title: Biodegradation kinetics of picric acid by Rhodococcus sp.NJUST16 in batch reactors.
abstract: 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.
authors.affiliation: School of Chemical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Nanjing, Jiangsu Province, China.
authors.forename: Jinyou
authors.initials: J
authors.lastname: Shen
authors.forename: Rui
authors.initials: R
authors.lastname: He
authors.forename: Lianjun
authors.initials: L
authors.lastname: Wang
authors.forename: Jianfa
authors.initials: J
authors.lastname: Zhang
authors.forename: Yi
authors.initials: Y
authors.lastname: Zuo
authors.forename: Yanchun
authors.initials: Y
authors.lastname: Li
authors.forename: Xiuyun
authors.initials: X
authors.lastname: Sun
authors.forename: Jiansheng
authors.initials: J
authors.lastname: Li
authors.forename: Weiqing
authors.initials: W
authors.lastname: Han
mesh_terms: D001673:Biodegradation, Environmental; D019149:Bioreactors; D007700:Kinetics; D010851:Picrates / Q000378:metabolism*; D012240:Rhodococcus / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism; D018508:Water Purification / Q000379:methods
chemical_list: D010851:Picrates; D014874:Water Pollutants, Chemical; C005858:picric acid