How to deal with the waste gas in the laboratory by the commonly used waste gas treatment methods?

1. Because the laboratory waste gas contains acid-base and vocs waste gas, it is generally necessary to remove the acid-base waste gas by acid-base neutralization in the purification tower first, and then remove the organic waste gas by photooxidation catalysis and activated carbon adsorption. Specifically, it is necessary to choose an efficient and economical waste gas treatment method according to the type, concentration and air volume of laboratory waste gas.

2. Inorganic waste gas. Mainly includes: nitrogen oxides, sulfuric acid mist, hydrogen chloride, hydrogen fluoride, hydrogen sulfide, sulfur dioxide and other inorganic waste gases.

3. Organic waste gas. It mainly includes aromatic hydrocarbons: benzene, toluene, xylene, styrene and so on. Aldehydes and ketones: formaldehyde, acetaldehyde, glutaraldehyde, butyraldehyde, acetone, cyclohexanone, methyl ethyl ketone, acetophenone, etc. Esters: isobutyl acetate, ethyl acetate, butyl acetate, methyl acetate, banana oil, etc. Alcohols: methanol, ethanol, butanol, isopropanol, ethylene glycol, etc.