Question:what is the reason for taking 5 day BOD (at 20 degree
centigrade) as the standard...
Question
what is the reason for taking 5 day BOD (at 20 degree
centigrade) as the standard...
what is the reason for taking 5 day BOD (at 20 degree
centigrade) as the standard value even though the decomposition of
the organic matter continues for more than 5 days