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Effluent BOD given Oxygen Demand of Biomass Formula

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Effluent BOD given Oxygen Demand of Biomass is the amount of oxygen that is consumed by the microbial population in the effluent to decompose organic matter present. Check FAQs

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

Q_b - Effluent BOD given Oxygen Demand of Biomass?Q_i - Influent BOD?f - Ratio of BOD to Ultimate BOD?O₂ - Theoretical Oxygen Requirement?D^O2 - Oxygen Demand of Biomass?Q_w - Volume of Wasted Sludge per day?X^R - MLSS in Returned or Wasted Sludge?SF - Sewage Flowrate?

Effluent BOD given Oxygen Demand of Biomass Example

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Here is how the Effluent BOD given Oxygen Demand of Biomass equation looks like with Values.

Here is how the Effluent BOD given Oxygen Demand of Biomass equation looks like with Units.

Here is how the Effluent BOD given Oxygen Demand of Biomass equation looks like.

7.8268 = 13.2 - (\frac{3 \cdot (2.5 + (2.02 \cdot 9.5 \cdot 1.4))}{15})

7.8268mg/L = 13.2mg/L - (\frac{3 \cdot (2.5mg/d + (2.02 \cdot 9.5m³/s \cdot 1.4mg/L))}{15m³/s})

7.8268 = 13.2 - (\frac{3 \cdot (2.5 + (2.02 \cdot 9.5 \cdot 1.4))}{15})

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Effluent BOD given Oxygen Demand of Biomass Solution

Follow our step by step solution on how to calculate Effluent BOD given Oxygen Demand of Biomass?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

Q b = 13.2mg/L - (\frac{3 \cdot (2.5mg/d + (2.02 \cdot 9.5m³/s \cdot 1.4mg/L))}{15m³/s})

Next Step Convert Units

∴

Q b = 0.0132kg/m³ - (\frac{3 \cdot (2.9E-11kg/s + (2.02 \cdot 9.5m³/s \cdot 0.0014kg/m³))}{15m³/s})

Next Step Prepare to Evaluate

∴

Q b = 0.0132 - (\frac{3 \cdot (2.9E-11 + (2.02 \cdot 9.5 \cdot 0.0014))}{15})

Next Step Evaluate

∴

Q b = 0.00782679999421296kg/m³

Next Step Convert to Output's Unit

∴

Q b = 7.82679999421296mg/L

LAST Step Rounding Answer

∴

Q b = 7.8268mg/L

Effluent BOD given Oxygen Demand of Biomass Formula Elements

Variables

Effluent BOD given Oxygen Demand of Biomass

Effluent BOD given Oxygen Demand of Biomass is the amount of oxygen that is consumed by the microbial population in the effluent to decompose organic matter present.

Symbol: Q_b

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find Effluent BOD given Oxygen Demand of Biomass

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

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

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

Oxygen Demand of Biomass

Oxygen Demand of Biomass is the amount of oxygen required by the microorganisms to decompose organic matter present in biomass.

Symbol: D^O2

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Oxygen Demand of Biomass

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

Sewage Flowrate

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

Symbol: SF

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value should be greater than 0.

Formulas to find Sewage Flowrate

Other formulas in Effluent BOD category

Go Effluent BOD given Oxygen Required in Aeration Tank

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

Go Effluent BOD given Ultimate BOD

Q ub = Q i - (\frac{(\frac{BOD5}{BOD u}) \cdot (O 2 + (1.42 \cdot Q w \cdot X R))}{SF})

How to Evaluate Effluent BOD given Oxygen Demand of Biomass?

Effluent BOD given Oxygen Demand of Biomass evaluator uses Effluent BOD given Oxygen Demand of Biomass = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(Oxygen Demand of Biomass*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate) to evaluate the Effluent BOD given Oxygen Demand of Biomass, The Effluent BOD given Oxygen Demand of Biomass formula is defined as the amount of oxygen that is consumed by the microbial population in the effluent to decompose organic matter present in the wastewater. When considering the oxygen demand of biomass, it specifically accounts for the amount of oxygen required by the microbial community to metabolize the organic substrates. Effluent BOD given Oxygen Demand of Biomass is denoted by Q_b symbol.

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

FAQs on Effluent BOD given Oxygen Demand of Biomass

What is the formula to find Effluent BOD given Oxygen Demand of Biomass?

The formula of Effluent BOD given Oxygen Demand of Biomass is expressed as Effluent BOD given Oxygen Demand of Biomass = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(Oxygen Demand of Biomass*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate). Here is an example- 7826.8 = 0.0132-((3*(2.89351851851852E-11+(2.02*9.5*0.0014)))/15).

How to calculate Effluent BOD given Oxygen Demand of Biomass?

With Influent BOD (Q_i), Ratio of BOD to Ultimate BOD (f), Theoretical Oxygen Requirement (O₂), Oxygen Demand of Biomass (D^O2), Volume of Wasted Sludge per day (Q_w), MLSS in Returned or Wasted Sludge (X^R) & Sewage Flowrate (SF) we can find Effluent BOD given Oxygen Demand of Biomass using the formula - Effluent BOD given Oxygen Demand of Biomass = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(Oxygen Demand of Biomass*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate).

Can the Effluent BOD given Oxygen Demand of Biomass be negative?

No, the Effluent BOD given Oxygen Demand of Biomass, measured in Density cannot be negative.

Which unit is used to measure Effluent BOD given Oxygen Demand of Biomass?

Effluent BOD given Oxygen Demand of Biomass is usually measured using the Milligram per Liter[mg/L] for Density. Kilogram per Cubic Meter[mg/L], Kilogram per Cubic Centimeter[mg/L], Gram per Cubic Meter[mg/L] are the few other units in which Effluent BOD given Oxygen Demand of Biomass can be measured.

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Effluent BOD given Oxygen Demand of Biomass Formula

Effluent BOD given Oxygen Demand of Biomass Example

Effluent BOD given Oxygen Demand of Biomass Solution

Effluent BOD given Oxygen Demand of Biomass Formula Elements

Other formulas in Effluent BOD category

How to Evaluate Effluent BOD given Oxygen Demand of Biomass?

FAQs on Effluent BOD given Oxygen Demand of Biomass

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