Sewage Flow Rate Calculator

✖River concentration is the concentration of river parameters like bod, do etc.ⓘ River concentration [C_R]			+10% -10%
✖Mixing concentration is the concentration obtained after sewage gets mixed in the river stream.ⓘ Mixing concentration [C]			+10% -10%
✖Discharge in Stream is the volumetric flow rate of water that is transported through a given cross-sectional area.ⓘ Discharge in Stream [Q_s]			+10% -10%
✖Sewage Concentration can be in terms of bod, do, suspended solids etc.ⓘ Sewage Concentration [C_s]			+10% -10%

✖Sewage discharge is the flow rate of sewage when it is being discharged in the river.ⓘ Sewage Flow Rate [Q_s]

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Formula

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Sewage Flow Rate

Formula

`"Q"_{"s"} = (("C"_{"R"}-"C")*"Q"_{"s"})/("C"-"C"_{"s"})`

Example

`"6m³/s"=(("1.3"-"1.2")*"60m³/s")/("1.2"-"0.2")`

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Sewage Flow Rate Solution

STEP 0: Pre-Calculation Summary

Formula Used

Sewage Discharge = ((River concentration-Mixing concentration)*Discharge in Stream)/(Mixing concentration-Sewage Concentration)
Q_s = ((C_R-C)*Q_s)/(C-C_s)
This formula uses 5 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.
River concentration - River concentration is the concentration of river parameters like bod, do etc.
Mixing concentration - Mixing concentration is the concentration obtained after sewage gets mixed in the river stream.
Discharge in Stream - (Measured in Cubic Meter per Second) - Discharge in Stream is the volumetric flow rate of water that is transported through a given cross-sectional area.
Sewage Concentration - Sewage Concentration can be in terms of bod, do, suspended solids etc.

STEP 1: Convert Input(s) to Base Unit

River concentration: 1.3 --> No Conversion Required
Mixing concentration: 1.2 --> No Conversion Required
Discharge in Stream: 60 Cubic Meter per Second --> 60 Cubic Meter per Second No Conversion Required
Sewage Concentration: 0.2 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_s = ((C_R-C)*Q_s)/(C-C_s) --> ((1.3-1.2)*60)/(1.2-0.2)

Evaluating ... ...

Q_s = 6.00000000000001

STEP 3: Convert Result to Output's Unit

6.00000000000001 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

6.00000000000001 ≈ 6 Cubic Meter per Second <-- Sewage Discharge

(Calculation completed in 00.004 seconds)

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Credits

Created by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has created this Calculator and 500+ more calculators!

Verified by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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< 7 Disposing of the sewage effluents Calculators

River Stream Flow Rate

Go Discharge in Stream = ((Sewage Concentration*Sewage Discharge)-(Mixing concentration*Sewage Discharge))/(Mixing concentration-River concentration)

River Stream Concentration

Go River concentration = (Mixing concentration*(Sewage Discharge+Discharge in Stream)-(Sewage Concentration*Sewage Discharge))/Discharge in Stream

Sewage Concentration

Go Sewage Concentration = (Mixing concentration*(Sewage Discharge+Discharge in Stream)-(River concentration*Discharge in Stream))/Sewage Discharge

Mixing Concentration

Go Mixing concentration = (Sewage Concentration*Sewage Discharge+River concentration*Discharge in Stream)/(Sewage Discharge+Discharge in Stream)

Sewage Flow Rate

Go Sewage Discharge = ((River concentration-Mixing concentration)*Discharge in Stream)/(Mixing concentration-Sewage Concentration)

Actual DO

Go Actual Dissolved Oxygen = Saturated Dissolved Oxygen-Oxygen Deficit

Saturation DO

Go Saturated DO = Oxygen Deficit+Actual DO

Sewage Flow Rate Formula

Sewage Discharge = ((River concentration-Mixing concentration)*Discharge in Stream)/(Mixing concentration-Sewage Concentration)
Q_s = ((C_R-C)*Q_s)/(C-C_s)

What is discharge?

Discharge is the amount of depth of water flow out from the river or reservoir in mm or litres with respect to time.

How to Calculate Sewage Flow Rate?

Sewage Flow Rate calculator uses Sewage Discharge = ((River concentration-Mixing concentration)*Discharge in Stream)/(Mixing concentration-Sewage Concentration) to calculate the Sewage Discharge, The Sewage Flow Rate is the flow rate of sewage. It is expressed in m3/s. It is used to calculate the mixing condition when sewage is discharged in river water. Sewage Discharge is denoted by Q_s symbol.

How to calculate Sewage Flow Rate using this online calculator? To use this online calculator for Sewage Flow Rate, enter River concentration (C_R), Mixing concentration (C), Discharge in Stream (Q_s) & Sewage Concentration (C_s) and hit the calculate button. Here is how the Sewage Flow Rate calculation can be explained with given input values -> 6 = ((1.3-1.2)*60)/(1.2-0.2).

FAQ

What is Sewage Flow Rate?

The Sewage Flow Rate is the flow rate of sewage. It is expressed in m3/s. It is used to calculate the mixing condition when sewage is discharged in river water and is represented as Q_s = ((C_R-C)*Q_s)/(C-C_s) or Sewage Discharge = ((River concentration-Mixing concentration)*Discharge in Stream)/(Mixing concentration-Sewage Concentration). River concentration is the concentration of river parameters like bod, do etc, Mixing concentration is the concentration obtained after sewage gets mixed in the river stream, Discharge in Stream is the volumetric flow rate of water that is transported through a given cross-sectional area & Sewage Concentration can be in terms of bod, do, suspended solids etc.

How to calculate Sewage Flow Rate?

The Sewage Flow Rate is the flow rate of sewage. It is expressed in m3/s. It is used to calculate the mixing condition when sewage is discharged in river water is calculated using Sewage Discharge = ((River concentration-Mixing concentration)*Discharge in Stream)/(Mixing concentration-Sewage Concentration). To calculate Sewage Flow Rate, you need River concentration (C_R), Mixing concentration (C), Discharge in Stream (Q_s) & Sewage Concentration (C_s). With our tool, you need to enter the respective value for River concentration, Mixing concentration, Discharge in Stream & Sewage Concentration 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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