BOD Influent given MLSS Calculator

✖Daily bod load applied to the aeration system.ⓘ Daily bod [BOD]			+10% -10%
✖MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics).ⓘ MLSS [X]			+10% -10%
✖Volume of tank is defined as the capacity of flocculation and mixing tank.ⓘ Volume of Tank [V]			+10% -10%
✖Total microbial mass in the system in grams.ⓘ Total Microbial Mass [M_t]			+10% -10%
✖Sewage flow into the aeration tank is the sewage flow into the aeration tank when we have prior information of other parameters used.ⓘ Sewage Flow [Q]			+10% -10%

✖Influent BOD is the total amount of BOD which is present in the incoming sewage.ⓘ BOD Influent given MLSS [Q_i]

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Formula

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BOD Influent given MLSS

Formula

`"Q"_{"i"} = ("BOD"*"X"*"V")/("M"_{"t"}*"Q")`

Example

`"0.54mg/L"=("3mg"*"1200mg/L"*"9m³")/("3g"*"20m³")`

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BOD Influent given MLSS Solution

STEP 0: Pre-Calculation Summary

Formula Used

Influent BOD = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Sewage Flow)
Q_i = (BOD*X*V)/(M_t*Q)
This formula uses 6 Variables

Variables Used

Influent BOD - (Measured in Kilogram per Cubic Meter) - Influent BOD is the total amount of BOD which is present in the incoming sewage.
Daily bod - (Measured in Kilogram) - Daily bod load applied to the aeration system.
MLSS - (Measured in Kilogram per Cubic Meter) - MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics).
Volume of Tank - (Measured in Cubic Meter) - Volume of tank is defined as the capacity of flocculation and mixing tank.
Total Microbial Mass - (Measured in Kilogram) - Total microbial mass in the system in grams.
Sewage Flow - (Measured in Cubic Meter) - Sewage flow into the aeration tank is the sewage flow into the aeration tank when we have prior information of other parameters used.

STEP 1: Convert Input(s) to Base Unit

Daily bod: 3 Milligram --> 3E-06 Kilogram (Check conversion here)
MLSS: 1200 Milligram per Liter --> 1.2 Kilogram per Cubic Meter (Check conversion here)
Volume of Tank: 9 Cubic Meter --> 9 Cubic Meter No Conversion Required
Total Microbial Mass: 3 Gram --> 0.003 Kilogram (Check conversion here)
Sewage Flow: 20 Cubic Meter --> 20 Cubic Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_i = (BOD*X*V)/(M_t*Q) --> (3E-06*1.2*9)/(0.003*20)

Evaluating ... ...

Q_i = 0.00054

STEP 3: Convert Result to Output's Unit

0.00054 Kilogram per Cubic Meter -->0.54 Milligram per Liter (Check conversion here)

FINAL ANSWER

0.54 Milligram per Liter <-- Influent BOD

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Environmental Engineering » Treatment of Sewage » Food to Microorganism Ratio or F/M Ratio » BOD Influent given MLSS

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!

< 20 Food to Microorganism Ratio or F/M Ratio Calculators

Microbial Mass in Aeration System given MLSS

Go Total Microbial Mass = Daily bod/((Sewage Flow*Influent BOD)/(Volume of Tank*MLSS))

BOD Load Applied given MLSS

Go Daily bod = Total Microbial Mass*((Sewage Flow*Influent BOD)/(Volume of Tank*MLSS))

MLSS given BOD Load Applied to Aeration System

Go MLSS = (Total Microbial Mass*Sewage Flow*Influent BOD)/(Volume of Tank*Daily bod)

Volume of Tank given MLSS

Go Volume of Tank = (Total Microbial Mass*Sewage Flow*Influent BOD)/(MLSS*Daily bod)

BOD Influent given MLSS

Go Influent BOD = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Sewage Flow)

Sewage Flow given MLSS

Go Sewage Flow = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Influent BOD)

Biological Oxygen Demand influent

Go Biological oxygen demand = (Food to microorganism ratio*Volume of Tank*MLSS)/Sewage Flow

