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Sewage Discharge given Oxygen Required in Aeration Tank Calculator

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

✖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%
✖Influent BOD is the total amount of BOD which is present in the incoming sewage.ⓘ Influent BOD [Q_i]			+10% -10%
✖Effluent BOD is the amount of BOD present in the outing sewage.ⓘ Effluent BOD [Q]			+10% -10%

✖Sewage Discharge given Oxygen Required is the amount of sewage that needs to be treated in an aeration tank based on the oxygen demand of the microorganisms.ⓘ Sewage Discharge given Oxygen Required in Aeration Tank [Q_oxy]

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Formula

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Sewage Discharge given Oxygen Required in Aeration Tank

Formula

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

Example

4.426406 m³/s = (\frac{3.0 \cdot (2.5 mg/d + (1.42 \cdot 9.5 m³/s \cdot 1.4 mg/L))}{13.2 mg/L - 0.4 mg/L})

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Sewage Discharge given Oxygen Required in Aeration Tank Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

Sewage Discharge given Oxygen Required - (Measured in Cubic Meter per Second) - Sewage Discharge given Oxygen Required is the amount of sewage that needs to be treated in an aeration tank based on the oxygen demand of the microorganisms.
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.
Influent BOD - (Measured in Kilogram per Cubic Meter) - Influent BOD is the total amount of BOD which is present in the incoming sewage.
Effluent BOD - (Measured in Kilogram per Cubic Meter) - Effluent BOD is the amount of BOD present in the outing sewage.

STEP 1: Convert Input(s) to Base Unit

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)
Influent BOD: 13.2 Milligram per Liter --> 0.0132 Kilogram per Cubic Meter (Check conversion here)
Effluent BOD: 0.4 Milligram per Liter --> 0.0004 Kilogram per Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_oxy = ((f*(O₂+(1.42*Q_w*X^R)))/(Q_i-Q)) --> ((3*(2.89351851851852E-11+(1.42*9.5*0.0014)))/(0.0132-0.0004))

Evaluating ... ...

Q_oxy = 4.42640625678168

STEP 3: Convert Result to Output's Unit

4.42640625678168 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

4.42640625678168 ≈ 4.426406 Cubic Meter per Second <-- Sewage Discharge given Oxygen Required

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Environmental Engineering » Treatment of Sewage » Oxygen Requirement of the Aeration Tanks » Sewage Discharge » Sewage Discharge given Oxygen Required in Aeration Tank

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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< Sewage Discharge Calculators

Sewage Discharge given Oxygen Demand and Ultimate BOD Both

Go Sewage Discharge given Oxygen Demand = (((5 Days BOD/Ultimate BOD)*(Oxygen Required+(Oxygen Demand of Biomass*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/(Influent BOD-Effluent BOD))

Sewage Discharge given Oxygen Demand of Biomass

Go Sewage Discharge given Oxygen Demand of Biomass = ((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)))/(Influent BOD-Effluent BOD))

Sewage Discharge given Ultimate BOD

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

Sewage Discharge given Oxygen Required in Aeration Tank

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

< Important Formulas of Oxygen Requirement of the Aeration Tank Calculators

BOD5 given Oxygen Required in Aeration Tank

Go BOD5 given Oxygen Required in Aeration Tank = 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))

BOD5 given Ratio of BOD to Ultimate BOD

Go BOD5 given Ratio of BOD to Ultimate BOD = Ratio of BOD to Ultimate BOD*Ultimate BOD

Ratio of BOD to Ultimate BOD

Go Ratio of BOD to Ultimate BOD = BOD of 5 days at 20° C/Ultimate BOD

BOD5 when Ratio of BOD to Ultimate BOD is 0.68

Go 5 Days BOD = Ultimate BOD*0.68

Sewage Discharge given Oxygen Required in Aeration Tank Formula

What is Sewage?

Sewage, or domestic/municipal wastewater, is a type of wastewater that is produced by a community of people. ... Sewage usually travels from a building's plumbing either into a sewer, which will carry it elsewhere, or into an onsite sewage facility (of which there are many kinds).

How to Calculate Sewage Discharge given Oxygen Required in Aeration Tank?

Sewage Discharge given Oxygen Required in Aeration Tank calculator uses Sewage Discharge given Oxygen Required = ((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/(Influent BOD-Effluent BOD)) to calculate the Sewage Discharge given Oxygen Required, Sewage Discharge given Oxygen Required in Aeration Tank formula is defined as a measure of the amount of oxygen required to remove organic matter from wastewater in an aeration tank, which is essential for maintaining a healthy ecosystem and preventing environmental pollution. Sewage Discharge given Oxygen Required is denoted by Q_oxy symbol.

How to calculate Sewage Discharge given Oxygen Required in Aeration Tank using this online calculator? To use this online calculator for Sewage Discharge given Oxygen Required in Aeration Tank, enter 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), Influent BOD (Q_i) & Effluent BOD (Q) and hit the calculate button. Here is how the Sewage Discharge given Oxygen Required in Aeration Tank calculation can be explained with given input values -> 4.426406 = ((3*(2.89351851851852E-11+(1.42*9.5*0.0014)))/(0.0132-0.0004)).

FAQ

What is Sewage Discharge given Oxygen Required in Aeration Tank?

Sewage Discharge given Oxygen Required in Aeration Tank formula is defined as a measure of the amount of oxygen required to remove organic matter from wastewater in an aeration tank, which is essential for maintaining a healthy ecosystem and preventing environmental pollution and is represented as Q_oxy = ((f*(O₂+(1.42*Q_w*X^R)))/(Q_i-Q)) or Sewage Discharge given Oxygen Required = ((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/(Influent BOD-Effluent BOD)). 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, Influent BOD is the total amount of BOD which is present in the incoming sewage & Effluent BOD is the amount of BOD present in the outing sewage.

How to calculate Sewage Discharge given Oxygen Required in Aeration Tank?

Sewage Discharge given Oxygen Required in Aeration Tank formula is defined as a measure of the amount of oxygen required to remove organic matter from wastewater in an aeration tank, which is essential for maintaining a healthy ecosystem and preventing environmental pollution is calculated using Sewage Discharge given Oxygen Required = ((Ratio of BOD to Ultimate BOD*(Theoretical Oxygen Requirement+(1.42*Volume of Wasted Sludge per day*MLSS in Returned or Wasted Sludge)))/(Influent BOD-Effluent BOD)). To calculate Sewage Discharge given Oxygen Required in Aeration Tank, you need 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), Influent BOD (Q_i) & Effluent BOD (Q). With our tool, you need to enter the respective value for Ratio of BOD to Ultimate BOD, Theoretical Oxygen Requirement, Volume of Wasted Sludge per day, MLSS in Returned or Wasted Sludge, Influent BOD & Effluent BOD 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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