查询词典 turbidity

This study examined the alumina ceramic membrane to deal with high turbidity water flux changes in the law of decay was found in the early running flux decay rapidly, the latter tends to slow decay, a linear decline in the overall. 51qikan.

Key words： high-alumina ceramic membrane separation of water turbidity摘要：本实验研究了氧化铝陶瓷膜处理高浊度水时膜通量衰减变化规律，发现运行初期膜通量衰减很快，后期衰减趋于平缓，总体成线性下降。

Turbidity of outflow reached the lowest level when ration of PAM towards sludge and water together equaled 1∶1. According to the orthogonal experiments, the sequence for four main factors of this technology influencing turbidity could be expressed as: poly-ferric chloride dosage, rotational speed of mechanical blender, activated sludge dosage, and PAM dosage.

同时，采用正交实验考察了不同因素对高效絮凝沉淀工艺的处理效果的影响程度，分析得出影响试验出水浑浊度的显著性顺序依次为：聚合氯化铁投加量＞机械絮凝搅拌转速＞活性污泥投加量＞PAM投加量。

The high turbidity problem in water out of the cyclofloc always exist in Pech?-David water treatment plant at Toulouse in France. Compared with the other water treatment plant at Toulouse, the turbidity of Pech-David was 2.3NTU and was higher than that of Clairfont as 0.5NTU. Coagulation jar-tests with several coagulants and coagulation aids from Floerger and Ciba company were studied to solve this problem.

法国图卢兹市的Pech-David自来水厂所用处理工艺中的cyclofloc沉淀池出水浊度过高（2.3NTU，该市另一个水厂平流沉淀池的出水浊度0.5NTU），为了寻找试剂来改善该浊度问题，结合来自Floerger以及Ciba公司的混凝剂与助凝剂，进行混凝实验。

The turbidity change characteristics of sodium resinate solution was studied at the existence of calcium ions. The effect of ACS, a kind of heavy metal ion complexing reagent at different temperature, pH, dosage of ACS, and adding order on the solution turbidity was investigated in this paper.

研究了树脂酸钠在Ca(上标 2+)存在下的溶液浊度变化特点，分析了不同反应温度、溶液的pH、ACS用量及添加顺序等工艺条件对多价金属离子络合剂ACS控制树脂酸钠的影响。

According to the international standard ISO7027,we can know that the measurement of turbidity mainly use the optical turbidimeter measurement,it contains the scattering-light method and transmitted-light method. The scattering-light method has application in measurement for low turbidity water and also can used in high turbidity water.On the other hand,the transmitted-light method is more suitable for high turbidity measurement.

根据国际标准ISO7027可知，现今测量水的浊度主要以光学浊度仪测量法为主，主要包括散射光法和透射光法两种，散射光法主要用于测量低浊度水，但也可用于高浊度水的测量；而透射光法更适合于测量高浊度水。

Turbidity is a qualitative measure of the amount of dissolved solids in a process stream and is measured in nephelometric turbidity units.

混浊度是衡量质量的数额溶解固体流的过程中，是衡量散射浊度单位。

Itis therefore important to treat the water before disinfection to produce a water with a median turbidity not exceeding 1 nephelometric turbidity unit and not exceeding 5 NTU in any single sample.

因此，消毒前对水进行适当处理，使水的半混浊度不超过1浊度的浊度单位，在任一纯样品中不超过5NTU是很重要的

The results of research showed that compound ferrous flocculant has simple preparation and not any second pollution matter is produced to the environment, it has big and stout floes formation and fast speed sedimentation while dealing with waste water, it is positively charged according to the electrophoresis, it belongs to cationic flocculant, can gives better coagulation results in turbidity removal, color removal, the maximum removal rate of turbidity and color are 95.4% and more than 81.7%, respectively. There are interactions between polysilicic acid and hydrolyzed ferrous species, the compound ferrous with appropriate Si/Fe not only but also can lower the water treatment cost. The compound ferrous removes colloid particles in water by charge oxidation-reduction, neutralization and furl mechanism.

研究结果表明：复合亚铁制备工艺简便，无二次污染；处理水样时产生的矾花大，密实、沉降速度快；复合亚铁带电性为正，为阳离子型絮凝剂；复合亚铁具有较好的除浊、脱色能力，除浊率及脱色率最高分别可达95.4％及81.7％；在复合亚铁中，聚硅酸与亚铁的水解产物间存在着相互作用，合适的硅铁摩尔比有利于提高混凝效果，而且还可以降低投药成本；复合亚铁是通过氧化还原、吸附电中和及卷扫三种作用机理起混凝作用的。

The RE of TP, COD and turbidity except NH4+-N in the aeration process by adding AS and PAM for enhanced chemical phosphorus removal increased by 7.3~59.2%, 5.0~20.3% and 10.9~34.7%, respectively. Given enough dissolved oxygen, the nitrification was not affected by adding AS and PAM in the dosage range of the study. The RE of TP, COD and turbidity by postpose coagulation were better than by simultaneous coagulation, however, coagulation and sedimentation equipments were needed in postpose coagulation process. Therefore simultaneous coagulation was more suitable for transformation of AB process for chemically enhanced phosphorus removal.

曝气过程中投加AS和PAM复配化学强化除磷，总磷、COD、浊度去除率分别提高了7.3～59.2%、5.0～20.3%、10.9～34.7%，但不能提高氨氮的去除率；在溶解氧足够时，本研究投加量范围的AS和PAM的加入对硝化作用无影响；后置混凝对TP、COD、浊度的去除效果优于同步混凝，但需增加混凝沉淀设备，因此同步混凝更适合于于AB工艺的化学强化除磷改造。

This paper analyses the problem of abnormal turbidity in the operation of a small water treatment plant in north Jiangsu,and holds that its main causes are contamination of raw water,abnormal water turbidity before filtration,filter trouble and superstandard of colibacilli.

对苏北某小型水厂运行过程中出现的浊度异常问题进行了分析，认为原水受到污染、滤前水浊度异常、滤池故障、大肠杆菌超标等是引发浊度异常的主要原因。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。