Question

The amount of oxygen used by bacteria to breakdown organic matter is known as

Answer 1

Answer:

The amount of oxygen used by bacteria to breakdown organic matter is known as Biological Oxygen Demand( BOD).

Explanation:

It is the amount of dissolved oxygen used by aerobic microorganisms to breakdown organic matter present in a given water sample.

It is represented in milligrams of oxygen consumed per litre of the sample water at 20°C during 5 days of incubation.

It is a parameter which is checked for testing the effectiveness of wastewater treatment plants.

Answer 2

Answer:

The amount of oxygen used by bacteria to breakdown organic matter is known as the biochemical oxygen demand.

• During this process, the organic matters are broken down their original form by the bacteria using oxygen.
• It also depends on the levels of moisture present in the surrounding atmosphere.
• At the beginning the process is aerobic but gradually changes to anaerobic.