Studies on the effect of concentration of a self-inhibitory substrate on biofilm reaction rate under co-diffusion and counter diffusion configurations
|Title:||Studies on the effect of concentration of a self-inhibitory substrate on biofilm reaction rate under co-diffusion and counter diffusion configurations||Authors:||Syron, Eoin
|Permanent link:||http://hdl.handle.net/10197/2758||Date:||15-Jun-2009||Online since:||2011-02-15T12:36:57Z||Abstract:||A simple mathematical model was developed to investigate the utilization rate of a self-inhibitory substrate in idealised biofilm reactors operating with either counter-diffusion or co-diffusion of oxygen and phenol. This study has implications for the development of membrane-supported biofilm technologies, such as the membrane-aerated biofilm reactor. An unsteady-state formulation of the model was used to investigate the effect of shock loads of phenol on biofilm performance. It was found that the counter-diffusion configuration may be advantageous under high phenol concentrations provided the biofilm thickness is above a critical value. The performance advantage of the counter-diffusion configuration is gained by the presence of an oxygen depleted layer, adjacent to the liquid–biofilm interface which acts as a diffusive barrier to phenol transport to the region of respiratory activity.||Funding Details:||Not applicable||Type of material:||Journal Article||Publisher:||Elsevier||Journal:||Journal of Membrane Science||Volume:||335||Issue:||1-2||Start page:||76||End page:||82||Copyright (published version):||2009 Elsevier B.V.||Keywords:||Biofilm; Phenol; Aeration; Membrane; Model; Shock load; Inhibition||Subject LCSH:||Biofilms
|DOI:||10.1016/j.memsci.2009.02.038||Other versions:||http://dx.doi.org/10.1016/j.memsci.2009.02.038||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Chemical and Bioprocess Engineering Research Collection|
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