查询词典 water pollution

The application of RO apparatus in the treatment of blending water could settle the problem of liquor off-flavor induced by water quality pollution, improve liquor-making water quality evidently, and promote famous liquor quality.

利用反渗透装置处理勾兑用水可解决因水质污染而带给白酒的异杂味等问题，可明显提高酿酒用水的质量，促进名优酒质量的提高。

However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

The microbiological pollution of riverway water, canal water and lake water is severe and will be severer if the circumstance temperature rises.

嘉兴市城市市内河道水、运河水、湖泊水微生物污染严重，并随环境温度的升高，超标率增高。

Three methods of measuring radon in water (liquid scintillation method, bubble method and a scintillometer method) are presented, and show the application of these methods in water environment survey, hydrogeological engineering investigation, research of water environment pollution and prospecting of sandstone type uranium deposit of ISL.

介绍了水中氡的3种测量方法(液体闪烁法、扩散器法、α闪烁仪法)，并列出这些方法在水环境中的氡测量、水文地质工程、水环境污染研究，以及在地浸砂岩铀矿勘查中的应用。

A study on heavy metal pollution of water,bottom mud of river, and agricultural land soil was conducted in lower reaches of the smeltery. It indicated that heavy metal pollution in lower reaches of smeltery changed regularly and a mathematical pattern was suggested.

摘要研究冶炼厂下游河道水质、河底污泥、农田土壤的重金属污染状况，明确了冶炼厂下游环境的重金属影响的变化规律，提出了冶炼厂下游土壤重金属污染的数学模型。

The fifth chapter: regionally environmental program. Through argument of environmental reasonability of general program, set down the control goals of waste gas, waste water discharging, sound pollution and solid waste, and established preventing program of pollution and ecological environment..

第五章：区域环境规划，通过对区域总体发展规划的环境合理性论证，确定了经济技术开发区大气污染、废水排放、噪声污染、固体废物等环境污染控制目标，并制定了污染防治规划和生态环境规划等。

Must defer to reduces a row of goal, is clear about the responsibility main body, the realization work measure, strictly prohibits increasing the source of pollution, gets down the big strength government existing source of pollution, strictly controls the pollutant to discharge the total quantity, enhances the sewage treatment rate, guarantees "the northward rerouting of southern river" the project water quality.

要按照减排目标，明确责任主体，落实工作措施，严禁新增污染源，下大力气治理现有污染源，严格控制污染物排放总量，提高污水处理率，确保"南水北调"工程水质。

The results of research on the factors affecting titanium tannage show that high concentration NaCl medium has larger negative effect on titanium tannage. When the NaCl concentration exceeds 5%, the titanium tanning action is reduced rapiddly. Traditional NaCl pickling is unsuitable for titanium tannage, tanning in water medium directly, the best tanning effect can be obtained, so titanium tanning can not only eliminate chrome pollution, but also diminish salt pollution. The optimum tanning conditions for HPZ-Ti tan liquor are pH3. 5, TiO〓 offer of 7. 5%(based on the weight of 65% moisture pelt), the best Bascity of tan liquor is between 30% and 50%.

以HPZ—Ti鞣液为基础，研究了不同鞣制介质，鞣制pH值，鞣剂用量和浓度，鞣液的碱度，不同提碱剂，不同的预处理和后处理等因素对钛鞣的影响，结果表明：高浓度的NaCl溶液介质对钛鞣有很大的负面作用，当介质NaCl浓度超过5%，革内钛的结合量和革的Ts明显降低，传统的高浓度NaCl浸酸工艺不适合于钛鞣，在水介质中直接鞣制效果最好，所以钛鞣不仅消除了铬污染而且大大降低了盐的污染。

The success of the product development and production of completely solve the "yellow rust," Water and pipelines such as plug fouling problems to ensure that drinking water was not secondary pollution, a fundamental guarantee for the supply of drinking water quality, with the international standards of high-tech Crystallization.

该产品的成功开发生产彻底解决了"锈黄水"及管道结垢堵塞等难题，确保饮用水不被二次污染，从根本上保证了饮用水的供水质量，是与国际接轨的高科技结晶。

So in order to deal with the problem, both the living habit and distribution of Chironomus larva in the water treatment system and the methods in removing Chironomus larva at present were introduced in this article. Meanwhile, the relationship between its physiological characteristic and environmental factors was demonstrated. Also the research status、advantage and limitation of different methods in the remove of Chironomus larva were analyzed systematically and some scientific tendencies were prospected. It was suggested that enhancing the management to the raw water and optimizing the drinking water treatment processes were the feasible ways to effectively control the pollution.

本文首先介绍了摇蚊幼虫的生活习性及其在水处理工艺中的分布规律，然后对其生理特性与环境因子之间的关系进行了论述；并就近年来采用物理法、化学法和生物法防治水处理工艺中摇蚊幼虫污染的研究进展、现状和局限性进行了较为系统的分析，展望了摇蚊幼虫污染防治技术的研究前景，指出目前控制饮用水中摇蚊幼虫污染必须将水源水质水控制、污染治理与净水工艺处理结合起来，优化水处理工艺和强化水源水体保护是根本保障。

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。