BOD ( Biological Oxygen Demand) is a measure of the total amount of oxygen, which will
be taken up by the chemical and organic matter in the effluent.
> This is usually associated with a specific period and that normally taken is 5 days period.
> The value is written as BOD5, and is determined by incubating one litre sample of sewage at 20oC diluted in sufficiently well oxygenated water.
> The amount of oxygen absorbed over the 5 days period is measured.
> This is usually associated with a specific period and that normally taken is 5 days period.
> The value is written as BOD5, and is determined by incubating one litre sample of sewage at 20oC diluted in sufficiently well oxygenated water.
> The amount of oxygen absorbed over the 5 days period is measured.