Kinetic analysis of simultaneous denitrification and biomineralization of novel Acinetobacter sp. CN86

Su, Jun-feng; Shi, Jing-xin; Huang, Ting-lin; Ma, Fang

Kinetic analysis of simultaneous denitrification and biomineralization of novel Acinetobacter sp. CN86

2016

Su, Jun-feng | Shi, Jing-xin | Huang, Ting-lin | Ma, Fang

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.

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