In the current era of rapid technological development, various laboratories have emerged in large numbers and have become the forefront of innovation and exploration. However, many experimental operations in laboratories are often accompanied by the generation of hazardous gases. If not properly handled, these gases will not only threaten the health of laboratory personnel but also cause pollution to the surrounding environment. As Guangzhou Kunling Purification Equipment Co., Ltd., which specializes in the purification field, today we will have an in-depth discussion with you on the effective treatment methods for hazardous gases in laboratory purification projects.

The adsorption method is a powerful approach for dealing with hazardous gases in laboratories. The key lies in the selection of appropriate adsorbents. Activated carbon is the most common and practical "adsorption expert". It has a complex and porous microstructure inside, just like a maze full of "traps". Once volatile organic compounds (VOCs) such as formaldehyde and benzene approach, they will be firmly "captured" and trapped in the pores. In chemical analysis laboratories where organic solvents are frequently used and harmful gases are volatilized everywhere, installing sufficient activated carbon adsorption devices can effectively purify the air. Molecular sieves also have the advantage of "precisely intercepting" hazardous gases of specific molecular sizes due to their regular and uniform pore sizes. For example, they can accurately adsorb small-molecule alkaline gases like ammonia, restoring the laboratory air to a fresh and non-toxic state. Regular replacement or regeneration of adsorbents is the key to maintaining adsorption efficiency. Methods such as high-temperature desorption can be used to make activated carbon and molecular sieves "rejuvenate" and continuously safeguard the laboratory environment.

This method cleverly uses chemical reactions to "tame" hazardous gases. For acidic gases such as hydrogen chloride and sulfur dioxide, scrubbing towers spraying sodium hydroxide solution are their "nemeses". The gases rise from the bottom and pass through the spraying area, fully contacting the fine misty alkaline liquid. Instantly, acid-base neutralization reactions occur, and the acidic gases are converted into harmless salts that dissolve in water and are discharged from the bottom of the tower, while the purified air escapes from the top of the tower. In scientific research environments where sulfide experiments are carried out, such scrubbing towers can build a solid "defense line". For alkaline hazardous gases like ammonia, sulfuric acid solution spraying systems play an important role. Based on the principle of neutralization reaction, ammonia is firmly locked up and the pollution risk is eliminated. The absorption liquid needs to be properly prepared and replaced regularly according to the composition and concentration of the gases to ensure that the reactions continue to be efficient. Additionally, demisting devices can be installed to avoid the impact of water vapor entrainment on the subsequent air quality.

For combustible hazardous gases, the combustion method can achieve deep purification. Direct combustion is suitable for high-concentration and high-calorific-value waste gases. For example, in chemical laboratories with high concentrations of organic waste gases, the waste gases are introduced into a combustion furnace. Under sufficient oxygen and high-temperature conditions, the harmful combustible gases are completely burned and turned into harmless substances such as carbon dioxide and water. The released heat energy can also be reused. Catalytic combustion is more "ingenious". With the help of catalysts such as precious metals (e.g., platinum, palladium), the reaction temperature is reduced, allowing waste gases that originally required high temperatures to be efficiently oxidized and decomposed under relatively mild conditions. It is energy-saving, environmentally friendly, and achieves thorough purification while reducing the generation of secondary pollutants such as nitrogen oxides. It is suitable for laboratory waste gas conditions with complex compositions and fluctuating concentrations, ensuring that laboratory waste gases are discharged up to standard.

Special filter materials can specifically block hazardous gases. High-efficiency glass fiber filter paper provides a strict defense against fine particles and aerosol harmful substances. In biosafety laboratories, it prevents the escape of bacteria, viruses and their aerosols. Gas masks with filter cartridges are equipped with composite components such as activated carbon and chemical impregnating agents. They are customized according to different toxic gases (such as chlorine gas, formaldehyde, etc.) generated in laboratories. When gases pass through the filter cartridges, they are intercepted and purified through multiple processes such as physical adsorption and chemical absorption. When combined with respiratory protection equipment or ventilation purification systems, they become a solid shield for protecting the respiratory health of laboratory personnel and purifying the indoor air.

Plasma generators are used to create high-energy plasma fields. Under the action of a strong electric field, gases are ionized to produce active particles such as electrons, ions, and free radicals. These active particles are like "little cleaning guards". When they collide with hazardous gases, they can break chemical bonds and decompose complex pollutant molecules. For example, they can decompose difficult-to-treat volatile organic compounds in laboratories. They can also sterilize and disinfect, and are widely used in microbiology and pharmaceutical laboratories. This method reduces the amount of harmful substances and their toxicity from the source, creating a safe and clean "breathing zone" for laboratories with innovative technology.

The treatment of hazardous gases in laboratory purification projects is a systematic and rigorous "combination punch". It is necessary to flexibly select methods and match equipment based on factors such as gas types, concentrations, and working conditions. Guangzhou Kunling Purification Equipment Co., Ltd., relying on its profound technological accumulation and rich project experience, can customize hazardous gas treatment solutions for various laboratories. With professionalism, we escort laboratory scientific research and exploration to move forward without pollution, helping scientific researchers focus on breakthroughs and innovations with peace of mind and laying a solid environmental foundation for the vigorous development of the scientific and technological cause. If you are troubled by the problem of treating hazardous gases in laboratories, please feel free to consult and cooperate with us!