查询词典 ammonia-soda process

The test also reveals that the removal of CODCr could not keep in pace with that of ammonia in the process of film formation , while the increasing rate of the aerobic heterotrophic bacteria is higher than that of the autotrophic nitrobacteria in the process of biological film growth.

试验还显示，挂膜过程中，CODCr 和氨氮的去除率的提高不是同步的，生物膜增长过程中，好氧异养菌的增殖速度较快，硝化菌的增殖速度较慢。

By installing cooling tower in the methanol synthesis section, changing the ammonia absorption plant from once into twice, and changing the flow path of cooling water in carbonizer, the new process overcame disadvantages existing in the former process.

新工艺通过在甲醇合成工段安装冷却塔、将一次吸氨装置改成二次吸氨装置、改变碳化塔冷却水流程等措施，克服了原工艺流程存在的缺点，并且生产1 t氨的煤耗降低252 kg，电耗降低182 kW·h，成本降低180元。

According to the test result,the process of synthesis of cryolite from sodium fluorosilicate by ammonia method and the optimum process parameters are introduced in detail.

根据试验研究结果，详细介绍了氟硅酸钠氨法脱硅、氨化液化学合成制取冰晶石的工艺流程和优惠工艺技术参数，以及在制取过程中应着重注意控制的工艺条件，有效地解决了在以往生产中产品除硅、硫杂质难及产品灼烧失量大等问题。

Furthermore, this paper explored a new feasible process of cyanide recovery,investigated the effect of time, concentration of H2SO4 and temperature on the elution of cyanide and zinc in the process of first stage elution, and discussed the effect of time,concentration of ammonia water, temperature and ultrasonic on the elution of copper in the second stage elution.

另外，本实验探索出一种可行的回收氰化物新工艺，在硫酸解吸过程中，研究了硫酸解吸的时间、浓度和温度因素对氰和锌的解吸率的影响；在氨水解吸实验中探讨了时间、温度、浓度、超声波等因素对铜解吸率的影响。

In this thesis, the author importantly clarified the process engineering of natural gas which used in the development of Sulige gas field, the process engineering is ammonia refrigeration and low temperature separation, dehydration and dealkylation , and analyzed the operation effect of the processing.

本文重点对苏里格气田开发过程中采用的氨制冷低温分离脱水脱烃天然气处理工艺的应运情况进行了阐述，运行效果进行了分析，为苏里格气田的大规模开发提供技术依据。

In range of 300℃～900℃, all the transition metal oxide catalysts could get high ammonia conversion, during the initial stages of the reaction, the SO〓 conversion is relatively low since the catalysts have not been sulfureted, but it increases gradually and attain constant with rising temperature and time continuance,〓 is better than other catalysts in reactivity and elemental sulfur selectivity; XRD indicates that, in the SO〓-SCR process, stable transition metal sulfide is generated which is very important to SO〓 reduction and transition metal sulfide probably is the active phase of catalyst, further the reduction of SO〓 by H〓 to H〓S is the limiting step of all process, then the activity is somewhat related to its lattice oxygen yet not so notable; XPS indicates that little sulfur on surface exists as S〓 in sulfate, showing that TiO〓 could restrain the generation of sulfate.

对于过渡金属氧化物催化剂的研究发现，在300℃～900℃范围内，不同的催化剂均可获得很高的NH〓转化率，反应初期由于催化剂还未硫化，所以SO〓的转化率较低，随着温度升高和反应时间的延续，SO〓的转化率逐渐升高并达到了稳定值；七种过渡金属氧化物中，以〓对于NH〓还原SO〓反应的活性和选择性最好；XRD结果表明在NH〓-SO〓反应后生成了稳定的硫化物相，硫化物对SO〓的还原过程具有重要作用，催化剂的活性相可能是过渡金属硫化物，而且在硫化物催化剂上进行的H〓还原SO〓生成H〓S的反应是整个过程的速率控制步骤，所以催化剂的活性与其自身的晶格氧的氧化还原能力有一定的联系，但关系不明显；XPS结果表明催化剂表面的硫大部分以过渡金属硫化物的形式存在，只生成少量的S〓，说明TiO〓催化剂能够较好的抑制硫酸盐的生成。

The volatilized ammonia in removing process had been absorbed completely by using vitriol, which could produce dilute ammonium sulfate that should be reused in washing process in V2O3 production, which could avoid secondary pollution.

采用硫酸对吹脱出的氨完全吸收，产生的硫酸铵稀溶液回用于三氧化二钒生产工艺中的洗涤工序，避免二次污染的产生。

In the electrochemical process, ammonia was removed by either direct or indirect electrochemical oxidation process.

直接电化学氧化和间接电化学氧化是氨氮电化学氧化的两种方式。

Experiment for precision casting enterprise in the production process of ammonia emissions from wastewater, in order to better determine the operating parameters to achieve a reasonable construction costs and operating costs; unsuitable for biological treatment of ammonia nitrogen wastewater treatment will provide more choice; can be applied to similar waste water, a wide range of applications.

实验针对精密铸造企业在生产过程中所排放的氨氮废水，目的是为了确定较好的运行参数，达到合理的建设费用和运行成本；对于不适于生物法处理氨氮废水处理提供了更多的选择；可以应用到类似的废水，应用广泛。

This paper introduces how the small fertilizer plant control diluted ammonia waste water by process flow of recovery liquid ammonia product by distillation technology, and also introduces its equipment selection, project investment and benefit analysis.

简要介绍采用蒸馏回收液氨技术治理小氮肥厂废稀氨水的工艺流程、术特点、备选型、控水平以及工程投资与效益分析。

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。