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题名: Novel heterotrophic nitrogen removal and assimilation characteristic of the newly isolated bacterium Pseudomonas stutzeri AD-1
作者: Qing, Hui1, 2; Donde, Oscar Omondi1, 3; Tian, Cuicui1; Wang, Chunbo1; Wu, Xingqiang1; Feng, Shanshan1, 2; Liu, Yao1, 2; Xiao, Bangding1
关键词: Aerobic denitrification ; Bacteria assimilation ; Pseudomonas ; Nitrogen removal ; Trace N2O emission
刊名: JOURNAL OF BIOSCIENCE AND BIOENGINEERING
发表日期: 2018-09-01
DOI: 10.1016/j.jbiosc.2018.03.010
卷: 126, 期:3, 页:339-345
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Biotechnology & Applied Microbiology ; Food Science & Technology
研究领域[WOS]: Biotechnology & Applied Microbiology ; Food Science & Technology
英文摘要: AD-1, an aerobic denitrifier, was isolated from activated sludge and identified as Pseudomonas stutzeri. AD-1 completely removed NO3- or NO2- and removed 99.5% of NH4+ during individual culturing in a broth medium with an initial nitrogen concentration of approximately 50 mg L. Results showed that larger amounts of nitrogen were removed through assimilation by the bacteria. And when NH4+ was used as the sole nitrogen source in the culture medium, neither NOi nor NOT was detected, thus indicating that AD-1 may not be a heterotrophic nitrifier. Only trace amount of N20 was detected during the denitrification process. Single factor experiments indicated that the optimal culture conditions for AD-1 were: a carbon-nitrogen ratio (C/N) of 15, a temperature of 25 degrees C and sodium succinate or glucose as a carbon source. In conclusion, due to the ability of AD-1 to utilize nitrogen of different forms with high efficiencies for its growth while producing only trace emissions of N20, the bacterium had outstanding potential to use in the bioremediation of high-nitrogen-containing wastewaters. Meanwhile, it may also be a proper candidate for biotreatment of high concentration organic wastewater. (C) 2018, The Society for Biotechnology, Japan. All rights reserved.
关键词[WOS]: NITRIFICATION-AEROBIC DENITRIFICATION ; WASTE-WATER ; AMMONIUM REMOVAL ; N2O EMISSION ; NITRATE ; STRAIN ; CARBON ; BIOREMEDIATION
语种: 英语
项目资助者: Major Science and Technology Program for Water Pollution Control and Treatment of China(2013ZX07102005) ; National Natural Science Foundation of China(31670465)
WOS记录号: WOS:000445980500009
ISSN号: 1389-1723
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/56150
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Egerton Univ, Dept Environm Sci, Egerton 53620115, Kenya
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