What is the term for the gas transfer process used in water treatment to dissolve air into water?

What is the term for the gas transfer process used in water treatment to dissolve air into water?

• A. Aeration
• B. Filtration
• C. Precipitation
• D. Chlorination

Answer: (A)

The gas transfer process used in water treatment to dissolve air into water is called aeration. This method involves introducing air into the water, which allows gases, particularly oxygen, to dissolve. Aeration is an essential step in water treatment as it helps improve water quality by promoting the oxidation of dissolved metals and reducing harmful substances. It is particularly effective in removing volatile compounds and can enhance the effectiveness of other water treatment processes, such as filtration and disinfection. Filtration, on the other hand, refers to removing solid particulates from water but does not involve the transfer of gases. Precipitation involves the formation of solid particles from dissolved substances when conditions change, such as pH or concentration, and is not focused on gas transfer. Chlorination is a disinfection method that uses chlorine to kill bacteria and other microorganisms but does not involve the addition of air to the water. Therefore, the appropriate term for the process of dissolving air into water in treatment is indeed aeration.

The gas transfer process used in water treatment to dissolve air into water is called aeration. This method involves introducing air into the water, which allows gases, particularly oxygen, to dissolve. Aeration is an essential step in water treatment as it helps improve water quality by promoting the oxidation of dissolved metals and reducing harmful substances. It is particularly effective in removing volatile compounds and can enhance the effectiveness of other water treatment processes, such as filtration and disinfection.

Filtration, on the other hand, refers to removing solid particulates from water but does not involve the transfer of gases. Precipitation involves the formation of solid particles from dissolved substances when conditions change, such as pH or concentration, and is not focused on gas transfer. Chlorination is a disinfection method that uses chlorine to kill bacteria and other microorganisms but does not involve the addition of air to the water. Therefore, the appropriate term for the process of dissolving air into water in treatment is indeed aeration.