Relationship between Biofilm Distribution and Flow of Gas-liquid Two Phase in Biotrickling Filter
The performance of biotrickling filter was affected by porous materials, biofilm and two phase liquid. In the packed-bed bioreactor liquid flow greatly affected the formation and distribution of biofilm, in return the distribution of biofilm had an obvious influence on the flow of two phase liquid. Characteristics of variation of porosity rate and air pressure drop versus different gas flux and liquid flux in packed-bed was respectively studied in the experiment. Results indicated that after successful growth of biofilm the porosity rate of the packed-bed increased with the height of packed-bed rising. Before formation of biofilm the effect of gas flux on the pressure drop of packed-bed was highly greater than that of liquid flux, while after biofilm formation the fluid flux had more influence upon the pressure drop of packed-bed than that of the gas flux and the pressure drop of packed-bed was greatly higher than that before biofilm formation.
biotrickling filterbiofilmcharacteristics of two-phase flowresistance of fluid flow
NETL
NSTL
万方数据
维普