Volume of Tank given Food to Microorganism Ratio

Go Volume of Tank = (Sewage Flow*Influent BOD)/(Food to microorganism ratio*MLSS)

Food to Microorganism Ratio given MLSS

Go Food to microorganism ratio = (Sewage Flow*Influent BOD)/(MLSS*Volume of Tank)

Mixed Liquor Suspended Solid

Go MLSS = (Sewage Flow*Influent BOD)/(Food to microorganism ratio*Volume of Tank)

Sewage Flow given Food to Microorganism Ratio

Go Sewage Flow = (Food to microorganism ratio*Volume of Tank*MLSS)/Influent BOD

Total Microbial Mass given Food to Microorganism Ratio

Go Total Microbial Mass = Daily bod/Food to microorganism ratio

Daily BOD Load given Food to Microorganism Ratio

Go Daily bod = Food to microorganism ratio*Total Microbial Mass

Food to Microorganism Ratio

Go Food to microorganism ratio = Daily bod/Total Microbial Mass

MLSS given Microbial Mass in Aeration System

Go MLSS = (Total Microbial Mass/Volume of Tank)

Volume of Tank given Microbial Mass in Aeration System

Go Volume of Tank = Total Microbial Mass/MLSS

Microbial Mass in Aeration System

Go Total Microbial Mass = MLSS*Volume of Tank

Sewage Flow into Aeration System given BOD Load applied

Go Sewage Flow = Daily bod/Influent BOD

BOD of Influent Sewage given BOD Load applied

Go Influent BOD = Daily bod/Sewage Flow

BOD Load applied to Aeration System

Go Daily bod = Sewage Flow*Influent BOD

BOD Influent given MLSS Formula

Influent BOD = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Sewage Flow)
Q_i = (BOD*X*V)/(M_t*Q)

What is BOD ?

Biochemical oxygen demand is the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

How to Calculate BOD Influent given MLSS?

BOD Influent given MLSS calculator uses Influent BOD = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Sewage Flow) to calculate the Influent BOD, BOD Influent given MLSS is amount of dissolved oxygen needed by aerobic biological organisms to break down organic material. Influent BOD is denoted by Q_i symbol.

How to calculate BOD Influent given MLSS using this online calculator? To use this online calculator for BOD Influent given MLSS, enter Daily bod (BOD), MLSS (X), Volume of Tank (V), Total Microbial Mass (M_t) & Sewage Flow (Q) and hit the calculate button. Here is how the BOD Influent given MLSS calculation can be explained with given input values -> 540 = (3E-06*1.2*9)/(0.003*20).

FAQ

What is BOD Influent given MLSS?

BOD Influent given MLSS is amount of dissolved oxygen needed by aerobic biological organisms to break down organic material and is represented as Q_i = (BOD*X*V)/(M_t*Q) or Influent BOD = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Sewage Flow). Daily bod load applied to the aeration system, MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics), Volume of tank is defined as the capacity of flocculation and mixing tank, Total microbial mass in the system in grams & Sewage flow into the aeration tank is the sewage flow into the aeration tank when we have prior information of other parameters used.

How to calculate BOD Influent given MLSS?

BOD Influent given MLSS is amount of dissolved oxygen needed by aerobic biological organisms to break down organic material is calculated using Influent BOD = (Daily bod*MLSS*Volume of Tank)/(Total Microbial Mass*Sewage Flow). To calculate BOD Influent given MLSS, you need Daily bod (BOD), MLSS (X), Volume of Tank (V), Total Microbial Mass (M_t) & Sewage Flow (Q). With our tool, you need to enter the respective value for Daily bod, MLSS, Volume of Tank, Total Microbial Mass & Sewage Flow 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 Influent BOD?

In this formula, Influent BOD uses Daily bod, MLSS, Volume of Tank, Total Microbial Mass & Sewage Flow. We can use 1 other way(s) to calculate the same, which is/are as follows -

Influent BOD = Daily bod/Sewage Flow

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