Number of Coliform Organisms at Any Initial Time Calculator

✖Number of coliform at initial time number of coliform bacteria present in the initial sample would then be estimated by counting the number of colonies that grow on the culture medium.ⓘ Number of coliform at initial time [N_t]			+10% -10%
✖Chlorine residual means total chlorine residual at time t.ⓘ Chlorine residual [C_t]			+10% -10%
✖Residence time is defined as the amount of water in a reservoir divided by the rate of addition of water .ⓘ Residence time [t]			+10% -10%

✖Number of coliform present at initial time t0.ⓘ Number of Coliform Organisms at Any Initial Time [N₀]

⎘ Copy

👎

Formula

✖

Number of Coliform Organisms at Any Initial Time

Formula

`"N"_{"0"} = ("N"_{"t"}/(1+0.23*"C"_{"t"}*"t")^(-3))`

Example

`"3.999999"=("3"/(1+0.23*"0.364646mg/L"*"20min")^(-3))`

Calculator

LaTeX

Reset

👍

Download Environmental Engineering Formula PDF PDF Image

Number of Coliform Organisms at Any Initial Time Solution

STEP 0: Pre-Calculation Summary

Formula Used

Number of Coliform = (Number of coliform at initial time/(1+0.23*Chlorine residual*Residence time)^(-3))
N₀ = (N_t/(1+0.23*C_t*t)^(-3))
This formula uses 4 Variables

Variables Used

Number of Coliform - Number of coliform present at initial time t0.
Number of coliform at initial time - Number of coliform at initial time number of coliform bacteria present in the initial sample would then be estimated by counting the number of colonies that grow on the culture medium.
Chlorine residual - (Measured in Kilogram per Cubic Meter) - Chlorine residual means total chlorine residual at time t.
Residence time - (Measured in Second) - Residence time is defined as the amount of water in a reservoir divided by the rate of addition of water .

STEP 1: Convert Input(s) to Base Unit

Number of coliform at initial time: 3 --> No Conversion Required
Chlorine residual: 0.364646 Milligram per Liter --> 0.000364646 Kilogram per Cubic Meter (Check conversion here)
Residence time: 20 Minute --> 1200 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

N₀ = (N_t/(1+0.23*C_t*t)^(-3)) --> (3/(1+0.23*0.000364646*1200)^(-3))

Evaluating ... ...

N₀ = 3.99999868842203

STEP 3: Convert Result to Output's Unit

3.99999868842203 --> No Conversion Required

FINAL ANSWER

3.99999868842203 ≈ 3.999999 <-- Number of Coliform

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Environmental Engineering » Design of a Chlorination System for Wastewater Disinfection » Number of Coliform Organisms at Any Initial Time

Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2200+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< 11 Design of a Chlorination System for Wastewater Disinfection Calculators

Residence Time given Number of Coliform Organisms at Any Particular Time

Go Residence time = ((Number of Coliform/Number of coliform at initial time)^(1/3)-1)/(0.23*Chlorine residual)

Total Chlorine Residual at Any Particular Time

Go Chlorine residual = ((Number of Coliform/Number of coliform at initial time)^(1/3)-1)/(0.23*Residence time)

Number of Coliform Organisms at Any Initial Time

Go Number of Coliform = (Number of coliform at initial time/(1+0.23*Chlorine residual*Residence time)^(-3))

Number of Coliform Organisms at Any Particular Time

Go Number of coliform at initial time = Number of Coliform*(1+0.23*Chlorine residual*Residence time)^(-3)

Peaking Factor given Capacity of Chlorinator at Peak Flow

Go Peaking Factor = (Chlorine required/(Average flow*8.34*Dosage))

Average Flow given Capacity of Chlorinator at Peak Flow

Go Average flow = (Chlorine required/(Dosage*Peaking Factor*8.34))

Dosage Used given Capacity of Chlorinator at Peak Flow

Go Dosage = (Chlorine required/(Peaking Factor*Average flow*8.34))

Capacity of Chlorinator at Peak Flow

Go Chlorine required = Dosage*Average flow*8.34*Peaking Factor

Average Flow given Average Daily Consumption of Chlorine

Go Average flow = (Chlorine required/(Dosage*8.34))

Dosage Used given Average Daily Consumption of Chlorine

Go Dosage = (Chlorine required/(8.34*Average flow))

Average Daily Consumption of Chlorine

Go Chlorine required = Dosage*Average flow*8.34

Number of Coliform Organisms at Any Initial Time Formula

Number of Coliform = (Number of coliform at initial time/(1+0.23*Chlorine residual*Residence time)^(-3))
N₀ = (N_t/(1+0.23*C_t*t)^(-3))

What is coliform ?

Coliform bacteria are defined as Rod shaped Gram-negative non-spore forming and motile or non-motile bacteria which can ferment lactose with the production of acid and gas when incubated at 35–37°C.

How to Calculate Number of Coliform Organisms at Any Initial Time?

Number of Coliform Organisms at Any Initial Time calculator uses Number of Coliform = (Number of coliform at initial time/(1+0.23*Chlorine residual*Residence time)^(-3)) to calculate the Number of Coliform, The Number of Coliform Organisms at Any Initial Time is defined as the number of coliform present initially when we have prior information of other parameters. Number of Coliform is denoted by N₀ symbol.

How to calculate Number of Coliform Organisms at Any Initial Time using this online calculator? To use this online calculator for Number of Coliform Organisms at Any Initial Time, enter Number of coliform at initial time (N_t), Chlorine residual (C_t) & Residence time (t) and hit the calculate button. Here is how the Number of Coliform Organisms at Any Initial Time calculation can be explained with given input values -> 40.44382 = (3/(1+0.23*0.000364646*1200)^(-3)).

FAQ

What is Number of Coliform Organisms at Any Initial Time?

The Number of Coliform Organisms at Any Initial Time is defined as the number of coliform present initially when we have prior information of other parameters and is represented as N₀ = (N_t/(1+0.23*C_t*t)^(-3)) or Number of Coliform = (Number of coliform at initial time/(1+0.23*Chlorine residual*Residence time)^(-3)). Number of coliform at initial time number of coliform bacteria present in the initial sample would then be estimated by counting the number of colonies that grow on the culture medium, Chlorine residual means total chlorine residual at time t & Residence time is defined as the amount of water in a reservoir divided by the rate of addition of water .

How to calculate Number of Coliform Organisms at Any Initial Time?

The Number of Coliform Organisms at Any Initial Time is defined as the number of coliform present initially when we have prior information of other parameters is calculated using Number of Coliform = (Number of coliform at initial time/(1+0.23*Chlorine residual*Residence time)^(-3)). To calculate Number of Coliform Organisms at Any Initial Time, you need Number of coliform at initial time (N_t), Chlorine residual (C_t) & Residence time (t). With our tool, you need to enter the respective value for Number of coliform at initial time, Chlorine residual & Residence time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search