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Biofiltration of Pyridine by Shewanella putrefaciens in a Corn‐Cob Packed Biotrickling Filter
Author(s) -
Mathur Anil Kumar,
Majumder C. B.
Publication year - 2008
Publication title -
clean – soil, air, water
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 66
eISSN - 1863-0669
pISSN - 1863-0650
DOI - 10.1002/clen.200700090
Subject(s) - biofilter , shewanella putrefaciens , inlet , chemistry , chromatography , filter (signal processing) , packed bed , analytical chemistry (journal) , environmental engineering , environmental science , biology , mechanical engineering , computer science , engineering , computer vision , genetics , bacteria
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 –3 and 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 –3 h –1 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.