Question

why is aeration of sludge important​

Answer 1

Aeration enables the bacteria to use oxygen in the breakdown of organic matter.

Explanation:

• For a standard sewage treatment plant, two types of treatment of waste water is generally required.
• The first is the primary treatment which removes the solids mixed with waste water like sand, silt, pieces of plastics, etc.
• In the secondary treatment of waste water microbes are used which eats up the organic matter dissolved in the water.
• The bacteria used in this are aerobic bacteria, and they use oxygen in the breakdown of organic matter.
• The process of aeration supplies the bacteria with oxygen which they uses for the breakdown of organic matter.
• Aeration process is one of the important processes of treatment of waste water.