Removal of Nitrate in Simulated Water at Low Temperature by a Novel Psychrotrophic and Aerobic Bacterium, Pseudomonas taiwanensis Strain J
Joint Authors
He, Tengxia
Ye, Qing
Sun, Quan
Cai, Xi
Ni, Jiupai
Li, Zhenlun
Xie, Deti
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-28
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Low temperatures and high pH generally inhibit the biodenitrification.
Thus, it is important to explore the psychrotrophic and alkali-resisting microorganism for degradation of nitrogen.
This research was mainly focused on the identification of a psychrotrophic strain and preliminary explored its denitrification characteristics.
The new strain J was isolated using the bromothymol blue solid medium and identified as Pseudomonas taiwanensis on the basis of morphology and phospholipid fatty acid as well as 16S rRNA gene sequence analyses, which is further testified to work efficiently for removing nitrate from wastewater at low temperature circumstances.
This is the first report that Pseudomonas taiwanensis possessed excellent tolerance to low temperature, with 15°C as its optimum and 5°C as viable.
The Pseudomonas taiwanensis showed unusual ability of aerobic denitrification with the nitrate removal efficiencies of 100% at 15°C and 51.61% at 5°C.
Single factor experiments showed that the optimal conditions for denitrification were glucose as carbon source, 15°C, shaking speed 150 r/min, C/N 15, pH≥7, and incubation quantity 2.0 × 106 CFU/mL.
The nitrate and total nitrogen removal efficiencies were up to 100% and 93.79% at 15°C when glucose is served as carbon source.
These results suggested that strain J had aerobic denitrification ability, as well as the notable ability to tolerate the low temperature and high pH.
American Psychological Association (APA)
Ye, Qing& Sun, Quan& Cai, Xi& Ni, Jiupai& Li, Zhenlun& Xie, Deti…[et al.]. 2018. Removal of Nitrate in Simulated Water at Low Temperature by a Novel Psychrotrophic and Aerobic Bacterium, Pseudomonas taiwanensis Strain J. BioMed Research International،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1127019
Modern Language Association (MLA)
Ye, Qing…[et al.]. Removal of Nitrate in Simulated Water at Low Temperature by a Novel Psychrotrophic and Aerobic Bacterium, Pseudomonas taiwanensis Strain J. BioMed Research International No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1127019
American Medical Association (AMA)
Ye, Qing& Sun, Quan& Cai, Xi& Ni, Jiupai& Li, Zhenlun& Xie, Deti…[et al.]. Removal of Nitrate in Simulated Water at Low Temperature by a Novel Psychrotrophic and Aerobic Bacterium, Pseudomonas taiwanensis Strain J. BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1127019
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1127019