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A hypothesis is presented in the second chapter of this discourse based on the theory of F/M, to improve the unit's capability of phosphorus removed by advisably increase the value of F/M, and this hypothesis is proved to be practically feasible by a model experiment.

本文第二章从对F/M的理论分析出发，提出了在原有一体化氧化沟参数水平上适当地提高污泥负荷来实现提高除磷能力，使出水COD、TN、TP等指标全面达标的设想，通过模型试验证明这样的设想使切实可行的。

The results indicate that, with HRT of 8?h and temperature of 35℃, the COD removal rate is beyond 80%, the removal rate of TN about 8%, the ammonification rate of organic nitrat.

试验表明：厌氧附着膜膨胀床反应器处理乳品废水，在水力停留时间为8h、中温35℃条件下，COD去处率达到80%以上，对总氮的去除约为8%，出水有机氮的氨化率达70%以上，ρ/ρ由进水的0 5提高到0 8以上。

In the process of ammonification, nitrification of organic N, H+ will be released, which causes the drop of pH value. There is significant negative relationship between TN and pH value.

有机氮在氨化、硝化过程中，会释放出H~+，引起环境pH值下降，两者有明显的负相关关系，在芦苇和茭草湿地的相关系数分别为-0.8181(n=27)和-0.6932(n=19)。

The characteristics of nitrogen fixation, ammonification , nitrification and denitrification in coastal zones;2. Study on ammonification rate and slow release performance of urea;3. The results indicate that, with HRT of 8?h and temperature of 35℃, the COD removal rate is beyond 80%, the removal rate of TN about 8%, the ammonification rate of organic nitrat.

试验表明：厌氧附着膜膨胀床反应器处理乳品废水，在水力停留时间为8h、中温35℃条件下，COD去处率达到80%以上，对总氮的去除约为8%，出水有机氮的氨化率达70%以上，ρ/ρ由进水的0 5提高到0 8以上。

In this dissertation, the following critical theoretical problems on local La-grangian numerical differentiation are studied: explicit formulas, local estimate for the remainder, and the highest order of approximation in the case that the values of the function at these interpolation nodes have perturbationsLagrangian numerical differentiation is a method that the Lagrange interpolation polynomialis differentiated to approximate the derivative, where Tn ={t_0,t_1,......

本文主要研究有关局部Lagrange数值微分法的一些关键性的理论问题：公式的显式表示，余项的渐近估计，以及在插值数据有扰动的情况下，局部Lagrange数值微分法的最大逼近阶。

The percentage of Cyanide, phenol, mercury and chromium which have little effect on water quality is small and the variation tendency is slow. The percentage of Ammoniac azote, TP, TN, Cd, potassium permanganate index and fluoride which have much effect on water quality is big and the variation tendency is great. The percentage of DO, BOD5, petrochemical compounds and lead lies in the mean place between two guidelines above, which plays a normal role in contributing to the water quality of Yuehai, but the variation tendency is obvious.

选取了15个参数作为评价因素，其中，氰化物、挥发酚、汞、六价铬等指标的权重较小，对水质变化的总体影响不大，并且年度变化趋势较平缓；氨氮、总磷、总氮、镉、高锰酸盐指数以及氟化物等指标在阅海湿地水质总体评价中所占比重较大，直接影响水道水质；DO、BOD5、石油类、铅等指标的权重介于上述指标的中间。

Soil total nitrogen content and soil available nitrogen content of farmland in Shuangcheng city were analyzed in the research based on 80s' soil nutriments data of the Scientific Database of Agroecology and Blackland in Northeast and 500 soil samples that were collected from the field in 0-20cm in 2005. The maps of soil TN and AN (1:50000) in the 80s were digitized and overlaid with the correspondent maps of 2005 using ArcMap.

本研究利用科学数据库多年来积累的历史图件和数据，并结合2005年耕层（0-20cm）500个采样数据为基础，选择典型黑土区双城市农田为研究区域，分析了22年来该县耕地土壤全氮和碱解氮的时空变化。

The two species of plants in eutrophication water can normally grow and develop. The removal rate of TN and TP of Canna indica and Cyperus alternifolius in eutrophication water was as high as 84% and 80%,77% and 72%, respectively.

结果］利用云南土著植物美人蕉和伞草在秋冬季节处理大清河污水具有良好的净化效果。2种植物在污水中均能正常生长发育。

The comparation of the treatment between the microcosms with plants and without plants was also considered.

结果表明：(1)植物生长过程中，植物高度能反映污水处理效果总体仁的变化；(2)在植物的生长过程中，各人工湿地系统污水处理能力总体上持续增强，各水质指标pH、DO、TN、NH3-N、NO3-N、TP和COD等均呈下降趋势，其中TP和COD呈逐步下降，pH、DO、TN、NH3-N、NO3-N则呈现锯齿形波动，但总体上仍是下降过程；(3)植物系统氮处理能力好于无植物沙滤系统，而对磷TP和COD的去除则恰好相反；(4)不同植物对人工湿地污水的处理效果影响不明显。

The content of major nutrient elements such as TN is 0.5455-0.7618 mg/L, which was lower than TN of main lakes in Heilongjiang Province, TP (0.4315-0.4950 mg/L) is normal.

水中COD含量为8.56~11.36mg/L；主要营养元素总氮为0.5455~0.7618mg/L，总磷为0.4315~0.4950mg/L，属于中富－富营养型湖泊。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。