LCM calculator

Ratio of BOD to Ultimate BOD Calculator

Engineering Chemistry Financial Health More >>

↳

Civil Chemical Engineering Electrical Electronics More >>

⤿

Environmental Engineering Bridge and Suspension Cable Coastal and Ocean Engineering Columns More >>

⤿

Treatment of Sewage Conveyance of Water Design of a Chlorination System for Wastewater Disinfection Design of a Circular Settling Tank More >>

⤿

Oxygen Requirement of the Aeration Tanks Constant Velocity Horizontal Flow Grit Channels Design of Conical Humus Tank Design of Continuous Flow Type of Sedimentation Tank More >>

⤿

BOD to Ultimate BOD Important Formulas of Oxygen Requirement of the Aeration Tank BOD5 D.O Saturation More >>

✖BOD of 5 days at 20° C is an indicator of how much oxygen is utilized by a natural water sample in five days at 20° C.ⓘ BOD of 5 days at 20° C [BOD₅]			+10% -10%
✖Ultimate BOD is the amount of oxygen required to decompose all of the organic material after infinite time.ⓘ Ultimate BOD [BOD^u]			+10% -10%

✖Ratio of BOD to Ultimate BOD is the ratio of 5 days bod to ultimate bod.ⓘ Ratio of BOD to Ultimate BOD [f]

⎘ Copy

👎

Formula

✖

Ratio of BOD to Ultimate BOD

Formula

f = \frac{BOD 5}{BOD u}

Example

3 = \frac{6 mg/L}{2 mg/L}

Calculator

LaTeX

Reset

👍

Download Environmental Engineering Formula PDF PDF Image

Ratio of BOD to Ultimate BOD Solution

STEP 0: Pre-Calculation Summary

Formula Used

Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD
f = BOD₅/BOD^u
This formula uses 3 Variables

Variables Used

Ratio of BOD to Ultimate BOD - Ratio of BOD to Ultimate BOD is the ratio of 5 days bod to ultimate bod.
BOD of 5 days at 20° C - (Measured in Kilogram per Cubic Meter) - BOD of 5 days at 20° C is an indicator of how much oxygen is utilized by a natural water sample in five days at 20° C.
Ultimate BOD - (Measured in Kilogram per Cubic Meter) - Ultimate BOD is the amount of oxygen required to decompose all of the organic material after infinite time.

STEP 1: Convert Input(s) to Base Unit

BOD of 5 days at 20° C: 6 Milligram per Liter --> 0.006 Kilogram per Cubic Meter (Check conversion here)
Ultimate BOD: 2 Milligram per Liter --> 0.002 Kilogram per Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f = BOD₅/BOD^u --> 0.006/0.002

Evaluating ... ...

f = 3

STEP 3: Convert Result to Output's Unit

3 --> No Conversion Required

FINAL ANSWER

3 <-- Ratio of BOD to Ultimate BOD

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Civil » Environmental Engineering » Treatment of Sewage » Oxygen Requirement of the Aeration Tanks » BOD to Ultimate BOD » Ratio of BOD to Ultimate BOD

Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2100+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< BOD to Ultimate BOD Calculators

Ratio of BOD to Ultimate given Oxygen Demand of Biomass

Go Ratio of BOD to Ultimate BOD = (Sewage Discharge*(Influent BOD-Effluent BOD))/(Theoretical Oxygen Requirement+(Oxygen Demand of Biomass*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge))

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank

Go Ratio of BOD to Ultimate BOD = (Sewage Discharge*(Influent BOD-Effluent BOD))/(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge))

Ratio of BOD to Ultimate BOD

Go Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD

< Important Formulas of Oxygen Requirement of the Aeration Tank Calculators

BOD5 given Oxygen Required in Aeration Tank

Go BOD5 given Oxygen Required in Aeration Tank = Ultimate BOD*(Sewage Discharge*(Influent BOD-Effluent BOD))/(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge))

BOD5 given Ratio of BOD to Ultimate BOD

Go BOD5 given Ratio of BOD to Ultimate BOD = Ratio of BOD to Ultimate BOD*Ultimate BOD

Ratio of BOD to Ultimate BOD

Go Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD

BOD5 when Ratio of BOD to Ultimate BOD is 0.68

Go 5 Days BOD = Ultimate BOD*0.68

Ratio of BOD to Ultimate BOD Formula

Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD
f = BOD₅/BOD^u

What is Ultimate BOD?

The ultimate BOD is the amount of oxygen required to decompose all of the organic material after infinite time. This is usually simply calculated by conducting the experiment over a 20thday period.

How to Calculate Ratio of BOD to Ultimate BOD?

Ratio of BOD to Ultimate BOD calculator uses Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD to calculate the Ratio of BOD to Ultimate BOD, Ratio of BOD to Ultimate BOD formula is defined as a dimensionless value that expresses the amount of oxygen required for the biodegradation of organic matter in a specific period, typically five days, relative to the total oxygen demand. This ratio is essential in determining the oxygen requirement of the aeration tank in wastewater treatment. Ratio of BOD to Ultimate BOD is denoted by f symbol.

How to calculate Ratio of BOD to Ultimate BOD using this online calculator? To use this online calculator for Ratio of BOD to Ultimate BOD, enter BOD of 5 days at 20° C (BOD₅) & Ultimate BOD (BOD^u) and hit the calculate button. Here is how the Ratio of BOD to Ultimate BOD calculation can be explained with given input values -> 3 = 0.006/0.002.

FAQ

What is Ratio of BOD to Ultimate BOD?

Ratio of BOD to Ultimate BOD formula is defined as a dimensionless value that expresses the amount of oxygen required for the biodegradation of organic matter in a specific period, typically five days, relative to the total oxygen demand. This ratio is essential in determining the oxygen requirement of the aeration tank in wastewater treatment and is represented as f = BOD₅/BOD^u or Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD. BOD of 5 days at 20° C is an indicator of how much oxygen is utilized by a natural water sample in five days at 20° C & Ultimate BOD is the amount of oxygen required to decompose all of the organic material after infinite time.

How to calculate Ratio of BOD to Ultimate BOD?

Ratio of BOD to Ultimate BOD formula is defined as a dimensionless value that expresses the amount of oxygen required for the biodegradation of organic matter in a specific period, typically five days, relative to the total oxygen demand. This ratio is essential in determining the oxygen requirement of the aeration tank in wastewater treatment is calculated using Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD. To calculate Ratio of BOD to Ultimate BOD, you need BOD of 5 days at 20° C (BOD₅) & Ultimate BOD (BOD^u). With our tool, you need to enter the respective value for BOD of 5 days at 20° C & Ultimate BOD and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Ratio of BOD to Ultimate BOD?

In this formula, Ratio of BOD to Ultimate BOD uses BOD of 5 days at 20° C & Ultimate BOD. We can use 2 other way(s) to calculate the same, which is/are as follows -

Ratio of BOD to Ultimate BOD = (Sewage Discharge*(Influent BOD-Effluent BOD))/(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge))
Ratio of BOD to Ultimate BOD = (Sewage Discharge*(Influent BOD-Effluent BOD))/(Theoretical Oxygen Requirement+(Oxygen Demand of Biomass*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge))

Home

FREE PDFs

🔍 Search