Nitrogen Removal Characteristics of Pseudomonas putida Y-9 Capable of Heterotrophic Nitrification and Aerobic Denitrification at Low Temperature

被引：68

作者：

Xu, Yi ^{[1
]}

He, Tengxia ^{[1
]}

Li, Zhenlun ^{[1
]}

Ye, Qing ^{[1
]}

Chen, Yanli ^{[1
]}

Xie, Enyu ^{[1
]}

Zhang, Xue ^{[1
]}

机构：

[1] Southwest Univ, Chongqing Key Lab Soil Multiscale Interfacial Pro, Chongqing 400716, Peoples R China

来源：

BIOMED RESEARCH INTERNATIONAL | 2017年 / 2017卷

关键词：

DENITRIFYING BACTERIUM; AMMONIUM REMOVAL; STRAIN; BIOREMEDIATION; CAPABILITY; NITRITE; NITRATE; SLUDGE;

D O I：

10.1155/2017/1429018

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The cold-adapted bacterium Pseudomonas putida Y-9 was investigated and exhibited excellent capability for nitrogen removal at 15 degrees C. The strain capable of heterotrophic nitrification and aerobic denitrification could efficiently remove ammonium, nitrate, and nitrite at an average removal rate of 2.85mg, 1.60 mg, and 1.83 mg NL-1 h(-1), respectively. Strain Y-9 performed nitrification in preference to denitrification when ammonium and nitrate or ammonium and nitrite coexisted in the solution. Meantime, the presence of nitrate had no effect on the ammonium removal rate of strain Y-9, and yet the presence of high concentration of nitrite would inhibit the cell growth and decrease the nitrification rate. The experimental results indicate that P. putida Y-9 has potential application for the treatment of wastewater containing high concentrations of ammonium along with its oxidation products at low temperature.

引用

页数：7

共 38 条

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