再净化

Compressed acetylene access to a clean series of towers, tower 2 clean washed by the oxidation of sodium hypochlorite solution to remove sulfur, phosphorus and other impurities, and then into the tower and 10% to 15% alkali solution and, after purification acetylene by the cooling device of the initial removal of the water saturation after the sperm of more than 98.5 purity acetylene synthesis process used to send VCM.

压缩后的乙炔进入串联的1号清净塔、2号清净塔，经次氯酸钠溶液洗涤氧化除去硫、磷等杂质后，再进人中和塔用10%～15%碱液中和，净化后的乙炔经预冷器初步除去饱和的水分后，纯度98.5%以上的精乙炔送VCM合成工序使用。

Now, technology of EGR and aftertreatment are known as the two effective methods to purify NO_x emission which are available for diesel.

目前，废气再循环和后处理催化还原被公认为是可以应用在柴油机上比较有效的净化NO_x排放技术。

The effects of Canna indica Linn and hydraulic retention time in the purifying efficiencies for salty water treatment in TEDA Landscape River were studied in this paper.

通过空白对照和种植美人蕉2组处理系统，研究了美人蕉对泰达景观河道含盐再生水的净化效果以及水力停留时间对水体净化效果的影响。

We used quartz sand, cinder residue, steel furnace slag as filtering media according to proper proportion compound with organic matter and soil for sewage treatment for a period of over one year.

选取石英砂、煤灰渣和高炉渣作为介质，再按适当的比例配以有机质和土壤组成人工土填料处理柱，进行了不同基质垂直流人工湿地对城市污水的净化效果研究。

The results indicate that the precipitation rate of phosphoric acid is larger than 99% under the conditions of 2530 ℃, the mole ratio of trimeric cyanamide to phosphoric acid 21, two-step precipitation by trimeric cyanamide divided into two portions and separately stirring 60 min.

研究结果表明：在25~30 ℃、三聚氰胺与磷酸摩尔比为21、三聚氰胺分成两份进行两步沉淀、各搅拌60 min为三聚氰胺沉淀磷酸的最佳条件，在此条件下磷酸沉淀率大于99%；在磷酸三聚氰胺沉淀中夹带的氯化钙在固液质量比15、温度40 ℃和搅拌60 min下用水反复洗涤3次后可被完全去除；再将净化后的磷酸三聚氰胺与氨水反应，制得了符合GB 10205—2001标准的磷酸一铵和磷酸二铵产品。

College of Veterinary Medicine, China Agricultural University, Beijing 100094, China Abstract: A method has been developed to determine residual stilbenes such as diethylstilbestrol, dienestrol and hexestrol in animal tissues using solid phase extraction and gas chromatography-mass spectrometry.

动物组织样品在碱性条件下用乙酸乙酯提取，经碳酸钠溶液液-液分配净化，再用硅胶柱固相萃取净化，洗脱液均分成两份后经氮气吹干，分别用双三甲基硅基三氟乙酰氨和七氟丁酸酐衍生，采用选择离子监测模式进行测定，外标法定量。

A combined technology of ' tertiary treatment - ecological purification - in situ remediation' was proposed to reutilize the secondary treatment effluent with assured water quality and ecological safety of the urban rivers.

通过对相关案例和水质标准的分析，阐述深度处理和生态净化对污水景观河道回用的重要意义；提出改善回灌河道水质和确保生态安全的城市污水&三级处理+生态净化+河道修复&工艺；以宁波市南区污水处理厂污水再生回用工程工艺设计为例，从河道水体现状、再生水水质水量、投资与效益及配套保障措施等方面，探讨采用该工艺进行城市污水尾水再生和景观河道回灌，实现生态环境利用的技术经济可行性。

According to the pilot researches,the effects of Typha wetland and hydraulic retention time in the purification efficiency for highly salty reused water treatment in TEDA Landscape River were studied in this paper,while different kinds of contamination is evaluated.

通过香蒲湿地对天津泰达景观河道水体污染物去除的室内试验，研究了香蒲湿地对泰达高含盐再生水的净化效果以及水力停留时间对水质净化效果的影响，考察了不同污染物的去除情况。

That's where water treatment comes into the picture. A water treatment plant purifies the water by adding coagulant that precipitate impurities and particles in the water, allowing it to be flocculated and filtered. Chlorine is then added as a disinfectant before it can properly be called "tap water".

滤水厂将收集到的原水净化，一般都是将凝集剂加入原水中，使混杂於水中的悬浮物凝集成较大的粒块，再经过沉淀、过滤的净化过程，最后加入氯气消毒才能成为「滤水」。

After deeply treatment and purification of living sewage,its water quality to the standard can be reused as non-potable water is called Recovery Water or Recycle Water.

&中水&，又称再生水或再循环水，是部分生活优质杂排水经处理净化后，可以在一定范围内使用的非饮用水。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。