Dr. Mg's research and development of Ashes in addition to "squat" technology

Recently, various degrees of haze weather have appeared in Beijing, Shanghai, Guangdong, Fujian, Zhejiang, and Jiangsu provinces. Due to the increase in haze weather is a reflection of high air pollution in cities, it has attracted much attention. A technical term called "PM2.5" has become the focus of public opinion.

PM2.5 refers to particles in the atmosphere that are less than or equal to 2.5 microns in diameter. This term has solved a long-standing doubt that plagued the public. That is: Why on the one hand is that the air quality is gradually improving, and on the Other hand, people's perception of air quality is getting worse. The original official standard for suspended air in the air was PM10, and people directly perceived PM2.5. It is understood that particles with a particle size of 10 microns or more will be trapped outside the nose of a person; fine particles with a particle size of less than 2.5 microns will not be easily blocked, and they will be called lung-infected particles. After being inhaled into the human body, they will directly enter the bronchus and interfere with the lungs. The gas exchanges in the Ministry caused diseases including asthma, bronchial and cardiovascular diseases.

Some experts said that coarse particles with a particle size of 2.5 microns to 10 microns mainly come from road dust, etc., and fine particles with a particle size of 2.5 microns (PM2.5) mainly come from the combustion of fossil fuels (such as motor vehicle exhaust, coal combustion, and volatility). Organic matter). As a result, the Pearl River Delta, Yangtze River Delta, and other areas where many automobiles and cities develop rapidly have become areas where fine particles of less than 2.5 microns are densely populated. According to data from the State Environmental Protection Administration, as early as 2005, the average proportion of China’s motor vehicle emission pollution in urban air pollution has reached 79%, which is the primary source of urban air pollution in China.

How to reduce the damage of fine particles below 2.5 microns to people, in addition to the relevant departments to increase energy-saving emission reduction efforts, whether relevant science and technology can ease and reduce regional air pollution? The reporter learned from relevant sources that Shanghai Tengbang Environmental Technology Co., Ltd., which conquered Expo visitors, was using a “low-carbon, environmentally friendly, and no secondary pollution” spray cooling system at the 2010 World Expo. Fine dust in the area, new technology for spray dust removal to improve air quality in the area. To this end the reporter visited the company specifically, the relevant personnel told reporters, spray dust removal technology in fact in the mines, thermal power plants, iron and steel metallurgy, chemical textiles and high dust industries have been used, but to eliminate fines below 2.5 microns Spraying equipment for particulate matter also has technical difficulties. For example, in order to adhere dust particles of different particle sizes in the air, smaller particles of mist must be produced. Only in this way can the particles of fog be combined with the particles of inhalable particles, and they will continue to aggregate and decrease through the surface tension of water. Dust and leaching air. How to make such fine mist particles still requires a period of technical hard work. Only through rigorous testing and experimentation can this technology enter the product manufacturing stage.

Spray technology is considered as a green environmental protection technology because it uses the pure physical means of water as a raw material for cooling and dust removal. But for most citizens, the most familiar thing is the cooling function that spray technology plays in the hot summer days. Shanghai Tengbang Environmental Technology Co., Ltd. will be able to further expand the application of spray technology if it can develop new spray dust removal products that will successfully reduce regional air pollution. To drive "fog" with "fog" may be the only way for auto cities to improve air quality.