脱氮的

The applications of environmental protection catalyzer in desulfuration, denitrogen and cleanse motor vehicle have been emphatically introduced.

重点介绍了环保催化剂在脱硫、脱氮及净化汽车尾气方面的应用情况。

The deep denitrogenation experiments of 125 heats were carried out to reduce the nitrogen content below 15×10^(-6) during decarbonization process.

为了同时把有害元素ωN）降至15×10^(-6以下，进行了125炉次的深脱氮工艺试验。

Diurnal dissolved oxygen concentration changed due to photosynthesis of plants fixed in floating islands to improve denitration from river water.

浮床植物光合作用使得池水中溶解氧含量呈现昼夜交替变化，为脱氮提供了良好的环境条件。

The denitrification and dephosphorization can be well achieved without adding the agents.

不需加药可达到较好的脱氮除磷效果。

Better denitrification efficiency could be obtained with adding amylo and the removal ratios of ammonia nitrogen were at least 93%. The removal ratio of TN increased gradually with the increasing of C/N ratio. When C/N ratio was 10, the best removal ratio of TN could reach 80.81%. But when C/N ratio added on 12, the ratio removal of TN was not increased only keeping about 75%.

投加淀粉调整C/N比，系统能取得良好的脱氮效果，氨氮的去除率均在93%以上，随着C/N比的增加，TN的去除率也逐渐的增大，当C/N为10时，TN最高去除率能达到80.81%，但当C/N增大到12时，TN的去除率不再增大，只是稳定在75%左右。

As the results show: The two submerged macrophytes can also adapt to the polluted water. Under the condition of high nitrogen in the sediment, they can remove the nitrogen effectively, and the removal effect of Ceratophyllum demersum L.is better than Hydrilla verticillata Royle. Hydrilla verticillata Royle activates the TP in the sediment more effectively than Ceratophyllum demersum L.. The submerged macrophytes can intensify the removal effect of turbidity. But the CODMn removal effect of submerged macrophytes are not obvious.

结果表明：生长晚期的黑藻和金鱼藻仍可适应污染河水；在底泥含氮量较高的情况下，生长晚期的沉水植物对氮素具有明显的去除效果，且金鱼藻的脱氮能力高于黑藻；黑藻对底泥中TP的活化能力高于金鱼藻；沉水植物可以强化浊度的净化效果；沉水植物生长晚期对CODMn的去除效果不高。

Azoreductase in E.coli.JM-109 can damage -N=N- to decolorize azo dye. Decolonization conditions,such as dye categories,temperature,pH,salinity,oxygen were studied in this article.E.coli.

由于E。 coli JM-109含有的偶氮还原酶能破坏偶氮染料的-N=N-使其脱色，因此本文考察了其脱色的条件（温度，pH，盐度，供氧量）及其适用范围。

But the effluent ammonium in the anoxic reactor, where enough NO2 present were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO-2 and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria.

但在足够NO2存在并且缺氧的条件下，单级自养脱氮系统内的出水氨氮浓度与空白反应器相当，NH+4并没有被亚硝化单胞菌以NO2为电子受体氧化为NO-2和N2等化合物而得以去除，可能是因为系统内不存在该类型的亚硝化功能菌。

The use of the phosphorus uptake and denltrification of PAOs under anoxic conditions for the realization of the simultaneous removal of nltrogen and phosphorus is a method with practical prospect for munic－ipal sewage treatment,and the establishment of the mathematical models of denitrlfication and dephosphorization by activated-sludge process benefits the popularization and application of this technofogy.

利用聚磷菌在缺氧条件下的吸磷和反硝化作用，实现氮、磷的同时去除，是具有实用前景的城市污水处理方法，而建立活性污泥法脱氮、除磷的数学模型则有利于该项技术的推广应用。

So far research on antibiotic production wastewater treatment has mainly focused on the removals of organic pollutant and sulphate and hydrogen sulfide produced during sulphate removal with anaerobic process.

迄今为止，虽然对抗生素废水处理技术的研究很多，但基本上是针对有机物和硫酸盐以及硫酸盐在厌氧过程中产生的高浓度硫化氢去除的研究，而对脱氮除磷、脱色以及剩余污泥处理的研究，尤其是综合治理技术的最优化和工程实际应用的研究很少。

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。