Show simple item record

dc.contributor.authorBeyenal, Haluk
dc.contributor.authorLewandowski, Zbigniew
dc.date.accessioned2017-07-20T14:07:32Z
dc.date.available2017-07-20T14:07:32Z
dc.date.issued2005-08
dc.identifier.citationBeyenal H, Lewandowski Z, "Modeling mass transport and microbial activity in stratified biofilms," Chem Eng Sci, 2005 60:4337-4348en_US
dc.identifier.issn0009-2509
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/13352
dc.description.abstractThe most recent mathematical models of microbial activity in heterogeneous biofilms are based on cellular automata. The main weakness of these models is that to obtain numerical solutions the operator must specify the rules governing microbial cell behaviour in the biofilm, and these rules are difficult to establish experimentally. To avoid this difficulty, we have used an alternative approach, discretizing biofilms into layers, to include the effects of biofilm heterogeneity on biofilm activity. This procedure conceptually converts heterogeneous biofilms into a stack of stratified layers of various densities, activities, and diffusivities, and can include some effects of biofilm heterogeneity, e.g., vertical distribution of biofilm density, activity, and effective diffusivity. We present this model and selected examples of computational procedures illustrating it. We found that the activity of homogeneous biofilms can be lower, higher, or equal to the activity of stratified biofilms; since homogeneous biofilms do not exist, their properties have to be assumed. As expected, the model predicts that the growth-limiting nutrient penetrates deeper into stratified biofilms than it does into homogeneous biofilms.en_US
dc.titleModeling mass transport and microbial activity in stratified biofilmsen_US
dc.typeArticleen_US
mus.citation.extentfirstpage4337en_US
mus.citation.extentlastpage4348en_US
mus.citation.issue15en_US
mus.citation.journaltitleChemical Engineering Scienceen_US
mus.citation.volume60en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1016/j.ces.2005.02.063en_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.thumbpage2en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record