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Correction Factor is that which is multiplied with the result of an equation to correct for a known amount of systematic error. Check FAQs
Cf=NNsD(1.024)T-209.17
Cf - Correction Factor?N - Oxygen Transferred?Ns - Oxygen Transfer Capacity?D - Difference between Saturation DO and Operation DO?T - Temperature?

Correction Factor Example

With values
With units
Only example

Here is how the Correction Factor equation looks like with Values.

Here is how the Correction Factor equation looks like with Units.

Here is how the Correction Factor equation looks like.

0.4395Edit=3Edit2.03Edit6600Edit(1.024)85Edit-209.17
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Correction Factor Solution

Follow our step by step solution on how to calculate Correction Factor?

FIRST Step Consider the formula
Cf=NNsD(1.024)T-209.17
Next Step Substitute values of Variables
Cf=3kg/h/kW2.03kg/h/kW6600mg/L(1.024)85K-209.17
Next Step Convert Units
Cf=8.3E-7kg/s/W5.6E-7kg/s/W6.6kg/m³(1.024)85K-209.17
Next Step Prepare to Evaluate
Cf=8.3E-75.6E-76.6(1.024)85-209.17
Next Step Evaluate
Cf=0.439494490718218
LAST Step Rounding Answer
Cf=0.4395

Correction Factor Formula Elements

Variables
Correction Factor
Correction Factor is that which is multiplied with the result of an equation to correct for a known amount of systematic error.
Symbol: Cf
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Oxygen Transferred
Oxygen Transferred is the amount of oxygen that is moved from the air into the water.
Symbol: N
Measurement: Specific Fuel ConsumptionUnit: kg/h/kW
Note: Value should be greater than 0.
Oxygen Transfer Capacity
Oxygen Transfer Capacity is the ability of a system, typically in a wastewater treatment context, to transfer oxygen from the air into the water.
Symbol: Ns
Measurement: Specific Fuel ConsumptionUnit: kg/h/kW
Note: Value should be greater than 0.
Difference between Saturation DO and Operation DO
Difference between Saturation DO and Operation DO is the value obtained after subtracting operation DO from saturation DO.
Symbol: D
Measurement: DensityUnit: mg/L
Note: Value should be greater than 0.
Temperature
Temperature is the degree or intensity of heat present in a substance or object.
Symbol: T
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.

Other Formulas to find Correction Factor

​Go Correction Factor given Oxygen Transfer Capacity
Cf=NNs(DS-DL)(1.024)T-209.17

Other formulas in Operation D.O Level category

​Go Ratio of BOD to Ultimate BOD
f=BOD5BODu
​Go BOD5 given Oxygen Required in Aeration Tank
BOD5a=BODuQs(Qi-Q)O2+(1.42QwXR)
​Go BOD5 given Ratio of BOD to Ultimate BOD
BOD5r=fBODu
​Go BOD5 when Ratio of BOD to Ultimate BOD is 0.68
BOD5=BODu0.68

How to Evaluate Correction Factor?

Correction Factor evaluator uses Correction Factor = Oxygen Transferred/((Oxygen Transfer Capacity*Difference between Saturation DO and Operation DO*(1.024)^(Temperature-20))/(9.17)) to evaluate the Correction Factor, Correction Factor formula is defined as a dimensionless value that adjusts the oxygen requirement of an aeration tank based on factors such as temperature, dissolved oxygen, and tank size, providing a more accurate estimate of oxygen needs for efficient wastewater treatment. Correction Factor is denoted by Cf symbol.

How to evaluate Correction Factor using this online evaluator? To use this online evaluator for Correction Factor, enter Oxygen Transferred (N), Oxygen Transfer Capacity (Ns), Difference between Saturation DO and Operation DO (D) & Temperature (T) and hit the calculate button.

FAQs on Correction Factor

What is the formula to find Correction Factor?
The formula of Correction Factor is expressed as Correction Factor = Oxygen Transferred/((Oxygen Transfer Capacity*Difference between Saturation DO and Operation DO*(1.024)^(Temperature-20))/(9.17)). Here is an example- 0.439494 = 8.33333333333333E-07/((5.63888888888889E-07*6.6*(1.024)^(85-20))/(9.17)).
How to calculate Correction Factor?
With Oxygen Transferred (N), Oxygen Transfer Capacity (Ns), Difference between Saturation DO and Operation DO (D) & Temperature (T) we can find Correction Factor using the formula - Correction Factor = Oxygen Transferred/((Oxygen Transfer Capacity*Difference between Saturation DO and Operation DO*(1.024)^(Temperature-20))/(9.17)).
What are the other ways to Calculate Correction Factor?
Here are the different ways to Calculate Correction Factor-
  • Correction Factor=Oxygen Transferred/((Oxygen Transfer Capacity*(Dissolved Oxygen Saturation-Operation Dissolved Oxygen)*(1.024)^(Temperature-20))/(9.17))OpenImg
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