查询词典 cod

The COD,ammonia nitrogen and turbidity of secondary effluent can be farther removed by aerated filter and the reclaimed water qualities are improved.

好气滤池同时具有普通滤池和曝气生物滤池的优点，能对二级出水中的COD、氨氮和浊度等指标进一步去除，提高再生水水质。

Anaerobic biological deodorization system was able to work steadily even when COD concentration of influents reached 10000mg/L, olfactometry measurement was fitted 5-grade standard and volumetric loading rates were 10.58Kg. COD/; In the two combined UASB systems, Hydraulic Retention Time of the first UASB was 28h, olfactometry measurement of effluents was fitted 3-grade standard; and when HRT of the second UASB was 67h, olfactometry measurement was below 2-grade.

COD〓，厌氧反应器可稳定运行，并具有优良的除臭性能；对两级串联的UASB系统，一级水力停留时间为28h时，出水臭气强度可达3级；二级水力停留时间为67h时，二级出水臭气强度可在2级以下。

Combined with polysilicate aluminum and ferric, this coagulant was thus used to treat tanning wastewater which COD value is ...

这种混凝剂与聚硅酸铝铁絮凝剂配合处理COD为 15 0 0～ 2 0 0 0mg/L制革废水，SS ，COD ，硫化物和铬的去除率分别为 95 %，93 %，92 %和 88%。

After 3 hours rection time, the removal of COD and NH3-N are up to 95% and to 70%;(3) A polot (0.25t/h) study of municipal waste water treatment by photocatalysis-ozonation was done in Wuhan municipal wastewater treatment plant.

结果表明，在反应3hr后，废水中COD去除率达到95%，氨氮去除率达到70%；(3)在武汉水质净化厂完成了UV/ TiO_2/O_3法处理城市污水中试研究(0.25t/h)，在停留时间为2hr时，COD出水低于30mg/L，此时吨水处理成本为2.56元。

When the concentration of Mg~(2+) is 20mg/L, comparing to parallel reactor the ratio of the COD removement of dosing

大于或低于2mg／L时，加药反应器COD去除率相对于对照桶COD去除率的提高都小于5.35个百分点。

When the concentration of Mn~(2+) is 0.5mg/L, compared with parallel reactor the ratio of the COD removement of dosing reactor is improved about 4.3 percent.

大于或低于20mg／L时，加药反应器COD去除率相对于对照桶COD去除率的提高都小于5.07个百分点。

We researched migration and transformation of COD in vadose zone , and put forward a mathematical model of the process.

采集一定浓度的有机物废水，在试验室内进行了静态吸附、静态降解和动态土柱试验，对COD在包气带中迁移转化规律进行研究，提出了描述COD在包气带中迁移转化规律的数学模型。

Experiments showed that according to substantial equilibrium, we can get a small range of COD by studying the changing disciplinarian, and it can be used to rational judgment end-point of flax ratting.

实验研究表明，根据物量平衡原理，研究脱胶过程中COD位随时间的变化规律，得出脱胶终点时的COD值范围，可以作为一种定量判断脱胶终点的方法。

The research object was methylthionine chloride watery solution with the COD value of 2000 mg/L,and it was disposed by non-homogeneous phase CWAO technology.

COD为2000 mg/L的亚甲蓝水溶液作为研究对象，用非均相催化湿式氧化技术进行处理，催化剂性能以COD去除率、脱色率以及稳定性来评价。

The coordinated COD of 3 and 4 can be replaced by carbon monoxide to yield the corresponding dicarbonyl species [(C,N-pyN^C-R) M2]BF4 (14, M= Rh; 15, M= Ir). Ligand substitution of 11a by phosphines and azide causes the de-complexation of pyridinyl-nitrogen donor to generate the corresponding carbene rhodium complexes [(C-pyN^C-Mes)RhPR3] (17a, R = Ph, 17b, R = Et) and [RhN3] (19), respectively, indicating the labile nature of steric-hindered pyridinyl-nitrogen donor.

螯合错合物的吡啶配位，可以容易被σ-予体，如卤离子、叠氮阴离子、膦试剂，置换；但是铑与铱金属螫合物与π-酸试剂，如一氧化碳、异腈，则发生COD被置的产物14a与16；与三甲基亚磷酸酯反应时，COD及吡啶均会被取代而得到单芽的三铑-碳烯错合物18；双膦化合物则会取代铑金属上全部的配位基。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。