banner
Your current location: 新风空气消毒净化系统 > English > News > Industry News >
Industrial waste gas come from?
Author: Li Deng environmental protection

With the continuous improvement of the level of industrialization, man-made air pollutants accounted for the total air pollutant increasing proportion, harm to human health is increasing. At present, most of the industrial sector emissions of air pollutants: Petroleum and chemical industry, metallurgical industry, power industry, building materials industry and so on, the main harmful gas industrial emissions of pollutants NOx, SO2, P, CO, halogenated hydrocarbons, volatile organic compounds (VOC) such as the adsorption and separation of a brief analysis of governance prospect and feasibility the following:

(1) the control of sulfur dioxide

Sulfur oxides are mainly sulfur dioxide, in the atmosphere, it is one of the largest number of the most widely distributed and most affected by environmental pollutants, the main methods are: control of high chimney dilution, using low sulfur fuel, exhaust gas desulfurization, in recent years by dry (adsorption method), wet desulfurization technology to carry out more study on industrial application is very mature. The removal of exhaust gas adsorption method in SO2 is divided into physical adsorption and chemical adsorption, physical adsorption was the selective absorption of SO2 by heating or step-down desorption, chemical adsorption and adsorption catalysis, the adsorbed SO2 is oxidized by oxygen in the exhaust gas into SO3, the latter with water to produce sulfuric acid.

(2) emissions containing halogenated hydrocarbons such as trichloroethylene, three chlorine ethane purification

Waste gas containing halogenated hydrocarbons purification the mature technology is solvent absorption or adsorption process, such as: it is widely used in industry of trichloroethylene, are toxic pollutants harmful to human body and environment, including industrial emissions must be removed before the trichloroethylene content exceed the standard of TCE, which can use adsorption of trichloroethylene trichloroethylene the content of the effective control of emissions and recycling.

(3) the removal of carbon monoxide in exhaust gas

CO is a kind of flammable and toxic gases, untreated emissions to serious air pollution, so, strictly control the content of CO in the row of deflation is very meaningful.

(4) PSA oxygen rich city waste gas


Message