硝化的

Effects of temperature,pH value, electron donor and electron acceptor on denitrification were studied.

研究了温度、pH值、电子供体种类及电子受体种类对反硝化的影响。

The experimental result of anaerobic ammoniation shows, the most appropriate hydraulic retention time is between six and eight hours, the longer the HRT , the higher the rate of NH3-N net increase.

现场调查分析表明，屠宰废水是一类富含有机氮的有机废水，其NH_3-N浓度在整个生物处理工艺过程中存在一定变化规律，特别在厌氧之后，NH3-N浓度将大幅增加(净增加70%—150%)，显然多数以进口NH_3-N指标进行硝化及反硝化的设计是错误的，且是导致NH_3-N难以达标的一个重要原因。

At the end of this paper, the factors which influence the shortcut denitrification was discussed.

本文最后还对影响短程反硝化的因素作了讨论。

Role of protein tyrosine nitration in neurodegenerative diseases and atherosclerosis.

神经退行性疾病和动脉粥样硬化中蛋白质酪氨酸硝化的作用

The results indicate that excellent nitration of NH,-N need the sufficient removal of COD to prevent the restrain of toxicant on the nitrobacteria.

指出NH_3-N完全硝化的前提是废水中COD的充分降解，以消除有毒物质对硝化菌的抑制作用。

The effect of reagents, reaction temperature, dinitrogen tetroxide and nitric acid on the yield and purity of 1,2-propanediol dinitrate were also investigated.

结果表明，N_2O_5和环氧丙烷硝化的主产物是1，2-丙二醇二硝酸酯，副产物是1，2-丙二醇单硝酸酯。

The mutative rule of pH is also studied in the reaction and the regular pattern is found.

短程硝化反硝化的标志是有稳定且高效的亚硝酸盐的积累。

In this paper, a research was made on the treatment of nitrophenol removal ammonia wastewater from a coke-plant by sequencing batch reactors.

试验表明SBR法处理焦化废水可以取得良好的脱氮效果。在低溶解氧下，氨氮及总氮的去除效率均较高。对氮平衡的分析证实了好氧条件下也可发生反硝化作用，初步探讨了好氧反硝化的机理。

The results indicate that ① the reactor with sulfur particle size of 2.8-5.6 mm can effectively remove nitrate from nitrified leachate up to a concentration of 400 mg/L NO - 3 N at a hydraulic retention time of 5.71h;② the minimum hydraulic retention time necessary for complete denitrification depends on sulfur particle size and influent nitrate concentration;③the maximum volume...

结果表明，当HRT为5.71h，硫磺粒径为2.8－5.6mm时，最高处理浓度（以NO－3－N计）达400mg／L。达到完全反硝化所需的最小停留时间取决于硫磺粒径及进水硝酸盐浓度。硫磺粒径为2.8－5.6mm，5.6－11.2mm，11.2－16mm时，NO－3－N最高容积负荷分别为594，278，175.4g／（m3d）。NO－3－N最大表面负荷约为0.68g／（m2d），是自养反硝化的控制因素，与硫磺粒径无关。

At higher concentrations hydrogen bondings formed due to the residual hydoxyl groups of nitrocelluloses lead to viscoities only a weak function of shear rates.

在较高浓度时，硝化纤维素分子链上未硝化的羟基所形成分子间的氢键作用，使黏度不因剪切率升高而急遽降低。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。