# Biochemical Oxygen Demand Equation Calculator

Water Wastewater Sewage Treatment Formulas

## Inputs:

initial diluted seeded wastewater DO (D1)
final diluted seeded wastewater DO (D2)
initial diluted seed sample DO (B1)
final diluted seed sample DO (B2)
seed volume ratio (f)
unitless
wastewater decimal fraction (P)
unitless

## Conversions:

initial diluted seeded wastewater DO (D1)
= 0
= 0
milligram/liter
final diluted seeded wastewater DO (D2)
= 0
= 0
milligram/liter
initial diluted seed sample DO (B1)
= 0
= 0
milligram/liter
final diluted seed sample DO (B2)
= 0
= 0
milligram/liter
seed volume ratio (f)
= 0
= 0
wastewater decimal fraction (P)
= 0
= 0

## Solution:

biochemical oxygen demand (BOD)
= HAS NOT BEEN CALCULATED

## Other Units:

Change Equation
Select to solve for a different unknown
 Solve for biochemical oxygen demand Solve for ultimate biochemical oxygen demand Solve for deoxygenation rate constant Solve for time Solve for 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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By Jimmy Raymond

Contact: aj@ajdesigner.com