How to purify and treat industrial waste gas with industrial water? Come on, everybody, 3Q.

How to purify and treat industrial waste gas with industrial water? Please, 3Q, first of all, make sure whether the industrial waste gas you want to treat can be dissolved in water, otherwise it will be useless. Secondly, industrial waste gas generally does not go through water treatment and will not meet the national emission standards. It is very troublesome for the Environmental Protection Bureau to check it! If you have any questions, please contact me.

Industrial waste gas treatment, industrial waste gas purification, how to deal with welding fume adsorption purification principle and process flow

1, adsorption:

The organic waste gas is filtered to remove solid particles and enters the adsorption tank from top to bottom. Organic matter is captured, adsorbed and concentrated by activated carbon, and the purified air is discharged into the atmosphere from the lower part of the tank through the main fan.

2. Desorption

When the adsorption of organic matter by activated carbon reaches saturation, the inhalation of organic waste gas is stopped. Steam is blown upward through the activated carbon bed, and organic matter is discharged from the activated carbon, that is, desorbed. The activated carbon in the tank restores its activity, that is, regeneration.

3. Hot air drying and cooling:

After steam desorption, about 80 ~ 90% of steam condensate remains in the activated carbon layer, which fills the internal pores of the activated carbon, thus reducing the activity of the activated carbon layer. Therefore, hot air is introduced to dry the carbon layer. Then, the steam valve is closed, normal temperature air is introduced, and it is cooled to about 25℃, and the activated carbon is recovered and recycled as before.

4. Recovery of organic solvents:

Taking advantage of the high dew point temperature of organic solvent, the mixture of steam and organic solvent is introduced into the condenser for condensation, and the condensate enters the separator through the trap, and the solvent lighter than water is used for separation and recovery.

5, condensate purification:

In order to ensure the cleanliness of the condensed water and prevent the condensed water of organic solvent from being discharged into the water body, compressed air is introduced into the separated water of the separator to fully release the organic solvent in the water. The air containing organic matter discharged by compressed air returns to the waste gas system and is re-absorbed. The purified condensed water is discharged into the sewer.

6, continuous adsorption measures:

In a factory with continuous production, the adsorption system also needs to work continuously. In the design of waste gas purification system, double tanks can be selected in series, so that adsorption and regeneration can be used alternately and continuously.

7, regeneration cycle:

The regeneration period should be determined according to the concentration of harmful gases in the purified waste gas. When the concentration of harmful gas is close to the standard value, the adsorption should be stopped and regeneration should be carried out. In the initial working stage of the auxiliary system, the concentration of harmful gas at the outlet should be determined in time in order to master the reasonable adsorption and regeneration cycle.

How to treat industrial waste gas purification? The better environmental protection equipment for industrial waste gas treatment and dust removal is the washing tower. Combustion method. This method, also known as thermal oxidation and thermal combustion, is mainly used to purify high-concentration VOCs waste gas. At present, the main methods to treat organic waste gas are adsorption, catalytic combustion, activated carbon adsorption+catalytic combustion and so on. Considering the feasibility of the method, operation cost, equipment investment cost and secondary pollution, an appropriate treatment method should be selected.

What industrial waste gas is mainly treated by industrial waste gas purification equipment? The purification of organic waste gas mainly includes various hydrocarbons, aromatic hydrocarbons, alcohols, aldehydes, acids, ketones and amines. Inorganic waste gas purification mainly includes sulfur oxides, nitrogen oxides, carbon oxides, halogens and their compounds;

1. Waste gas purification in spraying workshop, baking workshop and painting workshop: benzene waste gas treatment, toluene waste gas treatment, xylene waste gas treatment, TVOC waste gas treatment, paint mist particles, etc.

2. Purification of air waste gas in perfume workshop, cosmetics workshop and food workshop: methyl methacrylate, ethyl acetate, ethyl acetoacetate, aldehydes, ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide, etc.

3. Purification of air waste gas in petrochemical plants: sulfur dioxide, nitrogen oxides, soot, benzopyrene, non-methane total hydrocarbons, hydrogen sulfide, volatile phenol, amines, hydrocarbons, benzene, acrylonitrile, cyclohexane, ammonia, ethylene, styrene, butadiene, propylene, vinyl chloride, etc.

4. Waste gas treatment of steel mills and steel mills: sulfur dioxide, carbon dioxide, carbon monoxide, hydrogen fluoride, some volatile organic compounds, smoke and dust;

5. Purification of air waste gas in printing workshop: benzene waste gas treatment, toluene waste gas treatment and xylene waste gas treatment; Butyl acetate, non-methane total hydrocarbons, etc. ;

6. Purification of biopharmaceutical waste gas and chemical plant waste gas: recruitment of amines, sulfides, acid-base waste gas, ethylene glycol and volatile organic solvents in Anhui universities;

7. Waste gas purification in welding workshop: welding dust, particulate matter, benzene organic matter, nitrogen oxides, ozone, etc. Such as carbon monoxide, carbon dioxide and sulfur dioxide;

8. Waste gas purification of furniture factory: benzene waste gas treatment, toluene waste gas treatment, xylene waste gas treatment, formaldehyde and other Anhui rural credit cooperative examinations;

9. Power plant waste gas purification: sulfur dioxide, nitrogen dioxide, carbon monoxide, unburned hydrocarbons, soot particles, dust, etc.

