How to deal with organic waste gas? What are the basic methods of organic waste gas treatment?

Organic waste gases can be treated in the following ways:

1.Biological treatment method: the use of microorganisms to decompose organic substances into inorganic substances to reduce pollutant emissions. This method is suitable for applications with low concentrations of organic waste gases, such as the treatment of household organic waste using zero-emission technology.

2.Adsorbent method: use activated carbon, zeolite and other adsorbents with good adsorption performance to adsorb pollutants in organic waste gas to achieve the purpose of purification.

3.Catalytic oxidation method: the catalyst is used to oxidize the harmful substances in the organic waste gas into carbon dioxide and water to reduce the emission of the organic waste gas. This method is suitable for the treatment of high-concentration organic waste gases, such as industrial waste gas treatment.

4.Pyrolysis method: the organic waste gas is heated to a certain temperature to decompose it into harmless substances, which can achieve the purpose of purification.

5.Steam regeneration method: the organic waste gas is in contact with the water through spraying, the organic matter is dissolved in the water, and heated again for regeneration, so as to achieve the purpose of purification.

The above methods have their own advantages and disadvantages, and the specific application needs to choose the most suitable treatment method according to the characteristics of the exhaust gas, the treatment effect and the cost.

Hello. Organic waste gas treatment is also very simple and cumbersome. First of all, you want to tell you about the composition of your exhaust gases. If you don't know the ingredients, you can tell me how the exhaust gas is generated. (How does the exhaust gas come from).

There are also local environmental protection requirements for waste gas treatment or in accordance with the national standard.

Different regions have different requirements for treating the same exhaust gas.

To put it simply, there is a big difference between the treatment methods of painting waste gas and chemical waste gas. The treatment methods used and the processing equipment are different. It depends on the exhaust gas itself.

Hello landlord, according to the questions you raised, the following is a detailed answer for you

There are generally three ways to deal with organic waste gas:

Combustion treatment method

The process of eliminating organic waste gas, vapor or smoke by combustion method and turning it into harmless substances is called combustion purification, and the chemical action that occurs during combustion purification is high.

It is the oxidation of combustion and thermal decomposition at high temperatures. As a result of the combustion and oxidation of organic gaseous pollutants, CO2 and H2O are generated. In organic waste gas treatment, combustion purification methods are divided into direct combustion and thermal combustion.

Activated carbon adsorption treatment

This waste gas treatment method uses the micropores inside the activated carbon to concentrate one or several components in the organic waste gas on the solid surface, so as to separate it from other components. For volatility.

Activated carbon adsorption is a cost-effective process with high adsorption efficiency and a wide range of adaptation.

Catalytic combustion treatment

Catalytic combustion is a typical gas-solid catalytic reaction, and its essence is reactive oxygen species.

Involved in deep oxidation. In catalytic combustion, the role of the catalyst is to reduce the activation energy.

At the same time, the surface of the catalyst has an adsorption effect, which enriches the reactant molecules on the surface and improves the reaction rate.

Accelerated reaction of the feed mold line. With the help of catalysts, the organic waste gas can be burned without flame at a low ignition temperature, and oxidized and decomposed into CO2 and H2O, while releasing a large amount of heat energy.

Hope it helps! This time is only for the reference of the sluggish state, and the specific situation shall prevail.

There are many kinds of organic waste gas pollutants with different characteristics, so the corresponding treatment methods are also different, commonly used: condensation method, absorption method, adsorption method, biological method, catalytic oxidation method, etc.; In recent years, some new process technologies have also been developed by foreign countries: biological method, fiber spine sensitive low-temperature plasma method, etc., and the following is a brief comparison of each process.

1 Condensation.

It is to directly introduce the exhaust gas into the condenser for condensation, and the condensate field liquid can be separated from the most valuable organic matter. The use of condensation method requires a high concentration of organic matter in the exhaust gas, and the general organic matter concentration should reach tens of thousands or even hundreds of thousands of ppm, which is not applicable to low-concentration organic waste gas.

2 Absorption method.

The absorption method can be divided into chemical absorption and physical absorption, and most organic waste gases should not be chemically absorbed. Physical absorption requires that the absorbent should have a high affinity with the absorption component, low volatility, and reuse after analysis or distillation after saturation of the absorption solution. This method is suitable for medium and high concentration of waste gas, but it is also difficult to choose a cheap and efficient low volatile absorption liquid, and the problem of secondary pollution is difficult to solve simultaneously, and the purification effect is not ideal.

3 Adsorption method.

Through the adsorption of organic waste gas, the purification rate of more than 90% and 95% can be achieved, and the equipment is simple and the investment is small. This method can use hot air, water vapor, etc. to regenerate the adsorption saturated adsorption materials, which can be recycled and recycled, so as to achieve the purposes of energy saving, consumption reduction, environmental protection and economy.

