Laboratory waste gas treatment
Industry Introduction
Laboratory exhaust gas is special and may be highly corrosive and dangerous. Laboratory exhaust gas cannot be directly discharged, and must be effectively treated to reach dischargeable standards.
Waste gas treatment process industry characteristics
Laboratories are widely found in schools, chemical factories, pharmaceutical manufacturing, electroplating, alchemy and other fields. Laboratory exhaust gas is a variety of exhaust gas, and laboratories in different environments emit different types of exhaust gas. The emission of laboratory exhaust gas is relatively small, and the exhaust gas types are various, which cannot be purified by a single treatment method.
The laboratory exhaust gas scrubber system treats water-soluble gases such as HCL, HF, H2SO4, HCN, HaOH, and H2S. According to different gases, different adsorbents are purchased. Physical absorption of HCL, HF and other gases can achieve ideal results.
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Gas collection + Wet scrubber + Activated carbon adsorber + centrifugal fan
Brief description of the recommended treatment process:
This equipment uses a packed tower to purify the exhaust gas, which is suitable for the treatment of continuous and intermittent exhaust gas; the process is simple, the management, operation and maintenance are quite convenient and concise, and it will not cause any impact on the production of the workshop; it has a wide range of applications and can purify many at the same time. The pressure drop is low, the operation flexibility is large, and it has good defogging performance; the tower body can be made of FRP/PP/PVC and other materials according to the actual situation; the packing is made of high-efficiency, low-resistance Pall rings, which can Thoroughly remove odors and harmful substances in the gas.
Waste gas treatment process:
For the treatment of corrosive gases (such as acid and alkaline waste gas), the liquid absorption method is currently used for treatment. The key to the use of liquid absorption to treat this waste gas is the selection of purification equipment. At present, our company has independently developed acid and alkaline waste gas purification processes and equipment with high purification efficiency, simple operation and management, and long service life. The process and product have the characteristics of simple structure, low energy consumption, high purification efficiency and wide application range, and can effectively remove hydrogen chloride gas (HCl), hydrogen fluoride gas (HF), ammonia gas (NH3), sulfuric acid mist (H2SO4), chromium Acid mist (CrO3), hydrogen cyanide gas (HCN), alkali vapor (NaOH), hydrogen sulfide gas (H2S), formalin (HCHO) and other water-soluble gases. The acid mist exhaust gas is introduced into the purification tower through the air duct, and after passing through the packing layer, the exhaust gas and the sodium hydroxide absorption liquid undergo a gas-liquid two-phase full contact absorption and neutralization reaction. The fan exhausts into the atmosphere. The absorption liquid is pressurized by the water pump at the bottom of the tower and sprayed down at the top of the tower, and then returned to the bottom of the tower for recycling. The purified acid mist exhaust gas meets the emission requirements of Beijing's local emission standards and is lower than the national emission standards.