查询词典 waste water

This method was proposed for measurement of trace gold in waste water samples without preseparation.

该法用于含金废液中微量金的测定，不需予分离，测定结果与火焰原子吸收光谱法吻合。

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。

The Ca2+ salt solution as a new regenerant was presented in this paper. The influences of the calcium salt proportioning, temperature, dosage and flow rate on anion exchange fiber regeneration were studied. High regeneration can be obtained with 0.5 mol/L CaCl2+8 g/L CaO+6.5 °Bx sucrose solution at 70～80 ℃, the dosage of the Ca2+ salt solution was about half of the raw decoloring syrup, the regenerant flow rate should be lower than that of the raw decoloring syrup. It was shown that stable decolorization rate and lower decline in exchange capacity could be achieved with the new regenerant. It performed more effectively than the traditional sodium salt regenerant with less discharge of waste water.

选用二价钙离子蔗糖溶液为再生剂，再生蔗糖脱色后的强碱性阴离子交换纤维，研究了再生液的配比、再生温度、再生液用量、再生液流速等因素对再生效果的影响，结果表明配比为0.5 mol/L CaCl2+8 g/L CaO+6.5 °Bx蔗糖的再生液在70～80℃温度下，再生剂的用量约为脱色糖汁的一半，流速应低于脱色时的流速时，再生效果优于传统的钠盐再生剂的再生效果，重复再生后的纤维脱色率能保持稳定，交换容量下降少，且再生液能回收利用，废水排放量小，是一种环保型再生液。

The Ca(superscript 2+) salt solution as a new regenerant was presented in this paper. The influences of the calcium salt proportioning, temperature, dosage and flow rate on anion exchange fiber regeneration were studied. High regeneration can be obtained with 0.5mol/L CaCl2+8g/L CaO+6.5 °Bx sucrose solution at 70~80℃, the dosage of the Ca(superscript 2+) salt solution was about half of the raw decoloring syrup, the regenerant flow rate should be lower than that of the raw decoloring syrup. It was shown that stable decolorization rate and lower decline in exchange capacity could be achieved with the new regenerant. It performed more effectively than the traditional sodium salt regenerant with less discharge of waste water.

选用二价钙离子蔗糖溶液为再生剂，再生蔗糖脱色后的强碱性阴离子交换纤维，研究了再生液的配比、再生温度、再生液用量、再生液流速等因素对再生效果的影响，结果表明配比为0.5mol/L CaCl2+8g/L CaO+6.5 °Bx蔗糖的再生液在70~80℃温度下，再生剂的用量约为脱色糖汁的一半，流速应低于脱色时的流速时，再生效果优于传统的钠盐再生剂的再生效果，重复再生后的纤维脱色率能保持稳定，交换容量下降少，且再生液能回收利用，废水排放量小，是一种环保型再生液。

Using struvite sediment to remove the nitrogen in waste water has many advantages,such as high removal rate of nitrogen and reaction speed,small amount of sludge,reclaiming the ammonia nitrogen etc.

在废水处理中采用鸟粪石沉淀法脱氮，具有氨氮去除率高、反应速度快、污泥体积小的优点，同时可以回收氨氮。

After several repeated experiments on waste water sample, a three-stage neutralization treatment process was selected which used lime neutralization at first and then sulphurization.

葫芦岛有色金属集团有限公司冶炼烟气制酸中产生的酸性污水pH值在1以下，且含有大量的Zn、Cu、Pb、Cd、As、Hg等污染物，采用石灰中和加硫化处理的三级中和治理工艺。

The PVT emulsion as a kind of flocculants was applied to waste water treatment of paper mill, and the precipitation time and transmittancy were measured.

将 PVT乳液用于造纸废液的沉降处理，通过对沉降时间和透光度的测定可知，PVT乳液的用量为 0 。0 0 8%时，处理效果最好

Also may catalyze the synthesis trimethylene glycol, with this craft production trimethylene glycol, discharges without the waste water, simultaneously reduces about production cost each ton 5,000 Yuan.

其主要原因是硫、脱除。也可催化合成丙二醇，用本工艺生产丙二醇，无废水排放，同时降低生产成本每吨5000元左右。

In this paper, the preparations, analytical methods, physical characteristics of ferrates and the application of ferrates in the fields of synthesis of organic compounds, treatment of waste water and the usage as cathode material in alkaline batteries are summarized. The electrochemical preparation of sodium ferrate is described and the relationships between the main parameters in the process are deeply investigated. One method of in-situ electrosynthesizing potassium ferrate of high purity with both high efficiency and low energy consumption is invented. The cyclic voltammogram and feature characterization of iron anode in alkaline solutions is studied. One preparation method of ex-situ electrosynthesizing tripotassium sodium ferrate of high purity is created.

本文概述了高铁化合物的制备方法、分析方法、物理化学性质及其在氧化合成有机物、水处理和用作碱性电池正极材料等领域的应用；深入系统地研究了高铁酸钠的电化学制备及其影响参数之间的关系；研发了一种高效率低能耗直接电合成高纯度高铁酸钾的工艺方法；探讨了铁电极在浓的苛性碱溶液中的循环伏安特征及其极化特征；研发了一种电化学制备高铁酸三钾钠的工艺方法并用多种现代分析测试技术对K_3Na(FeO_4，)_2进行了表征。

Our King gave an advice that we treat this waste water using Typha angustypholia, an easy to find local plant, as a filter.

我们的国王建议我们使用一种名为Typha angustypholia的当地常见植物作为过滤器来处理废水。

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。