4 Biological law.

This method is developed based on mature biological sewage treatment technology, which has the characteristics of low energy consumption and low operating cost, and has a certain scale of application in foreign countries. The disadvantage is that the contaminants need to have sufficient residence time during mass transfer and digestion, which increases the footprint of the equipment, and because the microorganisms have certain impact load resistance limits, it increases the control of the entire treatment system when it is stopped. At present, this method has a small number of applications in the waste gas treatment of domestic sewage stations, and has little application in industrial waste gas treatment.

5 Regenerative oxidation.

The method is to use the heat released by the combustion of natural gas or fuel oil to heat the mixed gas to a certain temperature of 760-820, and stay for a certain time (seconds), so that the combustible harmful substances are decomposed into harmless substances at high temperature. The characteristics of this method: the process is simple, the removal rate is high, and the heat of the heat storage material can reach 90 to 95%, and the operating cost is less, especially for some complex components.

Hello landlord, according to the questions you raised, the following will be answered in detail for you:

According to the principle of VOCs organic waste gas generation in the atmosphere and the physical and chemical properties of VOCs organic waste gas, its control technology can be divided into two categories, process control and terminal control.

Process controlIt is aimed at the production process of VOCs, and reduces the generation of VOCs from the principle of VOCs, which is generally achieved through process improvement, technological transformation and leakage control.

End controlAccording to the chemical characteristics of VOCs, it focuses on the treatment of VOCs waste gas, and uses combustion, decomposition and other methods to control the emission of VOCs.

Thermal destruction method

Thermal destruction method refers to the direct and auxiliary combustion of organic gases, that is, VOCs, or the use of suitable catalysts to accelerate the chemical reaction of VOCs, and finally achieve a reduction in the concentration of organic matter, so that it is no longer harmful. 、

Adsorption method

The adsorption method in organic waste gas is mainly suitable for low-concentration and high-flux organic waste gas. At this stage, the treatment method of this organic waste gas has been quite mature, the energy consumption is relatively small, but the treatment efficiency is very high, and it can completely purify the harmful organic waste gas.

Oxidation

Oxidation method is the most suitable treatment technology and method for toxic, harmful, and does not require the best VOCs. The basic principle of the oxidation method: VOC and O2 oxidize to form CO2 and H2O, which is similar to the chemical combustion process, but due to the low VOC concentration, there will be no visible flame in the chemical reaction.

Condensation method

At different temperatures, the saturation of organic substances is different, and the condensation method uses the characteristics of organic matter to play a role, and extracts the organic substances in the steam environment by condensation by reducing or increasing the system pressure.

Organic waste gas disposal is rightleder refers to the disposal of conductive, filter, and purification of organic waste gas generated in the industrial production process. Generally, organic waste gas disposal includes formaldehyde organic waste gas disposal, benzene, toluene, xylene and other benzene organic waste gas disposal, acetone butanone organic waste gas disposal, ethyl acetate waste gas disposal, oil mist organic waste gas disposal, furfural organic waste gas disposal, styrene, acrylic acid organic waste gas disposal, resin organic waste gas disposal, additive organic waste gas disposal, paint mist organic waste gas disposal, Tiannashui organic waste gas disposal and other organic matter air purification and disposal.

Organic waste gas generally does not have the characteristics of flammable and explosive, highly toxic hazards, no aqueous solution water, aqueous solution organic solvent, and difficult disposal. In the disposal of organic waste gas, various principles such as organic waste gas activated carbon conductive disposal method, catalyst spontaneous combustion method, catalyst hydrolysis method, acid-base neutralization method, plasma method and so on are widely used. Generally, it is recommended for the plasma method, because the low-temperature plasma method has the characteristics of high removal efficiency and easy use.

The best organic waste gas disposal method is the catalyst hydrolysis purification system, and the waste gas disposal design is thorough, and the filter exhaust gas is purified layer by layer, and the effect is better.

If you are looking for waste gas treatment, I recommend finding a manufacturer with rich professional experience, because this can reduce your time and cost, and can give you a lot of suggestions on how to solve the waste gas and meet the emission standards.

At present, the state control environment is quite strict, and fines of hundreds of thousands or millions are imposed at every turn, so environmental issues are extremely important.

Personal suggestion: In this regard, I suggest you look for manufacturers in the Kunshan area, Aunason Environmental Protection Company focuses on waste gas treatment and provides one-stop solutions, you can consider it.

