查询词典 cod line

However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

Flocculation+0.45μm filter is selected as the pretreatment of the method proposed here.(9) A set of standard methods for ASMs COD characterization is suggested in the thesis and it advantages are:①Respirometry is adopted to measure RBCOD and SBCOD;②SI is determined from raw wastewater and so there is no influence of inert products;③Heterotrophic biomass in wastewater is measured;④The key instrument used in the standard methods-hybrid respirometer, has high automatic level and friendly user interface which simplifies the respirometry. So the suggested standard methods are practical.(10) According to the suggested standard methods, the influent COD of a wastewater treatment plant in Chongqing, China, is characterized.

9提出一套表征城市污水COD组分的标准化方法建议，其特点在于：①以呼吸测量作为RBCOD和SBCOD的测量方法，与以往以物理化学方法为主的做法有着本质区别；②对原水直接进行分析测试来获得SI组分，不受溶解性惰性产物的干扰；③考虑了污水中活性异养微生物组分的单独测量；④所依赖的核心仪器-呼吸测量仪具有很高的自动化程度和简单友好的用户界面，使原本复杂的呼吸测量实验及其结果的分析统计简单化，所建议的标准化方法具有很好的实用性。

The sapogenin wastewater was treated by adopting the technology of Pretreatment + aerobic digestion + coagulating sedimentation and oxidation decolor. The results showed that the COD fell from 12000mg/L to 600 and the chromaticity from 110mg/L to 50.COD removal rate could reached 99%.

该工程利用预处理+厌氧+好氧+混凝、脱色组合工艺处理黄姜废水，在进水COD和色度分别达12000mg/L和600倍的情况下，出水COD和色度分别为110mg/L和50倍，COD去除率达99%。

The cod brandade made its entry in the "nmoise" gastronomy only in the 18th century when cookers transformed the cod into a mash and grinded it with milk, olive oil and scrubland herbs.

尼姆厨师把鳕鱼剁成泥，捣碎与牛奶、橄榄油和一些南部石灰质荒地上生长的蔬菜相混合，经过精心烹调，尼姆奶油烙鳕鱼这道色香味俱全佳肴就呈现在我们面前。

It is pointed out that under the condition of the temperature of 1120℃, the reaction time of 16 mm and the carbon content of 27%, the metal transformation rate of sponge iron used for general metallurgy is up to 90%. But the optimal carbon content is 29% for iron sponge to treat DSD acid oxidation wastewater. Under condition of the wastewater's pH value of 3 to 5 and the reaction time of 40min, the removal rates of COD and color are 68% and 90%, respectively. The BOD/COD ratio is up to 0.425 when DSD oxidation acid water is treated with sponge iron.

研究表明：在配碳量27%、反应温度1160℃、反应时间16min的情况下，以铁泥为原料制备的常规海绵铁的金属化率可达90%以上；用于处理DSD酸氧化废水的海绵铁适宜配碳量为29%，用制备出的海绵铁处理DSD酸氧化废水，在pH值3~5、反应时间40min时，出水的COD去除率可达68%、色度的去除率达90%、可生化性指标BOD/COD提高到0.425。

By practical tests, this paper reported the form design, sinker weight and making method of the truncated cone cod-end under current velocity of 0.45~0.75 m.s-1, and provided reference for cod-end making of deep-water net cage at strong current.

通过实物试验，报道了圆台形囊网在流速0.45~0.75 m.s-1时的外形设计、配重及制作方法，为强流下的深水网箱囊网制作提供参考。

LWhen the unacclimated UASB reactor, acclimated UASB reactor and anerobic filter were shockcdy by the combined load, the largest increase of the effluent COD under combined load shocking was higher than that of the sum of chloroform (or 2,4-dinitrophenol, noted DNP) and COD load shocking independently.

2多负荷冲击(COD+CF+DNP+ALK)按照正交试验来设计，反应器UASB-RⅠ在多负荷冲击时，影响出水VFA的因素的主次顺序为CF＞COD＞DNP＞ALK；影响出水DNP的因素的主次顺序依次为DNP＞CF＞COD＞ALK；影响VGP和％CH_4的因素的主次顺序分别为CF＞DNP＞COD＞ALK、CF＞DNP＞COD＞ALK。

Cod ( Gadus morhua L.) PRELIMINARY STUDY OF DIET OF PACIFIC COD, Gadus macroce Phalus Tilesius

的两个地理种群：苏格兰西海岸和波罗的海鲱、大西洋鳕 Gadus morhua L。

Norway sea water is cold and clean and rich of halobios. Norway cod lives in deep ocean in the Arctic Circle. The Norway cod nutrition is better for the excellent natural environment.

挪威海水温度低，海洋生物丰富，无污染，鳕鱼生长在北极圈深海中，得天独厚的自然环境使这种鱼的营养价值高出一筹。

The results show that after adding RBW 0.5-2.5% bentonite, the highest removal of COD and Kjeldahl Nitrogen was 32% and 24%; after adding RWB 1~5% lime, the highest removal of COD and Kjeldahl Nitrogen was 34% and 40%.

结果表明按土水比添加0.5%~2.5%的膨润土处理后，废水中的COD和凯氏氮的最高去除率分别为32%和24%；添加1%~5%的生石灰处理后，废水中的COD和凯氏氮的最高去除率分别为34%和40%。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。