10, waste gas purification of rubber factory: organic sulfide, benzene waste gas treatment, toluene waste gas treatment, xylene waste gas treatment, organic gas containing toxic and harmful components such as phosphorus, phenol and ketone, alkanes, industrial dust, etc. ; 1 1. Waste gas purification in cement plant: sulfur dioxide, nitrogen oxides, carbon dioxide, hydrofluoric acid, dust, etc.

What gases are mainly purified by industrial waste gas treatment? Organic waste gas and inorganic waste gas. . .

Organic waste gas: mainly malodorous gases such as formaldehyde, xylene, acetone, butanone, acetic acid and ethyl ester. Organic waste gas is generally flammable and explosive, toxic and harmful, insoluble in water, soluble in organic solvents, and difficult to treat. At present, the main treatment methods are thermal damage method, condensation method and absorption method.

Inorganic waste gas: Inorganic waste gas mainly contains inorganic pollutants, which can be roughly divided into acidic gas and alkaline gas. At present, the mainstream treatment method is neutralization.

How to deal with industrial waste gas? Industrial waste gas can be treated by deep sub-energy waste gas treatment equipment. High purification efficiency, automatic cleaning without manual maintenance. Greatly improve the air in the workshop.

According to our previous project experience in Chutian, the waste gas produced by the paper mill contains sulfur-containing compounds such as H2S, CH3SH, CH3SCH3 and CH3SCH3, which can be solved by biological deodorization technology, and the specific process selection needs more data to determine. I hope I can help you!

Industrial waste gas can be deeply treated by sub-energy industrial waste gas, with a purification rate of 99%, automatic cleaning and maintenance-free.

Industrial waste gas purification company's industrial waste gas purification mainly refers to the treatment, purification and discharge of industrial waste gas. Industrial waste gas purification includes organic waste gas purification, inorganic waste gas purification and industrial waste gas odor purification treatment.

Selection factors of industrial waste gas purification company: look at the brand of industrial waste gas purification company. This is very important! For example, Shanghai Anjule Environmental Protection Technology Co., Ltd. has undertaken the purification of rowing coating exhaust gas in the 2008 Beijing Olympic Games and the purification of industrial exhaust gas in the 20 10 Shanghai World Expo, which is an Olympic quality and Expo brand. It is a well-known brand in China industrial waste gas purification industry.

Industrial waste gas purification companies should look at successful cases. It's better to know whether the world's top 500 or representative enterprises in the industry have adopted exhaust gas purification companies, which is more reliable.

Some successful cases of Anjule industrial waste gas purification and environmental protection include: Siemens coating waste gas purification in the world's top 500, LG welding fume waste gas purification in the world's top 500, waste gas purification in Asahi glass factory in the world, environmental protection equipment for desulfurization and deodorization in Sinopec in the world, environmental protection equipment for industrial waste gas purification in COFCO workshop in the world's top 500, environmental protection equipment for industrial waste gas purification in Foxconn printing house in the world's top 500, Mitsubishi Heavy Industries, Wuliangye Group Printing House in the world's top 500, BYD Auto Industry and SAIC-GM.

Shanghai Anjule Environmental Protection Technology Co., Ltd. is the only company reported by China CCTV to purify the paint exhaust of electric vehicles. Olympic brand, trustworthy!

Before industrial waste gas treatment, organic waste gas treatment in China mainly

The methods to be adopted include condensation recovery, liquid absorption, membrane separation, direct combustion and catalytic combustion.

, adsorption method, adsorption-catalytic combustion method and other principles.

1, condensation recovery method

Mechanism introduction:

The condensation method adopts multistage continuous cooling mode, so that the temperature of hydrocarbon components in mixed oil and gas is lower than that of condensation.

The point changes from gas to liquid, and the air is gas except water vapor, which realizes the separation of oil, gas and air.

From this, valuable organic matter can be recovered.

Advantages and disadvantages:

Its key components, compressor and throttle mechanism, have been produced locally, with low investment and operating costs.

; The parallel cutting equipment is simple, with high degree of automation, convenient maintenance and good safety, and the output is liquid oil.

Wait a minute. However, auxiliary refrigeration equipment is needed, and the system flow is relatively complicated.

Applicable conditions:

Organic waste gas with high concentration, low temperature and small air volume is an organic matter with recycling value.

2. Liquid absorption method

Mechanism introduction:

The liquid absorption method uses the similar compatibility principle between liquid absorption liquid and organic waste gas. Generally enhance absorption.

Results The mixed solution of liquid petroleum, surfactant and water was used as the absorption solution. waste gas

The absorption liquid is introduced for purification. After the absorption liquid is saturated, it can be recycled through heating, analysis and condensation.