Biological Nitrogen Removal Database
A manually curated data resource for microbial nitrogen removal
Biological Nitrogen Removal Database
A manually curated data resource for microbial nitrogen removal
Influent:Raw water
Anammox system:Simultaneous nitrification and denitrification (SND)
Anammox reactor:nan
Medium:nan
Culture taken from:Raw water
Microorganism cultured:Acinetobacter sp. Y16
Respiration:Aerobic
Electron donor:Ammonium chloride
Electron acceptor:Oxygen, Nitrite, Nitrate
PH:7.5
Ammonia removal rate:1.03 ± 0.15 mg L-1 h-1
Nitrate removal rate:nan
Ammonia Removal efficiency (%):66.00 ± 4.16%
Nitrate Removal efficiency (%):56.73 ± 4.19%
Total Nitrogen Removal (%):66.00 ± 4.16%
Carbon Source:Sodium acetate
Final products:Nitrogen
Major findings:A novel Acinetobacter sp. Y16 was isolated from oligotrophic niche. It exhibited efficient ammonium removal ability at 2C, with nitrogen gas as the end gaseous product in aerobic conditions. The nitrogen metabolic pathway for strain Y16 was heterotrophic nitrification coupled with aerobic nitrite/nitrate denitrification. The strong adaptability of strain Y16 to low C/N ratio and low temperature conditions made it a promising candidate for treating micro-polluted source water in cold regions
Authors:Huang et al., 2013
Title:Ammonium removal by a novel oligotrophic Acinetobacter sp. Y16 capable of heterotrophic nitrification-aerobic denitrification at low temperature
Pubmed link:Link
Full research link:Link
Abstract:Ammonium removal from source water is usually inhibited by insufficient carbon sources and low temperature in Northeastern China. A strain Y16 was isolated from oligotrophic niche and was identified as Acinetobacter sp. Y16. It demonstrated excellent capability for ammonium removal at 2 °C, and simultaneously produced nitrogen gas as the end product. About 66% of ammonium was removed after 36 h of incubation. Only trace accumulation of nitrate was observed during the process. The utilization of nitrite and nitrate as well as the existence of napA gene further proved the aerobic denitrification ability of strain Y16. Sodium acetate was the most favorable carbon source for ammonium oxidation by strain Y16. High rotation speed was beneficial for ammonium oxidation. Furthermore, strain Y16 could efficiently remove ammonium at low C/N ratio and low temperature conditions, which was advantageous for nitrogen removal from source water under cold temperatures.