污染物

The emission of air pollutants from fossil fuel combustion is the major cause of urban air pollution.

石化燃料燃烧所产生的空气污染物的排放是主要都市空气污染的原因。

Therefore, it is very important to analyze and pretreat the fouling substances properly in time.

因此，对进料水中的各种污染物进行分析测定和及时处理就显得尤为重要。

Through theoretic analysis and numeric calculation, it studies kinetic characteristics and pollutant transform laws of the 2nd Songhua River Water; emphasizes parametric recognition for Frechet derivative regularization based on Dobbins-Camp BOD-DO coupled model in water quality simulation and how to make estimation.

通过理论分析和数值计算，研究二松江江水运动特性和污染物转化规律；重点研究了水质模拟中基于Dobbins BOD-DO耦合模型的Frechet导数正则化参数识别法进行估计，确定目标函数后，通过优选技术确定水质参数。

The ill posed problem can be converted into the first Fredholm integral equation; and an algorithm of inversion is given using the Tikhonov's regularization method.

为了达到净化环境的目的，研究污染物在水体中的扩散现象，进而加以控制，已成为其中重要内容之一。

The transform of heavy metal with the change of temperature utilizing the software-FactSage was simulated; the power of free electron was calculated and the mechanism of organic pollutants decomposition by pulse discharge was analyzed.

本文还利用FACTsage软件对重金属的迁移进行了模拟，研究了不同重金属的存在状态随温度变化的改变情况；计算了脉冲放电产生的高能电子的能量，对脉冲放电降解有机污染物进行了机理分析。

Methods: Frequentness analysis of the pesticide component has been done by combination of pesticides investigated in the market with detected in vegetable and fruits.

随机调查市场供给的农药品种，结合食品污染物调查，对相应的农药品种进行频度分析。

The tests have Simulated the rainstorm state and the order state, and the results indicated the disposal of microorganisms-aquatic plant system is efficient. The optimization removal rate time was ascertained under the static state test, in dynamic test, comparing and analyzing the effect on removal rates of different concentration wastewater. The results showed, without aeration, the removal rate of CODCr, TN was 85.9%,75.1%, respectively, the highest removal rate of TP was 64.6%, and the concentration of DO increased steadily from 2mg/L to 7mg/L during experiment. In dynamic test, the microorganisms-aquatic plant systems have also appeared better effect on freshet, and the removal rate of TN,TP and CODCr, was 64%,69% and 81%, respectively.

利用接种高效微生物菌剂促进填料快速挂膜，并和水生植物联合作用去除水体中的氮磷等污染物，在静态水体下研究达到最佳去除效率的时间，并在连续流试验下对比分析不同浓度下的去除效率，根据静态模拟试验结果表明，在不曝气，自然复氧条件下，CODCr和TN的最终去除率分别为84.3%和71.4%，TP最高去除率为62.9%，DO也从2mg/L稳定的升高到7mg/L左右；在连续流模拟试验结果表明，该系统对雨后入湖的河水中TN、TP及CODcr的去除率分别稳定在近64%，69%和81％以上。

The adsorptivity of molecular structure of the polymers (substitution degrees and crosslinking densitiese) on basic fuchsine and phenol were investigated.

研究了聚合β-环糊精衍生物分子结构对其吸附有机污染物碱性品红和苯酚(来源：A29BC论文网www.abclunwen.com)的吸附量QA的影响。

Dynamic experiments of domestic sewage treated by electrocoagulation process with triangle-wave power, sine wave power and full-wave rectifier power, which had the different power waveform and waveform frequency, were studied. And the removal characteristics of organic pollutants were studied.

采用三角形波电源、正弦波电源、全波整流电源进行动态实验，研究采用不同电源波形和波形频率电源的电凝聚对处理生活污水的影响，以及对有机污染物的去除特性。

The presence of fast-growing contaminants, such as Fusarium and Penicillium, may necessitate the use of species-selective baits.

生长迅速的污染物的存在，如 Fusarium 和青霉菌，可以使用必要的选择性物种为诱饵。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。