Secondly, the technological process of waste gas treatment by film blowing is as follows: firstly, waste gas is collected through pipes and collecting hoods, and then the waste gas is introduced into low-temperature plasma waste gas treatment equipment. Under the action of high-voltage electricity in the equipment, the gas in the electric field is ionized into electrons and ions, and the electrons move in the high-voltage electric field and constantly collide with the surrounding gas molecules to produce more electrons and ions. There are a lot of electrons and ions in this high-voltage electric field, and the number of electrons and ions is equal. This area is called high voltage electrostatic body. In the area of high-voltage electrostatic body, harmful gas molecules gain a lot of energy and are prone to various chemical reactions, and harmful organic gases react with oxygen to generate water and carbon dioxide.
Then it is introduced into photo-oxygen catalytic waste gas purification equipment, and the harmful components in the waste gas are decomposed into carbon dioxide and water vapor through the reaction between ultraviolet light 185 and 254 wavebands light source and titanium dioxide catalyst, and then discharged through a15m chimney, or an activated carbon adsorption box is adopted, and the porous structure of the activated carbon provides a larger surface area by utilizing the adsorption characteristics of the activated carbon, so it is very easy to achieve the purpose of adsorbing and collecting impurities. Just like magnetic force, all molecules attract each other. Because of this, a large number of molecules on the pore wall of activated carbon can produce strong attraction, so as to attract impurities in the medium to the pore size.
The treatment method of organic waste gas can meet the requirements of waste gas emission, and the investment amount is relatively small, which does not produce secondary pollution and does not require special personnel to operate the equipment. This equipment has been installed in several plastic processing plants.
Today, I will mainly introduce several other methods:
Photoquantum purification method:
The purification method of optical quantum mainly produces optical quantum with different energy by exciting light source. Ozone can generate a large number of new ecological hydrogen, active oxygen, hydroxyl oxygen and other active groups by using the strong absorption of light quantum by odorous substances, and some odorous substances can also react with these active groups, and finally transform into harmless substances such as CO2 and H2O, so as to achieve the purpose of removing odorous gases.
The low-temperature plasma purification method has the following characteristics:
1. Long service life of the equipment: the equipment is made of 304 stainless steel, which is corrosion-resistant in acid gas. The service life is as long as 10 year;
2, high degree of automation, simple process, simple operation and no need for special supervision;
3. Energy saving: low operating cost is one of the core technologies of "low temperature plasma", which can treat 5000M3/h odor and the power consumption is only1000 W;
4. Wide scope of application: the purification zone can operate in the high temperature of 350 and the low temperature of -20, especially in the humid or even saturated air humidity environment.
Activated carbon adsorption equipment:
Adopting new activated carbon adsorption material as adsorbent has the advantages of low resistance, long service life and high purification efficiency.