期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 21, 期 10, 页码 1336-1341出版社
SCIENCE PRESS
DOI: 10.1016/S1001-0742(08)62423-7
关键词
Providencia rettgeri YL; heterotrophic ammonium removal; aerobic denitrification
资金
- National Natural Science Foundation of China [20676078]
Bacterium Providencia rettgeri YL was found to exhibit an unusual ability to heterotrophically nitrify and aerobically denitrify various concentrations of ammonium (NH4+-N). In order to further understand its removal ability, several experiments were conducted to identify the growth and ammonium removal response at different carbon to nitrogen (C/N) mass ratios, shaking speeds, temperatures, ammonium concentrations and to qualitatively verify the production of nitrogen gas using gas chromatography techniques. Results showed that under optimum conditions (C/N 10, 30 degrees C, 120 r/min), YL can significantly remove low and high concentrations of ammonium within 12 to 48 h of growth, respectively. The nitrification products hydroxylamine (NH2OH), nitrite (NO2-) and nitrate (NO3-) as well as the denitrification product, nitrogen gas (N-2), were detected under completely aerobic conditions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据