Question

What are the differences between BOD and Theoretical Oxygen Demand (ThOD)?

1) BOD measures the amount of oxygen consumed by microorganisms in the water, while ThOD measures the maximum amount of oxygen that can be consumed by the organic matter in the water.
2) BOD is a measure of the organic pollution in the water, while ThOD is a measure of the total oxygen demand in the water.
3) BOD is a biological test, while ThOD is a chemical test.
4) BOD is measured over a specific period of time, while ThOD is a theoretical calculation.

Answer 1

1. BOD measures the oxygen consumed by microorganisms, indicating organic pollution, while ThOD calculates the maximum oxygen demand of organic matter in water.

Step-by-step explanation:

1. BOD (Biochemical Oxygen Demand) is a measure of the amount of oxygen consumed by microorganisms in water, indicating the level of organic pollution. On the other hand, Theoretical Oxygen Demand (ThOD) measures the maximum amount of oxygen that can be consumed by the organic matter in water, providing a measure of the total oxygen demand.

BOD is a biological test that measures the oxygen consumed over a specific period of time, while ThOD is a theoretical calculation based on the chemical composition of the organic matter.

Overall, BOD focuses on the oxygen consumed by microorganisms, reflecting the organic pollution, while ThOD represents the maximum oxygen demand of the organic matter present in the water.