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Effluent BOD given Oxygen Demand and Ultimate BOD Both Formula

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Effluent BOD given Oxygen Demand and Ultimate BOD is the amount of oxygen required by aerobic microorganisms to decompose the organic matter present in a wastewater sample. Check FAQs

Q u = Q i - (\frac{(\frac{BOD5}{BOD u}) \cdot (O 2 + (D O2 \cdot Q w \cdot X R))}{SF})

Q_u - Effluent BOD given Oxygen Demand and Ultimate BOD?Q_i - Influent BOD?BOD5 - 5 Days BOD?BOD^u - 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 and Ultimate BOD Both Example

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Here is how the Effluent BOD given Oxygen Demand and Ultimate BOD Both equation looks like with Values.

Here is how the Effluent BOD given Oxygen Demand and Ultimate BOD Both equation looks like with Units.

Here is how the Effluent BOD given Oxygen Demand and Ultimate BOD Both equation looks like.

11.9821 = 13.2 - (\frac{(\frac{1.36}{2}) \cdot (2.5 + (2.02 \cdot 9.5 \cdot 1.4))}{15})

11.9821mg/L = 13.2mg/L - (\frac{(\frac{1.36mg/L}{2mg/L}) \cdot (2.5mg/d + (2.02 \cdot 9.5m³/s \cdot 1.4mg/L))}{15m³/s})

11.9821 = 13.2 - (\frac{(\frac{1.36}{2}) \cdot (2.5 + (2.02 \cdot 9.5 \cdot 1.4))}{15})

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Effluent BOD given Oxygen Demand and Ultimate BOD Both Solution

Follow our step by step solution on how to calculate Effluent BOD given Oxygen Demand and Ultimate BOD Both?

FIRST Step Consider the formula

Q u = Q i - (\frac{(\frac{BOD5}{BOD u}) \cdot (O 2 + (D O2 \cdot Q w \cdot X R))}{SF})

Next Step Substitute values of Variables

∴

Q u = 13.2mg/L - (\frac{(\frac{1.36mg/L}{2mg/L}) \cdot (2.5mg/d + (2.02 \cdot 9.5m³/s \cdot 1.4mg/L))}{15m³/s})

Next Step Convert Units

∴

Q u = 0.0132kg/m³ - (\frac{(\frac{0.0014kg/m³}{0.002kg/m³}) \cdot (2.9E-11kg/s + (2.02 \cdot 9.5m³/s \cdot 0.0014kg/m³))}{15m³/s})

Next Step Prepare to Evaluate

∴

Q u = 0.0132 - (\frac{(\frac{0.0014}{0.002}) \cdot (2.9E-11 + (2.02 \cdot 9.5 \cdot 0.0014))}{15})

Next Step Evaluate

∴

Q u = 0.0119820746653549kg/m³

Next Step Convert to Output's Unit

∴

Q u = 11.9820746653549mg/L

LAST Step Rounding Answer

∴

Q u = 11.9821mg/L

Effluent BOD given Oxygen Demand and Ultimate BOD Both Formula Elements

Variables

Effluent BOD given Oxygen Demand and Ultimate BOD

Effluent BOD given Oxygen Demand and Ultimate BOD is the amount of oxygen required by aerobic microorganisms to decompose the organic matter present in a wastewater sample.

Symbol: Q_u

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find Effluent BOD given Oxygen Demand and Ultimate BOD

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

5 Days BOD

5 Days BOD is an indicator of how much oxygen is utilized by a natural water sample in five days at 20 degrees C.

Symbol: BOD5

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find 5 Days BOD

Ultimate BOD

Ultimate BOD is the amount of oxygen required to decompose all of the organic material after infinite time.

Symbol: BOD^u

Measurement: DensityUnit: mg/L

Note: Value should be greater than 0.

Formulas to find 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 Oxygen Demand of Biomass

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

How to Evaluate Effluent BOD given Oxygen Demand and Ultimate BOD Both?

Effluent BOD given Oxygen Demand and Ultimate BOD Both evaluator uses Effluent BOD given Oxygen Demand and Ultimate BOD = Influent BOD-(((5 Days BOD/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 and Ultimate BOD, The Effluent BOD given Oxygen Demand and Ultimate BOD Both formula is defined as the calculation of effluent bod given the oxygen demand (a measure of how much oxygen is consumed by microorganisms) and the ultimate BOD (the total amount of oxygen that would be consumed if the decomposition process were allowed to continue to completion). Effluent BOD given Oxygen Demand and Ultimate BOD is denoted by Q_u symbol.

How to evaluate Effluent BOD given Oxygen Demand and Ultimate BOD Both using this online evaluator? To use this online evaluator for Effluent BOD given Oxygen Demand and Ultimate BOD Both, enter Influent BOD (Q_i), 5 Days BOD (BOD5), Ultimate BOD (BOD^u), 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 and Ultimate BOD Both

What is the formula to find Effluent BOD given Oxygen Demand and Ultimate BOD Both?

The formula of Effluent BOD given Oxygen Demand and Ultimate BOD Both is expressed as Effluent BOD given Oxygen Demand and Ultimate BOD = Influent BOD-(((5 Days BOD/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- 11373.11 = 0.0132-(((0.00136/0.002)*(2.89351851851852E-11+(2.02*9.5*0.0014)))/15).

How to calculate Effluent BOD given Oxygen Demand and Ultimate BOD Both?

With Influent BOD (Q_i), 5 Days BOD (BOD5), Ultimate BOD (BOD^u), 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 and Ultimate BOD Both using the formula - Effluent BOD given Oxygen Demand and Ultimate BOD = Influent BOD-(((5 Days BOD/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 and Ultimate BOD Both be negative?

No, the Effluent BOD given Oxygen Demand and Ultimate BOD Both, measured in Density cannot be negative.

Which unit is used to measure Effluent BOD given Oxygen Demand and Ultimate BOD Both?

Effluent BOD given Oxygen Demand and Ultimate BOD Both 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 and Ultimate BOD Both can be measured.

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Effluent BOD given Oxygen Demand and Ultimate BOD Both Formula

Effluent BOD given Oxygen Demand and Ultimate BOD Both Example

Effluent BOD given Oxygen Demand and Ultimate BOD Both Solution

Effluent BOD given Oxygen Demand and Ultimate BOD Both Formula Elements

Other formulas in Effluent BOD category

How to Evaluate Effluent BOD given Oxygen Demand and Ultimate BOD Both?

FAQs on Effluent BOD given Oxygen Demand and Ultimate BOD Both

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