亚硝化

The nitrogen ammonia nitrite and nitrate degradation rate of stable operation autotrophic denitrifying process are about 15～33%、65～90% and 50%.

稳定运行的自养反亚硝化系统的NH〓-N降解率在15～33%、NO〓-N降解率在65～90%、NO〓-N降解率大多处于50%左右。

Result］ The annual mean value of azotobacter,ammonifiers and nitrobacteria in the river water were 140,1 179 and 691 CFU/ml resp.,the yearly average of nitrosation and denitrifying bacteria were 647 and 369 MPN/ml.

结果］ 水体中固氮菌、氨化细菌、硝化细菌年平均数分别为140、1 179和691 CFU/ml，亚硝化和反硝化细菌年平均数分别为647和369 MPN/ml。

Compared with the traditional method of nitrosation of butanone, this method has many advantages, such as simple operation, high yield, and low environmental pollution due to recycling of oxidant.

该方法与传统的丁酮亚硝化法相比，具有操作简单、产率高的优点，而且氧化剂可再生循环使用，对环境的污染小。

It was synthesized on the basis of carbazole by two steps reaction of nitrosation and reduction.

以咔唑为起始原料，经亚硝化和还原两步反应合成N-氨基咔唑。

High concentration nitric wastewater can realize stable nitrous nitrification by ANIS process (continually influence、intermittently decantation), the influence and decant volume of the reactor is only half of its volume.

4高浓度氨氮废水实现稳定亚硝化宜采用ANIS反应工艺，反应器每周期进、出水量仅为其反应容积的一半。

The nitrosation of cyclohexanecarboxylic acid with nitrosyl sulfuric acid is an important industrial process to produce ε-caprolactam.

由环己烷羧酸与亚硝基硫酸的亚硝化反应制取己内酰胺是一个重要的工业反应过程。

In addition, under the above-selected nitrosification condition, the immobilized cells N4 and B08 were used for the combined short-cut biodenitriflcation with the ratio of immobilized cells 1:1 and the seed volume 15%, 27h the denitrogenation efficiency reached 97.53%; the immobilized cells N4 and B08 were used to do denitrogenation application test on eutrophic lake water of our school, 12h the NH4+-N removal rate was 84.06%.

在以上所选亚硝化条件下，按1：1的比例，亚硝化细菌N_4和反硝化细菌B_(08)固定化细胞接种量为15％，广西大学硕士学位论文固定化微生物捷径生物脱氮的研究作联合捷径脱氮试验，27h脱氮率为97.53%；并作本校富营养化湖水的脱氮应用试验，处理12h，NH4十一N去除率为84.06%。

The most probable number measurement showed that the overwhelming quantity of nitrosobacteria immobilized on biofilm was the main reason for stable and high nitrite accumulation in the reactor.

最大可能计数法测定发现，亚硝化菌在数量上的绝对优势是反应器能始终保持高效稳定的亚硝氮积累的主要原因。

An ammonia-oxidizing bacterial strain A5 was isolated from the activated sludge of A/O process,and identified as Nitrosomonas sp.

从厌氧好氧工艺的废水处理系统活性污泥中分离出亚硝化细菌A5 ，鉴定为亚硝化单胞菌 Nitrosomonassp。

One was that one molecule of nitrous acid di-rectly reacted with DMA,and the other was that two molecules of nitrous acid reacted first to yield nitrogen trioxide,which then reacted with DMA.

计算结果表明，DMA与亚硝酸间接反应的活化能比直接反应的低约55kJ/mol，由此可推断DMA与亚硝酸生成NDMA的反应是以两分子的亚硝酸先生成ONNO2再亚硝化DMA为主要反应途径。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。