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Effluent BOD given Oxygen Required in Aeration Tank Calculator

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Effluent BOD Important Formulas of Oxygen Requirement of the Aeration Tank BOD to Ultimate BOD BOD5 More >>

✖Influent BOD is the total amount of BOD which is present in the incoming sewage.ⓘ Influent BOD [Q_i]			+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]			+10% -10%
✖Theoretical Oxygen Requirement is the calculated amount of oxygen required to oxidize a compound to its final oxidation products.ⓘ Theoretical Oxygen Requirement [O₂]			+10% -10%
✖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.ⓘ Volume of Wasted Sludge per day [Q_w]			+10% -10%
✖MLSS in Returned or Wasted Sludge is the mixed liquor suspended solids in returned sludge in terms of mg per liter.ⓘ MLSS in Returned or Wasted Sludge [X^R]			+10% -10%
✖Sewage Flowrate is the flow rate of sewage when it is being discharged in the river.ⓘ Sewage Flowrate [SF]			+10% -10%

✖Effluent BOD given Oxygen Required in Aeration Tank is the amount of biodegradable organic matter in the treated wastewater.ⓘ Effluent BOD given Oxygen Required in Aeration Tank [Q_o]

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Formula

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Effluent BOD given Oxygen Required in Aeration Tank

Formula

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

Example

9.4228 mg/L = 13.2 mg/L - (\frac{3.0 \cdot (2.5 mg/d + (1.42 \cdot 9.5 m³/s \cdot 1.4 mg/L))}{15 m³/s})

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Effluent BOD given Oxygen Required in Aeration Tank Solution

STEP 0: Pre-Calculation Summary

Formula Used

Effluent BOD given Oxygen Required = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate)
Q_o = Q_i-((f*(O₂+(1.42*Q_w*X^R)))/SF)
This formula uses 7 Variables

Variables Used

Effluent BOD given Oxygen Required - (Measured in Kilogram per Cubic Meter) - Effluent BOD given Oxygen Required in Aeration Tank is the amount of biodegradable organic matter in the treated wastewater.
Influent BOD - (Measured in Kilogram per Cubic Meter) - Influent BOD is the total amount of BOD which is present in the incoming sewage.
Ratio of BOD to Ultimate BOD - Ratio of BOD to Ultimate BOD is the ratio of 5 days bod to ultimate bod.
Theoretical Oxygen Requirement - (Measured in Kilogram per Second) - Theoretical Oxygen Requirement is the calculated amount of oxygen required to oxidize a compound to its final oxidation products.
Volume of Wasted Sludge per day - (Measured in Cubic Meter per Second) - 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.
MLSS in Returned or Wasted Sludge - (Measured in Kilogram per Cubic Meter) - MLSS in Returned or Wasted Sludge is the mixed liquor suspended solids in returned sludge in terms of mg per liter.
Sewage Flowrate - (Measured in Cubic Meter per Second) - Sewage Flowrate is the flow rate of sewage when it is being discharged in the river.

STEP 1: Convert Input(s) to Base Unit

Influent BOD: 13.2 Milligram per Liter --> 0.0132 Kilogram per Cubic Meter (Check conversion here)
Ratio of BOD to Ultimate BOD: 3 --> No Conversion Required
Theoretical Oxygen Requirement: 2.5 Milligram per Day --> 2.89351851851852E-11 Kilogram per Second (Check conversion here)
Volume of Wasted Sludge per day: 9.5 Cubic Meter per Second --> 9.5 Cubic Meter per Second No Conversion Required
MLSS in Returned or Wasted Sludge: 1.4 Milligram per Liter --> 0.0014 Kilogram per Cubic Meter (Check conversion here)
Sewage Flowrate: 15 Cubic Meter per Second --> 15 Cubic Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_o = Q_i-((f*(O₂+(1.42*Q_w*X^R)))/SF) --> 0.0132-((3*(2.89351851851852E-11+(1.42*9.5*0.0014)))/15)

Evaluating ... ...

