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dc.contributor.authorJones, Warren L.
dc.contributor.authorDockery, Jack D.
dc.contributor.authorVogel, C. R.
dc.contributor.authorSturman, Paul J.
dc.date.accessioned2017-11-14T22:45:04Z
dc.date.available2017-11-14T22:45:04Z
dc.date.issued1993-04
dc.identifier.citationJones WL, Dockery JD, Vogel CR, Sturman PJ, "Diffusion and reaction within porous packing media: A phenomenological model," Biotechnology and Bioengineering, 1993 41(10):947-956en_US
dc.identifier.issn0006-3592
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14011
dc.description.abstractA phenomenological model has been developed to describe biomass distribution and substrate depletion in porous diatomaceous earth (DE) pellets colonized by Pseudomonas aeruginosa. The essential features of the model are diffusion, attachment and detachment to/from pore walls of the biomass, diffusion of substrate within the pellet, and external mass transfer of both substrate and biomass in the bulk fluid of a packed bed containing the pellets. A bench-scale reactor filled with DE pellets was inoculated with P. aeruginosa and operated in plug flow without recycle using a feed containing glucose as the limiting nutrient. Steady-state effluent glucose concentrations were measured at various residence times, and biomass distribution within the pellet was measured at the lowest residence time. In the model, microorganism/substrate kinetics and mass transfer characteristics were predicted from the literature. Only the attachment and detachment parameters were treated as unknowns, and were determined by fitting biomass distribution data within the pellets to the mathematical model. The rate-limiting step in substrate conversion was determined to be internal mass transfer resistance; external mass transfer resistance and microbial kinetic limitations were found to be nearly negligible. Only the outer 5% of the pellets contributed to substrate conversion. .en_US
dc.titleDiffusion and reaction within porous packing media: A phenomenological modelen_US
dc.typeArticleen_US
mus.citation.extentfirstpage947en_US
mus.citation.extentlastpage956en_US
mus.citation.issue10en_US
mus.citation.journaltitleBiotechnology and Bioengineeringen_US
mus.citation.volume41en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1002/bit.260411005en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US
mus.data.thumbpage7en_US


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