Journal
MARINE POLLUTION BULLETIN
Volume 109, Issue 1, Pages 87-94Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.06.017
Keywords
Denitrification; Kinetic; Biomineralization; Acinetobacter sp.
Funding
- National Key Technology Research and Development Program of the Ministry of Science and Technology of China - Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2012BAC04B02, QA201518]
- Key Laboratory of the Education Department of Shan Xi Province [12JS051]
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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 pH 7.0, organic concentration of 1.5 g/L and temperature of 30 degrees C. An optimal hardness removal rate was obtained at the pH 9.0, organic concentration of 2.0 g/L and temperature of 30 degrees C. Strain CN86 is a suitable candidate for the simultaneous removal of nitrate and hardness in groundwater treatment. (C) 2016 Elsevier Ltd. All rights reserved.
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