青草亚洲国产高清_日韩a级毛片免费发布_日产美产国产一区二区三区在线_99久久免费播放_美女免费网站一区二区视频_无码中出人妻中文字幕av_亚洲天堂最新网址_中文日韩欧美制服_国产在线播放免费_日韩欧美亚洲另类激情三区

廢氣的處理應(yīng)從兩方面進(jìn)行：一是針對(duì)懸浮粒狀污染物的廢氣除塵；二是針對(duì)氣態(tài)污染物的廢氣凈化氣態(tài)污染物的控制主要是利用物化性質(zhì)，如溶解度、吸附飽和度、露點(diǎn)及選擇化學(xué)反應(yīng)等的差異，將污染物從廢氣中分離出來；或者將污染物轉(zhuǎn)化為無(wú)害或易于處理的物質(zhì)。廢氣凈化的基本方法有吸收法、吸附法、冷凝法、催化轉(zhuǎn)化法及燃燒法等。  

大氣污染的治理技術(shù)概述 大氣污染的治理技術(shù)是重要的大氣環(huán)境保護(hù)對(duì)策措施。潔凈燃燒技術(shù)是在燃燒過程減少污染物排放與提高燃料利用效率的加工、燃燒、轉(zhuǎn)化和污染排放控制等所有技術(shù)的總稱。 二氧化硫、氮氧化物和煙（粉）塵是我國(guó)主要的大氣污染物。減少二氧化硫、氮氧化物和 煙（粉）塵的排放，對(duì)于保護(hù)和改善大氣環(huán)境。不僅非常重要。而且十分緊迫。故對(duì)二氧化硫、 氮氧化物和煙（粉）塵控制技術(shù)做以下概述

潔凈燃燒技術(shù)

潔凈煤燃燒技術(shù)是指在燃前煤炭可以通過凈化來達(dá)到減少污染排放和在煤的燃燒過程中提高效率、減少污染物排放的技術(shù)。包括改變?nèi)剂闲再|(zhì)、改進(jìn)燃燒方式、調(diào)整積燒條件、適當(dāng)加入添加劑等方法來控制污染物的生成。  

高煙囪煙氣排放技術(shù)

煙氣的高煙囪排放就是通過高煙囪把含有污染物的煙氣直接排入大氣。是污染物向更大的范圍和更遠(yuǎn)的區(qū)域擴(kuò)散、稀釋。經(jīng)過凈化達(dá)標(biāo)的煙氣通過煙囪排放到大氣中。利用大氣的作用進(jìn)一步降低地面空氣污染物的濃度。 

除塵治理技術(shù)

煙（粉）塵凈化技術(shù)又稱除塵技術(shù)，它是將顆粒污染物從廢氣中分離出來并加以回收的操作過程。實(shí)現(xiàn)該過程的設(shè)備稱為除塵器，氣態(tài)污染物種類繁多，特點(diǎn)各異，因此采用的凈化方法也不同，常用的方法有吸收法、吸附法、催化法、燃燒法、冷凝法、膜分離法、電子束照射凈化法和生物凈化法等。

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.