Organic waste gas treatment plan
Author: Li Deng environmental protection
Common TVOCs include; acetic acid, benzene, toluene, xylene, methyl ethyl ketone, isopropanol, ethyl acetate, and the like. Volatile organic compounds, which can cause respiratory diseases and lung diseases; long-term exposure to this environment can cause great harm to the health of the individual and the natural environment. It has a great impact on the respiratory system and cardiovascular environment. The substance stimulates the eyes and the respiratory tract. Concentration exposure may cause central nervous system depression. Effects of long-term or repeated exposure: Liquids degrease the skin. Plus in the confined space, inhale an unpleasant smell. When the concentration reaches 1000 ppm, the eyes, nose and throat will be irritated before it has an effect on the central nervous system. A large number of total volatile organic compounds (TVOCs) are continuously produced, etc., and in the long-term environment, it will bring great harm to the individual's physical health and the natural environment, and at the same time reduce work efficiency.
Lideng Environmental Technology EDDA AIR - Applied physics, chemistry, biology and environmental engineering knowledge, created a plasma air purification technology, successfully achieved Einstein's ionization theory. By simulating the natural air environment, the indoor air quality is significantly improved, and various harmful pollutants are effectively and quickly removed and decomposed. This is our belief that "the forest-like air can be enjoyed at home." Our technology solves many traditional problems such as activated carbon, photoion generators, ozone generators, high voltage static electricity, and photocatalysts. Our plasma air purification technology can effectively reduce dust in the air, neutralize and decompose pollutants in the air, disinfect bacteria, effectively control volatile organic compounds, and clean the air effectively!
At present, the treatment methods of organic waste gas treatment mainly have the following points:
1. Condensation recovery method: the organic waste gas is directly introduced into the condenser, which is adsorbed, absorbed, decomposed and separated, and can recover valuable organic matter. The method is suitable for working conditions with high organic waste gas concentration, low temperature and small air volume, and requires auxiliary refrigeration equipment. It is mainly used in the pharmaceutical and chemical industries, and is rarely used by printing companies.
2. Adsorption method:
(1) Direct adsorption method: The organic waste gas is adsorbed by activated carbon, and the purification rate can reach more than 95%. The equipment is simple and the investment is small, but the activated carbon is frequently replaced, and the working procedures such as loading, unloading, transportation and replacement are increased, resulting in an increase in operating costs.
(2) Adsorption-recovery method: The organic waste gas is adsorbed by the fibrous activated carbon, and is degassed by backflushing with superheated steam after being nearly saturated; this method requires providing the necessary amount of steam.
(3) Adsorption-catalytic combustion method: This method combines the advantages of adsorption method and catalytic combustion method, adopts new adsorption material (cellular activated carbon) adsorption, introduces hot air after drinking and after desorption, analysis and desorption. The exhaust gas is introduced into the catalytic combustion bed for flameless combustion, which is thoroughly purified, and the hot gas is recycled in the system, thereby greatly reducing energy consumption. The method has the characteristics of stable and reliable operation, low investment, low operating cost and convenient maintenance. It is suitable for the treatment of high air volume and low concentration of exhaust gas. It is a mature and practical method for domestic treatment of organic waste gas.
3. Direct combustion method: using auxiliary fuel such as gas or fuel to burn, heating the mixed gas to decompose harmful substances into harmless substances under high temperature; this method is simple in process and small in investment, and is suitable for high concentration and small air volume exhaust gas, but High requirements for safety technology and operation.
4. Catalytic combustion method: the waste gas is heated and converted into harmless and odorless carbon dioxide and water by catalytic combustion; the method has low ignition temperature, high energy saving, high purification rate, convenient operation, small floor space, large investment investment, and is suitable for high temperature. Or high concentration of organic waste gas.
5. Absorption method: generally adopts physical absorption, that is, the exhaust gas is introduced into the absorption liquid for purification, and the absorption liquid is saturated, and then heated, analyzed, and condensed and recovered; the method is applicable to the atmospheric quantity, low temperature, low concentration of exhaust gas, but needs to be equipped with heating analysis and recovery. The device is large in size and high in investment.
6. Nano-micro-electrolysis oxidation method: nano-micro-electrolysis purification technology uses nano-scale processed piezoelectric materials. Under certain humidity conditions, the micro-electrolysis electric field can be used to generate electrical adsorption of nano-micro-electrolytic materials and release a large number of hydroxyl-negative ions. The purification of aerobic contaminants in the gas not only removes most of the organic matter in the air, but also analyzes inorganic odors such as ammonia nitrogen and hydrogen sulfide.
7. Plasma air system solutions are easy to deploy, manage, and maintain, and all system implementations typically include three components:
Air Cleaner: The equipment required for air treatment is custom designed and the number of ion generators according to the amount of air, the type and concentration of pollutants, the air enters the clean box, and the movable frame and control system are designed for easy maintenance and control. Used to monitor the ionizer for proper operation. Ionized air emissions are emitted from clean tank ionized air using existing piping systems or other facilities.
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