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Why is bod measured in 5 days gap


Sidharth 29th Mar, 2019
Answer (1)
Mayank Kukreti 29th Mar, 2019
Hello

BOD occurs in 2 general stages. While calculating the oxygen demand, the carbonaceous stage is taken into account. This stage is almost completed in 5 days, which means that most of the organic content of the sewage is oxidized under aerobic conditions in 5 days. Hence ,BOD for 5 days is calculated.

Goodluck i hope this helps you

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