Principle of BOD Test
BOD mainly aims at calculating the dissolved oxygen levels that are consumed by microorganisms, while decomposing organic stuff. Water is usually collected from a marine body like a lake or a river. The sample is collected in a way to make sure that no air enters the sample water. The initial concentration of the dissolved oxygen is calculated. After that, the sample is kept in an incubator for 5 days at 20℃. In this period, the microorganisms decompose the organic matter in the water. The final DO (Dissolved Oxygen) is calculated after 5 days.
What is BOD Test?
The BOD test acts as an important criterion for knowing the health of an ecosystem. The BOD Test of Water is done to know how impure or pure the water body is. The BOD test procedure involves the collection of the water sample in an air-tight container which is then kept in incubation for five days at 20 ℃. The sample of water contains microorganisms that have the function of decomposing organic matter. They utilize oxygen present in the water to do so. BOD measures the amount of oxygen that gets consumed.
Table of Content
- Definition of BOD
- Objectives of BOD Testing
- Principle of BOD Test
- Calculation of BOD
- BOD Test Procedure
- BOD Test Measurement Problems
- Importance of Biochemical Oxygen Demand
- Limitations of the BOD Test
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