Q_o = 0.00942279999421296

STEP 3: Convert Result to Output's Unit

0.00942279999421296 Kilogram per Cubic Meter -->9.42279999421296 Milligram per Liter (Check conversion here)

FINAL ANSWER

9.42279999421296 ≈ 9.4228 Milligram per Liter <-- Effluent BOD given Oxygen Required

(Calculation completed in 00.020 seconds)

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< Effluent BOD Calculators

Effluent BOD given Oxygen Demand and Ultimate BOD Both

Go 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)

Effluent BOD given Oxygen Demand of Biomass

Go 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)

Effluent BOD given Ultimate BOD

Go Effluent BOD given Ultimate BOD = Influent BOD-(((5 Days BOD/Ultimate BOD)*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate)

Effluent BOD given Oxygen Required in Aeration Tank

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

Effluent BOD given Oxygen Required in Aeration Tank Formula

What is BOD?

Biochemical oxygen demand is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

How to Calculate Effluent BOD given Oxygen Required in Aeration Tank?

Effluent BOD given Oxygen Required in Aeration Tank calculator uses Effluent BOD given Oxygen Required = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate) to calculate the Effluent BOD given Oxygen Required, The Effluent BOD given Oxygen Required in Aeration Tank formula is defined as the concentration of biodegradable organic matter in the treated wastewater that is discharged from an aeration tank in a wastewater treatment plant. The BOD value indicates the amount of oxygen required by microorganisms to decompose this organic matter. When given the oxygen required in an aeration tank, the effluent BOD can be determined as it reflects the efficiency of the biological treatment process. Effluent BOD given Oxygen Required is denoted by Q_o symbol.

How to calculate Effluent BOD given Oxygen Required in Aeration Tank using this online calculator? To use this online calculator for Effluent BOD given Oxygen Required in Aeration Tank, enter Influent BOD (Q_i), Ratio of BOD to Ultimate BOD (f), Theoretical Oxygen Requirement (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. Here is how the Effluent BOD given Oxygen Required in Aeration Tank calculation can be explained with given input values -> 9422.8 = 0.0132-((3*(2.89351851851852E-11+(1.42*9.5*0.0014)))/15).

FAQ

What is Effluent BOD given Oxygen Required in Aeration Tank?

The Effluent BOD given Oxygen Required in Aeration Tank formula is defined as the concentration of biodegradable organic matter in the treated wastewater that is discharged from an aeration tank in a wastewater treatment plant. The BOD value indicates the amount of oxygen required by microorganisms to decompose this organic matter. When given the oxygen required in an aeration tank, the effluent BOD can be determined as it reflects the efficiency of the biological treatment process and is represented as Q_o = Q_i-((f*(O₂+(1.42*Q_w*X^R)))/SF) or Effluent BOD given Oxygen Required = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate). Influent BOD is the total amount of BOD which is present in the incoming sewage, Ratio of BOD to Ultimate BOD is the ratio of 5 days bod to ultimate bod, Theoretical Oxygen Requirement is the calculated amount of oxygen required to oxidize a compound to its final oxidation products, 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, MLSS in Returned or Wasted Sludge is the mixed liquor suspended solids in returned sludge in terms of mg per liter & Sewage Flowrate is the flow rate of sewage when it is being discharged in the river.

How to calculate Effluent BOD given Oxygen Required in Aeration Tank?

The Effluent BOD given Oxygen Required in Aeration Tank formula is defined as the concentration of biodegradable organic matter in the treated wastewater that is discharged from an aeration tank in a wastewater treatment plant. The BOD value indicates the amount of oxygen required by microorganisms to decompose this organic matter. When given the oxygen required in an aeration tank, the effluent BOD can be determined as it reflects the efficiency of the biological treatment process is calculated using Effluent BOD given Oxygen Required = Influent BOD-((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/Sewage Flowrate). To calculate Effluent BOD given Oxygen Required in Aeration Tank, you need Influent BOD (Q_i), Ratio of BOD to Ultimate BOD (f), Theoretical Oxygen Requirement (O₂), Volume of Wasted Sludge per day (Q_w), MLSS in Returned or Wasted Sludge (X^R) & Sewage Flowrate (SF). With our tool, you need to enter the respective value for Influent BOD, Ratio of BOD to Ultimate BOD, Theoretical Oxygen Requirement, Volume of Wasted Sludge per day, MLSS in Returned or Wasted Sludge & Sewage Flowrate and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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