A small community is building their first water treatment plant, but has limited amounts of land and money available. One of the council members suggests reducing costs and land needs by leaving out the aeration pond. The plant supervisor explains that aeration is a necessary step in treating drinking water. What is the most important reason the town should include an aeration pond in their water treatment plant?
Aeration kills anaerobic bacteria. Aeration removes dissolved gases. Aeration oxidizes dissolved metal ions. Aeration removes some solvents and chemicals.