反硝化作用

The strain could denitrify sodium nitrate in aerobic environment and nitrify in the culture media with sodium acetate as carbon source and ammonium sulfate as nitrogen source , as well as acetamide as the sole carbon and nitrogen sources .

该菌株以硝酸钠为氮源时能进行好氧反硝化作用；以乙酸钠和硫酸铵分别为碳源和氮源能进行异养硝化作用，能以乙酰胺为唯一碳源和氮源进行生长。

The results of culture experiment show that the volume of the gas produced by ammonification in the vagetated water is about 2 times as much as that in the unvegetated open water.

各种水生高等植物群落内氮循环细菌分布及微环境的差异，促进了有机氮的分解、铵态氮的硝化和挥发、硝酸盐氮的反硝化作用。

These were Pseudomonas stutzeri, Bacillus cereus and Acinetobacter junii, which were used to improve water quality.

受进水水质和低温天气的影响，反硝化细菌制剂的净化作用及反硝化作用不能充分发挥。

The active layer in MEEF composed of the granular material from plants, where earthworms act as declogger, decomposer and facilitating a nitrification-denitrification process within the biofilm.

蚯蚓在滤床中起分解和利用污水和污泥中的有机物和营养物质、清通滤床以及促进含氮物质的硝化与反硝化作用。

It was showed that temperature and quality of Inlet water would affect the activity of denitrification.

受进水水质和低温天气的影响，反硝化细菌制剂的净化作用及反硝化作用不能充分发挥。

Therefore, nitrification and denitrification has attracted more attention, whether from an agricultural point of view, or from an environmental point of view.

因此，无论是从农业的观点，还是从环境的角度看，硝化反硝化作用已引起人们越来越多的关注。

Most removal of chemical and microbiological constituents occurs in the top 2 m of the vadose zone, biological breakdown of organics, nitrification, and denitrification occur in the unsaturated zone and in the aquifer.

大部分的用化学和微生物去除发生在最上层两米的渗流区域。生物学的有机分解，硝化和反硝化作用则发生在未饱和区域和含水层。

The impact of denitrifying bacteria, soil diameter and soil-column height upon denitrification was investigated, and the enrichment of 15 in the effluent was presented.

动态试验考查了反硝化细菌、土壤粒径和土柱高度对反硝化作用的影响，并应用15N说明了出水中硝酸盐氮的富集作用。

An introduction is made on the application of an air supply low pressure jet aeration system in an improved oxidation ditch in the treatment of the liner board effluent with a detailed introduction and analysis on the commissioning of the operational process.

介绍了采用供气式低压射流曝气系统的改良型氧化沟用于箱纸板废水处理，并对整个调试运行过程进行了分析。改良型氧化沟采用全好氧曝气，沟中不存在缺氧区和厌氧区，抑制了传统氧化沟中的硝化与反硝化作用，降低了营养盐的投加成本，具有很强的抗冲击能力。

NH4 +-N in the wetlands to remove the hydrazine mainly by microorganisms, nitrification and demystification. Plants absorb and volatile, matrix adsorption, filtration, sedimentation and ammonia volatilization.

中文摘要： NH4+-N中N的去除主要是通过微生物的氨化、硝化与反硝化作用，植物的吸收和挥发作用，基质的吸附、过滤、沉淀和氨的挥发等。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。