期刊
BIOTECHNOLOGY LETTERS
卷 35, 期 12, 页码 2045-2049出版社
SPRINGER
DOI: 10.1007/s10529-013-1294-3
关键词
Aerobic denitrification; Halomonas campisalis; Halophilic bacterium; Heterotrophic nitrification
资金
- National Natural Science Foundation of China [21207060, 21076216]
A novel halophilic strain that could carry out heterotrophic nitrification and aerobic denitrification was isolated and named as Halomonas campisalis ha3. It removed inorganic nitrogen compounds (e.g. NO3 (-), NO2 (-) and NH4 (+)) simultaneously, and grew well in the medium containing up to 20 % (w/v) NaCl. PCR revealed four genes in the genome of ha3 related to aerobic denitrification: napA, nirS, norB and nosZ. The optimal conditions for aerobic denitrification were pH 9.0, at 37 A degrees C, with 4 % (w/v) NaCl and sodium succinate as carbon source. The nitrogen removal rate was 87.5 mg NO3 (-)-N l(-1) h(-1). Therefore, this strain is a potential aerobic denitrifier for the treatment of saline wastewater.
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