Kinetic analysis of simultaneous denitrification and biomineralization of novel Acinetobacter sp. CN86.
A novel aerobic denitrification and biomineralization strain CN86 was isolated from the Qu Jiang artificial lake. Based on phylogenetic characteristics, the isolated strain was identified as Acinetobacter species. Strain CN86 was confirmed to have the ability to perform simultaneous denitrification and biomineralization. Exponential decay equation was used for the matching of kinetic processes on denitrification and biomineralization. A highest nitrate removal rate was achieved at the pH7.0, organic concentration of 1.5g/L and temperature of 30°C. An optimal hardness removal rate was obtained at the pH9.0, organic concentration of 2.0g/L and temperature of 30°C. Strain CN86 is a suitable candidate for the simultaneous removal of nitrate and hardness in groundwater treatment.
School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Jun-Feng
JF
Su
School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Jing-Xin
JX
Shi
School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Ting-Lin
TL
Huang
State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Fang
F
Ma
D000150:Acinetobacter / Q000302:isolation & purification*; D000332:Aerobiosis; D058440:Denitrification; D007700:Kinetics; D009566:Nitrates; D058465:Nitrification; D009573:Nitrites; D010802:Phylogeny
D009566:Nitrates; D009573:Nitrites
Acinetobacter sp.; Biomineralization; Denitrification; Kinetic