摘要
采用稳定性同位素δ15N标识含氮化合物和微生物,通过分子识别技术,分别对封闭系统和动态系统的氮化合物进行研究,以解决氮化合物的定量化及其相互关系问题。结果表明,用δ15N标识技术检测反硝化反应的定性定量关系行之有效;同时,反硝化反应具有使反硝化产物富集15N的特点,硝化反应具有使硝化产物贫化15N的特点。
Using stable δ15N isotope as the nitrogen cycle study tracer, the molecule recognition technique was employed to identify and quantify the interrelationships among the various nitrogen containing compounds and biomass in batch and A^2/O biological wastewater treatment systems. The results have demonstrated that the δ15N based identification technique was beneficial for establishing quantitative relationships of the nitrogen compounds/biomass involved in both nitrification and denitrification reactions. Most of 15N was found in the denitrification reaction products; a much smaller faction of 15N appeared in the nitrification products.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2007年第2期123-126,共4页
Environmental Pollution & Control
关键词
δ15N标识
脱氮
微生物
硝化
反硝化
δ15N identification Denitrify Microorganism Nitrification Denitrification
