Effluent Substrate Concentration given Theoretical Oxygen Requirement Calculator

✖Influent Substrate Concentration is the concentration of BOD that is present in the influent.ⓘ Influent Substrate Concentration [S_o]			+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%
✖Net waste activated sludge is the amount of waste product that can be treated using the activated sludge process.ⓘ Net waste activated sludge [P_x]			+10% -10%
✖BOD conversion factor is the value that is multiplied in the 5 days BOD to get the value of ultimate BOD.ⓘ BOD conversion factor [f]			+10% -10%
✖Average daily influent flow rate is the total discharge that comes in the reactor.ⓘ Average daily influent flow rate [Q]			+10% -10%

✖Effluent substrate concentration is the concentration of the BOD present in the effluent.ⓘ Effluent Substrate Concentration given Theoretical Oxygen Requirement [S]

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Formula

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Effluent Substrate Concentration given Theoretical Oxygen Requirement

Formula

`"S" = "S"_{"o"}-(("O"_{"2"}+(1.42*"P"_{"x"}))*("f"/(8.34*"Q")))`

Example

`"24.9979mg/L"="25mg/L"-(("2.5mg/d"+(1.42*"20mg/d"))*("0.68"/(8.34*"1.2m³/d")))`

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Effluent Substrate Concentration given Theoretical Oxygen Requirement Solution

STEP 0: Pre-Calculation Summary

Formula Used

Effluent substrate concentration = Influent Substrate Concentration-((Theoretical Oxygen Requirement+(1.42*Net waste activated sludge))*(BOD conversion factor/(8.34*Average daily influent flow rate)))
S = S_o-((O₂+(1.42*P_x))*(f/(8.34*Q)))
This formula uses 6 Variables

Variables Used

Effluent substrate concentration - (Measured in Kilogram per Cubic Meter) - Effluent substrate concentration is the concentration of the BOD present in the effluent.
Influent Substrate Concentration - (Measured in Kilogram per Cubic Meter) - Influent Substrate Concentration is the concentration of BOD that is present in the influent.
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.
Net waste activated sludge - (Measured in Kilogram per Second) - Net waste activated sludge is the amount of waste product that can be treated using the activated sludge process.
BOD conversion factor - BOD conversion factor is the value that is multiplied in the 5 days BOD to get the value of ultimate BOD.
Average daily influent flow rate - (Measured in Cubic Meter per Second) - Average daily influent flow rate is the total discharge that comes in the reactor.

STEP 1: Convert Input(s) to Base Unit

Influent Substrate Concentration: 25 Milligram per Liter --> 0.025 Kilogram per Cubic Meter (Check conversion here)
Theoretical Oxygen Requirement: 2.5 Milligram per Day --> 2.89351851851852E-11 Kilogram per Second (Check conversion here)
Net waste activated sludge: 20 Milligram per Day --> 2.31481481481481E-10 Kilogram per Second (Check conversion here)
BOD conversion factor: 0.68 --> No Conversion Required
Average daily influent flow rate: 1.2 Cubic Meter per Day --> 1.38888888888889E-05 Cubic Meter per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S = S_o-((O₂+(1.42*P_x))*(f/(8.34*Q))) --> 0.025-((2.89351851851852E-11+(1.42*2.31481481481481E-10))*(0.68/(8.34*1.38888888888889E-05)))

Evaluating ... ...

S = 0.0249979004796163

STEP 3: Convert Result to Output's Unit

0.0249979004796163 Kilogram per Cubic Meter -->24.9979004796163 Milligram per Liter (Check conversion here)

FINAL ANSWER

24.9979004796163 ≈ 24.9979 Milligram per Liter <-- Effluent substrate concentration

(Calculation completed in 00.004 seconds)

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Meerut Institute of Engineering and Technology (MIET), Meerut

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< 4 Effluent Substrate Concentration Calculators

Effluent Substrate Concentration given Volume of Reactor

Go Effluent substrate concentration = Influent Substrate Concentration-((Reactor Volume*MLVSS*(1+(Endogenous decay coefficient*Mean Cell Residence Time)))/(Mean Cell Residence Time*Average daily influent flow rate*Maximum Yield Coefficient))

Effluent Flow Rate given Wasting Rate from Return Line

Go Effluent Flow Rate = (Reactor Volume*MLSS/(Mean Cell Residence Time*Solid Concentration in Effluent))-(WAS Pumping Rate from Return Line*Sludge Concentration in Return Line/Solid Concentration in Effluent)

Effluent Substrate Concentration given Theoretical Oxygen Requirement

Go Effluent substrate concentration = Influent Substrate Concentration-((Theoretical Oxygen Requirement+(1.42*Net waste activated sludge))*(BOD conversion factor/(8.34*Average daily influent flow rate)))

Effluent Substrate Concentration given Net Waste Activated Sludge

Go Effluent substrate concentration = Influent Substrate Concentration-(Net waste activated sludge/(Observed Cell Yield*Average daily influent flow rate*8.34))

Effluent Substrate Concentration given Theoretical Oxygen Requirement Formula

What is theoretical oxygen requirement?

