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- Title
Heterotrophic nitrification and aerobic denitrification by a novel Halomonas campisalis.
- Authors
Guo, Yan; Zhou, Xuemei; Li, Yuguang; Li, Ke; Wang, Caixia; Liu, Jianfei; Yan, Daojiang; Liu, Yilan; Yang, Dehui; Xing, Jianmin
- Abstract
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. NO, NO and NH) 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 °C, with 4 % (w/v) NaCl and sodium succinate as carbon source. The nitrogen removal rate was 87.5 mg NO-N lh. Therefore, this strain is a potential aerobic denitrifier for the treatment of saline wastewater.
- Subjects
NITRIFICATION; DENITRIFICATION; HALOBACTERIUM; NITROGEN compounds; WASTEWATER treatment; GENOMES
- Publication
Biotechnology Letters, 2013, Vol 35, Issue 12, p2045
- ISSN
0141-5492
- Publication type
Article
- DOI
10.1007/s10529-013-1294-3