出水

But the effluent ammonium in the anoxic reactor, where enough NO2 present were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO-2 and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria.

但在足够NO2存在并且缺氧的条件下，单级自养脱氮系统内的出水氨氮浓度与空白反应器相当，NH+4并没有被亚硝化单胞菌以NO2为电子受体氧化为NO-2和N2等化合物而得以去除，可能是因为系统内不存在该类型的亚硝化功能菌。

But the effluent ammonium in the anoxic reactor, where enough NO2 were present, was equal to the blank system, and no ammonium was converted to such nitrogen compounds as NO2- and N2 by Nitrosomonas eutropha using NO2 as electron acceptor, which maybe caused by lack of the function bacteria. There were two ANAMMOX reaction pathways in the one-stage autotrophic nitrogen removal system. One way was that after part of NH4+ was oxidized to NH2OH under aerobic conditions, NH2OH and NO2- were converted to N2O under anaerobic conditions, at last N2O was further converted to N2 which realized the nitrogen removal; Another way was that at first NO2- was reduced to NH2OH, NH2OH reacted with NH4+ to form N2H4, which was further converted to N2 subsequently, realizing the nitrogen removal.

结果表明：单级自养脱氮系统内6.72%的氨氮是通过吹脱等物化作用去除的，不超过6.02%的氨氮是通过传统硝化反硝化途径去除的，87.26%左右的氨氮是由自养脱氮途径去除的，自养脱氮反应起主要脱氮作用；在足够NO2存在且缺氧的条件下，单级自养脱氮系统内的出水氨氮浓度与空白反应器相当，NH4+并没有被亚硝化单胞菌以NO2为电子受体氧化为NO2-和N2等化合物而得以去除，可能是因为系统内不存在该代谢功能的亚硝化功能菌；单级自养脱氮系统内存在两条ANAMMOX反应途径：其中一条途径即NH4+在好氧条件下被氧化为NH2OH后，生成的NH2OH与系统内的NO2-在缺氧条件下被转化为N2O，N2O则进一步被转化为N2而实现氮的去除；另外一条途径即NO2-首先被还原为NH2OH，生成的NH2OH则与系统内的NH4+反应生成N2H4，N2H4继续被转化为N2而实现氮的去除。

The results show that, the proper feeding order and feeding amount are that: aluminium polychloride 19.2 mg/L+PAM 0.075 mg/L, the COD is 98.2 mg/L, it meets secondary discharge standard.

结果表明，最合适混凝剂投加顺序及投加量为：聚合氯化铝19.2 mg/L+PAM 0.075 mg/L。出水COD 98.2mg/L，达到二级处理排放要求。

Aquatic plants were soaked in two purifying-tanks to investigate the effects of illumination intensity and aeration on diurnal variations of Chla,SP,POD of Pontederia cordata and pH,DO,COD,NH+4-N,TP of water from purifying-tanks when treating the malodorous river water at seven different times,another blank purifying-tank was set as a control. Comparative studies and correlation analysis of these different indicators were carried out to improve the plants working efficiency and provide scientific basis for optimal operation of plant purifying-tanks.

测定了曝气和非曝气的2个植物净化槽在1 d中7个不同时间点的出水水质理化指标(pH、DO、COD、NH+4-N、TP)及植物叶片的叶绿素、可溶性蛋白含量及过氧化物酶活性，另设空白槽为对照；试验目的是研究各指标的日变化情况及相互关系，为提高梭鱼草净化黑臭河水的处理效率及其植物净化槽的合理优化运行提供科学依据。

Parts of areas, oil-field produced water quantity is much larger than it is need to reinject, so much so that oil-field produced waste water needs to be disposed before draining.

而陕北地区油田多为高矿化度油田，其采出水含盐量高，采用经济可靠的生物处理技术进行处理，对保护当地生态环境具有重要的意义。

Through the parallel experimentation, it is indicating:(1)It can improve the ratio of COD removement to some extent when the MnCl_2·4H_2O was put in the sewage.

适当的添加镁离子能够促进活性污泥的活性，改善出水水质。在镁离子的投加量为20mg／L，加药反应器相对于对照桶COD去除率有5.07个百分点的提高。

Minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves.

微小的不移栖的海洋无脊椎动物，它们的身体呈囊状并带有可吸进和吐出水的''。

Minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves.

微小的不移栖的海洋无脊椎动物，它们的身体呈囊状并带有可吸进和吐出水的虹吸管。

The results of the tests in this paper show ANAMMOX process has practical engineering value. The ANAMMOX process could be established through recycle of the effluent from the sedimental tank to the anaerobic fluidized bed, and the TN removal efficiency of A〓/O could be enhanced by 15%.

本论文的实验表明厌氧氨氧化过程具有实际工程意义，利用好氧沉淀池出水回流到厌氧池，可以实现厌氧氨氧化过程，系统的总氮去除率可提高15％。

The precipitation of struvite could increase the ratio of C/N to about 20,which will enhance the sequent biological process and ameliorate the quality of effluent.

鸟粪石沉淀法能够将C/N提高到20左右，强化了后续生化处理工艺的出水水质。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。