Please use this identifier to cite or link to this item: http://hdl.handle.net/11189/3405
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dc.contributor.authorGodongwana, Buntuen_US
dc.contributor.authorDe Jager, Debbieen_US
dc.contributor.authorSheldon, Marshall Sen_US
dc.contributor.authorEdwards, Wen_US
dc.date.accessioned2016-01-14T09:50:38Z-
dc.date.available2016-01-14T09:50:38Z-
dc.date.issued2009-
dc.identifier.citationGodongwana, B., De Jager, D., Sheldon, M. S., & Edwards, W. (2009). The effect of Streptomyces coelicolor development on the hydrodynamics of a vertically orientated capillary membrane gradostat reactor. Journal of Membrane Science, 333(1), 79-87.en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.memsci.2009.01.051-
dc.identifier.urihttp://hdl.handle.net/11189/3405-
dc.descriptionGodongwana. B., de Jager. D., Sheldon. M. S., & Edwards. W., (2009). The effect of Streptomyces coelicolor development on the hydrodynamics of a vertically orientated capillary membrane gradostat reactor. Journal of Membrane Science, 333(1), 79-87. DOI: http://dx.doi.org/10.1016/j.memsci.2009.01.051en_US
dc.description.abstractAn empirical correlation for the effect of a Streptomyces coelicolor biofilm on hydraulic permeability is presented. This relation was based on a two-phase logistic fit of the biofilm growth kinetics, taking into account uneven growth of the biofilm. The model was applied to a vertically orientated, pressure-controlled, membrane gradostat reactor (MGR) operated in the dead-end mode. The permeability correlation developed was further used in the investigation of the effect of bacterial growth on velocity and pressure profiles of the nutrient solution in the lumen of the MGR. The velocity profiles emanating from the application of the model were in correspondence with the observed flux decline in the pressure-controlled MGRs. The hydrostatic pressure profiles pointed to the existence of a critical hydraulic permeability of the biofilm, below which there is recirculation of the nutrient solution back to the membrane lumen. Even at hydraulic permeabilities much higher than the predicted crit, this recirculation was marked by the existence of the secondary metabolite, actinorhodin, in the lumen of the MGR.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectBiofilm hydraulic permeabilityen_US
dc.subjectBiofilm growth kineticsen_US
dc.subjectCapillary membraneen_US
dc.subjectMembrane gradostat reactoren_US
dc.subjectModellingen_US
dc.subjectSecondary metabolitesen_US
dc.subjectStreptomyces coelicoloren_US
dc.titleThe effect of Streptomyces coelicolor development on the hydrodynamics of a vertically orientated capillary membrane gradostat reactoren_US
dc.typeArticleen_US
Appears in Collections:Eng - Journal articles (DHET subsidised)
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