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Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Formula

GoRatio of BOD to Ultimate given Oxygen Demand of Biomass Formula

GoRatio of BOD to Ultimate BOD Formula

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Ratio of BOD to Ultimate BOD is the ratio of 5 days bod to ultimate bod. Check FAQs

f = \frac{Q s \cdot (Q i - Q)}{O 2 + (1.42 \cdot Q w \cdot X R)}

f - Ratio of BOD to Ultimate BOD?Q_s - Sewage Discharge?Q_i - Influent BOD?Q - Effluent BOD?O₂ - Theoretical Oxygen Requirement?Q_w - Volume of Wasted Sludge per day?X^R - MLSS in Returned or Wasted Sludge?

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Example

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Here is how the Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank equation looks like with Values.

Here is how the Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank equation looks like with Units.

Here is how the Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank equation looks like.

6.7775 = \frac{10 \cdot (13.2 - 0.4)}{2.5 + (1.42 \cdot 9.5 \cdot 1.4)}

6.7775 = \frac{10m³/s \cdot (13.2mg/L - 0.4mg/L)}{2.5mg/d + (1.42 \cdot 9.5m³/s \cdot 1.4mg/L)}

6.7775 = \frac{10 \cdot (13.2 - 0.4)}{2.5 + (1.42 \cdot 9.5 \cdot 1.4)}

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Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Solution

Follow our step by step solution on how to calculate Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank?

FIRST Step Consider the formula

f = \frac{Q s \cdot (Q i - Q)}{O 2 + (1.42 \cdot Q w \cdot X R)}

Next Step Substitute values of Variables

∴

f = \frac{10m³/s \cdot (13.2mg/L - 0.4mg/L)}{2.5mg/d + (1.42 \cdot 9.5m³/s \cdot 1.4mg/L)}

Next Step Convert Units

∴

f = \frac{10m³/s \cdot (0.0132kg/m³ - 0.0004kg/m³)}{2.9E-11kg/s + (1.42 \cdot 9.5m³/s \cdot 0.0014kg/m³)}

Next Step Prepare to Evaluate

∴

f = \frac{10 \cdot (0.0132 - 0.0004)}{2.9E-11 + (1.42 \cdot 9.5 \cdot 0.0014)}

Next Step Evaluate

∴

f = 6.77750713776827

LAST Step Rounding Answer

∴

f = 6.7775

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Formula Elements

Variables

Ratio of BOD to Ultimate BOD

Ratio of BOD to Ultimate BOD is the ratio of 5 days bod to ultimate bod.

Symbol: f

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Ratio of BOD to Ultimate BOD

Sewage Discharge

Sewage Discharge is the flow rate of sewage when it is being discharged in the river.

Symbol: Q_s

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Sewage Discharge

Influent BOD

Influent BOD is the total amount of BOD which is present in the incoming sewage.

Symbol: Q_i

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find Influent BOD

Effluent BOD

Effluent BOD is the amount of BOD present in the outing sewage.

Symbol: Q

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find Effluent BOD

Theoretical Oxygen Requirement

Theoretical Oxygen Requirement is the calculated amount of oxygen required to oxidize a compound to its final oxidation products.

Symbol: O₂

Measurement: Mass Flow RateUnit: mg/d

Note: Value should be greater than 0.

Formulas to find Theoretical Oxygen Requirement

Volume of Wasted Sludge per day

Volume of Wasted Sludge per day is the amount of sludge that is removed or wasted from a wastewater treatment process on a daily basis.

Symbol: Q_w

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Volume of Wasted Sludge per day

MLSS in Returned or Wasted Sludge

MLSS in Returned or Wasted Sludge is the mixed liquor suspended solids in returned sludge in terms of mg per liter.

Symbol: X^R

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find MLSS in Returned or Wasted Sludge

Other Formulas to find Ratio of BOD to Ultimate BOD

Go Ratio of BOD to Ultimate given Oxygen Demand of Biomass

f = \frac{Q s \cdot (Q i - Q)}{O 2 + (D O2 \cdot Q w \cdot X R)}

Go Ratio of BOD to Ultimate BOD

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

How to Evaluate Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank?

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank evaluator uses 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)) to evaluate the Ratio of BOD to Ultimate BOD, The Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank formula is defined as the calculation of ratio of BOD to ultimate BOD when we have prior information of oxygen required in aeration tank. Ratio of BOD to Ultimate BOD is denoted by f symbol.

How to evaluate Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank using this online evaluator? To use this online evaluator for Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank, enter Sewage Discharge (Q_s), Influent BOD (Q_i), Effluent BOD (Q), Theoretical Oxygen Requirement (O₂), Volume of Wasted Sludge per day (Q_w) & MLSS in Returned or Wasted Sludge (X^R) and hit the calculate button.

FAQs on Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank

What is the formula to find Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank?

The formula of Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank is expressed as 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)). Here is an example- 4.518338 = (10*(0.0132-0.0004))/(2.89351851851852E-11+(1.42*9.5*0.0014)).

How to calculate Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank?

With Sewage Discharge (Q_s), Influent BOD (Q_i), Effluent BOD (Q), Theoretical Oxygen Requirement (O₂), Volume of Wasted Sludge per day (Q_w) & MLSS in Returned or Wasted Sludge (X^R) we can find Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank using the formula - 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)).

What are the other ways to Calculate Ratio of BOD to Ultimate BOD?

Here are the different ways to Calculate Ratio of BOD to Ultimate BOD-

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 BOD=BOD of 5 days at 20° C/Ultimate BOD

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Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Formula

​GoRatio of BOD to Ultimate given Oxygen Demand of Biomass Formula

​GoRatio of BOD to Ultimate BOD Formula

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Example

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Solution

Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank Formula Elements

Other Formulas to find Ratio of BOD to Ultimate BOD

How to Evaluate Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank?

FAQs on Ratio of BOD to Ultimate given Oxygen Required in Aeration Tank

Variable Name

GoRatio of BOD to Ultimate given Oxygen Demand of Biomass Formula

GoRatio of BOD to Ultimate BOD Formula