查询词典 cod

Bentonite and lime was used to treat the wastewater from the acrylic fiber production respectively and then pH, COD, and Kjeldahl Nitrogen was measured.

分别用膨润土和石灰处理腈纶工厂废水，并测定了处理后废水的pH、COD、凯氏氮等相关指标的变化情况。

Preliminary experiment for organic waste water treatment illustrated that the COD removal efficiency for methanol,toluene and metanilic acid was 91.3%,89.28% and 84.53%,respectively.

在初步处理有机废水的实验中，甲醇、甲苯、间氨基苯磺酸COD的去除率分别达到91.3％、89.28%和84.53%。

In this article,preparation of Ag-based activated-Carbon ,comparing its absorption capacity of different concentration methylic orange and COD.

制备载银活性炭，比较载银活性炭对不同浓度甲基橙溶液和COD的吸附量，可以作为污水处理的吸附剂，用于城市污水的深度处理或是微污染水的二级处理等领域。

The results showed that all the four macrophytes had abilities to resist hydraulic impact loading, and were adapted to the dynamic instability of quality and quantity of inflow water. All the plants could decontaminate COD, NH3-N, NO3-N, TN and TP in the sewage with different efficiency, in which Oenanthe javanica and Myriophyllum verticillatum L. had the best comprehensive purification ability.

结果表明：4种植物都具有一定的抗水力冲击负荷能力，能适应河道污水水质和水量均不稳定的动态变化特征，并对污水中COD、NH3-N、NO3-N、TN和TP等指标均有去除作用；但各种植物对不同指标的去除能力有较大差异，其中浮水植物水芹菜和沉水植物狐尾藻综合净化效能较强。

The result shows:(1)Through the XDA Ⅱ macropore adsorptionresin treating, the nitrophenol adsorption rate, resin regeneration efficiency, nitrophenol recovery rate and COD removal rate reach 100%, 95 4%, 95 4%and 44 1%, respectively.

结果表明：（1）XDA—Ⅱ型大孔吸附树脂对废水中硝基苯酚的吸附率几近100％，树脂再生率和硝基苯酚回收率均达95.4％，吸附对COD的去除率达44.1％。

Nitrosification and denitrification in an artificial domestic wastewater with low COD were studied in a sequencing batch moving bed biofilm reactor.

在序批式移动床生物膜反应器内，对进水COD较低的条件下，模拟生活污水的亚硝化及脱氮性能进行了研究。

In the situation of varied water quality of influent, membrane permeate COD was all less than 20mg/L, NH〓-N was less than 1mg/L and turbidity was less than 1 NTU. Because the membrane surface formed gel layer in the filtration process, which reduced membrane pore size efficiently removed nosogenetic germ and virus and attained the demand of water quality standard in wastewater reuse.

在进水水质波动的情况下，膜出水COD值均小于20mg/L，NH〓-N小于1mg/L，浊度小于1NTU；由于在过滤过程中膜面形成了凝胶层，起到了减小膜孔径的作用，从而达到致病菌和病毒的有效去除，能够满足污水回用于杂用水时对水质的要求。

The Tuhai Rivers water is not suitable for water source for its serious pollution, four-grade water quality,overproof 80 times of COD.

近年来，徒骇河水污染已十分严重，据抽样化验，水质为四级，COD超标80倍，故不能将徒骇河水作为水源。

In the fifth chapter, COD of natural water samples were measured by the FI-CL method based on ozonation.

水样分析显示其COD监测结果的相对标准偏差小于10％。

Among the economic crops, pachyrhizus leaf had the most remarkable treating effect, the COD treating capacity per day per unit area was 4.01g, that is, a 50% treating rate; the BOD treating capacity was 1.15 g, that is, a 35% treating rate; the TP treating capacity was 0.23 g, that is, a 16% treating rate; the TN treating capacity was 1.87 g, that is, a 74% treating rate; however, the treating effect decreased as the total amount of pollution entering this system increased by raising the water volume, which was mainly owing to the relatively short hydraulic retention time.

由水质试验结果显示，本系统所选用的作物处理生活污水成效极佳，优於一般湿地选用的植物，以及河滩地原生草种型态，其中以地瓜叶的处理成效最为显著，每日单位面积COD去除速率为4.01 g 、处理效率达50﹪；BOD去除速率为1.15 g 、处理效率达35﹪；TP去除速率为0.23 g 、处理效率达16﹪；TN去除速率为1.87 g 、处理效率74﹪，而以加大水量的方式，增加进入本系统之污染总量，其处理成效减低，主要原因受到水力停留时间较短影响，未来可以增加处理面积、水力停留时间加长、提高原水浓度为后续之研究方向，以达到增加本系统处理成效之目的。

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。