The adsorbent adsorbs free oxygen

The main waste gas treatment methods are:

1. The exhaust gas collection hood of the exhaust gas source is connected to the main pipeline by collecting the exhaust gas of each exhaust gas source in the workshop.

2. Spray the absorption tower to absorb the inorganic exhaust gas, dust and particulate matter that can be dissolved in water, and reduce the temperature of the exhaust gas.

3. Low-temperature plasma waste gas treatment equipment destroys the molecular structure of waste gas and converts it into non-polluting substances.

4. The high-pressure fan draws the wind out of the workshop under the suction of high pressure.

5. Purify the absorption tower to further absorb dust, particulate matter and some inorganic gases, and wash small molecule fragments with water.

6. Chimney high-altitude discharge, but also low-altitude discharge.

These waste gas treatment equipment is also widely used, which can be used in petrochemical, yao industry, feed and fertilizer processing plants, animal husbandry product farms, chemical fiber factories, tanneries, pulp mills, sewage pumping stations, various sewage treatment plants, coatings, food additives factories, leather processing, photosensitive materials, automobile manufacturing, public toilets, fecal transfer stations and many other industries.

It can be adsorbed or destroyed for incineration, and adsorption is basically prohibited in industrial waste gas treatment. Because after adsorption, the exhaust gas cannot be completely purified. Destructive incineration is divided into different technologies such as RCO, RCO, CO, and CO plasma catalysis.

The design selection of the process can be carried out according to the working conditions. At present, RTO, RCO, and CO are gradually becoming mainstream technologies.

Waste gas treatment generally depends on the type of waste gas, different waste gas is treated in different ways, and only targeted treatment can get better results.

Waste gas is divided into organic waste gas and inorganic waste gas. Organic waste gas refers to the waste gas that is flammable, explosive, toxic and harmful, and not easily soluble in water. Inorganic exhaust gas refers to dust, acid mist and alkali mist.

Several waste gas treatment methods are introduced: 1. Organic waste gas treatment methods: water film dust removal + activated carbon adsorption method; b.

Dry filtration and dust removal + activated carbon adsorption method cactivated carbon adsorption + catalytic combustion; 2. Acid mist waste gas treatment method: water film packing tower + alkali (acid) liquid absorption; swirl water washing spray method + lye absorption; 3. Kitchen fume and fire smoke treatment methods:

Filtration and adsorption oil fume purification; Electrostatic fume purification; Swirl plate washing spray method.

Organic waste gases(2) The harm of organic waste gas: In production, the emission of organic waste gas has always been a very prominent problem, and most of the organic waste gas is harmful to human health. For example, after organic waste gas enters the human body through the respiratory tract and **, it can cause temporary and permanent lesions to people's respiratory, blood, liver and other systems and organs, especially benzopyrene polycyclic aromatic hydrocarbons can directly cause cancer to the human body and endanger human health.

Organic waste gases can also cause serious air pollution. After some organic matter enters the atmosphere, photochemical smog is formed under certain conditions, causing secondary pollution. After some organic matter enters the stratosphere, it reacts photochemically with ozone under ultraviolet irradiation, causing an ozone layer hole. Some organic substances have the duality of odor pollution and harmful gases; There are also organic substances that cause the greenhouse effect.

3) Waste gas treatment method:

a.Water film dust removal + activated carbon adsorption method;

b.Dry filtration and dust removal + activated carbon adsorption method;

c.Adsorption + catalytic combustion device.

VOC incinerator exhaust gas treatment device.

Acid mist exhaust gases(2) The harm of acid mist exhaust gas: the air pollution caused by acid mist gas causes great harm to the human body, especially the direct damage and indirect impact on the on-site operators, crops and soil near the factory are often not measured by money.

3) Waste gas treatment method: water film packing tower + alkali (acid) liquid absorptionFurnace exhaust gases, black smoke for power generation(2) The hazards of furnace exhaust gas and black smoke from generators: furnace exhaust gas and black smoke from generators are the main causes of acid rain, which cause greater air pollution, especially to the on-site operators, crops and soil near the factory.

3) Treatment method: swirl water washing spray method + lye absorption.

1. Condensation ** method.

The condensation method is a method of directly introducing the exhaust gas into the condenser or first adsorption and absorption, and then the analyzed concentrated exhaust gas is introduced into the condenser, and the condensate can be separated from valuable organic matter.

2. Absorption method. The absorption method can be divided into chemical absorption and physical absorption, because the organic waste gas contains a large amount of "triphenyl" gas, the chemical activity is low, and chemical absorption is generally not used.

Physical absorption is the dissolution of one or several components in the exhaust gas in the selected liquid absorbent, which should have a high affinity with the absorption components, low volatility, and should also have small volatility, and the absorption liquid is saturated and then cooled and reused.

3. Direct combustion method.

The direct combustion method is a method that uses the heat released by the combustion of auxiliary fuels such as gas or fuel oil to heat the mixed gas to a certain temperature (700 800) and stay for a certain time (seconds), so that the combustible harmful substances are decomposed into harmless substances at high temperature.

4. Thermal combustion method.

Thermal combustion refers to the process of raising the temperature of exhaust gas to the temperature of combustible pollutants and making it fully oxidized and decomposed.

5. Catalytic combustion.

Catalytic combustion is the process of completely oxidizing the harmful combustible components in the exhaust gas into carbon dioxide and water under the action of a catalyst.

6. Activated carbon adsorption method.

Activated carbon adsorption is to send the organic waste gas to the adsorption bed by the exhaust fan, and the organic waste gas is adsorbed by the activated carbon adsorbent in the adsorption bed to purify the gas, and the purified gas is discharged to the atmosphere to complete the purification process.

7. Biological law. The biological method is a process by which microorganisms take organic components as a source of carbon and energy and break them down into CO2 and H2O.

8. Plasma decomposition method.

Plasma decomposition method is an exhaust gas treatment method in which a large number of energy-carrying electrons generated by dielectric discharge bombards pollutant molecules under the action of an external electric field, triggering a series of complex physical and chemical reactions, so that pollutants can be degraded and removed.