries of fine particles. [Thesis]. University of Cape Town ,Faculty of Engineering and the Built Environment ,Department of Chemical Engineering, 1993 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17406 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Pearce, Sarah Jane Amanda AB - This dissertation presents the results of an investigation into the disruption of microorganisms when agitated in slurries of fine particles in a stirred tank. The most widely used industrial process involving agitation of microorganisms in slurries of particles in stirred tanks is the biooxidation process. Mixed cultures of thiobacilli are used in stirred tank reactors for the biooxidation of sulphide minerals. In addition to operating conditions, the efficiency of biotechnological processes is dependent on the growth and metabolism of the microorganisms. The microorganisms are sensitive to the hydrodynamic conditions generated in the processes. In response to adverse hydrodynamic conditions there may be changes in the growth rate of the microorganisms, the nutrient uptake rate, the product formation rate and morphology of the microorganisms. Under extreme conditions cell damage and disruption may ensue. The presence of particulates in bioprocesses, in the form of solid substrates or support systems for attached growth, further complicate the hydrodynamic conditions. The knowledge of the effect of particulates on microorganisms is an important priority. DA - 1993 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1993 T1 - Disruption of microorganisms due to agitation in slurries of fine particles TI - Disruption of microorganisms due to agitation in slurries of fine particles UR - http://hdl.handle.net/11427/17406 ER - en_ZA


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