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硫酸处理

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The eluviation experiment of the two-stages column filled with steel slag farther showed this process can be used as the pretreatment stage of chromium-containing wastewater treatment in industry.

结果表明,经硫酸亚铁还原处理后再用钢渣处理比单纯用钢渣处理的效果明显提高,采用钢渣/总铬质量比为40的100目钢渣处理经硫酸亚铁还原后的含铬废水,总铬和Cr^6+去除率分别达79%和84%,采用钢渣柱进行的两级淋滤实验进一步表明该方法可作为工业上含铬废水处理的预处理段。

Rare precious metals company mainly engaged in electroplating and metal surface treatment, environmental treatment, washed clean of raw materials: silver nitrate, nitric acid and rhodium, palladium nitrate; Asia selenium acid, selenium dioxide, tellurium dioxide, mineral selenium powder Japan, Mitsubishi Se powder, Mitsui, Sumitomo, emerging, Germany selenium powder; molybdenum trioxide, DMF; TX-10, NP-9 series, EDTA series; sodium hypophosphite, nickel nitrate, metal thallium, rhodium, palladium, platinum , Beryllium, Ritek, zirconium products; sponge palladium; electrolytic nickel, nickel corner, hydrazine hydrate, Ultra-fine silver, nano-silver; Thallium sulfate, iodized Thallium sulfate, nickel, copper sulfate, copper chloride, copper oxide, nickel oxide , Lanthanum oxide, oxidation Er, bismuth oxide, bismuth ingots, tin ingots, indium ingot, indium foil, Xinding, zinc powder; SnCl2, sulfate-tin; hydrofluoric acid, white Vaseline, propylene glycol, dichloro Methane, the propylene glycol, triethanolamine, triethanolamine oleic acid soap, chloroform, pyrophosphate copper, Gioia sodium, polyacrylamide, PAC, oleic acid, Glycerol, phosphate and other domestic and imported chemical series.

公司主要经营稀贵金属及电镀金属表面处理、环保污水处理、洗涤清洗原料:硝酸银、硝酸铑、硝酸钯;亚硒酸、二氧化硒、二氧化碲、日本矿业硒粉、三菱硒粉、三井、住友、新兴、德国硒粉;三氧化钼、二甲基甲酰胺;TX-10、NP-9系列、EDTA系列;次亚磷酸钠、硝酸镍、金属铊、铑、钯、铂、铍、铼、锆系列产品;海绵钯;电解镍、镍角、水合肼、特细银粉、纳米银粉;硫酸铊、碘化铊、硫酸镍、硫酸铜、氯化铜、氧化铜、氧化镍、氧化镧、氧化铒、氧化铋、铋锭、锡锭,铟锭、铟箔、锌锭,锌粉;氯化亚锡、硫酸亚锡;氢氟酸、白凡士林、丙二醇,二氯甲烷,二丙二醇,三乙醇胺、三乙醇胺油酸皂、三氯甲烷、焦磷酸铜、焦亚硫酸钠、聚丙烯酰胺、聚合氯化铝、油酸、甘油、磷酸等国产、进口化工系列。

Complex flocculant PASS has the abilities of neutralizing electric charge and flocculating. The experimental results show: it is feasible that the emulsion wastewater can be treated into qualified discharging water. The dosage of flocculants and pH value have been optimized by coagulation experiments. In addition the mechanism for emulsion wastewater has been studied by using Perron timed complex colorimetric method and neutralization method. Aiming at characteristics of high concentration and high CODCr emulsion wastewater the technology that emphasized on coagulation-precipitation twice has been proposed in this paper.

