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MLSS Returned given Oxygen Demand of Biomass Calculator

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

✖Sewage Discharge is the flow rate of sewage when it is being discharged in the river.ⓘ Sewage Discharge [Q_s]			+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 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.ⓘ Effluent BOD given Oxygen Demand of Biomass [Q_b]			+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%
✖Oxygen Demand of Biomass is the amount of oxygen required by the microorganisms to decompose organic matter present in biomass.ⓘ Oxygen Demand of Biomass [D^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 Returned given Oxygen Demand of Biomass [X^R]

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MLSS Returned given Oxygen Demand of Biomass Solution

STEP 0: Pre-Calculation Summary

Formula Used

MLSS in Returned or Wasted Sludge = (((Sewage Discharge*(Influent BOD-Effluent BOD given Oxygen Demand of Biomass))/Ratio of BOD to Ultimate BOD)-Theoretical Oxygen Requirement)/(Oxygen Demand of Biomass*Volume of Wasted Sludge per day)
X^R = (((Q_s*(Q_i-Q_b))/f)-O₂)/(D^O2*Q_w)
This formula uses 8 Variables

Variables Used

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 Discharge - (Measured in Cubic Meter per Second) - Sewage Discharge is the flow rate of sewage when it is being discharged in the river.
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 given Oxygen Demand of Biomass - (Measured in Kilogram per Cubic Meter) - 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.
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 by the microorganisms to decompose organic matter present in biomass.
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.

STEP 1: Convert Input(s) to Base Unit

Sewage Discharge: 10 Cubic Meter per Second --> 10 Cubic Meter per Second No Conversion Required
Influent BOD: 13.2 Milligram per Liter --> 0.0132 Kilogram per Cubic Meter (Check conversion here)
Effluent BOD given Oxygen Demand of Biomass: 7.1402 Milligram per Liter --> 0.0071402 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)
Oxygen Demand of Biomass: 2.02 --> No Conversion Required
Volume of Wasted Sludge per day: 9.5 Cubic Meter per Second --> 9.5 Cubic Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

X^R = (((Q_s*(Q_i-Q_b))/f)-O₂)/(D^O2*Q_w) --> (((10*(0.0132-0.0071402))/3)-2.89351851851852E-11)/(2.02*9.5)

Evaluating ... ...

X^R = 0.00105259683712341

STEP 3: Convert Result to Output's Unit

0.00105259683712341 Kilogram per Cubic Meter -->1.05259683712341 Milligram per Liter (Check conversion here)

FINAL ANSWER

1.05259683712341 ≈ 1.052597 Milligram per Liter <-- MLSS in Returned or Wasted Sludge

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Environmental Engineering » Treatment of Sewage » Oxygen Requirement of the Aeration Tanks » MLSS Returned » MLSS Returned given Oxygen Demand of Biomass

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< MLSS Returned Calculators

MLSS Returned given Oxygen Demand and Ultimate BOD Both

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

MLSS Returned given Oxygen Demand of Biomass

LaTeX Go MLSS in Returned or Wasted Sludge = (((Sewage Discharge*(Influent BOD-Effluent BOD 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 Returned given Ultimate BOD

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

MLSS Returned given Oxygen Required in Aeration Tank

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

MLSS Returned given Oxygen Demand of Biomass Formula

LaTeX Go

What is MLSS?

Mixed liquor suspended solids (MLSS) is the concentration of suspended solids, in an aeration tank during the activated sludge process, which occurs during the treatment of waste water.

How to Calculate MLSS Returned given Oxygen Demand of Biomass?

MLSS Returned given Oxygen Demand of Biomass calculator uses MLSS in Returned or Wasted Sludge = (((Sewage Discharge*(Influent BOD-Effluent BOD given Oxygen Demand of Biomass))/Ratio of BOD to Ultimate BOD)-Theoretical Oxygen Requirement)/(Oxygen Demand of Biomass*Volume of Wasted Sludge per day) to calculate the MLSS in Returned or Wasted Sludge, The MLSS Returned given Oxygen Demand of Biomass formula is defined as the calculation of value ok MLSS when we have prior information of oxygen demand of biomass. MLSS in Returned or Wasted Sludge is denoted by X^R symbol.

How to calculate MLSS Returned given Oxygen Demand of Biomass using this online calculator? To use this online calculator for MLSS Returned given Oxygen Demand of Biomass, enter Sewage Discharge (Q_s), Influent BOD (Q_i), Effluent BOD given Oxygen Demand of Biomass (Q_b), 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) and hit the calculate button. Here is how the MLSS Returned given Oxygen Demand of Biomass calculation can be explained with given input values -> 1400 = (((10*(0.0132-0.0071402))/3)-2.89351851851852E-11)/(2.02*9.5).

FAQ

What is MLSS Returned given Oxygen Demand of Biomass?

The MLSS Returned given Oxygen Demand of Biomass formula is defined as the calculation of value ok MLSS when we have prior information of oxygen demand of biomass and is represented as X^R = (((Q_s*(Q_i-Q_b))/f)-O₂)/(D^O2*Q_w) or MLSS in Returned or Wasted Sludge = (((Sewage Discharge*(Influent BOD-Effluent BOD given Oxygen Demand of Biomass))/Ratio of BOD to Ultimate BOD)-Theoretical Oxygen Requirement)/(Oxygen Demand of Biomass*Volume of Wasted Sludge per day). Sewage Discharge is the flow rate of sewage when it is being discharged in the river, Influent BOD is the total amount of BOD which is present in the incoming sewage, 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, 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 by the microorganisms to decompose organic matter present in biomass & 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.

How to calculate MLSS Returned given Oxygen Demand of Biomass?

The MLSS Returned given Oxygen Demand of Biomass formula is defined as the calculation of value ok MLSS when we have prior information of oxygen demand of biomass is calculated using MLSS in Returned or Wasted Sludge = (((Sewage Discharge*(Influent BOD-Effluent BOD given Oxygen Demand of Biomass))/Ratio of BOD to Ultimate BOD)-Theoretical Oxygen Requirement)/(Oxygen Demand of Biomass*Volume of Wasted Sludge per day). To calculate MLSS Returned given Oxygen Demand of Biomass, you need Sewage Discharge (Q_s), Influent BOD (Q_i), Effluent BOD given Oxygen Demand of Biomass (Q_b), 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). With our tool, you need to enter the respective value for Sewage Discharge, Influent BOD, Effluent BOD given Oxygen Demand of Biomass, Ratio of BOD to Ultimate BOD, Theoretical Oxygen Requirement, Oxygen Demand of Biomass & Volume of Wasted Sludge per day 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 MLSS in Returned or Wasted Sludge?

In this formula, MLSS in Returned or Wasted Sludge uses Sewage Discharge, Influent BOD, Effluent BOD given Oxygen Demand of Biomass, Ratio of BOD to Ultimate BOD, Theoretical Oxygen Requirement, Oxygen Demand of Biomass & Volume of Wasted Sludge per day. We can use 3 other way(s) to calculate the same, which is/are as follows -

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

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