查询词典 nitrification

When other factors are finable, 15L/h is the suitable amount of aeration.By analysis, the excessive aeration amount will destroy the capacity of sludge, and so decrease the removal efficiency of CODCr,and the 15L/h aeration amount is enouge for the demand of nitrification.

4蛭石应用于一级生物强化处理中，蛭石填料对有机物去除没有明显效果，但可以增加系统对氨氮去除能力，与对照组相比，高出30％多；吸附饱和后的蛭石，在活性污泥再生过程中，通过活性污泥的降解有机物，可去除较大部分的氨氮。

When heterotrophic bacteria were washed out while autotrophic bacteria were accumulated, the sludge mainly was bacilliform floccule, but the sludge was petallike when the steady nitrification was set up and part nitrogen removal function was reached. The lack of organic carbon source made autotrophic bacterium become the dominates and the microbial community structures become simple.

经过成功启动并稳定运行后，单级自养脱氮系统内随着反应器内有机碳源的减少，系统中自养细菌在同异养细菌的竞争中逐渐占据优势地位，适应能力较弱或对有机碳源量要求较高的异养细菌则被大量淘汰，微生物群落结构与接种污泥相比已变得简单且较稳定，种群多样性降低。

Therefore, more and more attentions are paid to heterotrophic nitrification bacteria for wastewater treatment.

因此， 这类细菌已成为废水处理中生物脱氮新工艺的重要研究对象。

A kind of bacteria with capability of heterotrophic nitrification-aerobic denitrification have been reported in recent years.

近年来发现了一类具有偶联异养硝化-好氧反硝化功能的细菌。

Results suggest that bacteria present in the system are able to nitrify via a heterotrophic pathway which is named heterotrophic nitrification.

试验结果表明：影响系统SND的主要因素是进水COD/TKN和反应器中控制的混合液DO浓度。

Fertilizer Entec26 contained DMPP (new type of nitrification inhibiter) could also decrease soil nitrate leaching.

证明在高灌水量条件下，尿素+玉米秸杆处理，使土壤矿质氮固定和微生物氮增加，降低了土壤硝态氮的下层累积和向下淋洗；施用含新型硝化抑制剂DMPP的肥料Entec26也能降低土壤硝态氮的向下淋洗。

Soil net N nitrification would increase with the increase of the %FNDA of Lespedeza bicolor. Lespedeza bicolor could fix a large amount of N〓, but was also likely to increase the N leaching loss.

胡枝子固氮作用越强，土壤有机氮的净硝化量就越大，胡枝子在从大气中获取大量〓的同时，很可能会增加氮素的淋溶损失量。

A problem related to nitrification is a drop in PH for the system due to the formation of nitric acid.

和硝化作用有关的一个问题就是由于生成硝酸而使系统内的PH值降低。

On the basis of this, the fuzzy controller of nitrification in SBR was constructed.

在此基础上，建立了SBR法硝化时间的模糊控制规则。

In this study, we studied the toxic effect of nitrification substrates and products on photobacterium.

对硝化基质和产物对硝化过程的影响进行初步研究。

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。