The most important treatment for shipyard exhaust gas treatment is catalytic combustion. You can customize the equipment according to the amount of air you need. First of all, we need to examine how much exhaust gas volume, and then deal with the placement of equipment. How many meters of pipe are needed, how many elbows and so on. Be sure to examine the site first.
The following is a careful introduction to the treatment of industrial exhaust gas treatment equipment for you. Different methods for different industries of exhaust gas.
1, masking method
Principle: the use of more intense aromatic odors and odor mixed with the odor, in order to mask the odor, so that it can be accepted.
Scope of application: applicable to the need for immediate, temporary elimination of low concentrations of malodorous gases affecting the occasion, malodorous intensity of 2.5 or so, the source of unorganized emissions.
Advantages: can eliminate the impact of malodor as soon as possible, flexibility, low cost.
2, dilution and diffusion method
Principle: the odor gas is discharged to the atmosphere through the chimney, or diluted with odorless air, reduce the concentration of malodorous substances in order to reduce the odor.
Scope of application: applicable to the treatment of medium and low concentrations of organized emissions of malodorous gases.
Advantages: low cost, simple equipment.
3, thermal combustion method and catalytic combustion methodPrinciple: in the high temperature of malodorous substances and fuel gas fully mixed to achieve complete combustion
Scope of application: for the treatment of high concentration, small volume of combustible gases.
Advantages: high purification efficiency, malodorous substances are thoroughly oxidized and decomposed.
4, water absorption method
Principle: the use of odor in some substances soluble in water, so that the odor components directly contact with water, so that dissolved in water to achieve the purpose of deodorization.Scope: water-soluble, organized emission sources of malodorous gases.
Advantages: simple process, easy to manage, low operating costs of the equipment produces secondary pollution, the need to treat the washing liquid.
5, liquid absorption methodPrinciple: the use of certain substances in the odor and liquid chemical reaction properties, to remove certain odor components.
Scope of application: applicable to the treatment of atmospheric volume, high concentration of odor.
Advantages: can be targeted to deal with certain odor components, the process is more mature.
6, adsorption method
Principle: the use of adsorbent adsorption function to make the malodorous substances from the gas phase to the solid phase.
Scope of application: suitable for the treatment of low concentration, high purification requirements of malodorous gases.
Advantages: high purification efficiency, can deal with multi-component malodor gas.
7, washing activated sludge deodorization method
Principle: the malodorous substances and slurry containing suspended mud mixture full contact, so that it is removed from the odor in the absorber, the washing liquid and then sent to the reactor, through the suspended growth of microbial metabolic activity degradation of dissolved malodorous substances.
Scope of application: there is a large scope of application, can deal with atmospheric odor, while the operating conditions are easy to control, covers an area of small.
8, aeration type activated sludge deodorization method
Principle: the malodorous substances in the form of aeration dispersed into the mixture containing activated sludge, through the suspended growth of microorganisms degradation of malodorous substances applicable to a wide range.
Scope of application: Currently, it is used in Japan for odor treatment in manure treatment plants and sewage treatment plants.
Advantages: After activated sludge is domesticated, the removal rate of malodorous components that do not exceed the limit load amount can be more than 99.5%.
9, three-phase multi-media catalytic oxidation process
Principle: reaction tower filled with special solid composite filler, filler inside the compound multi-media catalyst. When the malodorous gas under the action of the induced draft fan through the packing layer, and through the special nozzle was dispersed mist sprayed liquid-phase compound oxidant in the solid-phase packing surface full contact, and in the multi-media catalyst catalytic effect, malodorous gas in the pollution factor is fully decomposed.
Scope of application: wide range of application, especially suitable for the treatment of atmospheric volume, medium and high concentration of exhaust gas, hydrophobic pollutants have a good removal rate.
Advantages: small footprint, low investment, low operating costs; easy to manage, ready to use.
10, low-temperature plasma technology
Principle: the medium blocking the discharge process, the plasma inside the generation of particles rich in very high chemical activity, such as electrons, ions, free radicals and excited state molecules. The pollutants in the exhaust gas react with these active groups with high energy and are converted into CO2 and H2O, thus achieving the purpose of purifying the exhaust gas.Scope of application: wide range of application, high purification efficiency, especially for other methods difficult to deal with multi-component malodorous gases, such as chemical, pharmaceutical and other industries.
Advantages: high electronic energy, can be almost and all the malodorous gases divided into gas box pulse bag filter common faults and solutions.