Biofiltration of Pyridine by Shewanella putrefaciens in a Corn‐Cob Packed Biotrickling Filter

Abstract

In this study, a new strain of microorganism Shewanella putrefaciens was used for biofiltration of a pyridine laden air stream in a corn-cob packed biotrickling filter. In the biotrickling filter tested with S. putrefaciens, the maximum removal of pyridine is determined to be 100% at less than the average inlet concentration of 0.653 g m -3and more than 93% at a higher average inlet concentration of 1.748 g m -3 (phase VIII) with an empty bed residence time (EBRT) of 106 s. However, when the biotrickling filter was operated at a low EBRT of 53 s and almost the same average inlet concentration of 1.752 g m -3 (phase VII), the removal level attained was not greater than 85%. The maximum elimination capacity (EC) of the biotrickling filter was 102.34 g m at an inlet pyridine load of 119.62 g m -3 h -1 with an EBRT of 53 s in phase VII. The maximum deviation of the EC from the 100% conversion line varied from 0.257 to 10.166% when going from phase I to VIII. Kinetic analysis showed that the maximum removal rate, r max , and saturation constant, K s , values for pyridine were calculated as 0.24 g m -3 h -1 and 6.44 g m -3 , respectively, with a correlation coefficient, R 2 , of 0.9939 and a standard deviation of error of 23.94%. The information contained herein indicates that the corn-cob packed biotrickling filter inoculated by S. putrefaciens should provide excellent performance in the removal of gaseous pyridine.

Co-treatment of single, binary and ternary mixture gas of ethanethiol, dimethyl disulfide and thioanisole in a biotrickling filter seeded with Lysinibacillus sphaericus RG-1

“…According to the linear relationship between 1/C ln and (V/Q)/(C 0 − C e ), V max and K m were calculated from the intercept and slope, respectively [30][31][32][33].…”

Modelling and kinetic aspects of a BTEX contaminated air-treating biofilter

“…For this system, the coefficient of determination (r 2 ) of BTEX compounds was greater than 0.97. The reported values in table 1 for BTEX are significant compared with the values reported in the literature for other compounds[17][18][19][20][32][33][34].…”

Application of Pseudomonas putida TISTR152 Immobilized on Plant Leaves for Benzene Adsorption

“…Adsorption mechanisms of every selected plant leaf material were preliminary analyzed by Fourier transform infrared spectrometry (FT–IR). In addition, natural packing beads were applied for biofilters in many studies, and a high pollutant removal efficiency was found . Pseudomonas putida was widely applied as a benzene removal microorganism in many studies because the microorganism could completely degrade benzene .…”