The effects of initial concentration, flow rate and recycle ratio were studied in a cylinderical reactor packed with activated carbon which was attached with biomass.
The optimum conditions of Bacillus licheniformis were showed as pH was 7.0 and
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The effects of initial concentration, flow rate and recycle ratio were studied in a cylinderical reactor packed with activated carbon which was attached with biomass.
The optimum conditions of Bacillus licheniformis were showed as pH was 7.0 and
temperature was 30 degrees centigrade. In the case of initial concentration of 20mg ??-N/L, the removal efficiency was above 90% and it was from 63 to 80% for 80mg ??-N/L.
According to the increase of initial concentration and flow rate, the removal efficiency was gradually decreased. For all of the initial concentrations and flow rates in the range of this experiment, the final concentration of Nitrate was decreased to the concentration of 1∼2mg ??-N/L when the recycle ratio is 4.
As a rational basis of reactor design, mathematical model of biological denitrification in Fluidized Bed Biofilm Reactor was derived.
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where
a = ??
b = ??