硝化的

The invention is to carry out heterotrophic nitrifying phenomenon from the biology angle by screening heterotrophic nitrifying bacteria and the technology is the condition precedent to carry out short-range self-synchronous nitration and denitrification.

本发明的目的是采用筛选异养硝化菌的方法，从生物学角度实现异养硝化现象，该技术是实现短程同步硝化反硝化的先决条件。

The results showed that DO is one of the most important controlling parameters for realizing shortened simultaneous nitrification and denitrification.

试验结果表明，溶解氧浓度是实现短程同步硝化反硝化的一个重要控制参数。

The communities of Denitrifying bacteria, and some key enzymes of denitrification were also introduced.

从反硝化的角度出发，论述了反硝化细菌的类群、反硝化作用的机理、反硝化细菌细胞中参与反硝化过程的关键酶。

It is obvious that decreasing the temperature had more effect on nitrification than on denitrification in this short-cut system.

可见降低温度对于短程系统硝化反应的影响要大于反硝化的影响。

Moreover, the future application prospect and further study trend of aerobic denitrification were proposed.

并对亚硝酸型硝化反硝化的应用前景进行了展望，提出了其今后的研究方向。

Denitrifying phosphorus removal bacteria is a kind of bacteria that can release phosphorus under anaerobic condition and take up phosphorus under anoxic conditions while simultaneous denitrify nitrate or nitrite.

反硝化聚磷菌是一类能够在厌氧状态下释磷，缺氧存在硝酸盐NO3(上标-或亚硝酸盐NO2(上标-的情况下聚磷，并同时反硝化的聚磷菌。

To assess the thermal contribution from oxidation reaction, the standard formation enthalpes of all reactants and products were used to calculate the oxidation enthalpies. It could be found that all oxidation reactions were exothermic. And oxidation played a more important role during the toluene trinitration at high temperature, because the reaction temperature of toluene trinitration is the higher than mononitration and dinitration, and the temperature coefficient of oxidation is higher than that of trinitration too.

为了考察不同阶段氧化副反应对反应放热的贡献，用反应物和产物的标准生成焓推得氧化反应的理论反应热，计算结果表明，各段硝化的氧化副反应均为放热反应，其中三段硝化反应由于反应温度最高，氧化反应的温度系数比硝化反应高，故氧化副反应对三段硝化影响最大。

The article combines domestic and international research, mix from small environment theory, microbiology theory the generation mechanism that intermediate child theory just faces synchronous nitration to turn over nitrify undertook summing up, analysed synchronous nitration to turn over the implementation condition of nitrify and influencing factor.

文章结合国内外探究，从微环境理论、微生物学理论和中间产物理论方面对同步硝化反硝化的产生气理进行了综述，并分析了同步硝化反硝化的实现条件和影响因素。

When studying simultaneous nitrification and denitrification in membranebioreactor,it was foud that the concentration of DO was a key factor and the influence of C/N,pH value and temperature were unconspicuous.

在研究同步硝化反硝化作用时发现，C／N、pH值和温度对同步硝化反硝化作用无影响，DO是影响系统同步硝化反硝化的关键因素。

Results showed N_2O_5/CH_2Cl_2 was a relatively mild system, its nitrating ability of arene was weak, but the para-selectivity of product was satisfactory. Series of ZSM-5 catalysts could improve para-selectivity of product and meanwhile enhance the yield.

结果表明：N_2O_5／CH_2Cl_2是一个相对温和的硝化体系，对芳烃的硝化能力很弱，但产物的对位选择性很好；ZSM-5系列催化剂在显著提高对位产物比例的同时也能提高硝化的产率。

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。