【Daily Question】Question from Issue 20150728
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Participation reward: 3 Wealth. Reward for correct answer: 10 wealth. The methods for purifying harmful gases include combustion, ( ), absorption, and ( ).
Combustion method, condensation method, absorption method, and adsorption method
Methods for purifying harmful gases include combustion, (condensation), absorption, and (adsorption).
Methods for purifying harmful gases include combustion, (condensation), absorption, and (adsorption).
Methods for purifying harmful gases include combustion, (condensation), absorption, and (adsorption).
Condensation method, adsorption method!!!!!!!!!!!!!
Methods for purifying harmful gases include combustion, (condensation), absorption, and (adsorption).
Methods for purifying harmful gases include combustion, (condensation), absorption, and (adsorption). Controlling harmful gases should start at the source of pollution, but this often involves high costs. Common methods for purifying harmful gases include combustion, condensation, absorption, and adsorption; the appropriate method can be chosen based on the characteristics of the harmful gases in question. (1) Combustion method: For some organic gases, this method can be used to generate harmless gases or reduce their concentration. A catalyst can be used to speed up the combustion process. (2) Condensation method: The harmful vapors generated during the production process can be separated through condensation, but this method is inefficient and is only suitable for harmful vapors with high concentrations; it is therefore rarely used. (3) Absorption method: In dust removal equipment, when wet dust removal is used, in addition to filtering out dust particles from the airflow, it also enables the dissolution of harmful gases that are soluble in water, thereby achieving a purification effect; however, the resulting wastewater must be treated. (4) Adsorption method: An air purification method that removes harmful components by passing streams of harmful gases through substances with strong adsorption capacity; it achieves a high purification rate for low-concentration harmful gases. Adsorbents are often made of materials such as activated carbon and silica gel.
Methods for purifying harmful gases include combustion, (condensation), absorption, and (adsorption).