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Biodegradation of pyridine by an isolated bacterial consortium/strain and bio-augmentation of strain into activated sludge to enhance pyridine biodegradation

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Title Biodegradation of pyridine by an isolated bacterial consortium/strain and bio-augmentation of strain into activated sludge to enhance pyridine biodegradation
 
Creator LODHA, B
BHADANE, R
PATEL, B
KILLEDAR, D
 
Subject microbial-metabolism
degradation
derivatives
kinetics
biokinetics
quinoline
phenol
soil
bio-augmentation
biokinetic
activated sludge
n-heterocyclic compound
pyridine
growth kinetics
 
Description Pyridine and pyridine based products are of major concern as environmental pollutants due to their recalcitrant, persistent, toxic and teratogenic nature. In this study, we describe biodegradation of pyridine by an isolated consortium/strain under aerobic condition. Batch experiment results reveal that at lower initial pyridine concentrations (1-20 mg l(-1)), almost complete degradation was observed whereas at higher concentration (30-50 mg l(-1)), the degradation efficiency was dropped significantly. This may be due to inhibitory effect of pyridine at higher concentrations. The value of decay and yield coefficient was also determined. Furthermore, the bio-augmentation of isolated consortium/strain into the activated sludge consortium in different quantity has been also done and the effect of bio-augmentation on degradation has been studied. The results reveal that as the quantity of bio-augmentation increases, the degradation of pyridine increases. At 25% bio-augmentation, complete degradation of 20 mg l(-1) of pyridine can be achieved within 96 h of incubation. Thus, the study concluded that the bio-augmentation of the isolated consortium/strain into the sludge enhances the pyridine degradation efficiency of the biomass.
 
Publisher SPRINGER
 
Date 2011-08-29T10:22:48Z
2011-12-26T12:58:32Z
2011-12-27T05:48:42Z
2011-08-29T10:22:48Z
2011-12-26T12:58:32Z
2011-12-27T05:48:42Z
2008
 
Type Article
 
Identifier BIODEGRADATION, 19(5), 717-723
0923-9820
http://dx.doi.org/10.1007/s10532-008-9176-4
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12053
http://hdl.handle.net/10054/12053
 
Language en