COD的例句大全

The Ecological Succession of Climax Community Restricted by COD/ SO_4~ ( 2-) Ratio in Acidogenic Desulfate Bioreactor

产酸脱硫反应器中COD/SO4~（2-）比制约的群落生态演替规律

There is a plenty of organic matters in wastewater from tin electroplating process of cold rolling mill. The concentration of COD is high and pH is between 1.1-2.0.So it is difficult to treat directly by biochemical process.

冷轧厂电镀锡生产过程中产生的废水含有大量的有机物，COD浓度高，pH值在1.1-2.0之间，很难直接进行生化处理。

Automatic Measurement and Laser Trimming of Microwave Dielectric Resonator Detect COD_ ( Cr) in Waste Water with Microwave Digestion-AEP Titrimeter

微波介质谐振器自动检测与激光微调微波消解-自动电位滴定仪测定废水中化学需氧量

The COD value of water kept linear relation with the exhaust residence time.

水洗液的COD与进气时间有较好的线性关系；

Besides, the COD, total suger, total protein were decreased 58.12%, 27.36%, 56.54% respectively, after an array of methods such as PI sedimentation, heating, centrifugalization, active carbon adsorption and so on.

通过酸沉、加热、离心、活性炭吸附等方法降低了废水中各项污染物指标，处理后COD、总糖和总蛋白分别下降了58.12%、27.36%和56.54%。

Anaerobic aerobic ( A/ O) process can availably reduce COD and NH 4 H. Their average removability was reached more than 87% and 92%, separately, and its produced sludge is less.

缺氧-好氧（A/O）工艺能有效地降解COD和NH+4-N，COD平均去除率>87%，NH+4-N平均去除率>92%，且产泥量少。

Relations Between COD Removal and Biofilm Thickness and Density of Downflow Anaerobic Turbulent Bed

降流式厌氧紊动床COD去除与生物膜厚度及密度的关系研究

Fractionation of Soluble COD in Wastewater Based on Batch Respirometric Method

基于批式呼吸计量法的溶解性COD组分划分

However, it deplete 2,600,000 tons of coal and 40 billion kwh of electricity, emissions of 5,000 tons of COD, 3000 tons NH3-N at the same time.

同时也消耗260万吨煤和40亿度电，排放5000吨COD、3000吨NH3-N。

This method of evaluation of COD can be used in quality control of determination process.

提出了一种快速的氧化还原滴定法测定钢铁中钒的实用方法。

The removal of COD_ ( mn) and nitrogen in biofilm system was studied with pH controlled in 7.0~ 7.5 and temperature in 20 ℃~ 28 ℃ in the experiment.

实验采用人工配水，对生物膜系统中COD和氮的去除进行了研究。实验中pH控制在7.0～7.5左右，温度为20℃～28℃。

Compared with the conventional cultivation and introduction-cultivation, the biodegradation effects of COD, NH3-N and TP by the EM co-cultivation biofilm system are higher, and the time of stabilization and operation of the system is longer.

与常规培养生物膜系统和引种培养EM生物膜系统相比，共培养EM生物膜系统对生活污水中COD、NH3-N、TP的去除效果有较大改善，且系统的稳定运行时间大大延长。

An A/ O/ O biofilm process was studied for the treatment of Nylon-6 wastewater, and influence factors like nitrate recirculation ratio, HRT ( Hydraulic retention time), DO as well as the influent COD and TN were investigated.

试验采用A/O/O生物膜系统对锦纶废水进行处理，考察了硝化液回流比、水力停留时间、DO和进水COD及TN浓度对系统处理效果的影响。

During the dynamic simulation process, the average relative error of total COD, ammonia nitrogen, TN and TP was 12%, 27%, 16% and 11% respectively. The result indicated that the model could simulate the integrative biofilm system properly.

动态模拟过程中，总COD、氨氮、TN和TP的模拟平均相对误差分别为12%、27%、16%和11%，说明该机理模型对一体化生物膜系统能起到较好的模拟作用。

The removal rate of outflow COD would rise with the prolonging of reacting time of IAT tank;

出水COD去除率随着IAT池反应时间的延长而提高；

Ozonation is also relatively effective in the process. With the reacting time is 2 hours and concentration of ozone is 13.1g/ h, the final reduction of COD is 28.3%.

臭氧氧化对柠檬黄废水也有一定的处理效果，在臭氧浓度为13.1g/h，反应时间为2小时的情况下，废水COD的最终去除率为28.3%。

The results were as follows: 1. The reaction time, current density and initial pH had significant effect on the removal of COD.

研究结果如下：1.处理时间、电流密度、和原水pH值对COD去除有显著影响。

The product showed satisfactory results on removal of COD ( 92%) and decolourization of reactive brilliant red in water ( 98.8%).

反应后期pH基本不变；产品对活性大红溶液的净水处理结果较为满意，脱色率98.8%，COD的去除率为92%。

In this paper, according to the results of 22 water quality monitoring spots, the positive correlation of DO to COD, inorganic nitrogen and reactive phosphate has been found.

22个点位监测结果表明，大辽河口及辽东湾海域溶解氧与COD、无机氮、活性磷酸盐之间存在负相关关系；

The results showed that a cultures for 20 days to anaerobic system could improve COD removal rate and biogas production, effectively shorten reactor period.

实验结果表明：以发酵20天的发酵沼液作接种物可以加快反应速度，增加产气量，提高COD去除率；