The Theoretical oxygen requirement for the removal of the carbonaceous organic matter is the calculated amount of oxygen required to oxidize a compound to its final oxidation products.

How to Calculate Effluent Substrate Concentration given Theoretical Oxygen Requirement?

Effluent Substrate Concentration given Theoretical Oxygen Requirement calculator uses Effluent substrate concentration = Influent Substrate Concentration-((Theoretical Oxygen Requirement+(1.42*Net waste activated sludge))*(BOD conversion factor/(8.34*Average daily influent flow rate))) to calculate the Effluent substrate concentration, The Effluent substrate concentration given theoretical oxygen requirement is the total amount of BOD present in the sewage after it is decomposed. Effluent substrate concentration is denoted by S symbol.

How to calculate Effluent Substrate Concentration given Theoretical Oxygen Requirement using this online calculator? To use this online calculator for Effluent Substrate Concentration given Theoretical Oxygen Requirement, enter Influent Substrate Concentration (S_o), Theoretical Oxygen Requirement (O₂), Net waste activated sludge (P_x), BOD conversion factor (f) & Average daily influent flow rate (Q) and hit the calculate button. Here is how the Effluent Substrate Concentration given Theoretical Oxygen Requirement calculation can be explained with given input values -> 24997.9 = 0.025-((2.89351851851852E-11+(1.42*2.31481481481481E-10))*(0.68/(8.34*1.38888888888889E-05))).

FAQ

What is Effluent Substrate Concentration given Theoretical Oxygen Requirement?

The Effluent substrate concentration given theoretical oxygen requirement is the total amount of BOD present in the sewage after it is decomposed and is represented as S = S_o-((O₂+(1.42*P_x))*(f/(8.34*Q))) or Effluent substrate concentration = Influent Substrate Concentration-((Theoretical Oxygen Requirement+(1.42*Net waste activated sludge))*(BOD conversion factor/(8.34*Average daily influent flow rate))). Influent Substrate Concentration is the concentration of BOD that is present in the influent, Theoretical oxygen requirement is the calculated amount of oxygen required to oxidize a compound to its final oxidation products, Net waste activated sludge is the amount of waste product that can be treated using the activated sludge process, BOD conversion factor is the value that is multiplied in the 5 days BOD to get the value of ultimate BOD & Average daily influent flow rate is the total discharge that comes in the reactor.

How to calculate Effluent Substrate Concentration given Theoretical Oxygen Requirement?

The Effluent substrate concentration given theoretical oxygen requirement is the total amount of BOD present in the sewage after it is decomposed is calculated using Effluent substrate concentration = Influent Substrate Concentration-((Theoretical Oxygen Requirement+(1.42*Net waste activated sludge))*(BOD conversion factor/(8.34*Average daily influent flow rate))). To calculate Effluent Substrate Concentration given Theoretical Oxygen Requirement, you need Influent Substrate Concentration (S_o), Theoretical Oxygen Requirement (O₂), Net waste activated sludge (P_x), BOD conversion factor (f) & Average daily influent flow rate (Q). With our tool, you need to enter the respective value for Influent Substrate Concentration, Theoretical Oxygen Requirement, Net waste activated sludge, BOD conversion factor & Average daily influent flow rate 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 Effluent substrate concentration?

In this formula, Effluent substrate concentration uses Influent Substrate Concentration, Theoretical Oxygen Requirement, Net waste activated sludge, BOD conversion factor & Average daily influent flow rate. We can use 2 other way(s) to calculate the same, which is/are as follows -

Effluent substrate concentration = Influent Substrate Concentration-((Reactor Volume*MLVSS*(1+(Endogenous decay coefficient*Mean Cell Residence Time)))/(Mean Cell Residence Time*Average daily influent flow rate*Maximum Yield Coefficient))
Effluent substrate concentration = Influent Substrate Concentration-(Net waste activated sludge/(Observed Cell Yield*Average daily influent flow rate*8.34))

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