Sewage Discharge given Oxygen Demand of Biomass Solution

STEP 0: Pre-Calculation Summary
Formula Used
Sewage Discharge = ((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))
Qs = ((f*(O2+(DO2*Qw*XR)))/(Qi-Qo))
This formula uses 8 Variables
Variables Used
Sewage Discharge - (Measured in Cubic Meter per Second) - Sewage discharge is the flow rate of sewage when it is being discharged in the river.
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.
Oxygen demand of biomass - Oxygen demand of biomass is the amount of oxygen required.
Volume of Wasted Sludge per day - (Measured in Cubic Meter per Second) - Volume of wasted sludge per day is measured in terms of discharge.
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 litre.
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: 1.6 --> No Conversion Required
Theoretical Oxygen Requirement: 2.5 Milligram per Day --> 2.89351851851852E-11 Kilogram per Second (Check conversion here)
Oxygen demand of biomass: 2 --> No Conversion Required
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: 2 Milligram per Liter --> 0.002 Kilogram per Cubic Meter (Check conversion here)
Influent BOD: 11.2 Milligram per Liter --> 0.0112 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
Qs = ((f*(O2+(DO2*Qw*XR)))/(Qi-Qo)) --> ((1.6*(2.89351851851852E-11+(2*9.5*0.002)))/(0.0112-0.0004))
Evaluating ... ...
Qs = 5.62962963391632
STEP 3: Convert Result to Output's Unit
5.62962963391632 Cubic Meter per Second --> No Conversion Required
FINAL ANSWER
5.62962963391632 5.62963 Cubic Meter per Second <-- Sewage Discharge
(Calculation completed in 00.004 seconds)

Credits

Created by Suraj Kumar
Birsa Institute of Technology (BIT), Sindri
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Meerut Institute of Engineering and Technology (MIET), Meerut
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4 Sewage Discharge Calculators

Sewage Discharge given Oxygen Demand and Ultimate BOD Both
Go Sewage Discharge = (((5 days BOD/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 Oxygen Demand of Biomass
Go Sewage Discharge = ((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 = (((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 = ((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))

Sewage Discharge given Oxygen Demand of Biomass Formula

Sewage Discharge = ((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))
Qs = ((f*(O2+(DO2*Qw*XR)))/(Qi-Qo))

What is sewage ?

Sewage, or domestic/municipal wastewater, is a type of wastewater that is produced by a community of people. It is characterized by volume or rate of flow, physical condition, chemical and toxic constituents, and its bacteriologic status (which organisms it contains and in what quantities).

How to Calculate Sewage Discharge given Oxygen Demand of Biomass?

Sewage Discharge given Oxygen Demand of Biomass calculator uses Sewage Discharge = ((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)) to calculate the Sewage Discharge, Sewage Discharge given Oxygen Demand of Biomass calculates sewage discharge when we have prior information of other parameters used. Sewage Discharge is denoted by Qs symbol.

How to calculate Sewage Discharge given Oxygen Demand of Biomass using this online calculator? To use this online calculator for Sewage Discharge given Oxygen Demand of Biomass, enter Ratio of BOD to Ultimate BOD (f), Theoretical Oxygen Requirement (O2), Oxygen demand of biomass (DO2), Volume of Wasted Sludge per day (Qw), MLSS in returned or wasted sludge (XR), Influent BOD (Qi) & Effluent BOD (Qo) and hit the calculate button. Here is how the Sewage Discharge given Oxygen Demand of Biomass calculation can be explained with given input values -> 5.62963 = ((1.6*(2.89351851851852E-11+(2*9.5*0.002)))/(0.0112-0.0004)).

FAQ

What is Sewage Discharge given Oxygen Demand of Biomass?
Sewage Discharge given Oxygen Demand of Biomass calculates sewage discharge when we have prior information of other parameters used and is represented as Qs = ((f*(O2+(DO2*Qw*XR)))/(Qi-Qo)) or Sewage Discharge = ((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)). 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, Oxygen demand of biomass is the amount of oxygen required, Volume of wasted sludge per day is measured in terms of discharge, MLSS in returned or wasted sludge is the mixed liquor suspended solids in returned sludge in terms of mg per litre, 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 Demand of Biomass?
Sewage Discharge given Oxygen Demand of Biomass calculates sewage discharge when we have prior information of other parameters used is calculated using Sewage Discharge = ((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)). To calculate Sewage Discharge given Oxygen Demand of Biomass, you need Ratio of BOD to Ultimate BOD (f), Theoretical Oxygen Requirement (O2), Oxygen demand of biomass (DO2), Volume of Wasted Sludge per day (Qw), MLSS in returned or wasted sludge (XR), Influent BOD (Qi) & Effluent BOD (Qo). With our tool, you need to enter the respective value for 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 and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Sewage Discharge?
In this formula, Sewage Discharge uses 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. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Sewage Discharge = ((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))
  • Sewage Discharge = (((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 = (((5 days BOD/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))
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