River Stream Concentration Calculator

✖Mixing concentration is the concentration obtained after sewage gets mixed in the river stream.ⓘ Mixing concentration [C]			+10% -10%
✖Sewage discharge is the flow rate of sewage when it is being discharged in the river.ⓘ Sewage Discharge [Q_s]			+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%

✖River concentration is the concentration of river parameters like bod, do etc.ⓘ River Stream Concentration [C_R]

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Formula

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River Stream Concentration

Formula

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

Example

`"1.366667"=("1.2"*("10m³/s"+"60m³/s")-("0.2"*"10m³/s"))/"60m³/s"`

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River Stream Concentration Solution

STEP 0: Pre-Calculation Summary

Formula Used

River concentration = (Mixing concentration*(Sewage Discharge+Discharge in Stream)-(Sewage Concentration*Sewage Discharge))/Discharge in Stream
C_R = (C*(Q_s+Q_s)-(C_s*Q_s))/Q_s
This formula uses 5 Variables

Variables Used

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.
Sewage Discharge - (Measured in Cubic Meter per Second) - Sewage discharge is the flow rate of sewage when it is being discharged in the river.
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

Mixing concentration: 1.2 --> No Conversion Required
Sewage Discharge: 10 Cubic Meter per Second --> 10 Cubic Meter per Second 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

C_R = (C*(Q_s+Q_s)-(C_s*Q_s))/Q_s --> (1.2*(10+60)-(0.2*10))/60

Evaluating ... ...

C_R = 1.36666666666667

STEP 3: Convert Result to Output's Unit

1.36666666666667 --> No Conversion Required

FINAL ANSWER

1.36666666666667 ≈ 1.366667 <-- River concentration

(Calculation completed in 00.004 seconds)

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Created by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

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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

River Stream Concentration Formula

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

What is BOD?

BOD is a measure of the amount of oxygen required to remove waste organic matter from water in the process of decomposition by aerobic bacteria.

How to Calculate River Stream Concentration?

River Stream Concentration calculator uses River concentration = (Mixing concentration*(Sewage Discharge+Discharge in Stream)-(Sewage Concentration*Sewage Discharge))/Discharge in Stream to calculate the River concentration, The River Stream Concentration is the concentration of parameters like BOD,DO,suspended solids in river water. River concentration is denoted by C_R symbol.

How to calculate River Stream Concentration using this online calculator? To use this online calculator for River Stream Concentration, enter Mixing concentration (C), Sewage Discharge (Q_s), Discharge in Stream (Q_s) & Sewage Concentration (C_s) and hit the calculate button. Here is how the River Stream Concentration calculation can be explained with given input values -> 1.366667 = (1.2*(10+60)-(0.2*10))/60.

FAQ

What is River Stream Concentration?

The River Stream Concentration is the concentration of parameters like BOD,DO,suspended solids in river water and is represented as C_R = (C*(Q_s+Q_s)-(C_s*Q_s))/Q_s or River concentration = (Mixing concentration*(Sewage Discharge+Discharge in Stream)-(Sewage Concentration*Sewage Discharge))/Discharge in Stream. Mixing concentration is the concentration obtained after sewage gets mixed in the river stream, Sewage discharge is the flow rate of sewage when it is being discharged in the river, 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 River Stream Concentration?

The River Stream Concentration is the concentration of parameters like BOD,DO,suspended solids in river water is calculated using River concentration = (Mixing concentration*(Sewage Discharge+Discharge in Stream)-(Sewage Concentration*Sewage Discharge))/Discharge in Stream. To calculate River Stream Concentration, you need Mixing concentration (C), Sewage Discharge (Q_s), Discharge in Stream (Q_s) & Sewage Concentration (C_s). With our tool, you need to enter the respective value for Mixing concentration, Sewage Discharge, 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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