MLSS given SVI and Sewage Discharge Calculator

✖Recirculation flow is the flow generated in recirculation tank collecting the primary treated effluent from a pretreatment component.ⓘ Recirculation flow [Q_r]			+10% -10%
✖Sewage discharge is the flow rate of sewage when it is being discharged in the river.ⓘ Sewage Discharge [Q_s]			+10% -10%
✖Sludge Volume Index is the ratio of volume to MLSS.ⓘ Sludge Volume Index [SVI]			+10% -10%

✖MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics).ⓘ MLSS given SVI and Sewage Discharge [X]

⎘ Copy

👎

Formula

✖

MLSS given SVI and Sewage Discharge

Formula

`"X" = ((("Q"_{"r"}/"Q"_{"s"})*(10^6))/"SVI")/(1+("Q"_{"r"}/"Q"_{"s"}))`

Example

`"6944.348mg/L"=((("12m³/d"/"10m³/s")*(10^6))/"2L/g")/(1+("12m³/d"/"10m³/s"))`

Calculator

LaTeX

Reset

👍

Download Environmental Engineering Formula PDF

MLSS given SVI and Sewage Discharge Solution

STEP 0: Pre-Calculation Summary

Formula Used

MLSS = (((Recirculation flow/Sewage Discharge)*(10^6))/Sludge Volume Index)/(1+(Recirculation flow/Sewage Discharge))
X = (((Q_r/Q_s)*(10^6))/SVI)/(1+(Q_r/Q_s))
This formula uses 4 Variables

Variables Used

MLSS - (Measured in Kilogram per Cubic Meter) - MLSS is the sum of volatile suspended solids (organics) and fixed suspended solids (inorganics).
Recirculation flow - (Measured in Cubic Meter per Second) - Recirculation flow is the flow generated in recirculation tank collecting the primary treated effluent from a pretreatment component.
Sewage Discharge - (Measured in Cubic Meter per Second) - Sewage discharge is the flow rate of sewage when it is being discharged in the river.
Sludge Volume Index - (Measured in Cubic Meter per Kilogram) - Sludge Volume Index is the ratio of volume to MLSS.

STEP 1: Convert Input(s) to Base Unit

Recirculation flow: 12 Cubic Meter per Day --> 0.000138888888888889 Cubic Meter per Second (Check conversion here)
Sewage Discharge: 10 Cubic Meter per Second --> 10 Cubic Meter per Second No Conversion Required
Sludge Volume Index: 2 Liter per Gram --> 2 Cubic Meter per Kilogram (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

X = (((Q_r/Q_s)*(10^6))/SVI)/(1+(Q_r/Q_s)) --> (((0.000138888888888889/10)*(10^6))/2)/(1+(0.000138888888888889/10))

Evaluating ... ...

X = 6.94434799516674

STEP 3: Convert Result to Output's Unit

6.94434799516674 Kilogram per Cubic Meter -->6944.34799516674 Milligram per Liter (Check conversion here)

FINAL ANSWER

6944.34799516674 ≈ 6944.348 Milligram per Liter <-- MLSS

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Environmental Engineering » Treatment of Sewage » Sludge Recycle and Rate of Returned Sludge » Mixed Liquor Suspended Solid MLSS » MLSS given SVI and Sewage Discharge

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!

< 3 Mixed Liquor Suspended Solid MLSS Calculators

MLSS given SVI and Sewage Discharge

Go MLSS = (((Recirculation flow/Sewage Discharge)*(10^6))/Sludge Volume Index)/(1+(Recirculation flow/Sewage Discharge))

MLSS given Sludge Recirculation Ratio

Go MLSS = (Recirculation Ratio*MLSS in returned or wasted sludge)/(1+Recirculation Ratio)

MLSS given Sludge Volume Index and Recirculation Ratio

Go MLSS = ((Recirculation Ratio*(10^6))/Sludge Volume Index)/(1+Recirculation Ratio)

MLSS given SVI and Sewage Discharge Formula

MLSS = (((Recirculation flow/Sewage Discharge)*(10^6))/Sludge Volume Index)/(1+(Recirculation flow/Sewage Discharge))
X = (((Q_r/Q_s)*(10^6))/SVI)/(1+(Q_r/Q_s))

What is MLSS ?

Mixed liquor suspended solids (MLSS) is the concentration of suspended solids, in an aeration tank during the activated sludge process, which occurs during the treatment of waste water.

How to Calculate MLSS given SVI and Sewage Discharge?

MLSS given SVI and Sewage Discharge calculator uses MLSS = (((Recirculation flow/Sewage Discharge)*(10^6))/Sludge Volume Index)/(1+(Recirculation flow/Sewage Discharge)) to calculate the MLSS, MLSS given SVI and Sewage Discharge calculates mixed liquor suspended solids when we have prior information of other parameters used. MLSS is denoted by X symbol.

How to calculate MLSS given SVI and Sewage Discharge using this online calculator? To use this online calculator for MLSS given SVI and Sewage Discharge, enter Recirculation flow (Q_r), Sewage Discharge (Q_s) & Sludge Volume Index (SVI) and hit the calculate button. Here is how the MLSS given SVI and Sewage Discharge calculation can be explained with given input values -> 6.9E+6 = (((0.000138888888888889/10)*(10^6))/2)/(1+(0.000138888888888889/10)).

FAQ

What is MLSS given SVI and Sewage Discharge?

MLSS given SVI and Sewage Discharge calculates mixed liquor suspended solids when we have prior information of other parameters used and is represented as X = (((Q_r/Q_s)*(10^6))/SVI)/(1+(Q_r/Q_s)) or MLSS = (((Recirculation flow/Sewage Discharge)*(10^6))/Sludge Volume Index)/(1+(Recirculation flow/Sewage Discharge)). Recirculation flow is the flow generated in recirculation tank collecting the primary treated effluent from a pretreatment component, Sewage discharge is the flow rate of sewage when it is being discharged in the river & Sludge Volume Index is the ratio of volume to MLSS.

How to calculate MLSS given SVI and Sewage Discharge?

MLSS given SVI and Sewage Discharge calculates mixed liquor suspended solids when we have prior information of other parameters used is calculated using MLSS = (((Recirculation flow/Sewage Discharge)*(10^6))/Sludge Volume Index)/(1+(Recirculation flow/Sewage Discharge)). To calculate MLSS given SVI and Sewage Discharge, you need Recirculation flow (Q_r), Sewage Discharge (Q_s) & Sludge Volume Index (SVI). With our tool, you need to enter the respective value for Recirculation flow, Sewage Discharge & Sludge Volume Index 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 MLSS?

In this formula, MLSS uses Recirculation flow, Sewage Discharge & Sludge Volume Index. We can use 2 other way(s) to calculate the same, which is/are as follows -

MLSS = (Recirculation Ratio*MLSS in returned or wasted sludge)/(1+Recirculation Ratio)
MLSS = ((Recirculation Ratio*(10^6))/Sludge Volume Index)/(1+Recirculation Ratio)

Home

FREE PDFs

🔍 Search