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  • 废气治理的净化技术方法
  • 本站编辑:杭州瑞茂环保技术有限公司发布日期:2019-06-10 06:41 浏览次数:

大发棋牌下载废气的处理应从两方面进行:一是针对悬浮粒状污染物的废气除尘;二是针对气态污染物的废气净化气态污染物的控制主要是利用物化性质,如溶解度、吸附饱和度、露点及选择化学反应等的差异,将污染物从废气中分离出来;或者将污染物转化为无害或易于处理的物质。废气净化的基本方法有吸收法、吸附法、冷凝法、催化转化法及燃烧法等。  

大气污染的治理技术概述 大气污染的治理技术是重要的大气环境保护对策措施。洁净燃烧技术是在燃烧过程减少污染物排放与提高燃料利用效率的加工、燃烧、转化和污染排放控制等所有技术的总称。 二氧化硫、氮氧化物和烟(粉)尘是我国主要的大气污染物。减少二氧化硫、氮氧化物和 烟(粉)尘的排放,对于保护和改善大气环境。不仅非常重要。而且十分紧迫。故对二氧化硫、 氮氧化物和烟(粉)尘控制技术做以下概述

洁净燃烧技术

洁净煤燃烧技术是指在燃前煤炭可以通过净化来达到减少污染排放和在煤的燃烧过程中提高效率、减少污染物排放的技术。包括改变燃料性质、改进燃烧方式、调整积烧条件、适当加入添加剂等方法来控制污染物的生成。  

高烟囱烟气排放技术

烟气的高烟囱排放就是通过高烟囱把含有污染物的烟气直接排入大气。是污染物向更大的范围和更远的区域扩散、稀释。经过净化达标的烟气通过烟囱排放到大气中。利用大气的作用进一步降低地面空气污染物的浓度。 

除尘治理技术

烟(粉)尘净化技术又称除尘技术,它是将颗粒污染物从废气中分离出来并加以回收的操作过程。实现该过程的设备称为除尘器,气态污染物种类繁多,特点各异,因此采用的净化方法也不同,常用的方法有吸收法、吸附法、催化法、燃烧法、冷凝法、膜分离法、电子束照射净化法和生物净化法等。

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The treatment of exhaust gas should be carried out from two aspects: First, the exhaust gas dust removal for suspended granular pollutants; The second is that the control of gaseous pollutants for the purification of gaseous pollutants is mainly to separate pollutants from the exhaust gases by using the physicochemical properties, such as the differences in solubility, adsorption saturation, dew points, and chemical reactions。 Or convert pollutants into harmless or easily treatable substances。 The basic methods of waste gas purification include absorption method, adsorption method, condensation method, catalytic transformation method and combustion method。
An Overview of Air Pollution Control Techniques It is an important countermeasure to environmental protection of the atmosphere. Clean combustion technology is a general term for all technologies such as processing, combustion, conversion, and pollution emission control that reduce pollutant emissions and improve fuel use efficiency during the combustion process. Sulfur dioxide, nitrogen oxides and dust are the main air pollutants in China. Reducing emissions of sulphur dioxide, nitrogen oxides, and smoke(powder) dust for the protection and improvement of the atmosphere. Not only very important. And it's urgent. Therefore, the control technology of sulfur dioxide, nitrogen oxide and smoke(powder) dust is summarized below.
Clean combustion technology
Clean coal combustion technology refers to the technology that coal can reduce pollution emissions through purification before combustion and increase efficiency and reduce pollutant emissions during coal combustion. Including changing the nature of the fuel, improving the combustion method, adjusting the heating conditions, and appropriately adding additives to control the generation of pollutants.
High chimney flue gas emission technology
The high chimney discharge of flue gas is the direct discharge of pollutant flue gas into the atmosphere through the high chimney。 It is the diffusion and dilution of pollutants to a larger range and beyond。 Flue gas that has been purified is discharged into the atmosphere through the chimney。 Using the role of the atmosphere to further reduce the concentration of surface air pollutants。
Dust treatment technology
Smoke(powder) dust purification technology, also known as dust removal technology, it is the separation of particulate pollutants from the exhaust gas and recovery of the operation process. The equipment that implements this process is called a precipitator. There are many types of gaseous pollutants and their characteristics are different. Therefore, the purification methods used are also different. Commonly used methods include absorption method, adsorption method, catalytic method, combustion method, condensation method, membrane separation method, electron beam irradiation purification method and biological purification method.

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