本文采用复合型絮凝剂处理乳化液废水,研究结果表明,乳化液废水的处理过程包括凝聚脱稳及吸附絮凝,其中絮凝是决定混凝效果的关键性步骤,复合型絮凝剂聚硅酸硫酸铝是一种既具有较强的电中和能力,又具有优异的絮凝性能的无机混凝剂,通过对乳化液废水药剂筛选实验,实验结果表明聚硅酸硫酸铝对乳化液废水是比较合适的混凝剂,并确定了药剂的最佳投药量、最佳pH值条件等操作参数,针对乳化液废水的特点,综合国内外研究成果和经验,提出了二次混凝沉淀处理方案,该方案具有处理设备结构简单、运行管理简便等优点。

Calibration models were established by the spectral measurement of a set of hydrolyzed standard sugar solutions by treating with concentrated sulfuric acid and a chemometrical software.

其原理是基于样品中的糖经浓硫酸处理后生成有紫外吸收的糠醛和羟甲基糠醛,进行紫外波长吸收测定;通过化学计量学软件,根据一组已知糖浓度标准样品的多波长光谱和所对应组成浓度之间的数学关系,建立校正模型。

Circular dichroism spectroscopy measurements also reveal that the ordered structure content of α-helical and β-structure of ovalbumin decrease, and the unfolded random structure is enhanced with increasing pressure; While the existence of dextran sulphate to the native ovalbumin, there are no apparent change on the secondary structure of ovalbumin; It seems same to glycinin.

圆二色性光谱分析表明,经超高压处理后,鸡蛋清蛋白分子中规则的二级结构减少,而部分规则的二级结构和无规卷曲含量增加。加入硫酸右旋糖苷的鸡蛋清蛋白溶液经超高压处理后其二级结构中各部分的含量变化不大:对于大豆豆球蛋白,加入硫酸右旋糖苷后,大豆豆球蛋白分子经超高压处理后其有序结构的减少及无规卷曲的增加都相对减缓。

The main products of our company are Industrial aluminium sulphate,Water-treatment aluminium sulphate,Ironless aluminium sulphate,Aluminium sulphate powder,Polyaluminium Chloride, Aluminum ammonium sulfate,High-purity ultrafine powder alumina,Ferrous Sulphate Monohydrate,Ferrous sulphate heptahydrate ect.

公司的主要产品有工业硫酸铝,水处理硫酸铝,无铁硫酸铝,硫酸铝粉末,一水硫酸亚铁,七水硫酸亚铁,聚合氯化铝,硫酸铝铵,高纯超细氧化铝。

The results indicates:immersing seeds of Acacia confusa、Leucaena glauca in sulphuric acid for 7'、1.5' and seeds of Albizia falca in hot water at 70℃ are the optimization treatment condiaions,its germination ratio reached 80%、57% and 46%.

结果表明,台湾相思和新银合欢分别用浓硫酸处理 7min、1.5 min,南洋楹用始温为 70℃的热水处理效果为最好,其发芽率分别达 80 %、5 7%和 46

DHCC Constance in the chemistry belongs to the onlighted Cyclopentanoperhydrophenanthrene when it reacted together with the acid Constance it could transform into the fluorescence phenol.we did the flouric determination for the DHCC, in which treated by the ethanol-sulfuric acid or acetic anhydride-methylene chloride-sulfuric acid, acquired standard curve in the 0-40μg/ml presented the liner relet...

DHCC类物质在化学上属于不发光的环戎烷多氢菲类,但与酸性物质一起反应时,可转化为产生荧光的酚类。用乙醇硫—酸或乙酸酐—二氯甲烷—硫酸处理后的DHCC进行荧光检测,获得标准曲线0—40μg/ml范围内呈线性关系,检出的最高灵敏度可达300ng/ml。该方法可用于分离后的DHCC及单一种DHCC代谢物的定性及定量分析。

Treatment with sulphuric acid leaves metallic copper as a residue and disolves out iron, cobalt, and nickel as the sulphates.

硫酸处理析出金属铜,并溶出含有铁、钴、镍的硫酸盐。加入石灰沉淀出铁;加入次氯酸钠沉淀,形成钴的羟化物。

Use sulphur acid treatment oil, but divided by some includes the sulphur compound, includes the nitrogen compound and colloid.

是用硫酸处理油品,可除去某些含硫化合物,含氮化合物和胶质。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。