Mass Transfer In Bioreactors. The efficiency of mass transfer increases with increasing surface area available for transfer. The local gas holdup was also measured using tomography.
Mass transfer in the bioreactor can be referred to tranfer of gas liquid or solid molecules accross the bioreactor. Flow regime bubble size distribution and coalescence characteristics ga s holdup interfacial mass transfer coefficients gas liquid interfacial area dispersion coefficients and heat transfer coefficients are important design parameters for airlift bioreactors. Application to bioreactors in environmental protection e.
Reactive red 272 the presented mathematical model includes all the transport phenomena.
The local mass transfer coefficients were measured using three dissolved oxygen sensors installed at three various heights of the bioreactor. Convection dispersion diffusion and mass transfer from. A physical model based on a surface renewal concept and additional data in 40 dm 3 bubble column bioreactor are presented. In this case the equation for o2 transfer within the pores of the bed is co2ε t db o2 2co 2 z2 kaaxco2 hc f o2 2 where co2 is the concentration of o2 within the pores ε the porosity of the bed ka the mass transfer coefficient for o2 at the airbiofilm interface ax the area of the airbiofilm.