硫酸处理

The coagulant has high rate of the turbidity when the pH value of the solution is 8～9, the dosage(Fe3+) is 2～5 mg/L and alkalization of PFS is 7%～14% in flocculating experiment by PFS made for the flotation waste water.

用制备的PFS进行絮凝实验，在处理选矿废水时，当溶液的pH值在8～9之间，投加量为2～5mg/L（以Fe3+计）时，聚合度在7%～14%之间时，聚合硫酸铁对废水浊度去除有较好的效果。

It is manufactured through kneading, cold pressing and post-treatment; and the materials for the synthetic brake shoe include butadiene-acrylonitrile rubber, phenolic resin, graphite, iron powder, barium sulfate, potash feldspar powder, composite fiber, sulfur, hexamethine tertramine, polymethylene aniline, 2-mercaptan benzothiazole, zinc oxide and toluene.

同时本发明的提供了采用捏合、冷压、后处理工艺来制造新型高摩擦系数合成闸瓦。组成新型高摩擦系数合成闸瓦的各组分重量百分比如下：丁腈橡胶为6.20％，酚醛树脂为10.00％，石墨为15.00％，铁粉为11.03％，硫酸钡为30.00％，钾长石粉为5.00％，复合纤维为20.20％，硫磺为1.00％，六次甲基四胺为1.00％，聚亚甲基聚苯胺0.12％，2-硫醇基苯并噻唑0.15％，氧化锌0.30％，甲苯8.0％。

The traditional production process for biurea is sulfuric acid method,in which such problems as serious corrosion of equipment,difficulty at sewage treatment,and expensive environmental protection exist.

传统的硫酸法联二脲生产工艺存在设备腐蚀严重、污水处理难度大、环保费用高等问题。

The results showed that more effective measures are the blading pierced seeds and sulfuric acid soaking seeds 50min.

结果表明：刀片破皮和98%浓硫酸浸种50min效果较好，处理后种子发芽率分别达到98.0%和98.7%。

Activation with dilute chloric acid or sulfuric acid solution was adopted as pretreatment of traditional citric gold plating .

传统的柠檬酸盐镀金工艺前处理采用稀盐酸或稀硫酸活化，活化液可能被带入镀金溶液，造成SO2-4、Cl-积累，严重影响柠檬酸镀金溶液的稳定性和镀层质量。

The key was elaborated strengthen research of technology of titanium white aftertreatment, promote product of vitriolic law titanium white energetically high-grade change, accelerate research of technology of chloridize law titanium white and industrialization process, the aspect that alters high-grade titanium white to count an import gradually and accelerate metallic titanium to grow pace, conform with international person of the same trade as soon as possible wait for a viewpoint.

重点阐述了加强钛白后处理技术研究，大力促进硫酸法钛白产品高档化，并加快氯化法钛白技术研究和产业化进程，逐渐改变高档钛白依赖进口的局面以及加快金属钛发展步伐，尽快与国际同行接轨等观点。

The invention discloses a synthetic using method of smelting high-furnace dust, which comprises the following steps: grinding the high-furnace dust with 1.5-15% zinc; proceeding magnetic cobbing; reclassifying to obtain the refined ferric ore; disposing ore tail through waste acid of titanium dioxide with 15-30% sulphuric acid; transmitting the zinc oxide in the solution at zinc sulfate pattern; separating solid and liquid solution through lime; obtaining refined zinc ore through S2-, CO32-, HCO3- ion; floating the immersed slag through neutral oil.

一种炼铁高炉炉尘资源综合利用的方法，含锌1.5％～15％的高炉炉尘经磨矿、磁选、重选回收铁矿物获得铁精矿，选矿尾矿用含硫酸15％～30％的钛白废酸处理，使其中的氧化锌以硫酸锌的形式转入溶液中，固液分离得出的溶液用石灰中和除铁后，再用S2-、CO32-、HCO3-离子沉锌获得锌精矿，浸出渣用中性油浮选获得炭精矿。该方法将钛白废酸和高炉炉尘结合在一起，使之成为互为所需的原料和试剂，有效地将两种废弃物变成了有价资源，较好解决了环境污染问题，同时又能产生好的经济效益。

As the increase of the concentration of magnesium sulfate and time, the micronucleus and the chromosomal aberration of Vicia faba root tip cells increased first and then decreased.

且随着硫酸镁溶液浓度的升高和处理时间的延长，蚕豆根尖细胞的微核率和染色体畸变率均呈先上升后下降的趋势。

In 2006 to invest 200 million yuan into the waste acid treatment equipment has been put into operation the production of ferrous sulfate heptahydrate (FeSO4.7H2O) over a hundred tons, is now on sale.

于2006年投资200余万元建成的废酸处理设备投入运行以来已生产七水硫酸亚铁（FeSO4.7H2O）百余吨，现已销售。

Polyaluminum chloride (PAC-1) is a new and efficient inorganic polymer coagulants. The selection of bauxite products, calcium aluminates, hydrochloric acid produced with advanced technology, have a good flocculation effect. its effect is better than the traditional aluminum sulfate and water purification molysite ordinary inorganic coagulants and general polyaluminum chloride. can be widely used in industrial water purification and wastewater treatment. of sewage and wastewater is also ideal purifying effect.

聚合氯化铝（PAC-1）是一种新型高效的无机高分子混凝剂，本产品选用铝矾土、铝酸钙粉、盐酸以先进工艺制成，具有良好的絮凝效果，其净水效果优于传统的硫酸铝和铁盐等普通无机盐类混凝剂及一般的碱式氯化铝，能广泛用于工业用水及废水的净化处理，对生活污水和各行业废水也具有理想的净化效果。

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