Biochemical Oxygen Demand Equations and Formulas Calculator

Water Wastewater Sewage Treatment


Solving For Biochemical Oxygen Demand.

Biochemical Oxygen Demand

Inputs:

ultimate BOD (L)
deoxygenation rate constant (k)
time (t)


Conversions:

ultimate BOD (L)
= 0
= 0
milligram/liter
deoxygenation rate constant (k)
= 0
= 0
day^-1
time (t)
= 0
= 0
day

Solution:

biochemical oxygen demand (BODt)
= HAS NOT BEEN CALCULATED

Other Units:


Change Equation
Select an equation to solve for a different unknown
biochemical oxygen demand Solve for biochemical oxygen demand
ultimate biochemical oxygen demand Solve for ultimate biochemical oxygen demand
deoxygenation rate constant Solve for deoxygenation rate constant
time Solve for time
seeded biochemical oxygen demand Solve for seeded biochemical oxygen demand
seeded biochemical oxygen demand Solve for seeded biochemical oxygen demand

Where
BOD = biochemical oxygen demand
L = ultimate biological demand
k = deoxygenation rate constant
t = time
D1 = initial diluted seeded wastewater dissolved oxygen
D2 = final diluted seeded wastewater dissolved oxygen
B1 = initial diluted seed sample DO
B2 = final diluted seed sample DO
f = seed volume ratio
P = wastewater decimal fraction

References - Books:
Warren Viessman, Jr, Mark J. Hammer. 1993. Water Supply and Pollution Control. Harper Collins College Publishers. 5th ed.

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