Biochem Flashcards
1
Q
a measure of the amount of O2 needed by
microorganism to decompose biodegradable organics
at a specified time (5d), temperature (20C)
and pH (7) .
A
BOD
2
Q
actual quantity of Free O2 present in water.
5.8 mg/L O2
A
Dissolved oxygen
3
Q
a measure of the amount of O2 needed to oxidize
completely an organic matter whose Chemical formula
is KNOWn
A
Theoretical Oxygen Demand
4
Q
a measure of the amount of O2 needed to
oxidize organics using strong oxidizing agents
(KMNO4 or K2Cr2O7) in acid Media .
A
Chemical oxygen demand
5
Q
sum of all polyvalent cations (in consistent units)
A
Water hardness
6
Q
A
