Biodegradation kinetics of picric acid by Rhodococcus sp.NJUST16 in batch reactors.


Biological degradation of 2,4,6-trinitrophenol (TNP) by Rhodococcus sp.NJUST16 in mineral salt medium was investigated in shake-flask experiments at pH of 7.0 and 30 degrees C, over a wide range of initial TNP concentration (20-800 mgl(-1)). The TNP was observed to be the inhibitory compound. For the studied concentration range, Haldane's model could be fitted to the growth kinetics data well with the kinetic constants mu(max)=0.2362 h(-1), K(s)=9.9131 mgl(-1) and K(i)=362.7411 mgl(-1). Further, the variation of observed yield coefficient Y with initial TNP concentration and the decay coefficient were investigated. It is our view that the above information would be useful for modeling and designing the units treating TNP-containing wastewaters.

DOI: 10.1016/j.jhazmat.2008.12.100


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@article{Shen2009BiodegradationKO, title={Biodegradation kinetics of picric acid by Rhodococcus sp.NJUST16 in batch reactors.}, author={Jinyou Shen and Rui He and Lianjun Wang and Jianfa Zhang and Yi Y Zuo and Yanchun Li and Xiuyun Sun and Jian-sheng Li and Weiqing Han}, journal={Journal of hazardous materials}, year={2009}, volume={167 1-3}, pages={193-8} }