Self Purification Constant Calculator

✖Reoxygenation coefficient implies the higher the flow velocity, the higher the re-oxygenation coefficient.ⓘ Reoxygenation coefficient [K_R]			+10% -10%
✖Deoxygenation Constant is the value obtained after decomposing of oxygen in sewage.ⓘ Deoxygenation Constant [K_D]			+10% -10%

✖Self purification constant is the ratio of reoxygenation constant to deoxygenation constant.ⓘ Self Purification Constant [f]

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Formula

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Self Purification Constant

Formula

`"f" = "K"_{"R"}/"K"_{"D"}`

Example

`"0.434783"="0.1d⁻¹"/"0.23d⁻¹"`

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Self Purification Constant Solution

STEP 0: Pre-Calculation Summary

Formula Used

Self purification constant = Reoxygenation coefficient/Deoxygenation Constant
f = K_R/K_D
This formula uses 3 Variables

Variables Used

Self purification constant - Self purification constant is the ratio of reoxygenation constant to deoxygenation constant.
Reoxygenation coefficient - (Measured in 1 Per Second) - Reoxygenation coefficient implies the higher the flow velocity, the higher the re-oxygenation coefficient.
Deoxygenation Constant - (Measured in 1 Per Second) - Deoxygenation Constant is the value obtained after decomposing of oxygen in sewage.

STEP 1: Convert Input(s) to Base Unit

Reoxygenation coefficient: 0.1 1 Per Day --> 1.15740740740741E-06 1 Per Second (Check conversion here)
Deoxygenation Constant: 0.23 1 Per Day --> 2.66203703703704E-06 1 Per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f = K_R/K_D --> 1.15740740740741E-06/2.66203703703704E-06

Evaluating ... ...

f = 0.434782608695653

STEP 3: Convert Result to Output's Unit

0.434782608695653 --> No Conversion Required

FINAL ANSWER

0.434782608695653 ≈ 0.434783 <-- Self purification constant

(Calculation completed in 00.004 seconds)

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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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< 3 Self Purification Constant Calculators

Self Purification Constant given Log value of Critical Oxygen Deficit

Go Self purification constant = Oxygen Equivalent/10^(log10(Critical oxygen deficit)+(Deoxygenation Constant*Critical time))

Self Purification Constant given Critical Oxygen Deficit

Go Self purification constant = Oxygen Equivalent*10^(-Deoxygenation Constant*Critical time)/Critical oxygen deficit

Self Purification Constant

Go Self purification constant = Reoxygenation coefficient/Deoxygenation Constant

Self Purification Constant Formula

Self purification constant = Reoxygenation coefficient/Deoxygenation Constant
f = K_R/K_D

What is deoxygenation constant?

The Deoxygenation constant is the BOD rate constant at given temperature on base 10. Its unit is per day.

How to Calculate Self Purification Constant?

Self Purification Constant calculator uses Self purification constant = Reoxygenation coefficient/Deoxygenation Constant to calculate the Self purification constant, The Self Purification Constant is the ratio of reoxygenation constant to deoxygenation constant. The value ranges between 0.5 to 5. Self purification constant is denoted by f symbol.

How to calculate Self Purification Constant using this online calculator? To use this online calculator for Self Purification Constant, enter Reoxygenation coefficient (K_R) & Deoxygenation Constant (K_D) and hit the calculate button. Here is how the Self Purification Constant calculation can be explained with given input values -> 0.434783 = 1.15740740740741E-06/2.66203703703704E-06.

FAQ

What is Self Purification Constant?

The Self Purification Constant is the ratio of reoxygenation constant to deoxygenation constant. The value ranges between 0.5 to 5 and is represented as f = K_R/K_D or Self purification constant = Reoxygenation coefficient/Deoxygenation Constant. Reoxygenation coefficient implies the higher the flow velocity, the higher the re-oxygenation coefficient & Deoxygenation Constant is the value obtained after decomposing of oxygen in sewage.

How to calculate Self Purification Constant?

The Self Purification Constant is the ratio of reoxygenation constant to deoxygenation constant. The value ranges between 0.5 to 5 is calculated using Self purification constant = Reoxygenation coefficient/Deoxygenation Constant. To calculate Self Purification Constant, you need Reoxygenation coefficient (K_R) & Deoxygenation Constant (K_D). With our tool, you need to enter the respective value for Reoxygenation coefficient & Deoxygenation Constant 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 Self purification constant?

In this formula, Self purification constant uses Reoxygenation coefficient & Deoxygenation Constant. We can use 2 other way(s) to calculate the same, which is/are as follows -

Self purification constant = Oxygen Equivalent*10^(-Deoxygenation Constant*Critical time)/Critical oxygen deficit
Self purification constant = Oxygen Equivalent/10^(log10(Critical oxygen deficit)+(Deoxygenation Constant*Critical time))

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