查询词典 ammonia-soda process

An ammonia-oxidizing bacterial strain A5 was isolated from the activated sludge of A/O process,and identified as Nitrosomonas sp.

从厌氧好氧工艺的废水处理系统活性污泥中分离出亚硝化细菌A5 ，鉴定为亚硝化单胞菌 Nitrosomonassp。

Experimental results showed that, in this process, the optimal pH of the shortcut nitrification was 8.0～8.5; when the pH was less than 6,the nitrification is completely inhibited; when the pH was 6～7, at the end of aeration, the Nitrobacteria become the dominant bacteria because of the dropping of the free ammonia concentration. It is known to all, the activity of the Nitrobacteria and Nitrosomonas was affected by FA concentration, so nitrification was affected by FA concentration. According to the author's research results, the FA concentration which inhibit the Nitrobacteria was below 1.0mg/L,which inhibit the Nitrosomonas was above 10mg/L.

实验研究结果表明：本工艺中，短程硝化反应的最佳pH值在8.0～8.5之间，当pH小于6时，整个硝化反应都会受到抑制，当pH在6～7之间时，随着游离氨浓度的降低，在曝气后期，硝化菌将会占据优势；FA浓度对短程硝化反应的影响是通过对亚硝酸菌和硝酸菌的抑制来实现的，在本研究条件下，游离氨对亚硝酸菌的抑制浓度在10mg/L以上，对硝酸菌的抑制浓度在1.0mg/L以下；温度对短程硝化反应的影响是双重的，既影响微生物的生理活性，又影响FA浓度。

In this work, Near Infrared spectrum technique was used to measure the Caprolactam content in water system, the lactam content in benzene system and water content in ammonia oximate system, in the production process of Caprolactam.

近红外光谱分析技术具有快速、高效、测试费用低、重现性好、样品勿需处理，测试过程无污染的特点。

In this paper, the mechanism and forming process of the cracks in view of the stress corrosion were analyzed accounting for the pressure vessels working in the atmosphere of wet hydrogen sul-phide, sodium hydroxide or liquidized ammonia.

本文分析了压力容器及设备在湿润硫化氢、氢氧化钠溶液和液氨介质中应力腐蚀开裂的机理和应力腐蚀开裂的过程。

A process for partial conversion and low-temp transform of CO in the synthetic ammonia plant where coal is used to generate gas features that the Fe-Mo catalyst for partial conversion of CO, anti-poisoning agent and Co-Mo catalyst for low-temp conversion are used and the temp of semi-water gas is controlled to 200-260 deg.C at entering anti-poisoning layer, and 150-250 deg.C at the segments of said Co-Mo catalyst layer, and lower than 300 deg.C at bed layer to prevent high-temp reversal of sulfurizing reaction and make the catalyst activity optimal. Its advantages are long service life of catalyst, low system resistance, saving energy and convenient operation.

本发明是中小合成氨厂以一种CO部分转化抗毒保护层配低温变换的工艺，涉及煤造气合成氨厂0.6～2.0MPa半水煤气变换工艺流程，该工艺用铁－钼CO部分转化催化剂、抗毒剂，配钴－钼低变催化剂，半水煤气进入部分转化抗毒层温度为200～260℃，进钴－钼低变催化剂各段温度为150～250℃，床层温度控制在300℃以内，避免高温下反硫化反应发生，保护催化剂活性处最佳状态，寿命延长、系统阻力小、节汽、节电，具有比其他变换工艺更好地节能效果，操作方便，有效生产时间长，经济效益显著等特点。

Influence of fluorine on filtration of acidinsoluble matter, crystal and filtration of calcium nitrate , ammonia neutralization of mother liquor and evaporation process of slurry are discussed based on its increasing slurry viscosity, growing fine crystal and troubling filtration in production of nitrophosphate by nitric acid decomposing phosphate rock.

介绍在硝酸分解磷矿生产硝酸磷肥的过程中，杂质氟对酸不溶物过滤、硝酸钙结晶及过滤、母液的氨中和及料浆蒸发过程的影响。

According to the principle for desulfurization and cyanide removal, the ways of sulfur formation and conversion were preliminarily analyzed, the influence of the factors such as HS- concentration, gas volume, gas component, air volume, ORP value, catalyst and make-up amount of ammonia liquor for separating sulfur out of Takahax process were studied.

根据脱硫脱氰原理初步分析了硫的生成和转化途径，探讨了 HS-浓度、煤气量、煤气组分、空气量、 ORP 值、触媒及氨水补充量这些因素对塔卡哈克斯析出硫磺的影响。

Surface modified magnesium hydroxide particles were synthesized by one-step process using magnesium sulfate,ammonia liquor and sodium laurate as raw materials in alcohol-water system ac- cording to the spectra of FTIR,it was inferred that sodium laurate was bound on the surface of Mg_2 particles and an organic coat- ing layer also formed.

0引官Mg2是一种无机添加型无毒阻燃剂，具有阻燃、消烟、阻滴、填充等多重性能，与川3相比，具有高的热稳定性，高效促基材成炭作用和强除酸能力等特性，但也存在颗粒表面亲水疏油、易团聚、难分散、吸湿性强等缺点，导致材料加工成本增加和综合性能降低川。

The pH and ammonia nitrogen were two important factors to affect anaerobic process and methane generation of livestock manure.

发酵过程物料pH值和氨氮变化是影响畜禽粪便发酵进程和产气量的重要因素。

Ammonia produced in the production process can be absorbed and recycled.

生产过程中产生的氨气经吸收，可循环利用。

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。