What does aeration in water treatment aim to increase?

Aeration in water treatment primarily aims to increase the contact between air and water. This process facilitates the exchange of gases, allowing for the removal of dissolved gases such as carbon dioxide and hydrogen sulfide. It also helps in enhancing the oxygen levels in the water, which is essential for the survival of aerobic microorganisms that play a crucial role in the breakdown of organic pollutants. Moreover, improved oxygenation promotes oxidation reactions that can help in the removal of certain contaminants.

When aeration is effectively performed, it leads to improved water quality, especially by elevating the biological processes taking place in the treatment system. This is particularly important in processes like activated sludge systems, where the microbial health is directly dependent on adequate aeration for efficient organic matter decomposition. Thus, the significance of increasing the contact between air and water through aeration cannot be overstated in achieving effective water treatment outcomes.