Study on the kinetic process mechanism of purifying SO2 and NOx simultaneously from flue gas by liquid catalyzed oxidation-microbiological method

A study on the kinetic process mechanism of the SO
2
and NO
x
removal simultaneously from flue gas by liquid catalyzed oxidation-microbiological method, which could greatly improve the SO
2
and NO
x
purification capability of biotrickling filter, was studied in this article. Chemical catalyzed oxidation process and biological oxidation process were mainly included in the experimental systems of biotrickling filter which performed desulfuration and denitrification purification process. The findings of kinetic process suggested that the biochemical degradation reactions of SO
2
and NO
x
in biofilm were both first-order reactions. The biochemical reactions of SO
2
and NO were both the fast-rate reactions. To promote the purification process rate could by accelerating the mass-transfer rate of SO
2
and NO
x
from main stream of gas flow to the surface of moist microorganism membrane.