There are mainly three methods: thermal destruction method, adsorption method, condensation method, it is very important to find the manufacturer, Shuangni is doing better, 19 years of experience in the treatment of industrial waste gas, dust odor and other industrial pollutants,

Organic waste gas treatment can choose spray tower, activated carbon adsorption tower, UV photolysis purifier, plasma purifier, catalytic combustion equipment, which is a common Wanchuan environmental protection waste gas treatment equipment, corresponding to different waste gas needs to use a variety of processes for treatment.

Organic and inorganic waste gases differ in treatment methods. Here's how to deal with each of them:

Organic Waste Gas Treatment:

1) Absorption method: the use of absorbent to absorb organic matter in the exhaust gas, common absorbents are water, sodium chloride, styrene, etc., often used to treat low concentration of organic waste gas.

2) Activated carbon adsorption method: the use of activated carbon to adsorb organic waste gas, generally suitable for low-concentration organic waste gas treatment, and activated carbon can be recycled.

3) Combustion method: Combustion of organic waste gas into harmless substances such as carbon dioxide and water, suitable for high-concentration organic waste gas treatment, but requires a lot of energy.

4) Biological treatment method: the use of microorganisms to decompose organic waste gas into harmless substances, suitable for low-concentration organic waste gas and small treatment devices.

Inorganic Waste Gas Treatment:

1) Absorption method: use absorbent to absorb inorganic substances in the exhaust gas, commonly used absorbent is water, lye, etc.

2) Catalytic oxidation method: the catalyst is used to oxidize the inorganic substances in the exhaust gas into harmless substances, which is suitable for the treatment of low-concentration inorganic waste gas.

3) Adsorption method: the adsorbent is used to adsorb and remove the inorganic matter in the exhaust gas, and the common adsorbents are activated carbon, molecular sieve, etc.

4) Membrane separation method: The membrane separation technology is used to separate the inorganic substances in the exhaust gas, which is suitable for the treatment of low-concentration inorganic waste gas.

It is necessary to make rough preparations according to the specific composition, concentration, treatment effect requirements and other factors of the exhaust gas, and choose the appropriate treatment method. At the same time, waste gas treatment needs to consider factors such as equipment reliability, energy consumption, and convenient operation, and comprehensively select the best treatment plan.

Hello landlord, according to the questions you raised, the following will be answered in detail for you:

Organic waste gas should be disposed of by formaldehyde, xylene, acetone, butanone, acetic acid, ethyl ester and other waste gases. Organic waste gas is usually flammable, explosive, toxic and harmful, insoluble in water, soluble in organic solvents, and difficult to dispose of. The inorganic exhaust gas should contain the exhaust gas of inorganic pollutants.

The scientific name of organic waste gas is called volatile organic compound VOCs, which usually refers to an organic waste gas that exists in the air in the form of steam at room temperature. Organic waste gas includes the gas produced by the daily photosynthesis of plants and the waste gas produced in the process of human production and manufacturing. Organic waste gases like aromatics, halogens, alkanes, alkenes, aldehydes, ketones, and esters are relatively common.

If the VOCs organic waste gas is not treated, it will not only endanger human health, but also harm the earth's environment, such as destroying our atmosphere, causing excessive standards, excessive ozone and so on.

Inorganic waste gas is divided into organic waste gas, inorganic waste gas and dusty waste gas according to its nature. Inorganic exhaust gases mainly include sulfur oxides, nitrogen oxides, carbon oxides, halogens and their compounds. Inorganic waste gas should contain inorganic pollutants from nitrogen fertilizer, phosphate fertilizer (containing sulfuric acid), inorganic salts, H2S, jujube wheel NOX, dusty waste gas such as oxidation dust in the process of various metal exercises, stone dust in the process of ore processing, etc.

The difficulty of governance is different

Organic waste gas generally has a variety of unfavorable factors such as flammable, explosive, toxic and harmful, and most of the organic waste gas is insoluble in water and organic solvents, while inorganic waste gas basically does not have these problems, so compared with inorganic waste gas treatment, organic waste gas treatment is more difficult, so more consideration of safety factors in the process of treatment.

Governance is different

When carrying out organic waste gas treatment, according to the type of organic pollutants and their concentration, the exhaust temperature and discharge flow rate of organic waste gas, the content of particulate matter and the level of pollutant control that needs to be achieved, and other factors, the treatment methods are also different, the current condensation method, adsorption method, absorption method, catalytic combustion method, etc., and the first j is molecular sieve technology. However, inorganic waste gas treatment is generally done by spraying and washing.

The degree of reuse varies

Many adsorbent materials in the organic waste gas treatment method can be reused, such as activated carbon fiber and molecular sieve crystals, and the adsorbed organic gas can be decomposed through the regeneration function after the adsorbate reaches saturation, so that the adsorbate can be regenerated and can be recycled. However, there is no recycling in inorganic waste gas treatment.

Hope it helps!