BOD

Biological Oxygen Demand


Biochemical Oxygen Demand (BOD) is used in water monitoring provides as an estimate of the oxygen uptake by microorganisms during the breakdown of organic material present in a water sample. This is normally quoted in mg/L. The value for BOD will always be lower than that of COD.

It is usually measured in the laboratory under controlled conditions over a 5-day period (e.g. BOD5) and oxygen depletion compared to control. The reason for the five days is to give the Biological substance the opportunity to grow to a detectable level.

Bod in waste water and sewage treatment  is an important parameter aswell in lake.


See our BOD products
UV254 Analyzer measuring BOD (Biological Oxygen Demand) beside a lake